Measurement Of W Bb And A Search For Mssm Higgs Bosons With The Cms Detector At The Lhc
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Measurement Of W Bb And A Search For Mssm Higgs Bosons With The Cms Detector At The Lhc
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Author :
language : en
Publisher:
Release Date : 2014
Measurement Of W Bb And A Search For Mssm Higgs Bosons With The Cms Detector At The Lhc 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.
This thesis describes a Standard Model (SM) cross section measurement of W+bb as well as a search for neutral Higgs bosons in the Minimal Supersymmetric Extension of the Standard Model (MSSM) decaying to tau pairs. The measurement of W+bb was performed using proton-proton collisions at sqrt(s) = 7 TeV in a data sample collected with the CMS experiment at the LHC corresponding to an integrated luminosity of 5.0 1/fb. The W+bb events are selected in the W to muon + neutrino decay mode by requiring a muon with transverse momentum pT>25 GeV and pseudorapidity absolute eta less than 2.1, and exactly two b-tagged jets with pT>25 GeV and absolute eta less than 2.4. The measured W+bb production cross section in the fiducial region, calculated at the level of final-state particles, is 0.53± 0.05(stat.) ± 0.09 (syst.) ± 0.06 (theory) ± 0.01 (lum.) pb, in agreement with the SM prediction. This measurement is a sensitive test of heavy quark production calculated with perturbative QCD. It also serves as an important benchmark in new physics searches which include a single isolated lepton and one or more b jets in the final state, as W+bb becomes an irreducible background. Also presented is a search for the CP-even MSSM Higgs bosons, H and h, and the CP-odd MSSM pseudoscalar, A, in their decays to tau pairs. This search is performed using events recorded by the CMS experiment at the LHC in 2011 and 2012 at a center-of-mass energy of 7 TeV and 8 TeV respectively. The dataset corresponds to an integrated luminosity of 24.6 1/fb, with 4.9 1/fb at 7 TeV and 19.7 1/fb at 8 TeV. To enhance the sensitivity to neutral MSSM Higgs bosons, the search includes the case where the Higgs boson is produced in association with a b-quark jet. No excess is observed in the tau-pair invariant-mass spectrum.
Phenomena Beyond The Standard Model What Do We Expect For New Physics To Look Like
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Author : Roman Pasechnik
language : en
Publisher: Frontiers Media SA
Release Date : 2020-09-03
Phenomena Beyond The Standard Model What Do We Expect For New Physics To Look Like written by Roman Pasechnik and has been published by Frontiers Media SA this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-09-03 with Science categories.
This eBook is a collection of articles from a Frontiers Research Topic. Frontiers Research Topics are very popular trademarks of the Frontiers Journals Series: they are collections of at least ten articles, all centered on a particular subject. With their unique mix of varied contributions from Original Research to Review Articles, Frontiers Research Topics unify the most influential researchers, the latest key findings and historical advances in a hot research area! Find out more on how to host your own Frontiers Research Topic or contribute to one as an author by contacting the Frontiers Editorial Office: frontiersin.org/about/contact.
Inclusive B Jet Production In Proton Proton Collisions
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Author : Patrick L.S. Connor
language : en
Publisher: Springer Nature
Release Date : 2019-11-29
Inclusive B Jet Production In Proton Proton Collisions written by Patrick L.S. Connor and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-11-29 with Science categories.
^ 74 GeV and |y| 2.4; the b jets must contain a B hadron. The measurement has significant statistics up to p T ∼ O(TeV). Advanced methods of unfolding are performed to extract the signal. It is found that fixed-order calculations with underlying event describe the measurement well.
The 10th International Conference On Supersymmetry And Unification Of Fundamental Interactions
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Author : Pran Nath
language : en
Publisher:
Release Date : 2002
The 10th International Conference On Supersymmetry And Unification Of Fundamental Interactions written by Pran Nath and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002 with Grand unified theories (Nuclear physics) categories.
Hadron Collider Physics 2005
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Author : Mario Campanelli
language : en
Publisher: Springer Science & Business Media
Release Date : 2007-08-17
Hadron Collider Physics 2005 written by Mario Campanelli and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007-08-17 with Science categories.
This book gathers the proceedings of The Hadron Collider Physics Symposia (HCP) 2005, and reviews the state-of-the-art in the key physics directions of experimental hadron collider research. Topics include QCD physics, precision electroweak physics, c-, b-, and t-quark physics, physics beyond the Standard Model, and heavy ion physics. The present volume serves as a reference for everyone working in the field of accelerator-based high-energy physics.
Physics Of Atomic Nuclei
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Author :
language : en
Publisher:
Release Date : 1998
Physics Of Atomic Nuclei written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998 with Nuclear physics categories.
Elementary Particle Physics Present And Future Proceedings Of The International Workshop
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Author : Jose W F Valle
language : en
Publisher: World Scientific
Release Date : 1996-04-25
Elementary Particle Physics Present And Future Proceedings Of The International Workshop written by Jose W F Valle and has been published by World Scientific this book supported file pdf, txt, epub, kindle and other format this book has been release on 1996-04-25 with categories.
This workshop held in Valencia, following the earlier meetings organized at UIMP in 1991 and 1993 was open to all who wished to attend and addressed the basic issues in elementary particle physics research for the coming decade, with emphasis on the new physics topics pertaining to the electroweak sector, supersymmetry and neutrino physics, as well as the related experimentation at the new CERN accelerators LEP200 and LHC. Although it is expected that most attendees are working in the field, some time are devoted to reviews of basic results. The topics covered are the standard model, top and higgs physics, neutrino physics, astroparticle physics, physics beyond the standard model, grand unification and supersymmetry, physics at LEP200 and LHC, future perspectives.
I A Dernai A Fizika
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Author :
language : en
Publisher:
Release Date : 1998
I A Dernai A Fizika written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998 with Nuclear physics categories.
Proceedings Of The International Europhysics Conference On High Energy Physics
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Author : International Europhysics Conference on High Energy Physics 1995, Brussels, Belgium
language : en
Publisher: World Scientific
Release Date : 1996
Proceedings Of The International Europhysics Conference On High Energy Physics written by International Europhysics Conference on High Energy Physics 1995, Brussels, Belgium and has been published by World Scientific this book supported file pdf, txt, epub, kindle and other format this book has been release on 1996 with Particles (Nuclear physics) categories.
Chemical Abstracts
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Author :
language : en
Publisher:
Release Date : 2002
Chemical 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 2002 with Chemistry categories.