Search For Tev Scale Gravity Signatures In Final States With Leptons And Jets With The Atlas Detector At Square Root Of
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Search For Tev Scale Gravity Signatures In Final States With Leptons And Jets With The Atlas Detector At Square Root Of
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Author : German Colón
language : en
Publisher:
Release Date : 2013
Search For Tev Scale Gravity Signatures In Final States With Leptons And Jets With The Atlas Detector At Square Root Of written by German Colón and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013 with Black holes (Astronomy) categories.
Theories postulating extra spatial dimensions into which the gravitational field can propagate provide interesting extensions to the Standard Model addressing the hierarchy problem. These frameworks predict TeV-scale gravity signatures, such as black hole or string ball production, that could be observed at the Large Hadron Collider. Said black holes decay into a high multiplicity of particles with typical energies ranging in the few 100 GeV. The production of events with multiple high transverse momentum particles including charged leptons and jets is measured, using 13.0 fb 1 of proton-proton collision data recorded by the ATLAS detector during 2012 at s = 8 TeV. No excess beyond Standard Model expectations is observed, and upper limits on the cross sections for non-Standard Model production of these final states are set.
Search For Tev Scale Gravity Signatures In High Mass Final States With Leptons And Jets With The Atlas Detector At U221a S
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Author :
language : en
Publisher:
Release Date : 2016
Search For Tev Scale Gravity Signatures In High Mass Final States With Leptons And Jets With The Atlas Detector At U221a 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.
In this paper, a search for physics beyond the Standard Model, in final states with at least one high transverse momentum charged lepton (electron or muon) and two additional high transverse momentum leptons or jets, is performed using 3.2 fb-1 of proton–proton collision data recorded by the ATLAS detector at the Large Hadron Collider in 2015 at √s=13 TeV. The upper end of the distribution of the scalar sum of the transverse momenta of leptons and jets is sensitive to the production of high-mass objects. No excess of events beyond Standard Model predictions is observed. Finally, exclusion limits are set for models of microscopic black holes with two to six extra dimensions.
A Search For T Anti T Yields Lepton E Sub T Jets Signature In P Anti P Collisions At Radical
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Author :
language : en
Publisher:
Release Date : 2005
A Search For T Anti T Yields Lepton E Sub T Jets Signature In P Anti P Collisions At Radical written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005 with categories.
The authors report the results from a search for t[anti t] production in p[anti p] collisions at [radical]s = 1.8 TeV with the D0 detector at Fermilab in the final states consisting of one isolated high p[sub T] lepton (e or [mu]), multiple jets and a substantial missing transverse energy (E[sub T]), excluding the events that have [mu]-tagged jets. Two independent analysis approaches lead them to similar estimates for the cross-section. They see no conclusive evidence for top production in the 13.5 pb[sup [minus]1] of data taken during the 1992--1993 run of the Tevatron.
A Search For T Anti T Lepton E Sub T Jets Signature In P Anti P Collisions At S
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Author :
language : en
Publisher:
Release Date : 1994
A Search For T Anti T Lepton E Sub T Jets Signature In P Anti P Collisions At 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 1994 with categories.
The authors report the results from a search for t{anti t} production in p{anti p} collisions at √s = 1.8 TeV with the D0 detector at Fermilab in the final states consisting of one isolated high p{sub T} lepton (e or?), multiple jets and a substantial missing transverse energy (E{sub T}), excluding the events that have?-tagged jets. Two independent analysis approaches lead them to similar estimates for the cross-section. They see no conclusive evidence for top production in the 13.5 pb−1 of data taken during the 1992--1993 run of the Tevatron.
Search For Squarks And Gluinos With Two Same Sign Or Three Leptons Final States Using 13 Tev Proton Proton Collision Data With The Atlas Detector
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Author : 黃姝慧
language : en
Publisher:
Release Date : 2024
Search For Squarks And Gluinos With Two Same Sign Or Three Leptons Final States Using 13 Tev Proton Proton Collision Data With The Atlas Detector written by 黃姝慧 and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2024 with Leptons (Nuclear physics) categories.
Search For Admixture Of Scalar Top In The Tt Lepton Jets Final State At Square Root Of S
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Author : Su-Jung Park
language : en
Publisher:
Release Date : 2007
Search For Admixture Of Scalar Top In The Tt Lepton Jets Final State At Square Root Of S written by Su-Jung Park and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007 with categories.
Search For New Resonances In Lepton Antilepton Final States In Proton Proton Collisions At Square Root S
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Author : Simon Schmitz
language : en
Publisher:
Release Date : 2018
Search For New Resonances In Lepton Antilepton Final States In Proton Proton Collisions At Square Root S written by Simon Schmitz 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.
Measurement Of Spin Correlations In Tt Events From Pp Collisions At S
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Author : Boris Lemmer
language : en
Publisher:
Release Date : 2014
Measurement Of Spin Correlations In Tt Events From Pp Collisions At S written by Boris Lemmer 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.
Search For Direct Gaugino Production Decaying To Two Leptons And Missing Transverse Momentum At Atlas With Square Root S
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Author : Brokk Koen Toggerson
language : en
Publisher:
Release Date : 2012
Search For Direct Gaugino Production Decaying To Two Leptons And Missing Transverse Momentum At Atlas With Square Root S written by Brokk Koen Toggerson 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.
A search for the electroweak production of gauginos decaying into two leptons and missing transverse momentum, E [subscript T] [superscript miss], is presented using pp collisions at [square root] (s) = 7 TeV produced by the LHC and recorded by the ATLAS detector corresponding to an integrated luminosity of 4.7 fb−1. Standard Model backgrounds are estimated using a combination of semi-data-driven techniques where possible, and Monte Carlo simulation. No significant excess in data with respect to the Standard Model prediction is observed in any of the four signal regions: opposite-sign dileptons with a jet veto and E [subscript T] [superscript miss], same-sign dileptons with a jet veto and E [subscript T] [superscript miss], opposite-sign dileptons in association with jets, or a signal region requiring opposite sign dileptons and using kinematic properties of the event to remove tt̄ and WW backgrounds. In addition to model-independent limits, limits are set in both simplified models and in the context of the phenomenological Minimally Supersymmetric Standard Model. Using the simplified model paradigm, wino-based charginos, decaying through an intermediate on-shell slepton or sneutrino to a stable 10 GeV neutralino, are excluded for chargino masses between 110 and 340 GeV. For the case of associatively produced mass-degenerate charginos and neutralinos both decaying via on-shell sleptons or sneutrinos to stable 10 GeV neutralinos, the chargino and neutralino masses of 80-260 GeV are excluded.
Search For New Phenomena In Final States With An Energetic Jet And Large Missing Transverse Momentum In Pp Collisions At S
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Author :
language : en
Publisher:
Release Date : 2016
Search For New Phenomena In Final States With An Energetic Jet And Large Missing Transverse Momentum In Pp Collisions At 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 of a search for new phenomena in final states with an energetic jet and large missing transverse momentum are reported. The search uses proton-proton collision data corresponding to an integrated luminosity of 3.2 fb–1 at √s=13 TeV collected in 2015 with the ATLAS detector at the Large Hadron Collider. Events are required to have at least one jet with a transverse momentum above 250 GeV and no leptons. Several signal regions are considered with increasing missing-transverse-momentum requirements between EmissT > 250 GeV and EmissT > 700 GeV. Good agreement is observed between the number of events in data and Standard Model predictions. Here, the results are translated into exclusion limits in models with large extra spatial dimensions, pair production of weakly interacting dark-matter candidates, and the production of supersymmetric particles in several compressed scenarios.