Search For New Physics In Events With Same Sign Dileptons And Jets In Pp Collisions At Sqrt S
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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.
Search For New Physics In Events With Same Sign Dileptons And Jets In Pp Collisions At Sqrt S
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Author :
language : en
Publisher:
Release Date : 2014
Search For New Physics In Events With Same Sign Dileptons And Jets 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 2014 with categories.
A search for new physics is performed based on events with jets and a pair of isolated, same-sign leptons. The results are obtained using a sample of proton-proton collision data collected by the CMS experiment at a centre-of-mass energy of 8 TeV at the LHC, corresponding to an integrated luminosity of 19.5 inverse femtobarns. In order to be sensitive to a wide variety of possible signals beyond the standard model, multiple search regions defined by the missing transverse energy, the hadronic energy, the number of jets and b-quark jets, and the transverse momenta of the leptons in the events are considered. No excess above the standard model background expectation is observed and constraints are set on a number of models for new physics, as well as on the same-sign top-quark pair and quadruple-top-quark production cross sections. As a result, information on event selection efficiencies is also provided, so that the results can be used to confront an even broader class of new physics models.
Search For New Physics In Events With Same Sign Dileptons And B Jets In Pp Collisions At Sqrt S
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Author :
language : en
Publisher:
Release Date : 2012
Search For New Physics In Events With Same Sign Dileptons And B Jets 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 2012 with categories.
Search For New Physics In A Final State With Same Sign Dileptons Jets And Missing Transverse Energy At 7 Tev Center Of Mass Energy
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Author : Frank Golf
language : en
Publisher:
Release Date : 2012
Search For New Physics In A Final State With Same Sign Dileptons Jets And Missing Transverse Energy At 7 Tev Center Of Mass Energy written by Frank Golf 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.
We report on a search for new physics in a final state with two same sign leptons, missing transverse energy, and significant hadronic activity at a center of mass energy sqrt(s) = 7 TeV. The data were collected with the CMS detector at the CERN LHC and correspond to an integrated luminosity of 0.98 inverse femtobarns. Data-driven methods are developed to estimate the dominant Standard Model backgrounds. No evidence for new physics is observed. The dominant background to the analysis comes from failures of lepton identification in Standard Model ttbar events. The ttbar production cross section in the dilepton final state is measured using 3.1 inverse picobarns of data. The cross section is measured to be 194 ± 72 (stat) ± 24 (syst) ± 21 (lumi) pb. An algorithm is developed that uses tracking information to improve the reconstruction of missing transverse energy. The reconstruction of missing transverse energy is commissioned using the first collisions recorded at 0.9, 2.36 and 7 TeV data. Events with abnormally large values of missing transverse energy are identified as arising from anomalous signals in the calorimeters. Tools are developed to identify and remove these anomalous signals.
Search For New Physics With The Mt2 Variable In All Jets Final States Produced In Pp Collisions At S
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Author : Mario Masciovecchio
language : en
Publisher:
Release Date : 2016
Search For New Physics With The Mt2 Variable In All Jets Final States Produced In Pp Collisions At S written by Mario Masciovecchio 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.
Correlations Between Jets And Charged Particles In Pbpb And Pp Collisions At Sqrt S Mathrm Nn
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Author :
language : en
Publisher:
Release Date : 2016
Correlations Between Jets And Charged Particles In Pbpb And Pp Collisions At Sqrt S Mathrm Nn 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.
In this study, the quark-gluon plasma is studied via medium-induced changes to correlations between jets and charged particles in PbPb collisions compared to pp reference data. This analysis uses data sets from PbPb and pp collisions with integrated luminosities of 166 inverse microbarns and 5.3 inverse picobarns, respectively, collected at $ \sqrt{s_{\mathrm{NN}}}=2.76 $ TeV. The angular distributions of charged particles are studied as a function of relative pseudorapidity ([Delta][eta]) and relative azimuthal angle ([Delta][Phi]) with respect to reconstructed jet directions. Charged particles are correlated with all jets with transverse momentum (pT) above 120 GeV, and with the leading and subleading jets (the highest and second-highest in pT, respectively) in a selection of back-to-back dijet events. Modifications in PbPb data relative to pp reference data are characterized as a function of PbPb collision centrality and charged particle pT. A centrality-dependent excess of low-pT particles is present for all jets studied, and is most pronounced in the most central events. This excess of low-pT particles follows a Gaussian-like distribution around the jet axis, and extends to large relative angles of [Delta][eta] ≈ 1 and [Delta][Phi] ≈ 1.
Properties Of Jets In High Et Events Produced In Pp Collisions At Square Root S
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Author :
language : en
Publisher:
Release Date : 1983
Properties Of Jets In High Et Events Produced In Pp Collisions At Square Root 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 1983 with categories.
Measurement Of Jet Activity In Top Quark Events Using The E Mu Final State With Two B Tagged Jets In Pp Collisions At Sqrt S
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Author :
language : en
Publisher:
Release Date : 2016
Measurement Of Jet Activity In Top Quark Events Using The E Mu Final State With Two B Tagged Jets 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.
Search For New Physics Using Events With Two Photons And Large Missing Transverse Energy In Pp Collisions At S
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Author : Yueh-Feng Liu
language : en
Publisher:
Release Date : 2013
Search For New Physics Using Events With Two Photons And Large Missing Transverse Energy In Pp Collisions At S written by Yueh-Feng Liu 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.
Properties Of Jets In High E Vt Events Produced In Pp Collisions At Sqrt S
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Author : T. Åkesson
language : en
Publisher:
Release Date : 1984
Properties Of Jets In High E Vt Events Produced In Pp Collisions At Sqrt S written by T. Åkesson and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1984 with categories.