BSc final year projects (diploma works), MSc theses and PhD theses ...

BSc final year projects (diploma works), MSc theses and PhD theses 

defended at the Department for Nuclear and Particle Physics in the 

period of last five years 

BSc final year projects (diploma works) 

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Ana Umievi 

Astrophysical S(E) factor for the reaction 7 Li(p,α) 4 He 

The "Trojan horse" method, as applied to this reaction, is discussed in detail and its results are 

compared to the results of extrapolations of direct measurements and recent compilations. 

Consequences for the production of light elements in the early Universe and in stars are also 

discussed. 

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Emilija Panti 

Optimization of light detectors for CRESST dark matter search 

The CaWO 4 crystals which are used in the CRESST experiment as the dark matter detector 

medium yield both the thermal and light output. Here the potentials of silicon-on-sapphire as light 

detector absorber are explored and it is found suitable as the light detector for the next phase of 

the CRESST experiment. 

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Nikola Novakovi 

Measurement of the lifetime of the 59.5 keV state in 237 Np 

Alpha particles feeding the 59.5 keV state in 237 Np from the decay of 241 Am were detected by the 

silicon light diode situated in a small vacuum chamber, while the 59.5 keV gamma-ray was 

detected by the NaI(Tl) scintillation detector. The signals from these detectors were fed to the 

TAC where the resolution of some 150 ns was achieved. Slope of the time curve yields the 

lifetime of 76 ns, which is well accounted for by the Nilsson model of the involved nuclei. 

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Vladan Pejovi 

The problem of background in the thallium experiment for the solar neutrino flux 

measurement 

Production of 205 Pb by cosmic-ray muons in thallium minerals is main source of background in 

this experiment. It is strongly depth dependent and is due to erosion significantly time dependent. 

To assess the contribution of slow and fast muons to the solar neutrino signal the uniform erosion 

model based on the measured 26 Al concentration in adjacent quartz minerals has been developed. 

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Ivan Smiljani 

Limitations of the method for the identification of b-quark events based on the AABTAG 

program 

The possibilities and limitations of the b-tagging method for the identification of b-quark events 

were investigated on the complete sample of simulated hadronic events (Z 0 → qq ) at the resonant 

Z 0 energy. The generated and analyzed events corresponded to the real data collected at the 

DELPHI detector. As witnessed by the results of application of many different cuts the b-tagging 

method was found suitable for the analysis of these events. 

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Andrija Mati 

Search for the virtual state of the deuteron 

The neutrons from the 252 Cf source were passed through a thin plastic scintillator and then 

through water, and the ensuing gamma-rays were measured by the Ge gamma-ray detector in 

coincidence with amplitude selected signals from the plastic trigger detector. No significant lines 

were found in the spectra. This demonstrates that the existence of the virtual state does not lead to 

significant increase of capture cross section at neutron energy which corresponds to the energy of 

this state. 

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Ivana Raievi 

Measurements of the neutron background 

The background flux of environmental neutrons of different origin (cosmic-rays, fission, nuclear 

reactions) was measured by means of the NE213 liquid scintillation detector, using the pulse 

shape discriminator technique. The flux was determined at the ground and underground (30 

m.w.e.) levels, and was found to be within the limits determined from the measurements at 

similar locations worldwide. 

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Nenad Vranješ 

Jet multiplicity in hadron-hadron interactions at high energies 

Monte Carlo simulations of proton-proton collisions at energies of 200, 500, 1000, 2000 and 

14000 GeV were performed using the PYTHIA 6.2 simulation package. The jet multiplicity 

density, which carries important information about the interaction, was obtained for zero 

pseudorapidity. It has been shown that the multiplicity depends only logarithmically upon 

available energy. The parameters of this dependence are obtained explicitly. Also, it has been 

demonstrated that spectator jets carry only little information about the interaction. 

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Dimitrije Maleti 

Calibration of the temperature sensor for the needs of temperature control of the CMS 

detector 

The temperature sensor unit to be used for the temperature control of the electromagnetic 

calorimeter of the front end detector of the CMS, composed out of four NTC thermistors, one 

RBFE chip, ADC and a computer, was assembled and calibrated in a heat bath constructed for 

this purpose, by means of a mercury thermometer of an accuracy of 0.2 o C. It has been found that 

the accuracy of the calibration is satisfactory for this particular need. 

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Jelena Donev 

Spectral response of scintillation detectors to cosmic-ray muons 

Program to simulate the spectral response of plastic scintillation detectors of the prismoidal form, 

of the thoroidal NaI(Tl) scintillation detector, and of the spherical NE343 liquid scintillation 

detector to cosmic-ray muons has been developed. The results of the simulation are compared 

with experimental spectra and the need to take into account the effects of multiple and shower 

effects for large detectors has been noted. 

