2009 QCD and High Energy Interactions - Rencontres de Moriond ...

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1. LHC <strong>and</strong> LHC <strong>de</strong>tector commissioning
Page 1 and 2: 2009 QCD and High Energy Interactio
Page 3 and 4: Proceedings of the XLIVth RENCONTRE
Page 5 and 6: 2009 RENCONTRES DE MORIOND The XLIV
Page 7 and 8: Foreword Contents 1. LHC and LHC de
Page 9: 11. Heavy Ions The RHIC beam energy
Page 14 and 15: Figure 1: Left: SPD resolution afte
Page 16 and 17: Figure 3: Left: An event display in
Page 18 and 19: point. The recorded data allow for
Page 20 and 21: tracking accuracy. In September and
Page 22 and 23: 2 Data collected during 2008 A tota
Page 24 and 25: Figure 4: (a) Linear correlation be
Page 26 and 27: and contributing to the Level-0 tri
Page 28 and 29: the distribution of the difference
Page 31 and 32: LHC: Status and Commissioning Plans
Page 33 and 34: The necessary detection threshold h
Page 35 and 36: progress will be essential if the p
Page 37: 2. Higgs
Page 40 and 41: Events -1 CDF Run II Preliminary, L
Page 42 and 43: 2.4 Inclusive H → ττ and H →
Page 44 and 45: SM Higgs decay depends on its mass
Page 46 and 47: Figure 1: Observed and expected (me
Page 48 and 49: tanβ 140 120 100 80 60 40 20 Exclu
Page 50 and 51: ) (pb) - W + W → Br(H × WH) →
Page 52 and 53: Figure 1: Dominant Standard Model H
Page 54 and 55: discovery tan β for 5σ σ 60 50 4
Page 56 and 57: 3 The subjet analysis procedure As
Page 58 and 59: 6 Conclusion Significance 7 6 5 4 3
Page 60 and 61:
detectorsmustbeinstalledafewmm’sa
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ForHiggsmassesclosetotheLEPlimit,MH
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12. M.G.AlbrowandA.Rostovtsev,arXiv
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Table 1: LEP and Tevatron analyses
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hole, the processes with the highes
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ased on keeping only the leading co
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σ(y ) [fb] c 450 400 350 300 250 2
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these two representative scenarios
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Figure 1: Transverse mass distribut
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KLOE RESULTS ON LIGHT MESON PROPERT
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φ → a0(980)γ → ηπ 0 γ. Two
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Recent J/ψ results from BESII Fang
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FIG. 4: (a) The π 0 Λ invariant m
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[19] S. S. Fang et al., High Energy
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THE STATUS OF FLAVOUR PHYSICS: AN I
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3 Flavour Physics beyond 2009 An op
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Figure 4: Left: prediction of diffe
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MEASUREMENTS OF THE MASSES, LIFETIM
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have missing particles which result
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Measurements of Rare B Decays at Te
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of the SM. For instance, in the typ
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BARYONIC B MESON DECAYS AT BELLE AN
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two-body decay ¯p → Σ0 c ¯ N0
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CHARMLESS HADRONIC B DECAYS AT BELL
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that are present in B 0 → π + π
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Heavy Charmonium Mini-Review E.S. S
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2 4 ) (GeV /c ) + K φ ( 2 m 5 4.5
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CHARMONIUM[-LIKE] STATES AT BELLE A
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ψπ−K 0,+ (ψ = J/ψ or ψ(2S))
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Bottomonium Results from BABAR and
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3 Energy Scans above Υ(4S) Recentl
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Evidence for a Near-Threshold Struc
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2 Candidates/2 MeV/c CDF II Prelimi
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RECENT B-PHYSICS RESULTS FROM LATTI
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Figure 1 shows the above result com
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BOTTOMONIUM AND CHARMONIUM RESULTS
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modes in which there are > 5σ sign
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THE MASS OF η b A. PENIN a,b a Dep
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E hfs (MeV) 50 45 40 35 30 25 20 15
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SEMILEPTONIC AND LEPTONIC CHARM DEC
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Figure 1: CLEO-c data for f+(q 2 )
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Recent Results on ψ(3770) Physics
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Table 2: The fitted results, where
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Υ(5S) AND Bs DECAYS AT BELLE A. DR
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) 2 Events / ( 0.01 GeV/c 14 12 10
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HEAVY FLAVOURS AT ZEUS AND H1 S.K.
