Search For Supersymmetry In Events With A Single Lepton Jets And Missing Transverse Momentum Using A Neural Network
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Search For Supersymmetry In Events With A Single Lepton Jets And Missing Transverse Momentum Using A Neural Network
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Author : Avishek Chatterjee
language : en
Publisher:
Release Date : 2013
Search For Supersymmetry In Events With A Single Lepton Jets And Missing Transverse Momentum Using A Neural Network written by Avishek Chatterjee 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.
A search for supersymmetry in proton-proton collisions at [SQUARE ROOT] s = 7 TeV is presented, focusing on events with a single isolated lepton, energetic jets, and large missing transverse momentum. The analyzed data corresponds to a total integrated luminosity of 4.98 fb[-]1 recorded by the CMS experiment. The search uses an artificial neural network to suppress Standard Model backgrounds, and estimates residual backgrounds using a fully data-driven method. The analysis is performed in both the muon and electron channels, and the combined result is interpreted in terms of limits on the CMSSM parameter space, as well as a simplified model.
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.
Novel Ideas For Accelerators Particle Detection And Data Challenges At Future Colliders
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Author : Alessandro Tricoli
language : en
Publisher: Frontiers Media SA
Release Date : 2023-07-21
Novel Ideas For Accelerators Particle Detection And Data Challenges At Future Colliders written by Alessandro Tricoli 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 2023-07-21 with Science 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.
Dissertation Abstracts International
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Author :
language : en
Publisher:
Release Date : 2007
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 2007 with Dissertations, Academic categories.
Search For Supersymmetry In Events With One Lepton And Multiple Jets In Proton Proton Collisions At Sqrt S
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Author :
language : en
Publisher:
Release Date : 2016
Search For Supersymmetry In Events With One Lepton And Multiple Jets 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 2016 with categories.
A search for supersymmetry is performed in events with a single electron or muon in proton-proton collisions at a center-of-mass energy of 13 TeV. The data were recorded by the CMS experiment at the LHC and correspond to an integrated luminosity of 2.3 inverse femtobarns. Several exclusive search regions are defined based on the number of jets and b-tagged jets, the scalar sum of the jet transverse momenta, and the scalar sum of the missing transverse momentum and the transverse momentum of the lepton. The observed event yields in data are consistent with the expected backgrounds from standard model processes. The results are interpreted using two simplified models of supersymmetric particle spectra, both of which describe gluino pair production. In the first model, each gluino decays via a three-body process to top quarks and a neutralino, which is associated with the observed missing transverse momentum in the event. Gluinos with masses up to 1.6 TeV are excluded for neutralino masses below 600 GeV. In the second model, each gluino decays via a three-body process to two light quarks and a chargino, which subsequently decays to a W boson and a neutralino. The mass of the chargino is taken to be midway between the gluino and neutralino masses. In this model, gluinos with masses below 1.4 TeV are excluded for neutralino masses below 700 GeV.
Search For Supersymmetry In Proton Proton Collisions At 7 Tev In Events With A Single Lepton B Tagged Jets And Missing Transverse Momentum At The Lhc Using Data Collected From The Cms Detector
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Author : Wing Howard To
language : en
Publisher:
Release Date : 2013
Search For Supersymmetry In Proton Proton Collisions At 7 Tev In Events With A Single Lepton B Tagged Jets And Missing Transverse Momentum At The Lhc Using Data Collected From The Cms Detector written by Wing Howard To 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.
This thesis describes a search for supersymmetry (SUSY) at the Large Hadron Collider using data collected in Run 2011 at center of mass energy of 7 TeV by the Compact Muon Solenoid detector with an integrated luminosity of 4.98 $fb{-1}$. First, the Large Hadron Collider is briefly described along with the Compact Muon Solenoid detector. Second, the Standard Model of particle physics is described which leads to the motivations for supersymmetry and its description. Finally, a search for supersymmetry in events with a single lepton, 2 b-tagged jets and missing transverse energy is documented in detail. The results are used to predict the yields from the standard model in bins missing transverse energy (\met) and total transverse hadronic energy (HT). Limits are set using these results using a minimal supergravity SUSY model and simplified model spectra SUSY model.
Search For Supersymmetry Using Final States With One Lepton Jets And Missing Transverse Momentum With The Atlas Detector In Sqrt S
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Author :
language : en
Publisher:
Release Date : 2013
Search For Supersymmetry Using Final States With One Lepton Jets And Missing Transverse Momentum With The Atlas Detector In 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.
A Search For Supersymmetry In Events With Jets And Missing Momentum Using Data Collected By The Cms Detector At 13 Tev
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Author : Sam Daniel Mullin
language : en
Publisher:
Release Date : 2016
A Search For Supersymmetry In Events With Jets And Missing Momentum Using Data Collected By The Cms Detector At 13 Tev written by Sam Daniel Mullin 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.
As successful as the Standard Model of particle physics has been it still has several major shortcomings which range from unanswered theoretical questions to a lack of any explanation for observed phenomena such as dark matter. One proposed theory for physics beyond the Standard Model which provides solutions for some of these issues is supersymmetry. This dissertation presents a search for supersymmetry using 2.3 fb -1 of proton-proton collision data. This data was collected at a center-of-mass energy of 13 TeV by the CMS detector at the LHC during 2015. This search focuses on top squark pair production where the produced stops both decay to an all hadronic final state. These decays are characterized by multiple jets and missing transverse momentum. A baseline search region is defined to be sensitive to signal processes which occur at rates many orders of magnitude lower than Standard Model processes. The sensitivity to various signal models is improved by dividing this baseline region into distinct categories. Events with an unreconstructed lepton from leptonic W boson decays constitute the primary background. There are also significant contributions from events where a Z boson decays invisibly to neutrinos especially in bins with higher missing transverse momentum. Events with multijet production where one jet has been severely mis-measured as well as those with a pair of top quarks and an invisibly decaying Z boson also have a small presence in the search region. The contributions from these processes to the search region is estimated using data control regions. No statistically significant deviations from the predicted background yields are observed. The results are interpreted in terms of exclusion limits using the Simplified Model Spectrum framework. Stop and neutralino masses are probed up to 780 GeV and 260 GeV respectively.
Search For Supersymmetry In Events With An Isolated Lepton At Least 2 9 Jets And Missing Transverse Momentum With The Atlas Detector
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Author : Nikolai Hartmann
language : en
Publisher:
Release Date : 2018
Search For Supersymmetry In Events With An Isolated Lepton At Least 2 9 Jets And Missing Transverse Momentum With The Atlas Detector written by Nikolai Hartmann 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.