Measurement Of The Inclusive Z Ee Production Cross Section In Proton Proton Collisions At Sqrt S
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Measurement Of The Inclusive Z Ee Production Cross Section In Proton Proton Collisions At Sqrt S
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Author : Jeremy S. Werner
language : en
Publisher:
Release Date : 2011
Measurement Of The Inclusive Z Ee Production Cross Section In Proton Proton Collisions At Sqrt S written by Jeremy S. Werner and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011 with categories.
Measurement Of The Inclusive Z To Ee Production Cross Section In Proton Proton Collisions At Sqrt S
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Author :
language : en
Publisher:
Release Date : 2011
Measurement Of The Inclusive Z To Ee Production Cross Section In Proton Proton Collisions At Sqrt S written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011 with categories.
This thesis comprises a precision measurement of the inclusive \Zee production cross section in proton-proton collisions provided by the Large Hadron Collider (LHC) at a center-of-mass energy of $\sqrt{s}=7$~TeV and the absolute luminosity based on \Zee decays. The data was collected by the Compact Muon Solenoid (CMS) detector near Geneva, Switzerland during the year of 2010 and corresponds to an integrated luminosity of $\int\mathcal{L}dt = 35.9\pm 1.4$~pb$^{-1}$. Electronic decays of $Z$ bosons allow one of the first electroweak measurements at the LHC, making the cross section measurement a benchmark of physics performance after the first year of CMS detector and LHC machine operations. It is the first systematic uncertainty limited \Zee cross section measurement performed at $\sqrt{s}=7$~TeV. The measured cross section pertaining to the invariant mass window $M_{ee}\in (60,120)$~GeV is reported as: $\sigma(pp\to Z+X) \times \mathcal{B}(Z\to ee) = 997 \pm 11 \mathrm{(sta t)} \pm 19 \mathrm{(syst)} \pm 40 \mathrm{(lumi)} \textrm{ pb}$, which agrees with the theoretical prediction calculated to NNLO in QCD. Leveraging \Zee decays as ``standard candles'' for measuring the absolute luminosity at the LHC is examined; they are produced copiously, are well understood, and have clean detector signatures. Thus the consistency of the inclusive \Zee production cross section measurement with the theoretical prediction motivates inverting the measurement to instead use the \Zee signal yield to measure the luminosity. The result, which agrees with the primary relative CMS luminosity measurement calibrated using Van der Meer separation scans, is not only the most precise absolute luminosity measurement performed to date at a hadron collider, but also the first one based on a physics signal at the LHC.
Measurement Of The W And Z Boson Production Cross Sections In P P Collisions At Square Root Sign S
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Author : Peter Matthew Grudberg
language : en
Publisher:
Release Date : 1997
Measurement Of The W And Z Boson Production Cross Sections In P P Collisions At Square Root Sign S written by Peter Matthew Grudberg and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997 with categories.
Energy Research Abstracts
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Author :
language : en
Publisher:
Release Date : 1994-06
Energy Research Abstracts written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1994-06 with Power resources categories.
Measurement Of Tt Production Cross Section In Pp Collisions At Square Root S
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Author : Harpreet Singh
language : en
Publisher:
Release Date : 1999
Measurement Of Tt Production Cross Section In Pp Collisions At Square Root S written by Harpreet Singh and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999 with Collisions (Nuclear physics) categories.
A Measurement Of The Inclusive Drell Yan E E Cross Section In The Invariant Mass Range Of 3 60 Gev C2 From Pp U02c9 Collisions At Square Root S
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Author : James Walter Thomas McKinley
language : en
Publisher:
Release Date : 1996
A Measurement Of The Inclusive Drell Yan E E Cross Section In The Invariant Mass Range Of 3 60 Gev C2 From Pp U02c9 Collisions At Square Root S written by James Walter Thomas McKinley and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1996 with Hadron interactions categories.
Measurement Of The Z Tau Tau Production Cross Section In Proton Proton Collisions At Square Root Of S
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Author : Justin Griffiths
language : en
Publisher:
Release Date : 2012
Measurement Of The Z Tau Tau Production Cross Section In Proton Proton Collisions At Square Root Of S written by Justin Griffiths and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012 with Large Hadron Collider (France and Switzerland) categories.
The first measurement of the inclusive cross-section of the Z boson decaying to two tau leptons was measured with the ATLAS detector at the LHC. The data sample in this analysis represents an integrated luminosity of 35 pb ̄1 of proton-proton collisions at a center of mass energy of sqrt(s)=7 TeV. Separate measurements were performed in four decay modes based on how the two tau leptons decay: to hadrons and an electron, to hadrons and a muon, to an electron and a muon, and to two muons. In all four final states, inclusive cross-section measurements were made both in the fiducial region of the ATLAS detector where acceptance is high and in the full phase space, restricted to the mass range of [66, 116] GeV. The measurements from the four individual channels were then combined to yield the combined Z --> [tau] [tau] cross-section of 970 ± 70 (stat.) ± 60 (sys.) ± 30 (lumi.) pb.
Physics Briefs
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Author :
language : en
Publisher:
Release Date : 1989
Physics Briefs written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1989 with Physics categories.
Government Reports Annual Index
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Author :
language : en
Publisher:
Release Date : 1991
Government Reports Annual Index written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1991 with Government publications categories.
Energy Research Abstracts
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Author :
language : en
Publisher:
Release Date : 1983
Energy Research Abstracts written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1983 with Power resources categories.
Includes all works deriving from DOE, other related government-sponsored information and foreign nonnuclear information.