Measurement Of Di Photon Induced Production Of W Boson Pairs And Limits On Anomalous Quartic Gauge Couplings
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Measurement Of Di Photon Induced Production Of W Boson Pairs And Limits On Anomalous Quartic Gauge Couplings
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Author : Chav Chhiv Chau
language : en
Publisher:
Release Date : 2017
Measurement Of Di Photon Induced Production Of W Boson Pairs And Limits On Anomalous Quartic Gauge Couplings written by Chav Chhiv Chau and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017 with categories.
Extension of the Standard model can enhance the interactions between four vector bosons, so the couplings deviate from their predicted value due to new quartic-gauge-boson interactions. Searches for those deviations are model-independent and cover a wide range of possible new physics. This thesis describes the measurement of exclusive production of W-boson pairs and the search for WW\gamma\gamma anomalous quartic gauge couplings at the Large Hadron Collider (LHC) using a data set corresponding to 20.2 fb-1 of proton-proton collisions collected by the ATLAS detector in 2012. This analysis considers the W+W- decay modes leading to e\mu leptons. At the LHC, exclusive interactions are characterized by the absence of additional activity in the vicinity of interaction vertices. A technique based on tracks was developed to select the exclusive event candidates. The technique accepts approximately 60% of the signal, while eliminates most of the background due to suppression by 3--4 orders of magnitude. Additional background reduction is achieved by rejecting the region pT^{e\mu}
Physics Briefs
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Author :
language : en
Publisher:
Release Date : 1992
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 1992 with Physics categories.
Referativny Zhurnal
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Author :
language : ru
Publisher:
Release Date : 1994
Referativny Zhurnal 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 Physics categories.
Inis Atomindex
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Author :
language : en
Publisher:
Release Date : 1987
Inis Atomindex written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1987 with Nuclear energy categories.
Science Citation Index
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Author :
language : en
Publisher:
Release Date : 1995
Science Citation 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 1995 with Science categories.
Vols. for 1964- have guides and journal lists.
Measurement Of W Plus Minus W Plus Minus Vector Boson Scattering And Limits On Anomalous Quartic Gauge Couplings With The Atlas Detector
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Author : ATLAS Collaboration CERN
language : en
Publisher:
Release Date : 2017
Measurement Of W Plus Minus W Plus Minus Vector Boson Scattering And Limits On Anomalous Quartic Gauge Couplings With The Atlas Detector written by ATLAS Collaboration CERN and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017 with categories.
Boson Pair Production And Triple Gauge Couplings
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Author :
language : en
Publisher:
Release Date : 1997
Boson Pair Production And Triple Gauge Couplings written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997 with categories.
The D0 and CDF Collaborations measure boson pair production including W[gamma], WW, WZ, ZZ and Z[gamma] production in p{anti p} collisions at √s = 1800 GeV. New results, from direct measurements, are described including W[gamma], WW, and Z[gamma] production cross sections and limits on non-Standard Model triple gauge boson couplings. The limits on anomalous WW[gamma], WWZ, Z[gamma][gamma] and ZZ[gamma] couplings are the most restrictive available. Prospects for Run II are discussed.
Measurement Of Electroweak Wz Boson Production And Search For New Physics At Sqrt S
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Author : Kenneth David Long
language : en
Publisher:
Release Date : 2019
Measurement Of Electroweak Wz Boson Production And Search For New Physics At Sqrt S written by Kenneth David Long and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019 with categories.
A measurement of the simultaneous production of a W and a Z boson (WZ production) via vector boson scattering is presented. The measurement is performed in the leptonic decay modes WZ --> lvl'l', where l, l'indicate an electron or muon. The analysis is based on a data sample of proton-proton collisions at sqrt(s) = 13 TeV at the CERN Large Hadron Collider collected with the Compact Muon Solenoid detector and corresponding to an integrated luminosity of 35.9 fb-1. The WZ plus two jet production cross section is measured in fiducial regions with enhanced contributions from electroweak (EW) production and found to be consistent with standard model predictions. The EW WZ production in association with two jets is measured with an observed (expected) significance of 2.2 (2.5) standard deviations. Results are also interpreted in terms of physics beyond the standard model modifying the interactions of the W and Z bosons. Constraints on charged Higgs boson production and on anomalous quartic gauge couplings in terms of dimension-eight effective field theory operators are presented.
Electroweak Results From The Tevatron
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Author :
language : en
Publisher:
Release Date : 1995
Electroweak Results From The Tevatron written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1995 with categories.
Results from the CDF and D{O} experiments are presented on properties of the W" and Z° gauge bosons using final states containing electrons and muons based on large integrated luminosities. In particular, measurements of the W" and Z° production cross sections, the W-charge asymmetry and the CDF measurement of the W-mass are summarized. Gauge boson self interactions axe measured by studying di-gauge boson production and limits on anomalous gauge boson couplings axe discussed.
Measurement Of The W W Production Cross Section And Search For Anomalous Ww Gamma And Wwz Couplings In P Bar P Collisions At Sqrt S
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Author :
language : en
Publisher:
Release Date : 2009
Measurement Of The W W Production Cross Section And Search For Anomalous Ww Gamma And Wwz Couplings In P Bar P 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 2009 with categories.
This Letter describes the current most precise measurement of the W boson pair production cross section and most sensitive test of anomalous WW[gamma] and WWZ couplings in p{bar p} collisions at a center-of-mass energy of 1.96 TeV. The WW candidates are reconstructed from decays containing two charged leptons and two neutrinos, where the charged leptons are either electrons or muons. Using data collected by the CDF II detector from 3.6 fb−1 of integrated luminosity, a total of 654 candidate events are observed with an expected background contribution of 320 ± 47 events. The measured total cross section is [sigma](p{bar p} 2!WW− + X) = 12.1 ± 0.9 (stat){sub -1.4}{sup +1.6} (syst) pb, which is in good agreement with the standard model prediction. The same data sample is used to place constraints on anomalous WW[gamma] and WWZ couplings.