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dσ/dQ 2 (nb/GeV 2 ) (a) 10 1 10 -1
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HEAVY FLAVOUR PHYSICS AT CMS AND AT
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3.2 B + → J/ψK + production The
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5. New Phenomena
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Ωh 2 10 1 10 0 10 −1 10 −2 10
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ON GAUGE MEDIATION AND COSMOLOGICAL
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Functions f4 and f6, defined in eq.
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3. L. O’Raifeartaigh, “Spontane
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Figure 1: CDF dielectron invariant
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Figure 3: X → ZZ analysis: (top)
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primarily pythia 7 and MadEvent 8 .
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Vista Final States -1 CDF Run II Pr
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-1 events/ 100 GeV / 1fb 2 10 ATLAS
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) to observe 3 events -1 (pb int L
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eferred to in this report as the
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Muons / (0.008 cm) 6 10 5 10 4 10 3
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Events 6 10 5 10 4 10 3 10 2 10 10
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ments are enforced (i.e. events are
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y Eq. (2). Using this method, the t
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Top quark pair production cross sec
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) ν τ b → + b H → Br(t 1 0.8
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MEASUREMENT OF THE TOP QUARK AND W
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JES -1 DØ Run IIb Preliminary, L=2
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Events/0.5 GeV 10000 χ 7500 5000 2
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SINGLE TOP PRODUCTION IN THE Wt MOD
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subtraction term is defined as foll
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DISCOVERY OF SINGLE TOP QUARK PRODU
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5 Signal-Background Separation Afte
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MEASUREMENTS OF TOP QUARK PROPERTIE
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correction for acceptance and recon
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The Global Electroweak Fit of the S
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Table 1: Measurement prospects at f
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Top Physics at ATLAS and CMS France
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Events/10GeV 160 140 120 100 80 60
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Entries 180 160 140 120 100 80 60 4
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Phenomenological studies of top-pai
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dσ fb dpT,jet GeV 10 1 0.1 0.01 0
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SEARCHES FOR NEW PHYSICS IN TOP EVE
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Using a measurement of the helicity
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7. QCD
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dy (pb/GeV) T /dp 2 d 7 10 |y|
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1/ dijet d dijet / d dijet 10 5 10
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[pb/GeV/c] T dp d d /d /d 10 -2 1
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) (pb/GeV) jet dy dy T (dp 3 d
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ATLAS calorimeter is shown as a fun
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Figure 4: Left: dijet azimuthal dec
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First we generate an ensemble of ar
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3 Comments There are currently diff
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Figure 1: Inclusive direct photon c
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Figure 5: Away-side charged hadron
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σσΘ γ
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s α 0.3 0.2 0.1 αs from Jet Cross
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[fb/(GeV/c)] jet T dσ/dp Data / Th
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Figure 3: The p b−jet T spectrum
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Furthermore, the photon ET spectrum
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] -1 [GeV T dN/dE 2.0 1.5 1.0 0.5 D
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Table 1: Electron identification ef
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3 Early physics studies using Z and
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dσ / dE T [ pb / GeV ] 10 0 10 -1
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dσ / dH T [ pb / GeV ] 10 -1 10 -2
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where the amplitude Mn is independe
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Figure 3: The four new integrals fo
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In the region where qT ∼ mV , mV
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3 Fully exclusive NNLO Drell-Yan ca
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Number of Charged Particles Density
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3 Summary and Conclusions We are ma
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ackground, with an average of 18 mi
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3 Underlying Event The Underlying E
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RECENT QUARKONIA RESULTS FROM THE P
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2.2 J/ψ photo-production in ultra-
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Study of QGP with probes associated
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2 Low pT direct photon 2.1 Measurem
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αS(M Z 0) FROM JADE EVENT SHAPES S
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Only restricted regions of the dist
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8. Structure Functions, Spin and Di
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×ÒÖØÐÝ×Ò×ØÚØÓØÐÙÓ
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ÑÒÖÝÓÖ ÌÜØÖØÓÒÓÄÛ×
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2 High Q 2 Cross Sections and Elect
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established and is presented in Fig
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dN K /dN DIS Q 2 GeV 2 0.15 0.1 0.
