CERN-THESIS-2012-153 26/07/2012 - CERN Document Server

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Scale Factors Variable Cut pT >25 GeV Track Isolation, ∆R < 0.3 6 Number of b-layer hits >0 |d0|
ε (P ) µ TL T 1 TL µ ε TL µ ε 0.9 0.8 0.7 0.6 0.5 0.4 × 10 0 10 20 30 40 50 60 70 80 90 100 PT [MeV] ε ( η ) µ TL 1 0.9 0.8 0.7 0.6 0.5 0.4 2 1.5 1 0.5 0 0.5 1 1.5 2 η 3 ε (N ) µ TL (vertex) 1 TL µ ε ε ( φ ) µ TL 1 TL µ ε 0.9 0.8 0.7 0.6 0.5 0.4 0 5 10 15 20 25 0.9 0.8 0.7 0.6 0.5 Data s = 7 TeV 1 TOP_GRL_G5: 697.871 pb Simulation N(vertex) 0.4 3 2 1 0 1 2 3 φ [Rad] Figure 5.5: TL efficiency measured from Z → µµ events in data (black) and MC (red). 58
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CERN-THESIS-2012-153 26/07/2012 c
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Abstract A search for flavor-changi
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Acknowledgments I first want to tha
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Table of Contents List of Tables .
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List of Tables 2.1 The fundamental
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List of Figures 2.1 The potential V
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5.15 Distributions of the 3ID analy
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This thesis is organized as follows
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the question whether each neutrino
Page 19 and 20: gauge invariant field strength tens
Page 21 and 22: for strong interactions. Although W
Page 23 and 24: particles. Because of the introduct
Page 25 and 26: which is introduced for mass genera
Page 27 and 28: 2.3 Top Quark The large mass of the
Page 29 and 30: ATLAS Preliminary Data 2011 Channel
Page 31 and 32: as the masses of the quarks involve
Page 33 and 34: LEP HERA Tevatron LHC BR(t → qγ)
Page 35 and 36: to Wtb couplings, where limits on a
Page 37 and 38: tion at the collision point, and F
Page 39 and 40: The positive x-direction is defined
Page 41 and 42: large air-core toroids (one barrel
Page 43 and 44: 3.3.3 Calorimetry The calorimetry i
Page 45 and 46: of ∼ 1% for the H → γγ and H
Page 47 and 48: esolution of 1 cm×1 ns with digita
Page 49 and 50: Luminosity measurement Accurate det
Page 51 and 52: least one hit on the A-side, at lea
Page 53 and 54: caps. The calorimeter selections ar
Page 55 and 56: ut instead fragment to color neutra
Page 57 and 58: Decays A large fraction of the part
Page 59 and 60: The ALGPEN program with HERWIG show
Page 61 and 62: Normalized to unit / 1.96429 GeV No
Page 63 and 64: Chapter 5 Event Selection 5.1 Intro
Page 65 and 66: Variable Cut pT >20 GeV Type MuID t
Page 67 and 68: Identification efficiency eff id 1
Page 69: (a) (b) Figure 5.4: Electron identi
Page 73 and 74: Jets in this analysis are reconstru
Page 75 and 76: impact parameter significance of we
Page 77 and 78: event is also discarded. Events wit
Page 79 and 80: event kinematics, however no b-jet
Page 81 and 82: Events / 10 GeV trackleptons / 10
Page 83 and 84: analysis, is 22%. Figure 5.13(a) sh
Page 85 and 86: transverse momentum of the leading
Page 87 and 88: Events / 10 GeV Events / 10 GeV 14
Page 89 and 90: two background sources, diboson and
Page 91 and 92: ID leptons provides three different
Page 93 and 94: 3ID Final Selection ZZ and WZ 9.5
Page 95 and 96: data, has systematic uncertainties
Page 97 and 98: Jets The jet energy scale (JES) and
Page 99 and 100: the fake prediction was scaled down
Page 101 and 102: two or more, and events with E miss
Page 103 and 104: Source MC Background Luminosity ±
Page 105 and 106: Chapter 8 Limit Evaluation 8.1 Intr
Page 107 and 108: means: Q = L( X,s + b) L( , (8.5)
Page 109 and 110: computed from Equation 8.12 replaci
Page 111 and 112: Chapter 9 Conclusions A search for
Page 113 and 114: There are a total of 666236 γ+jets
Page 115 and 116: Appendix B Backgrounds to the 3ID a
Page 117 and 118: Appendix C Systematic Uncertainties
Page 119 and 120: References [1] J. L. Borges, Tres v
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[40] G. Lu, F. Yin, X. Wang and L.
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[82] ATLAS Collaboration, Expected
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