A Search For Anomalous Production Of Events With Multiple Leptons And A W Or Z Boson
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A Search For Anomalous Production Of Events With Multiple Leptons And A W Or Z Boson
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Author :
language : en
Publisher:
Release Date : 2011
A Search For Anomalous Production Of Events With Multiple Leptons And A W Or Z Boson 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 paper presents a search for anomalous production of multiple low-energy leptons in association with a $W$ or $Z$ boson using events collected at the CDF experiment corresponding to $5.1$ fb${̂-1}$ of integrated luminosity. This search is sensitive to a wide range of topologies with low-momentum leptons, including those with the leptons near one another. The observed rates of production of additional electrons and muons are compared with the standard model predictions. No indications of phenomena beyond the standard model are found. A 95\% confidence level limit is presented on the production cross section for a benchmark model of supersymmetric hidden-valley Higgs production. Particle identification efficiencies are also provided to enable the calculation of limits on additional models.
A Search For Anomalous Production Of Events With Multiple Leptons And A W Or Z Boson
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Author : Scott Wilbur
language : en
Publisher:
Release Date : 2011
A Search For Anomalous Production Of Events With Multiple Leptons And A W Or Z Boson written by Scott Wilbur 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 search is presented for anomalous production of events containing multiple low-energy leptons produced in association with a W or Z boson using the Collider Detector at Fermilab. The leptons are not required to be isolated, and the signature is therefore sensitive to a wide range of so-called "lepton jet" topologies. The search uses data corresponding to 5.1 fb--1 of integrated luminosity from pp ̄ collisions at a center-of-mass energy of s = 1.96 TeV. The observed events are compared with the standard model predictions in bins of additional electron and muon multiplicity. No indications are found of phenomena beyond the standard model. A 95% confidence level limit is presented on the production cross section for an example benchmark point of a dark-matter inspired model of supersymmetric hidden valley Higgs production. Object identification efficiencies are also provided in order to enable the calculation of limits on additional models.
The Physics Associated With Neutrino Masses
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Author : Diego Aristizabal Sierra
language : en
Publisher: Frontiers Media SA
Release Date : 2020-01-13
The Physics Associated With Neutrino Masses written by Diego Aristizabal Sierra 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 2020-01-13 with 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.
Proceedings Of The 29th International Conference On High Energy Physics Ichep 98 In 2 Volumes
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Author : Alan Astbury
language : en
Publisher: World Scientific
Release Date : 1999-06-11
Proceedings Of The 29th International Conference On High Energy Physics Ichep 98 In 2 Volumes written by Alan Astbury and has been published by World Scientific this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999-06-11 with Science categories.
These proceedings consist of plenary rapporteur talks covering topics of major interest to the high energy physics community and parallel sessions papers which describe recent research results and future plans.
Search For Anomalous Production Of Multiple Leptons In Association With W And Z Bosons At Cdf
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Author :
language : en
Publisher:
Release Date : 2012
Search For Anomalous Production Of Multiple Leptons In Association With W And Z Bosons At Cdf written by 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.
This paper presents a search for anomalous production of multiple low-energy leptons in association with a W or Z boson using events collected at the CDF experiment corresponding to 5.1 fb−1 of integrated luminosity. This search is sensitive to a wide range of topologies with low-momentum leptons, including those with the leptons near one another. The observed rates of production of additional electrons and muons are compared with the standard model predictions. No indications of phenomena beyond the standard model are found. A 95% confidence level limit is presented on the production cross section for a benchmark model of supersymmetric hidden-valley Higgs production. Particle identification efficiencies are also provided to enable the calculation of limits on additional models.
Electroweak Physics At The Large Hadron Collider With The Atlas Detector
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Author : Elodie Resseguie
language : en
Publisher: Springer Nature
Release Date : 2020-11-03
Electroweak Physics At The Large Hadron Collider With The Atlas Detector written by Elodie Resseguie and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-11-03 with Science categories.
This thesis discusses searches for electroweakly produced supersymmetric partners of the gauge and the Higgs bosons (gauginos and higgsinos) decaying to multiple leptons, using pp collisions at sqrt(s) = 13 TeV. The thesis presents an in-depth study of multiple searches, as well as the first 13 TeV cross section measurement for the dominant background in these searches, WZ production. Two searches were performed using 36.1/fb of data: the gaugino search, which makes use of a novel kinematic variable, and the higgsino search, which produced the first higgsino limits at the LHC. A search using 139/fb of data makes use of a new technique developed in this thesis to cross check an excess of data above the background expectation in a search using a Recursive Jigsaw Reconstruction technique. None of the searches showed a significant excess of data, and limits were expanded with respect to previous results. These searches will benefit from the addition of luminosity during HL-LHC; however, the current detector will not be able to withstand the increase in radiation. Electronics for the detector upgrade are tested and irradiated to ensure their performance.
New Directions For High Energy Physics
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Author :
language : en
Publisher:
Release Date : 1997
New Directions For High Energy Physics written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997 with Colliders (Nuclear physics) categories.
Multiparticle Dynamics Proceedings Of The Xxiii International Symposium
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Author : M M Block
language : en
Publisher: World Scientific
Release Date : 1994-04-26
Multiparticle Dynamics Proceedings Of The Xxiii International Symposium written by M M Block and has been published by World Scientific this book supported file pdf, txt, epub, kindle and other format this book has been release on 1994-04-26 with categories.
This international meeting on ultrahigh energy multiparticle phenomena started with a summary of neutrino physics, followed by a detailed review of LEP results. It moved on to the fast-breaking field of rapidity gaps, hard pomeron and small-x structure functions at both Hera and the FermiLab Tevatron. The major collider experiments at FermiLab, and in particular, the results of the top quark search were presented in complete detail. The fields of intermittency, multiplicities, correlation functions, heavy quarks, soft and semihard hadronic physics, and the particle physics aspects of cosmic rays were subjects of spirited debate.
Nuclear Physics
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Author :
language : en
Publisher:
Release Date : 1998
Nuclear Physics 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.
Hadron Collider Physics Proceedings Of The Xi Symposium
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Author : D Bisello
language : en
Publisher: World Scientific
Release Date : 1997-06-01
Hadron Collider Physics Proceedings Of The Xi Symposium written by D Bisello and has been published by World Scientific this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997-06-01 with categories.
The proceedings of this series of annual symposia represent an extensive summary of the experimental and theoretical status of high energy physics at hadron colliders. This volume discusses the latest results on top and beauty physics, QCD, electroweak physics and searches for new particles. The prospects of this field for LHC, Tevatron and Hera machines are also reported.