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Jovan Drobnjakovi 

Gamma-ray spectrometry of rare-earth compounds 

High-resolution gamma-ray spectrometry with germanium detector revealed that 227 Ac is a 

companion to lanthanum in its compounds declared as "spectroscopically pure chemicals". Also, 

it has been found that significant activity of isotopes from thorium series accompanies cerium in 

its compounds. Via the gamma-ray lines from the decay of long-lived naturally occurring isotopes 

of lanthanum and lutetium and the detection absolute efficiency calibration a non-destructive 

method for determination of lanthanum and lutetium element concentration has been developed. 

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Dejan Jokovi 

Modifications of the liquid drop model of the nucleus 

Review of nuclear mass formulas based on the liquid drop model is given. Also, an alternative 

mass formula is developed, based on the view of the nucleus as composed of two overlapping 

distributions of protons and neutrons which, uninhibited by the Pauli principle, coexist within the 

same nuclear volume. Two volume and surface terms with independent free fitting coefficients 

and an interaction term with its own coefficient, yield the values of the coefficients which 

reproduce the masses of stable isotopes with about the same accuracy as the original liquid drop 

mass formula. 

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Ivana Vukašinovi 

Determination of isotope content of uranium by gamma-ray spectrometry 

Relative method to determine the isotope content of uranium by high-resolution gamma-ray 

spectrometry of the radiations emitted by the samples of mass down to one tenth of a gram is 

developed and tested up to the accuracy of one percent. The method has been used to assess the 

degree of depletion of the uranium used in anti-armor ammunition. 

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Dejan oki 

On the temperature dependence of the surface energy term in the formula for nuclear 

binding energy 

Temperature dependence of the surface nuclear binding energy term has been established within 

the framework of the combined Fermi gas and liquid drop nuclear models. The Bohr-Wheeler 

model of nuclear fission has also been modified in accordance with this temperature dependence, 

and temperature dependence of the fission parameter Z 2 /A is obtained, suggesting that at modest 

excitations fission becomes possible at lower values of this parameter than follow from the 

original model. 

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Vedrana Gruji 

Variations of cosmic-ray intensity and the polarity of the interplanetary magnetic field 

The data taken by two plastic scintillation detectors which continuously measure the intensity of 

cosmic-ray muons at the ground level and at the depth of 30 m.w.e. form the two time series for 

the year 2002 which were analyzed by the periodogram technique for harmonic components with 

periods in the range from a day to a year. No statistically significant correlation with the polarity 

of the interplanetary magnetic field has been found. 

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Jani Milica 

Branching ratios for neutron emission in the decay of neutron-rich nuclei 

In the decay of very neutron-rich nuclei beta-delayed neutron emission competes with beta decay, 

and branching ratios for these decays represent basic observables in these decays. Equations 

which govern these processes in three successive decays in a series have been developed here in 

detail. They have been applied to the analysis of the complex series of decays which follow the 

decay of 33 Na, that have been measured at the University of Jyuvaskyla in fast neutron induced 

fission experiments. 

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Vukosav abarkapa 

Simulations of cosmic-ray muon energy losses in nuclear detectors 

Program to simulate the passage and energy losses of realistic cosmic-ray muon spectrum through 

the NaI(Tl) detectors of various shape and size is developed. Results of the simulation are 

compared to the spectrum of cosmic-ray energy losses in the big NaI(Tl) annular detector which 

serves as the cosmic-ray muon veto detector that surrounds the HpGe gamma-ray spectrometer 

and reduces its background. The program is found to reproduce this spectrum satisfactorily. 

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Dušan Vudragovi 

Measurements of the emittance of an ion beam by the perforated disc method 

Ion beam delivered by an ECR ion source is prepared for further transport by a pair of extraction 

electrodes the configuration of which determines the emittance of the beam, which should match 

the admittance of the beam line. To determine the emittance the beam is let to pass through the 

perforated mask and to fall on a scintillating screen watched by a video camera. The picture is 

then off-line analyzed by the program developed for this purpose. Quality of the beam has been 

improved thanks to this development. 

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Vladimir Simovi 

Principles of wavelet analysis in the continuous and discrete domain 

The orthonormal basis of local oscillatory functions, or wavelets, is demonstrated to be suitable 

for the analysis of non-stationary time series. Its advantages in comparison to the window Fourier 

transform are analyzed. The sub-coding and theory of multi-resolution analysis are developed and 

aliasing is treated in the context of mirror filters. Potentials of wavelet analysis of non-periodic 

effects in the variations of cosmic-ray intensity at Earth (Forbush effect, etc.) are discussed. 

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Bojana Paskaš 

Analysis of time series of cosmic-ray muon energy losses in plastic scintillation detectors 

Time series of the intensity of the spectrum of cosmic-ray muon energy losses in plastic 

scintillation detector situated at the ground level was analyzed by periodogram technique. The 

spectrum intensity was integrated beyond the energy loss of 30 MeV, what has been found by the 

application of the GEANT4 MC package to correspond to slant muons, incident at zenith angles 

greater than 45 o . It has been found that these high-energy muons are modulated by solar rotation 

significantly weaker than the close-to-vertical lower energy muons. 

