Search For New Phenomena In Final States With Large Jet Multiplicities And Missing Transverse Momentum With Atlas Using Mml
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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 Tt Events With Large Missing Transverse Momentum
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Author :
language : en
Publisher:
Release Date : 2014
Search For New Phenomena In Tt Events With Large Missing Transverse Momentum 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.
The ATLAS Run I data as provided by CERN's LHC has been systematically searched for the presence of supersymmetric partners of the top quark (stops) using the identification of charm-flavored jets and boosted top tagging. No signs of stop could be established yet.
Search For New Physics In Mono Jet Final States In Pp Collisions
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Author : Giuliano Gustavino
language : en
Publisher: Springer
Release Date : 2017-06-19
Search For New Physics In Mono Jet Final States In Pp Collisions written by Giuliano Gustavino and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-06-19 with Science categories.
This thesis provides a detailed and comprehensive description of the search for New Physics at the Large Hadron Collider (LHC) in the mono-jet final state, using the first 3.2 fb-1 of data collected at the centre of mass energy of colliding protons of 13~TeV recorded in the ATLAS experiment at LHC. The results are interpreted as limits in different theoretical contexts such as compressed supersymmetric models, theories that foresee extra-spatial dimensions and in the dark matter scenario. In the latter the limits are then compared with those obtained by other ATLAS analyses and by experiments based on completely different experimental techniques, highlighting the role of the mono-jet results in the context of dark matter searches.Lastly, a set of possible analysis improvements are proposed to reduce the main uncertainties that affect the signal region and to increase the discovery potential by further exploiting the information on the final state.
Search For Exotic Mono Jet Events
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Author : Valerio Rossetti
language : en
Publisher: Springer
Release Date : 2015-08-24
Search For Exotic Mono Jet Events written by Valerio Rossetti and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-08-24 with Science categories.
This thesis describes in detail the search for new phenomena in mono-jet final states with the ATLAS experiment at the LHC. The final state is considered the golden channel in the searches for large extra dimensions (LED) but also allows access to a very rich SUSY-related phenomenology pertaining to the production of weakly interacting massive particles (WIMPS), SUSY Dark Matter candidates, GMSB SUSY models with very light gravitino masses, as well as stop an sbottom pair production in compressed scenarios (with nearly degenerated squarks and the lightest neutralino), and also invisible Higgs searches, among others. Here, a number of these scenarios are explored. The measurements presented yield new powerful constraints on the existence of extra spatial dimensions, the pair production of WIMPs, and also provide the best limit to date on the gravitino mass.
Search For New Phenomena In A Mono Jet Plus Missing Transverse Energy Final State With The Atlas Detector At The Lhc
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Author : Sahill Poddar
language : en
Publisher:
Release Date : 2013
Search For New Phenomena In A Mono Jet Plus Missing Transverse Energy Final State With The Atlas Detector At The Lhc written by Sahill Poddar 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.
Search For New Phenomena In Events With A Photon And Missing Transverse Momentum In Math Display
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Author :
language : en
Publisher:
Release Date : 2015
Search For New Phenomena In Events With A Photon And Missing Transverse Momentum In Math Display written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015 with categories.
Results of a search for new phenomena in events with an energetic photon and large missing transverse momentum with the ATLAS experiment at the LHC are reported. Data were collected in proton-proton collisions at a center-of-mass energy of 8 TeV and correspond to an integrated luminosity of 20.3 fb-1. The observed data are well described by the expected Standard Model backgrounds. The expected (observed) upper limit on the fiducial cross section for the production of events with a photon and large missing transverse momentum is 6.1 (5.3) fb at 95% confidence level. The exclusion limits are presented on models of new phenomena with large extra spatial dimensions, supersymmetric quarks, and direct pair production of dark-matter candidates.
Search For New Phenomena In Jets Plus Missing Transverse Energy Final States At The Lhc
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Author : Roger Caminal Armadans
language : en
Publisher:
Release Date : 2015
Search For New Phenomena In Jets Plus Missing Transverse Energy Final States At The Lhc written by Roger Caminal Armadans and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015 with categories.
Search For New Physics In Pp Collisions In Final States With Tau Leptons B Jets And Missing Transverse Momentum With The Atlas Detector In Lhc Run 2
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Author : Ferdinand Krieter
language : en
Publisher:
Release Date : 2021
Search For New Physics In Pp Collisions In Final States With Tau Leptons B Jets And Missing Transverse Momentum With The Atlas Detector In Lhc Run 2 written by Ferdinand Krieter and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021 with Jets categories.
A Search For New Physics In Final States With Two Opposite Signsame Flavor Leptons Jets And Missing Transverse Energy Inproton Proton Collisions With A Center Of Mass Energy Of 13 Tev
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Author : Charles Vincent Welke
language : en
Publisher:
Release Date : 2016
A Search For New Physics In Final States With Two Opposite Signsame Flavor Leptons Jets And Missing Transverse Energy Inproton Proton Collisions With A Center Of Mass Energy Of 13 Tev written by Charles Vincent Welke 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 is performed in final states with Z$\rightarrow\ell\ell$, jets, and missing transverse momentum using data collected with the CMS detector at the CERN LHC in 2015 corresponding to an integrated luminosity of 2.3~\fbinv of pp collisions at $\sqrt{s}=13$\TeV. Signal regions are defined to maximize sensitivity to new physics including one to search where ATLAS reported a 3.0~$\sigma$ excess at 8~TeV. The observations in all regions are consistent with the predicted standard model backgrounds, and the results are interpreted in the context of simplified models of supersymmetry.
Search For Squarks And Gluinos In Final States With Jets And Missing Transverse Momentum With The Atlas Detector At Lhc
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Author : Valerio Consorti
language : de
Publisher:
Release Date : 2014
Search For Squarks And Gluinos In Final States With Jets And Missing Transverse Momentum With The Atlas Detector At Lhc written by Valerio Consorti 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.