Curriculum Vitae of Tommaso Tabarelli de Fatis - Dipartimento di ...

Curriculum Vitae of Tommaso Tabarelli de Fatis – February, 2013 

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Dipartimento di Fisica - Università di Milano Bicocca  Tel. +39 02 64482406 

Piazza della Scienza 3 Fax +39 02 64482463 

I-20126 Milano (Italia) e-mail tommaso.tabarelli@mib.infn.it 

Personal information: 

1964-present: Born in Trento, March 7 th ; Italian citizen; married; two children; 

Languages: Italian (mother tongue), English (good), French (fair). 

Academic career and position held: 

• 2005-present: Associate Professor of Physics – Università di Milano Bicocca 1 . 

• 2002-2005: Senior Researcher (“1^ Ricercatore”), I.N.F.N. - Milano. 

• 1995-2002: Researcher, I.N.F.N. – Milano. 

• 1993-1995: Post-Doc at I.N.F.N. (1993) and Università (1994-1995), Milano. 

• 1990-1992: Doctoral stipend - Universtità di Milano. 

• 1989-1990: I.N.F.N. Research fellowship – declined. 

• 1988-1989: Artillery Lieutenant, U.Ti.-Scuola di Aritiglieria, Bracciano (VT). 

Education: 

• 1993: Dottorato di Ricerca in Fisica (Ph.D. in Physics) – Università Milano. 

• 1988: Laurea in Fisica - Università Milano. 

Main responsibilities in coordination of research: 

• 2013-present: CMS Milano Bicocca group leader; institute representative in the CMS 

Collaboration Board (CB) and ECAL Institution and Finance Boards (IB and FB); 

• 2011-2012: Project Leader - CMS Electromagnetic Calorimeter (ECAL); Member of 

the CMS Management Board and Executive Board; Chair of the ECAL Steering 

Committee; ex-officio member of the CMS CB and ECAL IB and FB. 

• 2009-2010: Co-leader of the CMS ECAL Detector Performance Group; Member of 

the ECAL Steering Committee. 

• 2009-present: Member of the CMS ECAL Editorial Board. 

• 2007-2008: CMS ECAL calibration manager and group convenor. 

• 2006: PI – R 2 PC R&D experiment (INFN grant of CSN V). 

• 2003-2005: Local PI – CaPiRe R&D experiment (INFN grant of CSN V). 

• 1998-2001: Leader of the Simulation and Analysis Group of the MONOLITH 

Collaboration (project of an atmospheric neutrino detector); member of the 

MONOLITH Steering Committee. 

• 1999-2001: Member of the DELPHI Editorial Board 

• 1996-1999: Coordinator – Physics Analysis, NA56/SPY Collaboration 

• 1993-1995: Coordinator – DELPHI Electromagnetic Calorimeter test beams 

Main responsibilities in organization: 

• 2009-2011: Membro del Comitato d'Area di Scienze Fisiche, Facoltà di Scienze 

dell'Università di Milano Bicocca. 

• 2006-2009: Responsabile d'indirizzo in Fisica delle Particelle, Corso di Laurea in 

Fisica - Università Milano Bicocca. 

• 2002-2005: Member of the I.N.F.N. Milano Council (Rappresentante dei Ricercatori) 

1 Also Research Associate, Istituto Nazionale di Fisica Nucleare (I.N.F.N.), Milano-Bicocca 

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Bibliometric indices, last updated on 2012, Nov 8 th (*): 

Inspire Web of Science Scopus (**) 

>1989 >2003 >1989 >2003 >1996 >2003 

Peer reviewed publications 514 268 511 259 469 251 

Papers per year 22.3 22.2 25.7 

Citations >20000 >11000 11323 5224 8360 4165 

h-index 61 47 44 35 35 28 

Contemporary h-index n.a. n.a. >50 (+) 

Notes: In the second column for each database, the analysis is restricted to the last 10 years. Web 

of Science and Scopus are not as up to date as Inspire. Inspire counts citations also to the arXiv 

preprint, before the paper actually appears in press. (*) The database search is an OR of 

“Tabarelli T”, “Tabarelli de Fatis, T”, “de Fatis, T”, because of identity confusion. (**) The 

Scopus database is incomplete for publications before 1996. This explains part of the mismatch 

compared to the other two databases. The rest is due to missing papers in either one of the DB. 