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Dušan Radevi 

Analysis of the full simulation of the ATLAS detector at the LHC by means of the Z o decay 

into muons 

Four algorithms for muon reconstruction at the future ATLAS detector, named MOORE, 

SAMUID, MUCOMB and IDMUID, were tested via the muon decay channel of Z o . By 

comparisons with the events generated by the Jimmy/HERWIG MC generator it has been 

demonstrated that among these the MUCOMB algorithm, which uses the tracks obtained by the 

inner detector and the muon spectrometer, yields the best results. 

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Darko Radovanevi 

Invariant function for QED lepton-lepton processes in the single-photon approximation 

Using the Mandelstam variables it is demonstrated that the Feynman amplitude averaged over the 

initial and summed over the final spin states for the single-photon exchange lepton-lepton 

processes can be expressed via a single invariant function of a simple form. This invariant 

function is, for a given process (like the electron-muon and electron-electron scattering) quite 

easy to write down, what avoids the cumbersome and tedious orthodox calculations. 

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Iris Borjanovi 

Reconstruction of the W from the decay of the top at LHC 

One of the steps in the determination of the mass of the top quark at the LHC by means of the 

kinematical fit from the complete hadronic top-antitop decay is the reconstruction of the mass of 

the W. In order to find out the degree to which the reduction of the combinatorial background was 

successful it is instructive to determine the efficiency of the reconstruction of the mass of the W. 

The simulation is here performed at the parton level and it is shown that efficiency of the 

reconstruction is in this way quite satisfactory and far better than by other methods. 

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Jelena Ili 

Deconvolution of gamma-ray spectra by means of the Monte Carlo method 

The Monte Carlo simulation program PHOTON, which is capable of reproducing the spectral 

response functions of gamma-ray spectrometers in complex source-detector geometries, was used 

in an attempt to deconvolute the continuous spectral structures in gamma-ray spectra. The 

background spectrum of the lead shielded HpGe detector has been processed in this way and the 

continuous part of this spectrum due to bremsstrahlung radiations from lead was approximately 

obtained. 

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Marija Kotur 

Double beta decay of germanium-76 

The neutrinoless double-beta decay of 76 Ge has been searched for by the measurement of the 

background spectrum of a heavily shielded HpGe detector situated in a low-background 

laboratory during one week's time. Absence of the line characteristic of this supposed decay 

places the lower limit of 10 19 years for the half-life of this decay mode at the 68%CL.

MSc Theses 

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Vladimir Udovii 

Development and application of the method for neutron detection in presence of 

gamma radiation 

The discrimination between the neutrons and gamma rays was achieved with the NE213 

liquid scintillator detector and making use of the difference in anode pulse rise-times for 

these two types of radiation. For pulse shape discrimination standard modular electronics 

was used. The results obtained were equal or better than those reported in the literature. 

Also, the problem of detecting neutrons from pulsed neutron sources, like the deuterium 

plasma focus device, was satisfactorily solved by using the solid-state nuclear track 

detectors (mica), and neutron yield was reliably determined by this technique. 

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Iris Borjanovi 

Search for the signal of supersymmetry in the ATLAS experiment 

Masses of SUSY particles can be reconstructed from the kinematic boundaries of 

different invariant masses formed out of final state particles. This method is here applied 

to the leptonic decay of the left squark and the decay of the gluino to stop and top quark. 

The first of these consists of the series of three successive decays which in the final state 

have the two leptons of the same flavor and opposite charge, one jet and the lightest 

neutralino that can not be detected. The obtained kinematic boundaries are used to 

reconstruct the masses of the left squark, of the first and second neutralino, and the right 

slepton. Relative errors of reconstructed masses range from 8 to 29 %. 

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Milena Bogdanovi 

Statistical significance of information in the gamma-ray spectra when the counts per 

channel are small 

Reconciliation of the two confronted schools of thought in probability theory, the 

frequentist and the Bayesian, is attempted when applied to the treatment of Poissonian 

counts in high-resolution gamma-ray spectroscopy. The concept of the knowledge 

density function instead of the maximum likelihood function is introduced and the 

algorithm typical of the Bayesian approach is then applied to the treatment of Poissonian

spectral data. The method is applied to the analysis of the gamma-ray spectrum of the 

Heisenberg-Moscow Ge-76 experiment which produced the controversial result for the 

neutrinoless double beta decay of this isotope. 

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Goran Mani 

Detection limits for radioactivity of environmental samples 

Three different internationally recognized and recommended definitions of detection 

limits, or minimum detectable concentration, are explored and compared for the cases of 

alpha counting, total beta counting and gamma-ray spectroscopy with low (NaI(Tl)) and 

high resolution (Ge) detectors for environmental samples of air, water and soil. These 

results are compared to a number of other possible and occassionally used definitions for 

detection limits. Careful analysis of the influence of the division of total measurement 

time to background and sample measurement is also performed. Recommendations for 

everyday practice are issued. 

