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Search for the Higgs Boson decaying to two muons in proton-proton collisions at s =13 TeV

Search for the Higgs Boson decaying to two muons in proton-proton collisions at s =13 TeV
Search for the Higgs Boson decaying to two muons in proton-proton collisions at s =13 TeV

A search for the Higgs boson decaying to two oppositely charged muons is presented using data recorded by the CMS experiment at the CERN LHC in 2016 at a center-of-mass energy s=13 TeV, corresponding to an integrated luminosity of 35.9 fb-1. Data are found to be compatible with the predicted background. For a Higgs boson with a mass of 125.09 GeV, the 95% confidence level observed (background-only expected) upper limit on the production cross section times the branching fraction to a pair of muons is found to be 3.0 (2.5) times the standard model expectation. In combination with data recorded at center-of-mass energies s=7 and 8 TeV, the background-only expected upper limit improves to 2.2 times the standard model value with a standard model expected significance of 1.0 standard deviation. The corresponding observed upper limit is 2.9 with an observed significance of 0.9 standard deviation. This corresponds to an observed upper limit on the standard model Higgs boson branching fraction to muons of 6.4×10-4 and to an observed signal strength of 1.0±1.0(stat)±0.1(syst).

0031-9007
1-18
Sirunyan, A.M.
846a7137-803d-49de-aae7-d6b85519e829
Belyaev, A.
6bdb9638-5ff9-4b65-a8f2-34bae3ac34b3
et al.
The CMS Collaboration
Sirunyan, A.M.
846a7137-803d-49de-aae7-d6b85519e829
Belyaev, A.
6bdb9638-5ff9-4b65-a8f2-34bae3ac34b3

Sirunyan, A.M. , et al. and The CMS Collaboration (2019) Search for the Higgs Boson decaying to two muons in proton-proton collisions at s =13 TeV. Physical Review Letters, 122 (2), 1-18, [021801]. (doi:10.1103/PhysRevLett.122.021801).

Record type: Article

Abstract

A search for the Higgs boson decaying to two oppositely charged muons is presented using data recorded by the CMS experiment at the CERN LHC in 2016 at a center-of-mass energy s=13 TeV, corresponding to an integrated luminosity of 35.9 fb-1. Data are found to be compatible with the predicted background. For a Higgs boson with a mass of 125.09 GeV, the 95% confidence level observed (background-only expected) upper limit on the production cross section times the branching fraction to a pair of muons is found to be 3.0 (2.5) times the standard model expectation. In combination with data recorded at center-of-mass energies s=7 and 8 TeV, the background-only expected upper limit improves to 2.2 times the standard model value with a standard model expected significance of 1.0 standard deviation. The corresponding observed upper limit is 2.9 with an observed significance of 0.9 standard deviation. This corresponds to an observed upper limit on the standard model Higgs boson branching fraction to muons of 6.4×10-4 and to an observed signal strength of 1.0±1.0(stat)±0.1(syst).

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Published date: 14 January 2019

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Local EPrints ID: 429291
URI: http://eprints.soton.ac.uk/id/eprint/429291
ISSN: 0031-9007
PURE UUID: 1fe48e81-9e49-4197-811a-06ddf41803e8
ORCID for A. Belyaev: ORCID iD orcid.org/0000-0002-1733-4408

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Date deposited: 26 Mar 2019 17:30
Last modified: 17 Dec 2019 01:44

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Contributors

Author: A.M. Sirunyan
Author: A. Belyaev ORCID iD
Corporate Author: et al.
Corporate Author: The CMS Collaboration

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