Search for the Decay of the Higgs Boson to Charm Quarks with the ATLAS Experiment

Summary, in English

A direct search for the standard model Higgs boson decaying to a pair of charm quarks is presented. Associated production of the Higgs and Z bosons, in the decay mode ZH→ + -cc is studied. A data set with an integrated luminosity of 36.1 fb-1 of pp collisions at s=13TeV recorded by the ATLAS experiment at the LHC is used. The H→cc signature is identified using charm-tagging algorithms. The observed (expected) upper limit on σ(pp→ZH)×B(H→cc) is 2.7 (3.9-1.1+2.1) pb at the 95% confidence level for a Higgs boson mass of 125 GeV, while the standard model value is 26 fb. © 2018 CERN.

• Author: M Aaboud; G Aad; B. Abbott; O Abdinov; B Abeloos; S. H. Abidi; Torsten Åkesson; Simona Bocchetta; Eric Corrigan; Caterina Doglioni; Eva Brottmann Hansen; Vincent Hedberg; Göran Jarlskog; Charles Kalderon; Edgar Kellermann; Balazs Konya; Else Lytken; Katja Mankinen; Ulf Mjörnmark; Ruth Pöttgen; Trine Poulsen; Oxana Smirnova; Oleksandr Viazlo
• Department/s: Particle and nuclear physics; eSSENCE: The e-Science Collaboration
• Publishing year: 2018-05
• Language: English
• Publication/Series: Physical Review Letters
• Volume: 120
• Issue: 21
• Links: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85048101813&doi=10.1103%2fPhysRevLett.120.211802&partnerID=40&md5=6d9672263650268cfadf8a6b30a5e0ff; http://dx.doi.org/10.1103/PhysRevLett.120.211802
• Document type: Journal article
• Publisher: American Physical Society
• Topic: Subatomic Physics
• Keywords: Atomic physics; Physics; ATLAS experiment; Charm quarks; Confidence levels; Direct search; Integrated luminosity; Pp collisions; The standard model; Upper limits; Bosons
• Status: Published
• ISBN/ISSN/Other: ISSN: 1079-7114