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Nataša Žiki 

Comparative study of double-beta decays of magic and near-magic nuclei 

Four isotopes in the vicinity of the Z, N=28 magic number are susceptible to double 

positron or electron capture decay and two of these were searched for in this work via the 

search for an intensity of the annihilation line in excess of background intensity in HPGe 

gamma-ray spectra. The decays were 50 CR 

50 Ti, and 64 Zn 

64 Ni, which both 

complete the N or Z = 28 magic number and should have favorable nuclear matrix 

elements for this decay. The obtained limiting values for the half-lives are more stringent 

than the previously existing ones. Other results for double beta decays of otherwise stable 

nuclei in the vicinity of magic numbers are analysed and some evidence is found to 

support the conjecture that decays that complete the magic number configuration are 

enhanced as compared to those that destroy this configuration. 

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Mila Pandurovi 

Measurements of cross-sections for (n,n'γ) reactions on natural lead at energies in 

the range from 0 to 7 MeV 

The pulsed neutron beam from the installation GELINA with an energy spectrum 

streching effectively up to 10 MeV was used to excite the natural lead target and the 

gamma-ray burst following the (n,n'γ) reactions was analyzed by the CLOVER type

HPGe detector in coincidence with the beam. To deal with the great counting rate, the 

pulses were digitized by a fast ADC and the gamma-ray spectrum off-line processed by 

the trapezoid algorithm and the program developed for this purpose. The results for the 

cross-sections for the observed reactions were compared to the theoretical values as 

produced by the TALYS code, and agreement to within 10% was found. 

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Milorad Šiljegovi 

Optimization of ion-sources of the electron resonance type 

The good properties of ECR ion sources, like the high-charge state of delivered ions, 

which are due to high plasma temperature, strong magnetic field at extraction, and the 

like, at the same time induce high transversal emittance of the beam, what limits the ion 

current and degrades the quality of the beam. This work is the detailed study of the 

parameters that influence the emittance, aimed at compromising between the two 

opposed sets of influences and achieving the wanted characteristics of the beam for a 

given purpose. Recommendations concerning extraction electrode configuration for 

different ion species are given in detail. 

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Marko Zupan 

Energy measurements of high-energy photons in the front-end detector of the CMS 

Front-end detector of the CMS consists of the shower detector and electromagnetic 

calorimeter. Resolution of photon energy determination is critical in detection of the 

Higgs decay into two photons and the determination of their invariant mass, or the mass 

of the Higgs. Simulations performed by the CMSIM package have shown that the 

corrections for the energy deposited in the shower detector have positive effect on 

resolution. Also, it has been shown that corrections for the position of the shower kernel 

further improve the resolution, which can thus be brought to the vicinity of 1%, sufficient 

for Higgs mass determination, provided this is smaller than 130 GeV. 

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Laslo Naer 

Experimental check of the exponential decay of 198-Au 

Exact quantum mechanical approach to the decay of the stationary excited eigen-state od 

a quantum system predicts non-exponential behavior for extremely short and extremely 

long times as compared to the mean lifetime of the state in question. An experiment to 

test the exponential nature of the radioacative decay of 198-Au with the highest possible

accuracy has been set, and the results of this experiment were most carefully analyzed for 

possible deviations of the common wisdom exponential character of the decay. The decay 

has, with great effort, been followed through 26 half-lives of the isotope. Apart from an 

unpredicted period of 4.57 half-lives of this decay, with a chi-square of 1.1, which has 

been found in the data, and which did not find any interpretation within the existing 

quantum mechanical framework, the behavior is nicely exponential, with the half-life 

corresponding within error to the world average. 

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Ivana Vukanac 

Non-nuclear applications of ionization chambers 

The conductive current in an AC ionization chamber is due to the drift of ions of both 

signs, while the capacitive current is due to the asymmetric modulation of the electric 

field in the chamber. In a DC chamber there is only the conductive component. AC 

chambers thus appear more sensitive to the presence of chemical vapors within the 

working volume. Average ion mobility depends on vapor concentration logarithmically, 

and this dependence has been established both experimentally and theoretically, by 

solving the system of differential equations, which govern the behavior of the chamber. 

The chamber has been proved a satisfactory sensor for chemical vapors with the 

sensitivity that may be considered sufficient for some applications. 

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Radomir Banjanac 

Optimization of the characteristics of the low-background underground laboratory 

The site of the would-be low-background underground nuclear laboratory (about 30 

m.w.e.) dedicated to low activity measurements for the needs of both fundamental and 

applied research has been thoroughly examined for levels of all sorts of environmental 

radiations in order to assess the suitability for this purpose, prior to beginning of 

construction works. This greatly helped to define the conditions for the project of the 

laboratory. During the works and upon the completion all the parameters of interest were 

measured and background reduction was found equal or better than planned. Among 

other measures for reduction of background, radon reduction down to the level of 10 

Bq/m 3 was achieved by lining and sealing the whole working area (of some 60 m 2 ) with 

aluminium sheet, and pumping in the air through a battery of filters up to an overpressure 

of 2 to 3 mbar. 

