Measurement Of The Inclusive And Fiducial Tt Production Cross Sections In The Lepton Jets Channel In Pp Collisions At S

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Spin Correlations In Tt Events From Pp Collisions

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Author : Boris Lemmer
language : en
Publisher: Springer
Release Date : 2015-06-24

Spin Correlations In Tt Events From Pp Collisions written by Boris Lemmer and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-06-24 with Science categories.

This thesis introduces readers to the Standard Model, the top quark and its properties, before explaining the concept of spin correlation measurement. The first measurement of top quark spin correlations at the LHC in the lepton+jets decay channel is presented. As the heaviest elementary particle, the top quark plays an essential role in the Standard Model of elementary particle physics. In the case of top quarks being produced in pairs at hadron colliders, the Standard Model predicts their spins to be correlated. The degree of correlation depends on both the production mechanism and properties of the top quark. Any deviation from the Standard Model prediction can be an indicator for new physics phenomena. The thesis employs an advanced top quark reconstruction algorithm including dedicated identification of the up- and down-type quarks from the W boson decay.

Proceedings Of The Xxiv Dae Brns High Energy Physics Symposium Jatni India

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Author : Bedangadas Mohanty
language : en
Publisher: Springer Nature
Release Date : 2022-10-05

Proceedings Of The Xxiv Dae Brns High Energy Physics Symposium Jatni India written by Bedangadas Mohanty and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-10-05 with Science categories.

This book presents proceedings from the XXIV DAE-BRNS High Energy Physics (HEP) Symposium 2020, held at the National Institute of Science Education and Research, Jatni, Odisha, India. The contributions cover a variety of topics in particle physics, astroparticle physics, cosmology and related areas from both experimental and theoretical perspectives, namely (1) Standard Model Physics, (2) Beyond Standard Model Physics, (3) Relativistic Heavy-Ion Physics & QCD, (4) Neutrino Physics, (5) Particle Astrophysics & Cosmology, (6) Detector Development Future Facilities and Experiments, (7) Formal Theory, (8) Societal Applications: Medical Physics, Imaging, etc.

Dissertation Abstracts International

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Author :
language : en
Publisher:
Release Date : 2008

Dissertation Abstracts International written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008 with Dissertations, Academic categories.

Measurement Of The Inclusive And Fiducial Tt Production Cross Sections In The Lepton Jets Channel In Pp Collisions At S

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Author : Arwa Bannoura
language : en
Publisher:
Release Date : 2018

Measurement Of The Inclusive And Fiducial Tt Production Cross Sections In The Lepton Jets Channel In Pp Collisions At S written by Arwa Bannoura and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018 with categories.

Measurement Of The Inclusive And Fiducial Tt Production Cross Sections In The Lepton Jets Channel In Pp Collisions At S

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Author : Arwa Bannoura
language : en
Publisher:
Release Date : 2019

Measurement Of The Inclusive And Fiducial Tt Production Cross Sections In The Lepton Jets Channel In Pp Collisions At S written by Arwa Bannoura 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 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.

Measurement Of The Top Pair Production Cross Section In 8 Tev Proton Proton Collisions Using Kinematic Information In The Lepton Jets Final State With Atlas

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Author :
language : en
Publisher:
Release Date : 2015

Measurement Of The Top Pair Production Cross Section In 8 Tev Proton Proton Collisions Using Kinematic Information In The Lepton Jets Final State With Atlas 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.

Measurement Of The Top Pair Production Cross Section In The Lepton Jets Channel Using A Jet Flavor Discriminant

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Author :
language : en
Publisher:
Release Date : 2011

Measurement Of The Top Pair Production Cross Section In The Lepton Jets Channel Using A Jet Flavor Discriminant 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.

We present a new method to measure the top quark pair production cross section and the background rates with data corresponding to an integrated luminosity of 2.7 fb−1 from p{bar p} collisions at √s = 1.96 TeV collected with the CDF II Detector. We select events with a single electron or muon candidate, missing transverse energy, and at least one b-tagged jet. We perform a simultaneous fit to a jet flavor discriminant across nine samples defined by the number of jets and b-tags. An advantage of this approach is that many systematic uncertainties are measured in situ and inversely scale with integrated luminosity. We measure a top cross section of [sigma]{sub t{bar t}} = 7.64 ± 0.57 (stat + syst) ± 0.45 (luminosity) pb.

Measurement Of The Top Pair Production Cross Section In 8 Tev Proton Proton Collisions Using Kinematic Information In The Lepton Plus Jets Final State With Atlas

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Author :
language : en
Publisher:
Release Date : 2015

Measurement Of The Top Pair Production Cross Section In 8 Tev Proton Proton Collisions Using Kinematic Information In The Lepton Plus Jets Final State With Atlas 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.

Measurement Of The Tt Production Cross Section In Pp Collisions At Square Root S

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Author : Heather L. Ray
language : en
Publisher:
Release Date : 2004

Measurement Of The Tt Production Cross Section In Pp Collisions At Square Root S written by Heather L. Ray and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004 with categories.