Research activity 

PHYSICS AT PARTICLE COLLIDERS 

2002-present: Member of the Compact Muon Solenoid (CMS) collaboration at the LHC 

pp collider at CERN; Leader of the ECAL Detector Performance Group (DPG) in 2009- 

2010, and Project Manager of ECAL since 2011. 

Instrumental activity: Construction, commissioning and operation of the CMS ECAL, a 

high-resolution, hermetic and homogeneous PbWO 4 scintillating calorimeter [7, 8, 9]. 

• Lasting achievements in the construction phase: design, development and coordination 

of the pre-calibration strategy of the ECAL with test beam data (2002-2006) and cosmic 

rays (2004-2007), which guaranteed acceptable ECAL resolution at the startup; editor 

of the corresponding publication [8]; as ECAL calibration manager (2007-2008), 

successful coordination of the definition and implementation of the procedures for insitu 

calibration (High Level Trigger selection of π 0 /η and minimum bias calibration 

datasets, workflow for quasi-online correction of PbWO 4 transparency changes); as coleader 

of the ECAL DPG (2009), coordination of the ECAL off-line data reconstruction; 

successful definition of the framework for online and offline data-quality assurance 

and prompt-feedback to the online team; commissioning of ECAL in situ with cosmic 

rays prior to collisions; in this context proponent and author of the direct measurement 

of the muon stopping power in PbWO 4 [7]. 

• Lasting achievements during collisions: As co-leader of the ECAL DPG (2009-2010), fast 

understanding of ECAL trigger efficiency and tuning of ECAL configuration for 

optimal performance with first collisions (2009); prompt off-line mitigation of 

unexpected anomalous signals due to direct ionization of the photon-detectors 

(avalanche photo-diodes) of the ECAL barrel (2010); prompt commissioning of relative 

ECAL/Tracker alignment for electron identification and of in situ calibrations for 

optimal resolution (2010); as ECAL project manager, implementation and 

commissioning of the anomalous signal rejection at trigger level to prevent trigger 

saturation at increased luminosities (2011); commissioning and understanding of the 

correction for PbWO 4 transparency changes via the laser monitoring system (2011); 

upgrade and successful commissioning of new laser sources for transparency 

corrections of improved quality (2012); deployment of transparency corrections in the 

prompt reconstruction of CMS data (within 24 h) and periodic mitigation of the impact 

of transparency changes at the trigger level (2012). These actions have enabled ECAL 

to retain excellent performance at luminosities higher than anticipated, and have put 

CMS in the position to discover a new Higgs-like boson of 125 GeV mass [2, Invited 

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Talk at Calor 2012]. 

Physics analysis: Contributions to electron and photon reconstruction and to mitigation 

of the instrumental contribution to the Missing Transverse Energy (MET); EWK and 

Higgs physics analyses and searches for new gauge bosons; coordination of data 

analysis of the CMS ECAL group of Milano Bicocca (formally team leader since 2011). 

• Higgs physics: Coordination of the Milano Bicocca team contribution to the H → γγ 

analysis [1, 2], with direct contribution to resolution studies, diphoton vertex 

identification, and the study of the Higgs mass uncertainty (supervisor: Master Thesis, 

N. Fraschini, 2011 and B. Marzocchi, 2012); contribution to the Higgs search in the 

H→ZZ* decay mode, through the optimization of reconstruction of low p T electrons 

(supervisor: F. Ferri, Ph.D Thesis, 2007, G. Albani, Master Thesis, 2012, in collaboration 

with Ecole Polytechnique, Paris), and the study of response linearity to electrons [2, 10]; 

Higgs search in the H/A → ττ channel in the fully leptonic decay mode, with 

contribution to the e/µ cross-trigger (supervisor: F. De Guio, Master Thesis, 2008). 

• Searches: Search for a massive W’ gauge boson in the eν decay channel [4] 

(supervisor: F. Cottini, Master Thesis, 2009 an F. De Guio, Ph.D. Thesis, 2011); 

contribution to the commissioning of the MET reconstruction, through mitigation of 

the instrumental contribution to MET in searches for SUSY and Exotica signatures [3]. 