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Aleksandar Dragi

On the existence of resonant states of positronium 

Resonant states of positronium turned out to be of special interest after the discovery of 

lines in positron spectra resulting from heavy ion collisions. In this work non-perturbative 

contributions of magnetic interaction at small disances are studied. The spectrum of 

positronium bound states is calculated using the self-consistent Barut-Vigier model and 

the 3 P 0 channel is explored for the existence of resonances. Two techniques were used; 

that of the complex coordinate rotation and the calculation of phase shifts. Phase shifts 

were calculated by direct numerical integration of the Schrodinger equation and by the 

method of phase functions. In neither case the resonances were found.

PhD theses 

Goran Škoro 

Studies of few-nucleon systems by polarized and unpolarized beams of light nuclei 

Experiments concerning pion production in interactions of polarized deuterons with 

momentum in the range from 3 to 9 GeV/c with different light nuclei are analyzed and 

spin dependence of these processes is discussed in detail. Also, interactions of highenergy 

unpolarized light nuclei are studied with emphasis on establishing the threshold at 

which scaling sets in, and finding the differential cross sections for these processes. 

Structure nuclear functions are treated in detail. Among the results of interest there is the 

finding that the spin asymmetry has a maximum of about 40% at low deuterium 

momentum while it almost disappears at higher momenta, and that in unpolarized protonnucleus 

interactions scaling sets in at the momentum of 4.5 GeV/c. 

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Jovan Puzovi 

Contributions of cosmic rays to the background spectra of high-resolution gammaray 

spectrometers 

The production of annihilation radiation by cosmic rays (mostly muons) at sea level in 

Al, Fe, Sn and Pb is measured by means of a triggered HPGe detector. A large plastic 

scintillation detector 5 cm thick with a good discrimination of background radiations 

from cosmic-ray muons, served as a trigger detector. The complex Monte Carlo 

simulation of the whole creation and detection process was developed, and absolute 

detection efficiency was thus derived. Production rate of positrons per unit mass of the 

material is found to be proportional to the square of the atomic number of the material 

divided by its mass number, with the proportionality constant equal to 8.1(3)e-6/s.g. 

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Ivana Piuri 

Collective effects in C+C and C+Ta interactions at 4.2A GeV/c 

Experimental invariant distributions of transverse momenta of negative pions and protons 

resulting from central collisions and central region of rapidity in C+C and C+Ta 

interactions at 4.2 GeV/c per nucleon are studied. The distributions are analyzed within 

the framework of transverse collective motion and boundary models. Invariant mass

spectra of ∆ ++ and ∆ 0 resonances in C+C interactions were obtaind and fitted with Breit- 

Wigner shapes. Masses of resonances agree with those from earlier studies, while their 

widths are by a factor of two smaller than found before. Practically the same number of 

∆ ++ and ∆ 0 resonances is observed what means that about 35% of pions and 25% of 

protons are due to the decay of these resonances. 

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Stanko Dapevi 

Multiparameter optimization of gamma-ray spectrometric measurements of low 

specific radioactivity 

Semi-empirical method for absolute efficiency determination in high-resolution gammaray 

spectrometry of cylindrical voluminous sources of low specific activity and of 

different composition characteristic of environmental samples has been developed, 

including the case of non-coaxial positioning of the source and the detector, and the case 

when the radius of the source exceeds that of the detector. The method has also been 

extended to include the geometry of the Marinelli source. Dependence of the absolute 

detection efficiency on all the relevant parameters has been studied in detail both 

experimentally and theoretically. Most important recommendations concern the optimum 

shape of the cylindical source, the optimum radius-to-height ratio, etc. The errors that 

arise from incomplete knowledge of different parameters of the detector and the source, 

from eventual mispositioning of the source, etc. have also been estimated. 

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Zoran Miloševi 

On the stopping power and energy-loss distributions for α-rays in different media 

Classical and relativistic treatment in the first Born approximation of the passage of 

charged particles through matter are reviewed in detail. All the known corrections, for 

shell effects, density effect, Barkas and Bloch corrections, correction for effective charge 

of the incoming particle, are included. Precise measurements of the stopping power for 

alpha particles in noble gasses, nitrogen and oxygen are performed with errors not 

exceeding 0.7%. Parameters of correction terms were thus fixed and general formula 

completed. Measurements of the width of the distribution of energy losses were also 

performed and these were compared to those given by the approximate analytical formula 

for the width which is obtained by solving the Symon's equations for the second and third 

order of central moments. The agreement was found satisfactory even for thick targets, 

when energy loss amounts up to 70% of the initial energy.

