Search for a standard model-like Higgs boson in the mass range between 70 and 110 GeV in the diphoton final state in proton-proton collisions at √s = 8 and 13 TeV

CMS Collaboration

doi:10.1016/j.physletb.2019.03.064

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Search for a standard model-like Higgs boson in the mass range between 70 and 110 GeV in the diphoton final state in proton-proton collisions at √s = 8 and 13 TeV

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Search for a standard model-like Higgs boson in the mass range between 70 and 110 GeV in the diphoton final state in proton-proton collisions at √s = 8 and 13 TeV

CMS Collaboration

Physics letters. B Nuclear, elementary particle and high-energy physics, Vol.793, pp.320-347

06/10/2019

DOI: 10.1016/j.physletb.2019.03.064

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Abstract

The results of a search for a standard model-like Higgs boson in the mass range between 70 and 110 GeV decaying into two photons are presented. The analysis uses the data set collected with the CMS experiment in proton-proton collisions during the 2012 and 2016 LHC running periods. The data sample corresponds to an integrated luminosity of 19.7 (35.9)fb−1 at �=8 (13) TeV. The expected and observed 95% confidence level upper limits on the product of the cross section and branching fraction into two photons are presented. The observed upper limit for the 2012 (2016) data set ranges from 129 (161) fb to 31 (26) fb. The statistical combination of the results from the analyses of the two data sets in the common mass range between 80 and 110 GeV yields an upper limit on the product of the cross section and branching fraction, normalized to that for a standard model-like Higgs boson, ranging from 0.7 to 0.2, with two notable exceptions: one in the region around the Z boson peak, where the limit rises to 1.1, which may be due to the presence of Drell–Yan dielectron production where electrons could be misidentified as isolated photons, and a second due to an observed excess with respect to the standard model prediction, which is maximal for a mass hypothesis of 95.3 GeV with a local (global) significance of 2.8 (1.3) standard deviations.