• EWK physics: Responsible for the feasibility study of the W mass measurement at 

CMS (editor of the corresponding publication and of the contribution to the CMS 

Physics TDR [10], supervisor: M. Malberti, Ph.D Thesis, 2008); contribution to W, Z 

cross-section production measurements, with data-driven methods to estimate the 

QCD residual background after electron identification [5]. 

1990-2000: Member of the DELPHI collaboration at the LEP e + e - collider at CERN. 

Instrumental activity: Development and successful implementation of the procedure for 

calibration and monitoring of the analog response of the readout chambers of the 

barrel electromagnetic calorimeter (HPC), based on the injection of radioactive gas into 

the detector. This method ensured complete control of the detector aging, linearity of 

response and optimal performance throughout the LEP program [18]. In this context, 

responsible (1992-1995) of the HPC test facility and test beams at the West Area of the 

SPS at CERN, with achievement of the full understanding the aging of the HPC 

readout chambers, and of the performance evolution of the calorimeter. 

Physics analysis: During LEP-I, contributions to electron reconstruction, calibration and 

identification and to the b-tagging through decays into electrons; contribution to 

precision EWK tests through the measurement of Z→bb width and asymmetry [11, 19] 

and of B 0 mixing; during LEP-II, measurement of W mass and couplings [17]; as 

member of the DELPHI Editorial Committee (1999-2003), internal reviewer of several 

DELPHI publications on SUSY and Higgs searches [13], and EWK precision tests. 

NEUTRINO PHYSICS 

1987-1991: Search for double-beta decay of Xe-136 with a high pressure Multi-Element 

Proportional Chamber (Tesi and INFN fellowship): thanks to novice’s ingenuity, 

identification of weak points in the gas purification system and in the HV stability; 

contribution to apparatus refurbishment; definition of the detector monitoring and 

calibration procedure; complete study of the background in the neutrino-less and twoneutrino 

decay modes, exploiting Xe samples of different isotopic compositions, for a 

final publication with best sensitivity for this isotope at that time [20]. 

2009-2010: Sole author of a seminal study of a technique for positive tag of double-beta 

decays in bolometers via Cerenkov emission from beta rays [6]. 

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1995-1999: NA56/SPY collaboration at the North area of the SPS at CERN, devoted to 

the measurement of secondary particle yields upon interaction of 450 GeV protons in 

Be targets, for an improved understanding of the spectra and composition of highenergy 

neutrino beams at accelerators: contributions to the physics plan, optimization 

of the experimental setup with peculiar modifications to the trigger; coordinator and 

major contributor to the physics analysis; co-editor of all NA52/SPY publications [16]. 

In this context, co-author of an empirical parameterization of the data, from 

elementary cross-sections to cascade processes in neutrino targets: a reference-work in 

the study of the CNGS (CERN to Gran Sasso) and NuMi (Fermilab) beam-lines [15]. 

1997-1998: Exposure of a 50 l Liquid Ar TPC to the WANF neutrino-beam at CERN, in 

the Icarus-Milano collaboration for a feasibility study of an experiment of nu-tau 

appearance in a muon-neutrino beam: responsible of the trigger setup; contribution to 

the offline data reduction filter; and main author (with A. Curioni) of the final analysis 

of quasi-elastic interactions compared to predictions of nuclear models [12]. 

1998-2001: MONOLITH project for a 35 kton magnetized-iron detector, devoted to the 

precision measurement of the parameters of atmospheric neutrino oscillations; 

coordinator of the simulation and physics analysis working group of the 

collaboration, member of the steering committee; co-editor of the MONOLITH 

proposal; invited speaker to several workshops, conferences and schools in this field. 

Despite project rejection by I.N.F.N., upon decision to focus on the CNGS neutrino 

beam program, this proposal seeded several studies still of interest: i) 

phenomenological study of the sensitivity to the subdominant component of the 

neutrino oscillation and to the neutrino mass hierarchy due to Earth-induced matter 

effects: a seminal paper in the field and still the most promising probe of the mass 

hierarchy (sole author) [14]; ii) conceptual study of the sensitivity to CP violation in 

the lepton sector with a combined measurement of oscillations with atmospheric 

neutrinos and neutrinos from beta beams (co-author with Migliozzi, Terranova et al.). 