Research work performed by the staff of the Department for Nuclear 

and Particle Physics in the period of last five years 

________________________________________________________________________ 

The members of the Department were during the period of last five years engaged in the 

realization of three major scientific research programs funded by the Ministry of Science 

and Environment Protection of the Republic of Serbia: 

1. High Energy Particle Physics (Project No. 1488) 

2. Low-energy nuclear reactions (Project No. 1461) 

3. Nuclear Spectroscopy and rare nuclear processes (Project No. 1859) 

They also participated in a number of international scientific collaborations: 

1. The CMS (Compact Muon Solenoid) collaboration at LHC, CERN, Geneva 

2. The RHIC (Relativistic Heavy Ion Collider) collaboration at Brookhaven 

3. The ILIAS (Integrated Large Infrastructures for AStroparticle physics) FP6 European 

Framework Project. 

And their output during that period was as follows: 

________________________________________________________________________ 

J.M. Puzovic and I.V.Anicin 

“Production of positron annihilation radiation by cosmic-rays near sea-level”; 

Nucl Instr & Meth in Phys Res, A480 (2002) 565 – 570 

I. Bikit, N. Zikic-Tordorivic, J. Slivka, M. Veskovic, M. Krmar, C. Conckic, J. Puzovic, 

I.V. Anicin 

“Double beta decay of Cr-50”. 

Phys.Rev. C67 (2003) 658 

S.Dragovic, A.Onjia, S.Stankovic, I.Anicin, G.Bacic: 

"Artificial neural network modelling of uncertainty in gamma-ray spectrometry" 

Nucl Instr & Meth in Phys Res, A540 (2005) 455 – 463 

P.R.Adzic,…I.Anicin,… S.Drndarevic,…D.Krpic, … J.Puzovic,…. 

"Recent results on system aspects of the CMS electromagnetic calorimeter" 

CMS Note, CERN, Geneva June 9, 2005

I. Anicin: 

“The neutrino - its past, present and future”; 

12th Yugoslav Conference on Nuclear and Particle Physics; September 17-19, 2001; 

Studenica; Serbia and Montenegro; Nuclear and Particle Physics, SFIN Series A; A2 

(2002) 3 - 59; 

R.Banjanac, A.Dragic, D.Jokovic, V.Udovicic, J.Puzovic, I.Anicin: 

“Continuous monitoring of environmental radioactivity in Belgrade”; 

1st International Meeting on Applied Physics; October, 13-18, 2003; Badajoz; 

Spain; p.128 

A.Dragic, V.Udovicic, R.Banjanac, D.Jokovic, I.Anicin: 

“Bayesian analysis of low radioactivity measurements”; 

Fifth General Conference of the Balkan Physical Union; August 25-29, 2003; 

Vrnjacka Banja; Serbia and Montenegro; Vol. 1 (2003); 81 - 84; 

R.Antanasijevic, D.Joksimovic, V.Udovicic, A.Dragic, J.Stanojevic, R.Banjanac, 

D.Jokovic, I.Anicin; 

“The neutron background measurement at the low-level underground laboratory in 

Zemun”; 

12th Yugoslav Conference on Nuclear and Particle Physics; September, 17-19, 

2001; Studenica; Serbia and Montenegro; Nuclear and Particle Physics, SFIN 

A2 (2002); 170 - 173; 

R.Antanasijevic, D.Joksimovic, V.Udovicic, A.Dragic, J.Stanojevic, R.Banjanac, 

D.Jokovic, I.Anicin, J.Puzovic: 

“Transport of the U-oxides through the ground”; 



A2 (2002); 194 - 198; 

J.Puzovic, I.Anicin: 

“An off-line method for amplitude independent timing”; 



A2 (2002); 183 - 186; 

Z.Radivojevic, I.Anicin, …, J.Puzovic, …, G.Skoro: 

“Numerical Simulation for Unfolding of Complex Activities in Case of 33-Na Decay” 

XXXV Annual Conference of the Finish Physical Society, Jyvaskyla, 2001, 

p. 217 

I.Bikit, J.Slivka, M.Krmar, I.Anicin, M.Veskovic, N.Zikic, Lj.Conkic 

“Double Beta Decay and the Properties of the Neutrino” 

Proceedings for Natural Sciences No. 100, Matica Srpska, Novi Sad 2001

D.S.Mrdja, I.S.Bikit, I.V.Anicin, J.M.Slivka, J.J.Hansman, N.M.Zikic-Todorovic, 

E.Z.Varga, S.M.Curcic, J.M.Puzovic: 

“Background Reduction Using Fe and Pb Shielding” 

J.Res.Phys, 29(2004)65 

N.Zikic-Todorovic, I.Bikit, J.Slivka, M.Veskovic, M.Krmar, Lj.Conkic, E.Varga, 

S.Curcic, D.Mrdja, J.Puzovic, I.Anicin 

“0v Mode in Double Beta Decay of 50-Cr” 

J.Res. Phys. 29(2004)77 

I. Aniin, R. Banjanac, A. Dragi, B. Grabež, D. Jokovi, D. Joksimovi, Z. Mari, 

B.Pani, V. Udovii. 

