Search For The Standard Model Higgs Boson And Test Of Cp Invariance In Vector Boson Fusion Production Of The Higgs Boson In The Fully Leptonic H Tautau Ll4nu Final State In Proton Proton Collisions With The Atlas Detector At The Lhc
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Search For The Standard Model Higgs Boson And Test Of Cp Invariance In Vector Boson Fusion Production Of The Higgs Boson In The Fully Leptonic H Tautau Ll4nu Final State In Proton Proton Collisions With The Atlas Detector At The Lhc
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Author : Christian Schillo
language : en
Publisher:
Release Date : 2016
Search For The Standard Model Higgs Boson And Test Of Cp Invariance In Vector Boson Fusion Production Of The Higgs Boson In The Fully Leptonic H Tautau Ll4nu Final State In Proton Proton Collisions With The Atlas Detector At The Lhc written by Christian Schillo 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.
Search For The Standard Model Higgs Boson And Test Of Cp Invariance In Vector Boson Fusion Production Of The Higgs Boson In The Fully Leptonic H T T L L 4v Final State In Proton Proton Collisions With The Atlas Detector At The Lhc
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Author : Christian Schillo
language : en
Publisher:
Release Date : 2016
Search For The Standard Model Higgs Boson And Test Of Cp Invariance In Vector Boson Fusion Production Of The Higgs Boson In The Fully Leptonic H T T L L 4v Final State In Proton Proton Collisions With The Atlas Detector At The Lhc written by Christian Schillo 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.
Test Of Cp Invariance In Vector Boson Fusion Production Of The Higgs Boson In The H Tau Tau Channel In Proton Proton Collisions At S
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Author : [Study Group] ATLAS Collaboration CERN
language : en
Publisher:
Release Date : 2020
Test Of Cp Invariance In Vector Boson Fusion Production Of The Higgs Boson In The H Tau Tau Channel In Proton Proton Collisions At S written by [Study Group] 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 2020 with categories.
Abstract: A test of CP invariance in Higgs boson production via vector-boson fusion is performed in the decay channel. This test uses the Optimal Observable method and is carried out using of proton-proton collision data collected by the ATLAS experiment at the LHC. Contributions from CP-violating interactions between the Higgs boson and electroweak gauge bosons are described by an effective field theory, in which the parameter governs the strength of CP violation. No sign of CP violation is observed in the distributions of the Optimal Observable, and is constrained to the interval [−0.090, 0.035] at the 68% confidence level (CL), compared to an expected interval of based upon the Standard Model prediction. No constraints can be set on at 95% CL, while an expected 95% CL interval of for the Standard Model hypothesis was expected
Measurement Of The Higgs Boson Production Cross Section And Test Of Cp Invariance In Vector Boson Fusion Production With H Decays In The Fully Leptonic Final State With The Atlas Detector At The Lhc
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Author : Alena Lösle
language : en
Publisher:
Release Date : 2020
Measurement Of The Higgs Boson Production Cross Section And Test Of Cp Invariance In Vector Boson Fusion Production With H Decays In The Fully Leptonic Final State With The Atlas Detector At The Lhc written by Alena Lösle and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020 with categories.
Search For The Standard Model Higgs Boson Produced In Association With A Vector Boson And Decaying Into A Tau Pair In Pp Collisions At S
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Author :
language : en
Publisher:
Release Date : 2016
Search For The Standard Model Higgs Boson Produced In Association With A Vector Boson And Decaying Into A Tau Pair 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.
A search for the standard model Higgs boson produced in association with a vector boson with the decay H → ?? is presented. The data correspond to 20.3 fb-1 of integrated luminosity from proton-proton collisions at √s=8 TeV recorded by the ATLAS experiment at the LHC during 2012. The data agree with the background expectation, and 95% confidence-level upper limits are placed on the cross section of this process. The observed (expected) limit, expressed in terms of the signal strength ? = ?/?SM for mH = 125 GeV, is ?
Test Of Cp Invariance In Vector Boson Fusion Production Of The Higgs Boson Using The Optimal Observable Method In The Di Tau Decay Channel With The Atlas Detector
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Author : Martin Spangenberg (Researcher in particle physics)
language : en
Publisher:
Release Date : 2016
Test Of Cp Invariance In Vector Boson Fusion Production Of The Higgs Boson Using The Optimal Observable Method In The Di Tau Decay Channel With The Atlas Detector written by Martin Spangenberg (Researcher in particle physics) and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016 with Higgs bosons categories.