DETECTOR R&D 

1994-1995: Aerogel Threshold Counter project of the BaBar experiment: Despite the 

project rejection by BaBar, several interesting results were achieved: proponent (with 

the Milano group) of the use of proximity focused Hybrid Photodiode Detectors 

(HPD) for Cerenkov light readout in the magnetic field and co-author of one of the 

earliest characterization of these photon-detectors; sole author of a detailed study of 

the single photo-electron response of HPDs with electrostatic focusing: a known paper 

in the field, with a numerical method based on Fast Fourier Transform later 

implemented (by A. Pickford) into the CERN computing libraries. 

2002-2005: Milano Bicocca group leader in the CaPiRe project (2002-2004) and then 

Principal Ivestigator of the R2PC project (2005), devoted to the R&D of large areas 

glass Resistive Plate Chambers (RPC) for application to digital hadron calorimetry and 

neutrino physics. Main results: demonstration of mass production capabilities based on 

the screen-printing technique for electrode deposition; detailed understanding of the 

performance degradation caused by fluoridric acid formation in streamer mode; proof 

of principle of the mechanical quenching of the streamers for operation with Freonless 

gas mixes, although at plateau efficiencies lower than in classical RPCs. This line 

of research was abandoned due to the increased involvement in CMS. 

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Selected publications 

[1] CMS Collaboration, Search for the standard model Higgs boson decaying into two 

photons in pp collisions at √s=7 TeV, Phys. Lett. B 710 (2012) 403-425, doi: 

10.1016/j.physletb.2012.03.003 

[2] CMS Collaboration, Observation of a new boson at a mass of 125 GeV with the CMS 

experiment at the LHC, Phys. Lett. B 716 (2012), 30-61, 

doi:10.1016/j.physletb.2012.08.021 

[3] CMS Collaboration, Search for Supersymmetry at the LHC in Events with Jets and 

Missing Transverse Energy, Phys. Rev. Lett. 107 (2011) 221804, doi:10.1103/PhysRe 

vLett.107.221804 

[4] CMS Collaboration, Search for a heavy gauge boson W' in the final state with an electron 

and large missing transverse energy in pp collisions at √s=7 TeV, Phys. Lett. B 698 (2011) 

21-39, doi: 10.1016/j.physletb.2011.02.048 

[5] CMS Collaboration, Measurements of inclusive W and Z cross sections in pp collisions at 

√s=7 TeV. JHEP (2011) 801007, doi: 10.1007/JHEP01(2011)080 

[6] T. Tabarelli de Fatis, Cerenkov emission as a positive tag of double beta decays in 

bolometric experiments, Eur. Phys. J. C 65 (2010) 359-361, 

doi: 10.1140/epjc/s10052-009-1207-8 

[7] CMS Collaboration, Measurement of the muon stopping power in lead tungstate, J. Inst. 

5 (2010) P03007, doi: 10.1088/1748-0221/5/03/P03007 

[8] P. Adzic et al., Intercalibration of the barrel electromagnetic calorimeter of the CMS 

experiment at start-up, J.Inst. 3 (2008) P10007, 

doi: 10.1088/1748-0221/3/10/P10007 

[9] CMS Collaboration, The CMS experiment at the CERN LHC, J.Inst. 3 (2008) S08004, 

doi: 10.1088/1748-0221/3/08/S08004 

[10] CMS Collaboration, CMS physics technical design report, volume II: Physics 

performance, J. Phys. G, 34 (2007) 995-1579, doi: 10.1088/0954-3899/34/6/S01 

[11] S. Schael et al., Precision electroweak measurements on the Z resonance, Phys. Rep. 427 

(2006) 257-454, doi: 10.1016/j.physrep.2005.12.006 

[12] F. Arneodo et al., Performance of a liquid argon time projection chamber exposed to the 

CERN West Area Neutrino Facility neutrino beam, Phys. Rev. D 74 (2006) 112001, doi: 

10.1103/PhysRevD.74.112001 

[13] D.Abbaneo et al., Search for the standard model Higgs boson at LEP, Phys.Lett. B 565 

(2003) 61-75, doi: 10.1016/S0370-2693(03)00614-2 

[14] T. Tabarelli de Fatis, Prospects of measuring sin 2 2ϑ 13 and the sign of ∆m 2 with a massive 

magnetized detector for atmospheric neutrinos, Eur. Phys. J. C 24 (2002) 43-50, doi: 