"Flux and energy distribution of the axial protons emitted from the hydrogen plasma 

focus" 

22 nd Int. Conference on Nuclear Tracks in Solids, Barcelona, Spain, August 23-27, 2002. 

Book of Abstracts (2004) 169. 

I. Aniin, R. Banjanac, A. Dragi, B. Grabež, D. Jokovi, V. Udovii. 

"Variations of radon concentration in the low-level laboratory in Belgrade" 

22 nd Int. Conference on Nuclear Tracks in Solids, Barcelona, Spain, August 23-27, 2002. 

Book of Abstracts (2004) 249. 

I.V.Anicin: 

"Late-Night Thoughts About the Significance of a Small Count of Nuclear or Particle 

Events" 

e-Print Archive:http://archiv.org/abs/physics/0501108 

I.V.Anicin: 

"The Neutrino - Its Past, Present and Future" 

e-Print Archive: http://archiv.org/abs/physics/0503172 

J. Puzovi, A. Dragi, V. Udovii, D. Jokovi, R. Banjanac, I. Aniin 

"Analysis of continuous cosmic-ray measurements in Belgrade" 

28th International Cosmic Ray Conference; July 31 - August 07, 2003; Tsukuba; Japan; 

Proceedings of the 28th International Cosmic Ray Conference (2003) 1199 – 1202. 

I.Aniin, R. Banjanac, A. Dragi, D. Jokovi, V. Udovii 

"Investigation of the uranium solubility and absorption" 

Physica Scripta, Vol. T118 (2005) 39 

I. Aniin, R. Banjanac, A. Dragi, B. Grabež, D. Jokovi, D. Joksimovi, Z. Mari, 

B.Pani, V. Udovii. 

"Flux and energy distribution of the axial protons emitted from the hydrogen plasma 

focus" 

Radiation Measurements, Vol. 39 (2005)

A.Dragi, R. Banjanac, V. Udovii, D. Jokovi, I. Aniin, J. Puzovi 

"Comparative study of power spectra of ground and shallow underground muon data" 

Int. J. Mod. Phys. A (2005) in press 

I. Zborovsky, Y. A. Panebratsev, M. V. Tokarev, G. P. Skoro 

"A-Dependence Of Z-Scaling". 

Int. J. Mod. Phys. A16:1281-1302, 2001 

I. Zborovsky, Y. A. Panebratsev, M. V. Tokarev, G. P. Skoro 

"Z-scaling, fractality and principle of relativity in relativistic collisions of hadrons and 

nuclei". 

International Conference on Ultrarelativistic Nucleus-Nucleus Collisions (QM2001), 

Stony Brook, New York, 15-20 January 2001. 

M. V. Tokarev, Y. A. Panebratsev, G. P. Skoro, I. Zborovsky 

"Self-similarity of high-p(t) hadron production in pi-p and pi-a collisions". 

JINR-E2-2002-251, Dec 2002., 10pp. 16th International Conference on Ultrarelativistic 

Nucleus-Nucleus Collisions: Quark Matter 2002 (QM 2002), Nantes, France, 18-24 Jul 

2002. 

G. P. Skoro 

"Identification of gamma+jet events at STAR (RHIC)". 

XII Yu Conference on Nuclear and Particle Physics, Studenica, 2001, p.193-196. 

G. P. Skoro and M. V. Tokarev 

"Asymmetry of polarized-p + polarized-p ---> gamma + jet + x process and problem of 

delta g". 

e-Print Archive: hep-ph/0009028; STAR Note 425. 

Lj. Simic, G. Skoro, I. Mendas and D. Popovic 

"Measurement of top quark mass in hadronic channel at the LHC". 


I. Borjanovic, Lj. Simic, G. Skoro and D. Popovic 

"gg decay mode for higgs produced in the weak boson fusion at the LHC". 


Lj. Simic, I. Borjanovic, G. Skoro and D. Popovic 

"Predictions of leading order QCD generators for hadronic top quark decay at the LHC". 


J. Ilic and G. Skoro 

"An Algorithm For Finding The Vertex Of A H->Gg Decay In The Presence Of Pileup 

From Minimum Bias Events In CMS At The LHC." 

Proc. of the V General Conference of the Balkan Physical Union, Vrnjacka Banja, 2003, 

p.419-424.

D. Krpic, S. Drndarevic, J. Ilic, G. Skoro, …, S. Backovic 

"Higher baryon resonances in carbon-carbon collisions at 4.2 Gev/c per nucleon." 

The European Physical Journal A, 2004 (accepted) 

I. Picuric, S. Backovic, D. Krpic, G. Skoro, S. Drndarevic 

"Analyses of transverse momentum spectra of baryon resonances in C+C collisions at 4,2 

AGev/c." 