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2cos( ) h UU 2cos( ) h UU 0.2 0
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STAR has previously reported on pre
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ackground can be reduced by cuts on
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virtual quark, antiquark pairs orig
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Figure 4: (left)η ALL(PT) at sqrts
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production within the diffractive s
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volumes from the beam assigns geome
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to an agreement between theory and
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The RW value is consistent with the
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3 l *x IP σ r D(3) 10 4 10 3 10 2
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[nb] Y γ → p γ σ 5 4 3 2 H1 Di
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N EVT 10 5 10 4 10 3 10 2 10 Data M
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Events 700 600 500 400 300 200 100
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LATTICE GAUGE THEORY FOR PHYSICS BE
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g 2 L 25 20 15 10 5 2-loop univ. 3-
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LIGHT HADRON SPECTRUM FROM LATTICE
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are difficult. They need CPU-intens
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CURRENT STATUS TOWARD THE PROTON MA
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our results for ¯ l3, which is def
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Hadronic cross section measurements
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is used to estimate the latter. 8 T
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10. Forward Physics
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Figure 1: Right: Roman Pots locatio
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Diffraction events for masses below
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p A p B q A q B forward jet X s 1 s
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5. M. Grothe, arXiv:0901.0998 [hep-
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) 1.5 eV -1 sr -1 sec -2 J(E) (m 2.
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well in between the predictions for
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conservation is not considered for
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GeV) max h max. hadron energy lg(E
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THE RHIC BEAM ENERGY SCAN - STAR’
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time, Tpass > τ0. Tpass can be est
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Recent Results from STAR: Correlati
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Figure 2: Jet yield per event in Au
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Centrality Dependence of ∆η −
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In central Au+Au collisions, partic
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DISSIPATION, COLLECTIVE FLOW AND MA
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R AA 1 0.8 0.6 0.4 0.2 BAMPS Wicks
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The QCD equation of state from impr
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16 14 12 10 8 6 4 0.4 0.6 0.8 1 1.2
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COLD NUCLEAR MATTER EFFECTS ON J/ψ
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proper weighting of each kinematica
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Q-PYTHIA — A MONTE CARLO IMPLEMEN
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Figure 1: The three contributions t
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a π ± Ξ ∓ CORRELATIONS AND THE
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|Ψ( k,r)| 2 = |Y00| 2 + 4 √ |Y
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SYNCHROTRON-LIKE GLUON EMISSION IN
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Here it is assumed that τ has a sm
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The Chiral Magnetic Effect: Measuri
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Figure 1: The Chiral Magnetic effec
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DATA PRESERVATION AND LONG TERM ANA
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Figure 2: An example of a data anal
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12. Closing
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) -1 (ps Γ ∆ 0.6 0.4 0.2 0.0 -0.
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All these observations look very in
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σ r (x,Q 2 ) x 2 i 10 7 10 6 10 5
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is observed in the case of b jets,
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Events/0.5 GeV 10000 χ 7500 5000 2
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Anoveldeterminationofthedistributio
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presentedbytheSTARcollaboration. 47
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processes. Onthecontrary,thesupersy
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preciseknowledgeofthebackgroundshap
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15. J.Nachtman,Evidenceforanear-thr
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MORIOND 2009, QCD AND HIGH ENERGY I
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Ratio to MCFM NLO 2.0 1.5 1.0 * Dat
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dσ / dE T [ pb / GeV ] 10 -1 10 -2
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esults. There are two fits each, on
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Figure 7: Left: the fourth-order co
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11. J. Charles et al. (CKMfitter),
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XLIVth Rencontres de Moriond QCD an
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