Search for Higgs and Z Boson Decays to J/???? and ??(nS)?? with the ATLAS Detector

By G. Aad, B. Abbott, J. Abdallah, S. Abdel Khalek, O. Abdinov, R. Aben, B. Abi, M. Abolins, O. AbouZeid, H. Abramowicz and 488 more. 2015

213 citations recorded by the source corpus.

A search for the decays of the Higgs and Z bosons to J= ψγ and ϒ ð nS Þ γ ( n ¼ 1 ; 2 ; 3 ) is performed with pp collision data samples corresponding to integrated luminosities of up to 20 . 3 fb − 1 collected at ffiffiffi s p ¼ 8 TeV with the ATLAS detector at the CERN Large Hadron Collider. No significant excess of events is observed above expected backgrounds and 95% C.L. upper limits are placed on the branching fractions. In the J= ψγ final state the limits are 1 . 5 × 10 − 3 and 2 . 6 × 10 − 6 for the Higgs and Z boson decays, respectively, while in the ϒ ð 1 S; 2 S; 3 S Þ γ final states the limits are ð 1 . 3 ; 1 . 9 ; 1 . 3 Þ × 10 − 3 and ð 3 . 4 ; 6 . 5 ; 5 . 4 Þ × 10 − 6 , respectively.

Subfields: Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/d9d5169a53b079e97e9d88fd0c25f2204f65ec74

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In Nuclear and High Energy Physics

1. A. Boveia
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Citations in the corpus

• Heavy-flavour and quarkonium production in the LHC era: from proton–proton to heavy-ion collisions (2015, unknown): “the search of the exclusive decay of H0 into J/ψ + γ and Υ + γ [287].”
• Measurements of the Higgs boson production and decay rates and coupling strengths using pp collision data at \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\o (2015, unknown): “The ATLAS Collaboration has also performed a search for the rare H → J/ψγ decay [27] which has the potential to constrain the Higgs boson coupling strength to the charm quark.”
• Search for exclusive Higgs and Z boson decays to ϕγ and ργ with the ATLAS detector (2017, methodology): “The rare decays of the Higgs boson to a heavy quarkonium state, J/ψ or Υ(nS) with n = 1, 2, 3, and a photon have been suggested to probe the charm- and bottom-quark couplings to the Higgs boson [16–19] and have already been searched for by the ATLAS collaboration [20], resulting in 95% CL upper limi”