Measurement Of Ttbar Cross Sections In The Muon Jets Final State In Pp Collisions At 13 Tev
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Measurement Of Ttbar Cross Sections In The Muon Jets Final State In Pp Collisions At 13 Tev
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Author : Andre Schmalfeld
language : en
Publisher:
Release Date : 2016
Measurement Of Ttbar Cross Sections In The Muon Jets Final State In Pp Collisions At 13 Tev written by Andre Schmalfeld 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.
Lepton Photon Interactions At High Energies Lepton Photon 2017 Proceedings Of The 28th International Symposium
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Author : Wei Wang
language : en
Publisher: World Scientific
Release Date : 2020-02-27
Lepton Photon Interactions At High Energies Lepton Photon 2017 Proceedings Of The 28th International Symposium written by Wei Wang and has been published by World Scientific this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-02-27 with Science categories.
The latest of the 'Lepton Photon' symposium, one of the well-established series of meetings in the high-energy physics community, was successfully organized at the South Campus of Sun Yat-sen University, Guangzhou, China, from August 7-12, 2017, where physicists around the world gathered to discuss the latest advancements in the research field.This proceedings volume of the Lepton Photon 2017 collects contributions by the plenary session speakers and the posters' presenters, which cover the latest results in particle physics, nuclear physics, astrophysics, cosmology, and plans for future facilities.
Advances In Artificial Intelligence And Machine Learning
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Author : Gaurav Raj
language : en
Publisher: Springer Nature
Release Date : 2025-03-16
Advances In Artificial Intelligence And Machine Learning written by Gaurav Raj and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2025-03-16 with Computers categories.
This book presents a collection of peer-reviewed articles from the International Conference on Advances and Applications of Artificial Intelligence and Machine Learning—ICAAAIML 2023. The book covers research in the areas of artificial intelligence, machine learning, and deep learning applications in health care, agriculture, business, and security. This book contains research papers from academicians, researchers as well as students. There are also papers on core concepts of computer networks, intelligent system design and deployment, real-time systems, wireless sensor networks, sensors and sensor nodes, software engineering, and image processing. This book is a valuable resource for students, academics, and practitioners in the industry working on AI applications.
Measurement Of The Ttbar Production Cross Section In The All Jets Final State In Pp Collisions At Sqrt S
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Author :
language : en
Publisher:
Release Date : 2015
Measurement Of The Ttbar Production Cross Section In The All Jets Final State 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 2015 with categories.
The cross section for tt production in the all-jets final state is measured in pp collisions at a centre-of-mass energy of 8 TeV at the LHC with the CMS detector, in data corresponding to an integrated luminosity of 18.4 fb-1. The inclusive cross section is found to be 275.6 ±6.1 (stat) ± 37.8 (syst) ± 7.2 (lumi) pb. The normalized differential cross sections are measured as a function of the top quark transverse momenta, pT, and compared to predictions from quantum chromodynamics. The results are reported at detector, parton, and particle levels. In all cases, the measured top quark pT spectra are significantly softer than theoretical predictions.
Measurements Of The T Tbar Production Cross Section In Lepton Jets Final States In Pp Collisions At 8 Tev And Ratio Of 8 To 7 Tev Cross Sections
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Author :
language : en
Publisher:
Release Date : 2016
Measurements Of The T Tbar Production Cross Section In Lepton Jets Final States In Pp Collisions At 8 Tev And Ratio Of 8 To 7 Tev Cross Sections written by 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.
A measurement of the top quark pair production (t-tbar) cross section in proton-proton collisions at the centre-of-mass energy of 8 TeV is presented using data collected with the CMS detector at the LHC, corresponding to an integrated luminosity of 19.6 inverse-femtobarns. This analysis is performed in the t-tbar decay channels with one isolated, high transverse momentum electron or muon and at least four jets, at least one of which is required to be identified as originating from hadronization of a b quark. The calibration of the jet energy scale and the efficiency of b jet identification are determined from data. The measured t-tbar cross section is 228.5 +/- 3.8 (stat) +/- 13.7 (syst) +/- 6.0 (lumi) pb. This measurement is compared with an analysis of 7 TeV data, corresponding to an integrated luminosity of 5.0 inverse-femtobarns, to determine the ratio of 8 TeV to 7 TeV cross sections, which is found to be 1.43 +/- 0.04 (stat) +/- 0.07 (syst) +/- 0.05 (lumi). The measurements are in agreement with QCD predictions up to next-to-next-to-leading order.
