Atlas Search For A Heavy Gauge Boson Decaying To A Charged Lepton And A Neutrino In Pp Collisions At Arrow
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Release | : 2012 |
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Download ATLAS Search for a Heavy Gauge Boson Decaying to a Charged Lepton and a Neutrino in Pp Collisions at [arrow]" Book in PDF, Epub and Kindle
The ATLAS detector at the LHC is used to search for high-mass states, such as heavy charged gauge bosons (W'), decaying to a charged lepton (electron or muon) and a neutrino. Results are presented based on the analysis of pp collisions at a centre-of-mass energy of 7 TeV corresponding to an integrated luminosity of 4.7 fb-1. No excess beyond Standard Model expectations is observed. A W' with Sequential Standard Model couplings is excluded at the 95% credibility level for masses up to 2.55 TeV. Excited chiral bosons (W*) with equivalent coupling strength are excluded for masses up to 2.42 TeV.
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Total Pages | : 28 |
Release | : 2011 |
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Download Search for a Heavy Gauge Boson Decaying to a Charged Lepton and a Neutrino in 1 Fb-1 of Pp Collisions at [mml Book in PDF, Epub and Kindle
The ATLAS detector at the LHC is used to search for heavy charged gauge bosons (W'), decaying to a charged lepton (electron or muon) and a neutrino. Results are presented based on the analysis of pp collisions at a center-of-mass energy of 7 TeV corresponding to an integrated luminosity of 1.04 fb−1. No excess beyond Standard Model expectations is observed. A W' with Sequential Standard Model couplings is excluded at the 95% confidence level for masses up to 2.15 TeV.
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Total Pages | : 19 |
Release | : 2011 |
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Download Search for a Heavy Gauge Boson Decaying to a Charged Lepton and a Neutrino in 1 Fb-1 of pp Collisions at {u221A}s Book in PDF, Epub and Kindle
The ATLAS detector at the LHC is used to search for heavy charged gauge bosons (W'), decaying to a charged lepton (electron or muon) and a neutrino. Results are presented based on the analysis of pp collisions at a center-of-mass energy of 7 TeV corresponding to an integrated luminosity of 1.04 fb−1. No excess beyond Standard Model expectations is observed. A W' with Sequential Standard Model couplings is excluded at the 95% confidence level for masses up to 2.15 TeV.
Author | : Alaettin Serhan Mete |
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Total Pages | : 117 |
Release | : 2012 |
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Download Search for a Heavy Charged Gauge Boson Decaying to a Muon and a Neutrino in 1 Fb−1 of Proton-proton Collisions at [square Root of S] Book in PDF, Epub and Kindle
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Total Pages | : 22 |
Release | : 2012 |
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Download Search for High-Mass States with One Lepton Plus Missing Transverse Momentum in Proton-Proton Collisions at $\sqrt{s} with the ATLAS Detector Book in PDF, Epub and Kindle
The ATLAS detector is used to search for high-mass states, such as heavy charged gauge bosons (W′,W*), decaying to a charged lepton (electron or muon) and a neutrino. Results are presented based on the analysis of ppcollisions at a center-of-mass energy of 7 TeV corresponding to an integrated luminosity of 36 pb−1. No excess beyond standard model expectations is observed. A W′ with sequential standard model couplings is excluded at 95% confidence level for masses below 1.49 TeV, and a W* (charged chiral boson) for masses below 1.35 TeV.
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Total Pages | : 44 |
Release | : 2015 |
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Download Search for Heavy Majorana Neutrinos with the ATLAS Detector in Pp Collisions at [arrow]" Book in PDF, Epub and Kindle
A search for heavy Majorana neutrinos in events containing a pair of high-pT leptons of the same charge and high-pT jets is presented. The search uses 20.3 fb-1 of pp collision data collected with the ATLAS detector at the CERN Large Hadron Collider with a centre-of-mass energy of [arrow]" = 8 TeV. The data are found to be consistent with the background-only hypothesis based on the Standard Model expectation. In the context of a Type-I seesaw mechanism, limits are set on the production cross-section times branching ratio for production of heavy Majorana neutrinos in the mass range between 100 and 500 GeV. The limits are subsequently interpreted as limits on the mixing between the heavy Majorana neutrinos and the Standard Model neutrinos. In the context of a left-right symmetric model, limits on the production cross-section times branching ratio are set with respect to the masses of heavy Majorana neutrinos and heavy gauge bosons WR and Z'.
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Total Pages | : 21 |
Release | : 2016 |
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Download Search for W' Decaying to Tau Lepton and Neutrino in Proton-proton Collisions at $\sqrt{s}$ Book in PDF, Epub and Kindle
We found that the first search for a heavy charged vector boson in the final state with a tau lepton and a neutrino is reported, using 19.7 fb-1 of LHC data at √s = 8 TeV. A signal would appear as an excess of events in kinematic regions where the standard model background is low. No excess is observed. Limits are set on a model in which the W' decays preferentially to fermions of the third generation. Our results substantially extend previous constraints on this model. Masses below 2.0 to 2.7 TeV are excluded, depending on the model parameters. In addition, the existence of a W' boson with universal fermion couplings is excluded at 95% confidence level, for W' masses below 2.7 TeV.
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Release | : 2011 |
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Download Search for a W' Boson Decaying to a Muon and a Neutrino in Pp Collisions at Sqrt(s) Book in PDF, Epub and Kindle
A new heavy gauge boson, W', decaying to a muon and a neutrino, is searched for in pp collisions at a centre-of-mass of 7 TeV. The data, collected with the CMS detector at the LHC, correspond to an integrated luminosity of 36 inverse picobarns. No significant excess of events above the standard model expectation is found in the transverse mass distribution of the muon-neutrino system. Masses below 1.40 TeV are excluded at the 95% confidence level for a sequential standard-model-like W'. The W' mass lower limit increases to 1.58 TeV when the present analysis is combined with the CMS result for the electron channel.
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Total Pages | : 227 |
Release | : 2011 |
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Download Search for Heavy W'bosons Decaying Into Muon and Neutrino in "pp" Collisions at √s Book in PDF, Epub and Kindle
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Release | : 2015 |
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Download Search for Heavy Lepton Resonances Decaying to a Z Boson and a Lepton in Pp Collisions at {u221A}s Book in PDF, Epub and Kindle
In this study, a search for heavy leptons decaying to a Z boson and an electron or a muon is presented. The search is based on pp collision data taken at √s=8 TeV by the ATLAS experiment at the CERN Large Hadron Collider, corresponding to an integrated luminosity of 20.3 fb−1. Three high-transverse-momentum electrons or muons are selected, with two of them required to be consistent with originating from a Z boson decay. No significant excess above Standard Model background predictions is observed, and 95% confidence level limits on the production cross section of high-mass trilepton resonances are derived. The results are interpreted in the context of vector-like lepton and type-III seesaw models. For the vector-like lepton model, most heavy lepton mass values in the range 114–176 GeV are excluded. For the type-III seesaw model, most mass values in the range 100–468 GeV are excluded.