[PDF] Search For New Physics In Events With High Jet Multiplicity And Low Missing Transverse Momentum In Proton Proton Collisions At Sqrt S - eBooks Review

Search For New Physics In Events With High Jet Multiplicity And Low Missing Transverse Momentum In Proton Proton Collisions At Sqrt S


Search For New Physics In Events With High Jet Multiplicity And Low Missing Transverse Momentum In Proton Proton Collisions At Sqrt S
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Search For New Physics In Events With High Jet Multiplicity And Low Missing Transverse Momentum In Proton Proton Collisions At Sqrt S


Search For New Physics In Events With High Jet Multiplicity And Low Missing Transverse Momentum In Proton Proton Collisions At Sqrt S
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Author :
language : en
Publisher:
Release Date : 2016

Search For New Physics In Events With High Jet Multiplicity And Low Missing Transverse Momentum 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 dedicated search is presented for new phenomena in inclusive eight- and ten-jet final states with low missing transverse momentum, with and without identification of jets originating from b quarks. The analysis is based on data from proton-proton collisions corresponding to an integrated luminosity of 19.6 inverse femtobarns collected with the CMS detector at the LHC at sqrt(s) = 8 TeV. The dominant multijet background expectations are obtained from low jet multiplicity control samples. Data agree well with the standard model background predictions, and limits are set in several benchmark models. Colorons (axigluons) with masses between 0.6 and 0.75 (up to 1.15) TeV are excluded at 95% confidence level. Similar exclusion limits for gluinos in R-parity violating supersymmetric scenarios are from 0.6 up to 1.1TeV. These results comprise the first experimental probe of the coloron and axigluon models in multijet final states.



Government Reports Announcements Index


Government Reports Announcements Index
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Author :
language : en
Publisher:
Release Date : 1986

Government Reports Announcements Index written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1986 with Science categories.




Physics Briefs


Physics Briefs
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Author :
language : en
Publisher:
Release Date : 1980

Physics Briefs written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1980 with Physics categories.




Government Reports Annual Index


Government Reports Annual Index
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Author :
language : en
Publisher:
Release Date : 1986

Government Reports Annual Index written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1986 with Research categories.


Sections 1-2. Keyword Index.--Section 3. Personal author index.--Section 4. Corporate author index.-- Section 5. Contract/grant number index, NTIS order/report number index 1-E.--Section 6. NTIS order/report number index F-Z.



Search For New Physics In The Multijet And Missing Transverse Momentum Final State In Proton Proton Collisions At Sqrt S


Search For New Physics In The Multijet And Missing Transverse Momentum Final State In Proton Proton Collisions At Sqrt S
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Author :
language : en
Publisher:
Release Date : 2014

Search For New Physics In The Multijet And Missing Transverse Momentum Final State 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 2014 with categories.


A search for new physics is performed in multijet events with large missing transverse momentum produced in proton-proton collisions at $\sqrt{s}$ = 8 TeV using a data sample corresponding to an integrated luminosity of 19.5 fb−1collected with the CMS detector at the LHC. The data sample is divided into three jet multiplicity categories (3-5, 6-7, and ≥8 jets), and studied further in bins of two variables: the scalar sum of jet transverse momenta and the missing transverse momentum. The observed numbers of events in various categories are consistent with backgrounds expected from standard model processes. Exclusion limits are presented for several simplified supersymmetric models of squark or gluino pair production.



Search For Supersymmetry In Events With Soft Leptons Low Jet Multiplicity And Missing Transverse Energy In Proton U2013 Proton Collisions At Sqrt S


Search For Supersymmetry In Events With Soft Leptons Low Jet Multiplicity And Missing Transverse Energy In Proton U2013 Proton Collisions At Sqrt S
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Author :
language : en
Publisher:
Release Date : 2016

Search For Supersymmetry In Events With Soft Leptons Low Jet Multiplicity And Missing Transverse Energy In Proton U2013 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.


Results are presented from a search for supersymmetric particles in scenarios with a compressed mass spectrum. The data sample corresponds to 19.7 inverse femtobarns of proton-proton collisions recorded by the CMS experiment at √s = 8 TeV. The search targets top squark ($ ilde{t}$ pair production in scenarios with mass differences ?m = m($ ilde{t}$ – m($ ilde{i}$10) below the W-boson mass and with top-squark decays in the four-body mode ($ ilde{t}$ → blv$ ilde{i}$10), where the ($ ilde{i}$10) is assumed to be the lightest supersymmetric particle (LSP). The signature includes a high transverse momentum (pT) jet associated with initial-state radiation, one or two low-pT leptons, and significant missing transverse energy. The event yields observed in data are consistent with the expected background contributions from standard model processes. Limits are set on the cross section for top squark pair production as a function of the $ ilde{t}$ and LSP masses. Assuming a 100% branching fraction for the four-body decay mode, top-squark masses below 316 GeV are excluded for ?m = 25 GeV at 95% CL. Furthermore, the dilepton data are also interpreted under the assumption of chargino-neutralino production, with subsequent decays to sleptons or sneutrinos. Assuming a difference between the common $ ilde{i}$1+/$ ilde{i}$2+ mass and the LSP mass of 20 GeV and a ?-enriched decay scenario, masses in the range m( $ ilde{i}$1+)