10.1007/s100520200935 

[15] M.Bonesini, A.Marchionni, F.Pietropaolo, T.Tabarelli de Fatis, On particle 

production for high energy neutrino beams, Eur. Phys. J. C 20 (2001) 13-27, doi: 

10.1007/s100520100656 

[16] G. Ambrosini et al., Measurement of charged particle production from 450 GeV/c 

protons on beryllium, Eur. Phys. J. C 10 (1999) 605-627, 

doi: 10.1007/s100520050601 

[17] DELPHI Collaboration, Measurement and interpretation of the W-pair cross-section in 

e + e - interactions at 161 GeV, Phys.Lett. B 397 (1997) 158-170, doi: 10.1016/S0370- 

2693(97)00226-8 

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[18] DELPHI Collaboration, Performance of the DELPHI detector, Nucl.Instr.Meth. A 378 

(1996), 57-100, doi: 10.1016/0168-9002(96)00463-9 

[19] DELPHI Collaboration, Measurement of Γ bb / Γ had using impact parameter measurements 

and lepton identification, Zeit. Phys. C 66 (1995) 323-339, doi: 10.1007/BF01556358 

[20] E.Bellotti, O.Cremonesi, E.Fiorini, G.Gervasio, S.Ragazzi, L.Rossi, P.P.Sverzellati, 

J.Szarka, T.Tabarelli de Fatis, L.Zanotti, A search for two neutrino and neutrinoless double 

beta-decay of Xe-136 in the Gran Sasso underground laboratory, Phys.Lett. B 266 (1991) 193- 

200, doi: 10.1016/0370-2693(91)90767-K 

Selected talks: 

•2012: Invited talk: "Role of the CMS electromagnetic calorimeter in the hunt for the Higgs 

boson in the two-gamma channel" - 15th International Conference on Calorimetry in High 

Energy Physics, Santa Fe, New Mexico, USA, 4 - 8 Jun 2012 

•2008: “Calibration of the electromagnetic calorimeter of the CMS experiment" - XIII 

International Conference on Calorimetry in High Energy Physics, Pavia (Italy) 

•2007: Rapporteur talk: “W mass and properties at the LHC”, EPS Conference on “High 

Energy Physics 2007” Manchester (UK); on behalf of ATLAS and CMS 

•2002: Invited talk: “Future projects on atmospheric neutrinos” - XXth International Conf. 

on Neutrino Physics and Astrophysics (Neutrino 2002)”, Munich, Germany 

•2001: Invited opening talk: “Atmospheric neutrinos”, Workshop on Massive Underground 

Neutrino Detectors with Leptonic Charge-Sign Discrimination, Sitges (E) 

•2001: Invited lecture: “Future experiments on Oscillations with Atmospheric Neutrinos” at 

the “LNF Spring School 99 in Nuclear and Subnuclear Physics’, Frascati (I) 

•2001: Invited seminar: "MONOLITH”, Università di Roma “La Sapienza”, June 2001 

•1998: Invited seminar: “The NA56/SPY experiment”; CERN, Ginevra (CH) 

•About 20 additional talks at various (inter)national conferences on high energy 

physics research and instrumentation are not listed 

Teaching experience: 

•2007-2011: Laboratorio di Fisica II (elettromagnetismo e Ottica), Corso di Laurea in 

Fisica, Università di Milano Bicocca; 

•2003-2008/2010-2011: Laboratorio di Fisica III (Laboratorio di misure nucleari e 

particelle), Corso di Laurea in Fisica, Universita` di Milano Bicocca, (prof. a contratto 

fino al 2005 – iniziatore del corso a Bicocca); 

•2004-2006: Laboratorio di Fisica Particelle, Corso di Laurea Magistrale in Fisica, 

Universita` di Milano Bicocca (prof. a contratto); 

•2006-2011: Fisica Medica, Corso di Laurea in Medicina, Univrsità S.Raffaele, Milano 

(prof. a contratto); 

•2002-03: Laboratorio di fisica III, Corso di Laurea in Fisica, Università dell'Insubria, 

Como (esecritazioni di laboratorio, a contratto) 

•1999-02: Esperimentazioni di fisica II, Corso di Laurea in Fisica, Università 

dell'Insubria, Como (esecritazioni di laboratorio, a contratto); 

•1996-99: Laboratorio di semicondittori, Corso di Laurea in Fisica, Università di 

Milano (prof. a contratto). 

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