D. Krpic, S. Drndarevic, J. Ilic, G. Skoro, …, S. Backovic 

"Roper resonance in carbon-carbon collisions at 4.2 Gev/c per nucleon" 

Proc. of the V General Conference of the Balkan Physical Union, Vrnjacka Banja, 2003, 

p.453-456 

C. Adler, Z. Ahammed, ..., G. Skoro, …, A.N. Zubarev (STAR Collaboration) 

Measurement of inclusive anti-protons from Au+Au collisions at s(nn)**(1/2) = 130Gev. 

Phys. Rev. Lett. 87:262302, 2001 


Anti-deuteron and anti-He-3 production in s(nn)**(1/2)=130Gev Au+Au collisions. 

Phys. Rev. Lett. 87:262301, 2001 


Pion interferometry of s(nn)**(1/2) = 130 Gev Au+Au collisions at RHIC. 

Phys. Rev. Lett. 87:082301, 2001 


Identified particle elliptic flow in Au+Au collisions at s(nn)**(1/2)=130 Gev. 

Phys. Rev. Lett. 87:182301, 2001 


Multiplicity distribution and spectra of negatively charged hadrons in Au+Au collisions 

at s(nn)**(1/2)=130 Gev. 

Phys. Rev. Lett. 87:112303, 2001 


Midrapidity anti-proton to proton ratio from Au+Au collisions at s(nn)**(1/2)=130 Gev. 

Phys. Rev. Lett. 86:4778-4782, 2001 

K. H. Ackermann, N. Adams, ..., G. Skoro, …, A.N. Zubarev (STAR Collaboration) 

Elliptic flow in Au+Au collisions at s(nn)**(1/2)=130 Gev 

Phys. Rev. Lett. 86:402-407, 2001 

L.S. Barnby, C. Adler, Z. Ahammed, ..., G. Skoro, …, A.N. Zubarev (STAR 

Collaboration)

Strangeness in Au+Au collisions at s(nn)**(1/2)=130 Gev observed with the STAR 

detector. 

J. Phys. G28:1535-1542, 2002 


Midrapidity phi production in Au+Au collisions at s(nn)**(1/2)=130 Gev. 

Phys. Rev. C65:041901, 2002 


Midrapidity lambda and anti-lambda production in Au+Au collisions at s(nn)**(1/2)=130 

Gev 

Phys. Rev. Lett. 89:092301, 2002 


Results from the star experiment. 

Nucl. Phys. A698:64-77, 2002 


Coherent rho0 production in ultraperipheral heavy ion collisions. 

Phys. Rev. Lett. 89:272302, 2002 


Elliptic flow from two and four particle correlations in Au+Au collisions at 

s(nn)**(1/2)=130 Gev 

Phys. Rev. C66:034904, 2002 


K*(892)0 production in relativistic heavy ion collisions at s(nn)**(1/2) = 130 Gev 

Phys. Rev. C66:061901, 2002 


Azimuthal anisotropy of k0(s) and lambda + anti-lambda production at mid-rapidity from 

Au+Au collisions at s(nn)**(1/2)=130 Gev 

Phys. Rev. Lett. 89:132301, 2002 


Centrality dependence of high p(t) hadron suppression in Au+Au collisions at 

s(nn)**(1/2)=130 Gev 

Phys. Rev. Lett. 89:202301, 2002 


Azimuthal anisotropy and correlations in the hard scattering regime at RHIC 

Phys. Rev. Lett. 90:032301, 2003 

K. H. Ackermann, N. Adams, ..., G. Skoro, …, A.N. Zubarev (STAR Collaboration)

STAR detector overview 

Nucl. Instrum. Meth. A499:624-632, 2003 

J. Adams, C. Adler, ..., G. Skoro, …, A.N. Zubarev (STAR Collaboration) 

Strange anti-particle to particle ratios at mid-rapidity in Au+Au collisions at 

s(nn)**(1/2)=130 Gev 

Phys. Lett. B567:167-174, 2003 


Disappearance of back-to-back high p(t) hadron correlations in central Au+Au collisions 

at s(nn)**(1/2)=130 Gev 

Phys. Rev. Lett. 90:082302, 2003 


Narrowing of the balance function with centrality in Au+Au collisions at 

s(nn)**(1/2)=130 Gev 

Phys. Rev. Lett. 90:172301, 2003 


Transverse momentum and collision energy dependence of high p(t) hadron suppression 

in Au+Au collisions at ultrarelativistic energies 

Phys. Rev. Lett. 91:172302, 2003 


Evidence from d+Au measurements for final state suppression of high p(t) hadrons in 

Au+Au collisions at RHIC 

Phys. Rev. Lett. 91:072304, 2003 


Three pion hbt correlations in relativistic heavy ion collisions from the STAR 

experiment 

Phys. Rev. Lett. 91:262301, 2003 


Pion kaon correlations in Au+Au collisions at s(nn)**(1/2)=130 Gev 

Phys. Rev. Lett. 91:262302, 2003 


Multiplicity fluctuations in Au+Au collisions at s(nn)**(1/2)=130 Gev 

Phys. Rev. C68:044905, 2003

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