Measurement Of The Inclusive And Differential Cross Sections For Semileptonic Ttbb Production With The Cms Detector At Cern And Studies Of The Readout Chip For The Phase 2 Upgrade Of The Cms Pixel Detector
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Measurement Of The Inclusive And Differential Cross Sections For Semileptonic Ttbb Production With The Cms Detector At Cern And Studies Of The Readout Chip For The Phase 2 Upgrade Of The Cms Pixel Detector
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Author : Umberto Molinatti
language : en
Publisher:
Release Date : 2023
Measurement Of The Inclusive And Differential Cross Sections For Semileptonic Ttbb Production With The Cms Detector At Cern And Studies Of The Readout Chip For The Phase 2 Upgrade Of The Cms Pixel Detector written by Umberto Molinatti and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023 with categories.
Measurement Of Double Differential Tt Production Cross Sections With The Cms Detector
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Author : Ievgen Korol
language : en
Publisher:
Release Date : 2016
Measurement Of Double Differential Tt Production Cross Sections With The Cms Detector written by Ievgen Korol and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016 with categories.
Top Pair Production Cross Sections And Differential Cross Sections In The Semi Leptonic Channel Using The Cms Detector At S
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Author : Philip Symonds
language : en
Publisher:
Release Date : 2015
Top Pair Production Cross Sections And Differential Cross Sections In The Semi Leptonic Channel Using The Cms Detector At S written by Philip Symonds and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015 with categories.
Measurement Of Double Differential Ttbar Production Cross Sections With The Cms Detector
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Author : Ievgen Korol
language : en
Publisher:
Release Date : 2016
Measurement Of Double Differential Ttbar Production Cross Sections With The Cms Detector written by Ievgen Korol and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016 with categories.
Measurement Of The Inclusive Cross Sections For Production Of W And Z Bosons Decaying To Electronic And Muonic Final States In S
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Author : Alexander Thomas Law
language : en
Publisher:
Release Date : 2016
Measurement Of The Inclusive Cross Sections For Production Of W And Z Bosons Decaying To Electronic And Muonic Final States In S written by Alexander Thomas Law and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016 with categories.
Measurements are presented of fiducial and total inclusive cross sections for W-plus, W-minus, and Z bosons, decaying to leptonic or muonic final states, in proton-proton collisions at 13 TeV center-of-mass energies, using the ATLAS Detector at CERN's Large Hadron Collider. Data used in these measurements correspond to 81 inverse picobarns of integrated luminosity, recorded during June and July 2015. Cross sections are measured in six independent analysis channels, corresponding to the electronic and muonic final states of W-plus, W-minus, and Z bosons. Electron and muon channels are combined to obtain fiducial and total cross-sections-times-leptonic-branching-ratios for each of W-plus, W-minus, and Z. Lepton universality ratios for W and Z are calculated and found to be compatible with Standard Model expectations and global averages. The ratio of W and Z fiducial cross sections is measured. The ratio of W-plus and W-minus fiducial cross sections is measured. All measurements are compared to NNLO(QCD)+NLO(EW) predictions, based on a selection of modern proton parton distribution functions.
Measurement Of The Differential And Double Differential Drell Yan Cross Sections In Proton Proton Collisions At Sqrt S
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Author :
language : en
Publisher:
Release Date : 2013
Measurement Of The Differential And Double Differential Drell Yan Cross Sections 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 2013 with categories.
Measurements of the differential and double-differential Drell-Yan cross sections are presented using an integrated luminosity of 4.5(4.8) inverse femtobarns in the dimuon (dielectron) channel of proton-proton collision data recorded with the CMS detector at the LHC at sqrt{s} = 7 TeV. The measured inclusive cross section in the Z-peak region (60-120 GeV) is \sigma(\ell \ell) = 986.4 +/- 0.6 (stat.) +/- 5.9 (exp. syst.) +/- 21.7 (th. syst.) +/- 21.7 (lum.) pb for the combination of the dimuon and dielectron channels. Differential cross sections $d\sigma/dm$ for the dimuon, dielectron, and combined channels are measured in the mass range 15 to 1500 GeV and corrected to the full phase space. Results are also presented for the measurement of the double-differential cross section d2̂\sigma/dm d.
