Probing light-quark Yukawa couplings via hadronic event shapes at lepton colliders

Abstract We propose a novel idea for probing the Higgs boson couplings through the measurement of hadronic event shape distributions in the decay of the Higgs boson at lepton colliders. The method provides a unique test of the Higgs boson couplings and of QCD effects in the decay of the Higgs boson....

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Main Author: Jun Gao
Format: Article
Language:English
Published: SpringerOpen 2018-01-01
Series:Journal of High Energy Physics
Subjects:
Online Access:http://link.springer.com/article/10.1007/JHEP01(2018)038
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spelling doaj-935b368db55843499667c6e01062b2a02020-11-24T22:03:05ZengSpringerOpenJournal of High Energy Physics1029-84792018-01-012018111410.1007/JHEP01(2018)038Probing light-quark Yukawa couplings via hadronic event shapes at lepton collidersJun Gao0INPAC, Shanghai Key Laboratory for Particle Physics and Cosmology, School of Physics and Astronomy, Shanghai Jiao-Tong UniversityAbstract We propose a novel idea for probing the Higgs boson couplings through the measurement of hadronic event shape distributions in the decay of the Higgs boson at lepton colliders. The method provides a unique test of the Higgs boson couplings and of QCD effects in the decay of the Higgs boson. It can be used to probe the Yukawa couplings of the light quarks and to further test the mechanism of electroweak symmetry breaking. From a case study for the proposed Circular Electron-Positron Collider, assuming a hypothesis of SM-like theory, light-quark couplings with a strength greater than 9% of the bottom-quark Yukawa coupling in the standard model can be excluded.http://link.springer.com/article/10.1007/JHEP01(2018)038QCD PhenomenologyJets
collection DOAJ
language English
format Article
sources DOAJ
author Jun Gao
spellingShingle Jun Gao
Probing light-quark Yukawa couplings via hadronic event shapes at lepton colliders
Journal of High Energy Physics
QCD Phenomenology
Jets
author_facet Jun Gao
author_sort Jun Gao
title Probing light-quark Yukawa couplings via hadronic event shapes at lepton colliders
title_short Probing light-quark Yukawa couplings via hadronic event shapes at lepton colliders
title_full Probing light-quark Yukawa couplings via hadronic event shapes at lepton colliders
title_fullStr Probing light-quark Yukawa couplings via hadronic event shapes at lepton colliders
title_full_unstemmed Probing light-quark Yukawa couplings via hadronic event shapes at lepton colliders
title_sort probing light-quark yukawa couplings via hadronic event shapes at lepton colliders
publisher SpringerOpen
series Journal of High Energy Physics
issn 1029-8479
publishDate 2018-01-01
description Abstract We propose a novel idea for probing the Higgs boson couplings through the measurement of hadronic event shape distributions in the decay of the Higgs boson at lepton colliders. The method provides a unique test of the Higgs boson couplings and of QCD effects in the decay of the Higgs boson. It can be used to probe the Yukawa couplings of the light quarks and to further test the mechanism of electroweak symmetry breaking. From a case study for the proposed Circular Electron-Positron Collider, assuming a hypothesis of SM-like theory, light-quark couplings with a strength greater than 9% of the bottom-quark Yukawa coupling in the standard model can be excluded.
topic QCD Phenomenology
Jets
url http://link.springer.com/article/10.1007/JHEP01(2018)038
work_keys_str_mv AT jungao probinglightquarkyukawacouplingsviahadroniceventshapesatleptoncolliders
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