Search For A Heavy Gauge Boson Decaying To A Charged Lepton And A Neutrino In 1 Fb 1 Of Pp Collisions At U221as
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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.
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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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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.
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 | : 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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Total Pages | : 120 |
Release | : 2005 |
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Download Search for a New Charged Heavy Vector Boson Decaying to an Electron-neutrino Pair in P$\bar{p}$ Collisions at {u221A}s Book in PDF, Epub and Kindle
We present results on a search for a heavy charged vector boson, W', decaying to an electron-neutrino pair in p$ar{p}$ collisions at √s = 1.96 TeV using a data sample corresponding to an integrated luminosity of 205 pb-1. We found no evidence of this decay channel, and set 95% confidence level limits on the production cross section times branching fraction assuming the light neutrino. We also set the limit on the W' boson mass at MW' > 788 GeV/c2, assuming the standard model strength couplings.
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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.
Author | : Jieun Kim |
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Total Pages | : 120 |
Release | : 2005 |
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Download Search for a New Charged Heavy Vector Boson Decaying to an Electron-neutrino Pair in P Anti-p Collisions at S**(1/2) Book in PDF, Epub and Kindle
We present results on a search for a heavy charged vector boson, W', decaying to an electron-neutrino pair in p{bar p} collisions at {radical}s = 1.96 TeV using a data sample corresponding to an integrated luminosity of 205 pb{sup -1}. We found no evidence of this decay channel, and set 95% confidence level limits on the production cross section times branching fraction assuming the light neutrino. We also set the limit on the W' boson mass at M{sub W'}> 788 GeV/c{sup 2}, assuming the standard model strength couplings.
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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 | : 232 |
Release | : 2007 |
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Download Search for New Heavy Charged Gauge Bosons Book in PDF, Epub and Kindle
Additional gauge bosons are introduced in many theoretical extensions to the Standard Model. A search for a new heavy charged gauge boson W' decaying into an electron and a neutrino is presented. The data used in this analysis was taken with the D0 detector at the Fermilab proton-antiproton collider at a center-of-mass energy of 1.96 TeV and corresponds to an integrated luminosity of about 1 fb-1. Since no significant excess is observed in the data, an upper limit is set on the production cross section times branching fraction [sigma]W'xBr (W' → ev). Using this limit, a W' boson with mass below ~1 TeV can be excluded at the 95% confidence level assuming that the new boson has the same couplings to fermions as the Standard Model W boson.