Measurement Of The Inclusive W And Z Production Cross Sections In Pp Collisions At Sqrt S
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Author :
language : en
Publisher:
Release Date : 2011
Measurement Of The Inclusive W And Z Production Cross Sections In Pp 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.
A measurement of inclusive W and Z production cross sections in pp collisions at sqrt(s)=7 TeV is presented. The electron and muon decay channels are analyzed in a data sample collected with the CMS detector at the LHC and corresponding to an integrated luminosity of 36 inverse picobarns. The measured inclusive cross sections are sigma(pp-> WX) B(W-> l nu) = 10.30 +/- 0.02 (stat.) +/- 0.10 (syst.) +/- 0.10 (th.) +/- 0.41 (lumi.) nb and sigma(pp -> ZX) B(Z-> l+̂l-̂) = 0.974 +/- 0.007 (stat.) +/- 0.007 (syst.) +/- 0.018 (th.) +/- 0.039 (lumi.) nb, limited to the dilepton invariant mass range 60 to 120 GeV. The luminosity-independent cross section ratios are [sigma(pp->WX) B(W-> l nu)]/[sigma(pp-> ZX) B(Z->l+̂l-̂)] = 10.54 +/- 0.07 (stat.) +/- 0.08 (syst.) +/- 0.16 (th.) and [sigma(pp->W+̂X) B(W+̂ -> l+̂nu)] / [sigma(pp->W-̂ X) B(W-̂ -> l-̂ nu)] = 1.421 +/- 0.006 (stat.) +/- 0.014 (syst.) +/- 0.029 (th.). The measured values agree with next-to-next-to-leading order QCD cross section calculations based on recent parton distribution functions.
Measurement Of Differential Tt Cross Sections In The Dilepton Decay Channels With The Cms Detector At 7tev Centre Of Mass Energy
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Author : Wolf Behrenhoff
language : en
Publisher:
Release Date : 2012
Measurement Of Differential Tt Cross Sections In The Dilepton Decay Channels With The Cms Detector At 7tev Centre Of Mass Energy written by Wolf Behrenhoff and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012 with categories.
Measurement Of Differential Cross Sections For Diphoton Production In Pp Collisions With The Cms Experiment
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Author : Marco Peruzzi
language : en
Publisher:
Release Date : 2015
Measurement Of Differential Cross Sections For Diphoton Production In Pp Collisions With The Cms Experiment written by Marco Peruzzi and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015 with categories.
Measurements Of Normalized Differential Cross Sections For Tt U00af Production In Pp Collisions At S
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Author :
language : en
Publisher:
Release Date : 2014
Measurements Of Normalized Differential Cross Sections For Tt U00af Production In Pp Collisions At 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 2014 with categories.
We present measurements of normalized differential cross sections for top-quark pair production as a function of the top-quark transverse momentum, and of the mass, transverse momentum, and rapidity of the t¯t system, in proton–proton collisions at a center-of-mass energy of √ s=7 TeV. The data set corresponds to an integrated luminosity of 4.6 fb−1, recorded in 2011 with the ATLAS detector at the CERN Large Hadron Collider. Events are selected in the lepton + jets channel, requiring exactly one lepton and at least four jets with at least one of the jets tagged as originating from a b-quark. The measured spectra are corrected for detector efficiency and resolution effects and are compared to several Monte Carlo simulations and theory calculations. The results are in fair agreement with the predictions in a wide kinematic range. Nevertheless, data distributions are softer than predicted for higher values of the mass of the t¯t system and of the top-quark transverse momentum. Lastly, the measurements can also discriminate among different sets of parton distribution functions.