Measurement Of Differential Cross Sections For Top Quark Pair Production Using The Lepton Jets Final State In Proton Proton Collisions At 13 Tev
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Author :
language : en
Publisher:
Release Date : 2016
Measurement Of Differential Cross Sections For Top Quark Pair Production Using The Lepton Jets Final State In Proton Proton Collisions At 13 Tev written by 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.
Differential and double-differential cross sections for the production of top quark pairs in proton-proton collisions at 13 TeV are measured as a function of jet multiplicity and of kinematic variables of the top quarks and the top quark-antiquark system. This analysis is based on data collected by the CMS experiment at the LHC corresponding to an integrated luminosity of 2.3 inverse femtobarns. The measurements are performed in the lepton+jets decay channels with a single muon or electron in the final state. The differential cross sections are presented at particle level, within a phase space close to the experimental acceptance, and at parton level in the full phase space. The results are compared to several standard model predictions.
Measurement Of The T T Bar Production Cross Section In Pp Collisions At 7 Tev In Lepton Jets Events Using B Quark Jet Identification
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Author :
language : en
Publisher:
Release Date : 2011
Measurement Of The T T Bar Production Cross Section In Pp Collisions At 7 Tev In Lepton Jets Events Using B Quark Jet Identification 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 new measurement of the inclusive production cross section for pp to t t-bar is performed at a center-of-mass energy of 7 TeV using data collected by the CMS experiment at the LHC. The analysis uses a data sample corresponding to an integrated luminosity of 36 inverse picobarns, and is based on the final state with one isolated, high transverse momentum muon or electron, missing transverse energy, and hadronic jets. The ttbar content of the selected events is enhanced by requiring the presence of at least one jet consistent with b-quark hadronization. The measured cross section is 150 +/- 9 (stat.) +/- 17 syst.) +/- 6 (lumi.) pb and is in agreement with higher-order QCD calculations. The combination of this measurement with a previous CMS result based on dileptons gives 154 +/- 17 (stat.+syst.) +/- 6 (lumi.) pb.
Measurement Of The Mathrm T Bar T Production Cross Section Using Events In The Mathrm E Mu Final State In Pp Collisions At Sqrt S
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Author :
language : en
Publisher:
Release Date : 2016
Measurement Of The Mathrm T Bar T Production Cross Section Using Events In The Mathrm E Mu Final State 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 2016 with categories.
The cross section of top quark-antiquark pair production in proton-proton collisions at $\sqrt{s}$ = 13 TeV is measured by the CMS experiment at the LHC, using data corresponding to an integrated luminosity of 2.2 inverse femtobarns. The measurement is performed by analyzing events in which the final state includes one electron, one muon, and two or more jets, at least one of which is identified as originating from hadronization of a b quark. The measured cross section is 792 +/- 8 (stat) +/- 37 (syst) +/- 21 (lumi) pb, in agreement with the expectation from the standard model.
Measurement Of The Tt Bb Production Cross Section In The All Jet Final State In Pp Collisions At S
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Author : Albert M. Sirunyan
language : en
Publisher:
Release Date : 2019
Measurement Of The Tt Bb Production Cross Section In The All Jet Final State In Pp Collisions At S written by Albert M. Sirunyan and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019 with categories.
Measurement Of The T Bar T Production Cross Section Using Events With One Lepton And At Least One Jet In Pp Collisions At Sqrt S
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Author :
language : en
Publisher:
Release Date : 2017
Measurement Of The T Bar T Production Cross Section Using Events With One Lepton And At Least One Jet 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 2017 with categories.
A measurement of the $\mathrm{ t \bar{t} }$ production cross section at $\sqrt{s}=$ 13 TeV is presented using proton-proton collisions, corresponding to an integrated luminosity of 2.3 fb$^{-1}$, collected with the CMS detector at the LHC. Final states with one isolated charged lepton (electron or muon) and at least one jet are selected and categorized according to the accompanying jet multiplicity. From a likelihood fit to the invariant mass distribution of the isolated lepton and a jet identified as coming from the hadronization of a bottom quark, the cross section is measured to be $\sigma(\mathrm{ t \bar{t} })=$ 835 $\pm$ 3 (stat) $\pm$ 23 (syst) $\pm$ 23 (lumi) pb, in agreement with the standard model prediction. Using the expected dependence of the cross section on the pole mass of the top quark ($m_{\mathrm{ t }}$), the value of $m_{\mathrm{ t }}$ is found to be 172.7$^{+2.4}_{-2.7}$ GeV.