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Publication . Article . Other literature type . Preprint . Research . Report . 2018

Search for a charged Higgs boson decaying to charm and bottom quarks in proton-proton collisions at s√=8 TeV

Ece Aşılar; Marko Dragicevic; A. Escalante Del Valle; Jochen Schieck; Claudia-Elisabeth Wulz; P. Van Mechelen; Freya Blekman; +451 Authors
Open Access
Croatian
Abstract

A search for charged Higgs boson decaying to a charm and a bottom quark ( $ {\mathrm{H}}^{+}\to \mathrm{c}\overline{\mathrm{b}} $ ) is performed using 19.7 fb$^{−1}$ of pp collision data at $ \sqrt{s}=8 $ TeV. The production mechanism investigated in this search is $ \mathrm{t}\overline{\mathrm{t}} $ pair production in which one top quark decays to a charged Higgs boson and a bottom quark and the other decays to a charged lepton, a neutrino, and a bottom quark. Charged Higgs boson decays to $ \mathrm{c}\overline{\mathrm{b}} $ are searched for, resulting in a final state containing at least four jets, a charged lepton (muon or electron), and missing transverse momentum. A kinematic fit is performed to identify the pair of jets least likely to be the bottom quarks originating from direct top quark decays and the invariant mass of this pair is used as the final observable in the search. No evidence for the presence of a charged Higgs boson is observed and upper limits at 95% confidence level of 0.8–0.5% are set on the branching fraction ℬ(t → H$^{+}$b), assuming ℬ(H$^{+}$ → $ \mathrm{c}\overline{\mathrm{b}} $ ) = 1.0 and ℬ(t → H$^{+}$b) + ℬ(t → Wb) = 1.0, for the charged Higgs boson mass range 90–150 GeV.

Journal of high energy physics 1811(11), 115 (2018). doi:10.1007/JHEP11(2018)115

Published by Springer Nature, Cham

Subjects by Vocabulary

arXiv: High Energy Physics::Experiment High Energy Physics::Phenomenology High Energy Physics::Lattice Physics::Fluid Dynamics

Dewey Decimal Classification: ddc:530

Microsoft Academic Graph classification: Bottom quark Large Hadron Collider Lepton Higgs boson Particle physics Charm (quantum number) Top quark Quark Pair production Physics

Subjects

Physics, p p: colliding beams, top: pair production, Higgs particle: charged particle, top: rare decay, p p: scattering, Higgs particle: decay, Higgs particle: mass, transverse momentum: missing-energy, final state: ((n)jet lepton), charm: particle identification, bottom: particle identification, Higgs particle: branching ratio, top: branching ratio: upper limit, kinematics, statistical analysis, data analysis method, experimental results, Higgs particle --> charm anti-bottom, 8000 GeV-cms, Science & Technology, Physical Sciences, Physics, Particles & Fields, Physics, Hadron-Hadron scattering (experiments), Higgs physics, CONSERVATION-LAWS, BROKEN SYMMETRIES, CROSS-SECTION, MASS, MODEL, PLUS, LHC, hep-ex, 01 Mathematical Sciences, 02 Physical Sciences, Nuclear & Particles Physics, Hadron-Hadron scattering (experiments); Higgs physics; Nuclear and High Energy Physics, Nuclear and High Energy Physics, 114 Physical sciences, Hadron-Hadron scattering (experiments), Higgs Physics, Higgs particle --> charm anti-bottom, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], CMS collaboration ; proton-proton collisions ; BSM ; Higgs physics, Hadron-Hadron scattering (experiments); Higgs physics, Settore FIS/01 - Fisica Sperimentale, S064HGC, High energy physics ; Experimental particle physics ; LHC ; CMS ; Standard Model, 8000 GeV-cms, Higgs particle --> charm anti-bottom, branching ratio [Higgs particle], charged particle [Higgs particle], decay [Higgs particle], mass [Higgs particle], particle identification [bottom], particle identification [charm], data analysis method, experimental results, ((n)jet lepton) [final state], kinematics, colliding beams [p p], scattering [p p], statistical analysis, branching ratio: upper limit [top], pair production [top], rare decay [top], missing-energy [transverse momentum], High Energy Physics - Experiment, Particle Physics - Experiment, hep-ex, [PHYS.HEXP] Physics [physics]/High Energy Physics - Experiment [hep-ex], 530, PARTICLE PHYSICS;LARGE HADRON COLLIDER;CMS, CONSERVATION-LAWS, BROKEN SYMMETRIES, CROSS-SECTION, MASS, MODEL, PLUS, LHC, Higgs physic, Aerospace Engineering(Formerly Aeronautical Engineering), Higgs boson, Hadron-Hadron scattering (experiments); Higgs physics; CONSERVATION-LAWS; BROKEN SYMMETRIES; CROSS-SECTION; MASS; MODEL; PLUS; LHC, Hadron-Hadron scattering (experiments), Higgs physics., High Energy Physics - Experiment (hep-ex), FOS: Physical sciences, Physique des particules élémentaires

Funded by
EC| AMVA4NewPhysics
Project
AMVA4NewPhysics
Advanced Multi-Variate Analysis for New Physics Searches at the LHC
  • Funder: European Commission (EC)
  • Project Code: 675440
  • Funding stream: H2020 | MSCA-ITN-ETN
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