Search For Supersymmetry In The Multijet And Missing Transverse Momentum Final State In Pp Collisions At 13 Tev


Search For Supersymmetry In The Multijet And Missing Transverse Momentum Final State In Pp Collisions At 13 Tev
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Author :
language : en
Publisher:
Release Date : 2016

Search For Supersymmetry In The Multijet And Missing Transverse Momentum Final State In Pp Collisions At 13 Tev 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 new physics is performed based on all-hadronic events with large missing transverse momentum produced in proton-proton collisions at sqrt(s)=13 TeV. The data sample, corresponding to an integrated luminosity of 2.3 inverse femtobarns, was collected with the CMS detector at the CERN LHC in 2015. The data are examined in search regions of jet multiplicity, tagged bottom quark jet multiplicity, missing transverse momentum, and the scalar sum of jet transverse momenta. The observed numbers of events in all search regions are found to be consistent with the expectations from standard model processes. Exclusion limits are presented for simplified supersymmetric models of gluino pair production. Depending on the assumed gluino decay mechanism, and for a massless, weakly interacting, lightest neutralino, lower limits on the gluino mass from 1440 to 1600 GeV are obtained, significantly extending previous limits.



Search For New Phenomena In Final States With Large Jet Multiplicities And Missing Transverse Momentum With Atlas Using


Search For New Phenomena In Final States With Large Jet Multiplicities And Missing Transverse Momentum With Atlas Using
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Author :
language : en
Publisher:
Release Date : 2016

Search For New Phenomena In Final States With Large Jet Multiplicities And Missing Transverse Momentum With Atlas Using 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.


Results are reported of a search for new phenomena, such as supersymmetric particle production, that could be observed in high-energy proton–proton collisions. Events with large numbers of jets, together with missing transverse momentum from unobserved particles, are selected. The data analysed were recorded by the ATLAS experiment during 2015 using the 13 TeV centre-of-mass proton–proton collisions at the Large Hadron Collider, and correspond to an integrated luminosity of 3.2 fb-1. The search selected events with various jet multiplicities from ≥7 to ≥10 jets, and with various b-jet multiplicity requirements to enhance sensitivity. Furthermore, no excess above Standard Model expectations is observed. The results are interpreted within two supersymmetry models, where gluino masses up to 1400 GeV are excluded at 95% confidence level, significantly extending previous limits.



Search For New Phenomena In Final States With Large Jet Multiplicities And Missing Transverse Momentum With Atlas Using Mml


Search For New Phenomena In Final States With Large Jet Multiplicities And Missing Transverse Momentum With Atlas Using Mml
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Author :
language : en
Publisher:
Release Date : 2016

Search For New Phenomena In Final States With Large Jet Multiplicities And Missing Transverse Momentum With Atlas Using Mml 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.


Results are reported of a search for new phenomena, such as supersymmetric particle production, that could be observed in high-energy proton-proton collisions. Events with large numbers of jets, together with missing transverse momentum from unobserved particles, are selected. The data analysed were recorded by the ATLAS experiment during 2015 using the 13 TeV centre-of-mass proton-proton collisions at the Large Hadron Collider, and correspond to an integrated luminosity of 3.2 fb-1. The search selected events with various jet multiplicities from ≥7 to ≥10 jets, and with various b-jet multiplicity requirements to enhance sensitivity. No excess above Standard Model expectations is observed. The results are interpreted within two supersymmetry models, where gluino masses up to 1400 GeV are excluded at 95% confidence level, significantly extending previous limits.



Search For New Phenomena In Events With One Energetic Jet And Large Missing Transverse Momentum In Proton Proton Collisions At S


Search For New Phenomena In Events With One Energetic Jet And Large Missing Transverse Momentum In Proton Proton Collisions At S
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Author : Valerio Rossetti
language : en
Publisher:
Release Date : 2013

Search For New Phenomena In Events With One Energetic Jet And Large Missing Transverse Momentum In Proton Proton Collisions At S written by Valerio Rossetti 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.