Measurement Of The Higgs Boson Properties Using Its Decay To A Pair Of Tau Leptons In Proton Proton Collisions At S
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Author : Doyeong Kim
language : en
Publisher:
Release Date : 2022
Measurement Of The Higgs Boson Properties Using Its Decay To A Pair Of Tau Leptons In Proton Proton Collisions At S written by Doyeong Kim and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022 with categories.
The Compact Muon Solenoid (CMS) detector has successfully operated with the Large Hadron Collider (LHC) collisions since 2010, leading to the Higgs boson discovery in 2012 by the CMS and ATLAS collaborations. The analyses of data taken during Run 2 (2016-2018) has already led to many interesting results about the properties of the Higgs boson and for the most part they are compatible in the context of the standard model (SM) so far. These studies are important because the SM appears to be an approximation of a more general theory. Precise studies of the Higgs boson's interactions with the known matter and force particles are essential to reveal the microscopic deviations from the SM prediction. One of such interactions is Yukawa couplings of the Higgs boson and fermions. The H → [tau tau] decay is the most sensitive fermionic decay mode that allows direct probing of this interaction. This thesis presents a study of the Higgs boson properties by observing its decay to a pair of tau leptons and testing evidence of non-SM interactions in the Higgs boson production. The results exploit the data collected by the CMS detector during LHC Run-2, in proton-proton collisions with a center-of-mass energy of 13 TeV. Firstly, the Higgs bosons' properties were explored by two complementary approaches by measuring its cross sections. Thanks to the observation of the H → [tau tau] decay in 2016, we can measure the total cross section with higher precision. Furthermore, in the first analysis, the cross sections of different Higgs productions were scrutinized using fine selections within each Higgs production mode which are mutually exclusive using the Simplified Template Cross Section (STXS) framework, proposed by the LHC Higgs Cross Section Working Group. In the second analysis, the first-ever measurement of the inclusive and differential fiducial cross sections for the Higgs boson production decaying to a pair of tau leptons was presented. In the third analysis, a search for anomalous couplings in the Higgs production vertex, including Charge-Parity (CP) violating couplings, is also performed targeting Higgs boson production via gluon fusion in association with two jets and vector boson fusion. None of these analyses has found any hint of new physics beyond the SM, but stringent limits on anomalous Higgs boson couplings to data were set and cross sections of the Higgs bosons in smaller phase spaces were precisely measured.
Search For The Standard Model Higgs Boson Produced In Association With A Vector Boson And Decaying Into A Tau Pair In Math Display
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Author :
language : en
Publisher:
Release Date : 2016
Search For The Standard Model Higgs Boson Produced In Association With A Vector Boson And Decaying Into A Tau Pair 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 2016 with categories.
A search for the standard model Higgs boson produced in association with a vector boson with the decay H → [tau][tau] is presented. The data correspond to 20.3 fb-1 of integrated luminosity from proton-proton collisions at √s=8 TeV recorded by the ATLAS experiment at the LHC during 2012. The data agree with the background expectation, and 95% confidence-level upper limits are placed on the cross section of this process. The observed (expected) limit, expressed in terms of the signal strength [mu] = [sigma]/[sigma]SM for mH = 125 GeV, is [mu]
Test Of Cp Invariance In Vector Boson Fusion Production Of The Higgs Boson Using The Optimal Observable Method In The Ditau Decay Channel With The Atlas Detector
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Author : Hannah Arnold
language : en
Publisher:
Release Date : 2016
Test Of Cp Invariance In Vector Boson Fusion Production Of The Higgs Boson Using The Optimal Observable Method In The Ditau Decay Channel With The Atlas Detector written by Hannah Arnold 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.
Discovery And Measurement Of The Higgs Boson In The Ww Decay Channel
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Author : David Hall
language : en
Publisher: Springer
Release Date : 2015-06-15
Discovery And Measurement Of The Higgs Boson In The Ww Decay Channel written by David Hall and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-06-15 with Science categories.
This thesis describes the stand-alone discovery and measurement of the Higgs boson in its decays to two W bosons using the Run-I ATLAS dataset. This is the most precise measurement of gluon-fusion Higgs boson production and is among the most significant results attained at the LHC. The thesis provides an exceptionally clear exposition on a complicated analysis performed by a large team of researchers. Aspects of the analysis performed by the author are explained in detail; these include new methods for evaluating uncertainties on the jet binning used in the analysis and for estimating the background due to associated production of a W boson and an off-shell photon. The thesis also describes a measurement of the WW cross section, an essential background to Higgs boson production. The primary motivation of the LHC was to prove or disprove the existence of the Higgs boson. In 2012, CERN announced this discovery and the resultant ATLAS publication contained three decay channels: gg, ZZ, and WW.