Confidence intervals

Cross sections

Higgs bosons

Large Hadron Collider

Luminosity

Particle collisions

Photons

Protons

Quarks

Solenoids

Statistical analysis

Details

Title: Subtitle: Search for a standard model-like Higgs boson in the mass range between 70 and 110 GeV in the diphoton final state in proton-proton collisions at √s = 8 and 13 TeV
Creators: CMS Collaboration
Contributors: J Nachtman (Contributor) - University of Iowa, Physics and Astronomy
Y Onel (Contributor) - University of Iowa, Physics and Astronomy
Resource Type: Journal article
Publication Details: Physics letters. B Nuclear, elementary particle and high-energy physics, Vol.793, pp.320-347
DOI: 10.1016/j.physletb.2019.03.064
ISSN: 0370-2693
eISSN: 1873-2445
Publisher: Elsevier; Ithaca
Grant note: DOI: 10.13039/501100010571, name: BMBWF; DOI: 10.13039/501100002428, name: FWF; DOI: 10.13039/501100002661, name: FNRS; DOI: 10.13039/501100003130, name: FWO; DOI: 10.13039/501100003593, name: CNPq; DOI: 10.13039/501100002322, name: CAPES; DOI: 10.13039/501100004586, name: FAPERJ; DOI: 10.13039/501100004263, name: FAPERGS; DOI: 10.13039/501100001807, name: FAPESP; DOI: 10.13039/501100005992, name: MES; DOI: 10.13039/100012470, name: CERN; DOI: 10.13039/501100002367, name: CAS; DOI: 10.13039/501100002855, name: MOST; DOI: 10.13039/501100001809, name: NSFC; DOI: 10.13039/100007637, name: COLCIENCIAS; name: MSES; name: CSF; DOI: 10.13039/501100001810, name: RPF; DOI: 10.13039/501100004299, name: SENESCYT; name: MoER; name: ERC IUT; DOI: 10.13039/501100008530, name: ERDF; DOI: 10.13039/501100002341, name: Academy of Finland; name: MEC; name: HIP; DOI: 10.13039/501100006489, name: CEA; name: CNRS/IN2P3; DOI: 10.13039/501100002347, name: BMBF; DOI: 10.13039/501100001659, name: DFG; DOI: 10.13039/501100001656, name: HGF; DOI: 10.13039/501100003448, name: GSRT; DOI: 10.13039/501100012550, name: NKFIA; DOI: 10.13039/501100001502, name: DAE; name: DST; DOI: 10.13039/501100006115, name: IPM; DOI: 10.13039/501100001602, name: SFI; name: INFN; DOI: 10.13039/501100003621, name: MSIP; DOI: 10.13039/501100003725, name: NRF; name: MES; name: LAS; name: MOE; DOI: 10.13039/501100004386, name: UM; DOI: 10.13039/501100006348, name: BUAP; DOI: 10.13039/501100008688, name: CINVESTAV; DOI: 10.13039/501100003141, name: CONACYT; name: LNS; DOI: 10.13039/100010096, name: SEP; name: UASLP-FAI; name: MOS; DOI: 10.13039/501100003524, name: MBIE; DOI: 10.13039/501100008689, name: PAEC; name: MSHE; name: NSC; DOI: 10.13039/501100001871, name: FCT; DOI: 10.13039/501100003822, name: JINR; name: MON; DOI: 10.13039/501100008687, name: ROSATOM; DOI: 10.13039/501100002674, name: RAS; DOI: 10.13039/501100002261, name: RFBR; DOI: 10.13039/501100013400, name: NRC KI; name: MESTD; DOI: 10.13039/501100007136, name: SEIDI; name: CPAN; name: PCTI; DOI: 10.13039/501100002924, name: FEDER; DOI: 10.13039/501100008981, name: MoSTR; name: Swiss Funding Agencies; name: MST; name: ThEPCenter; name: IPST; name: STAR; DOI: 10.13039/501100004192, name: NSTDA; name: TUBITAK; DOI: 10.13039/100010440, name: TAEK; DOI: 10.13039/501100004742, name: NASU; DOI: 10.13039/501100008690, name: SFFR; DOI: 10.13039/501100000271, name: STFC; DOI: 10.13039/100000015, name: DOE; name: NSF; name: CEFIPRA/IFCPAR; name: Marie-Curie program; name: European Research Council; DOI: 10.13039/100010661, name: Horizon 2020, award: 675440; DOI: 10.13039/501100004117, name: Leventis Foundation; DOI: 10.13039/100000879, name: A.P. Sloan Foundation; DOI: 10.13039/100005156, name: Alexander von Humboldt Foundation; DOI: 10.13039/501100002749, name: Belgian Federal Science Policy Office; DOI: 10.13039/501100003134, name: Fonds pour la Formation à la Recherche dans l'Industrie et dans l'Agriculture; DOI: 10.13039/501100003132, name: Agentschap voor Innovatie door Wetenschap en Technologie; name: F.R.S.-FNRS; DOI: 10.13039/501100003130, name: FWO, award: 30820817; DOI: 10.13039/501100001823, name: Ministry of Education, Youth and Sports; name: Lendület (“Momentum”) Program; name: János Bolyai Research Scholarship of the Hungarian Academy of Sciences; name: New National Excellence Program ÚNKP; DOI: 10.13039/501100012550, name: NKFIA, award: 123842, 123959, 124845, 124850, 125105; name: Council of Science and Industrial Research; DOI: 10.13039/501100001870, name: Foundation for Polish Science; DOI: 10.13039/501100000780, name: European Union; name: Regional Development Fund; name: Ministry of Science and Higher Education, the National Science Center; name: Harmonia, award: 2014/14/M/ST2/00428; name: Opus, award: 2014/13/B/ST2/02543, 2014/15/B/ST2/03998, 2015/19/B/ST2/02861; name: Sonata-bis, award: 2012/07/E/ST2/01406; DOI: 10.13039/100008982, name: Qatar National Research Fund; name: Estatal de Fomento de la Investigación Científica y Técnica de Excelencia María de Maeztu, award: MDM-2015-0509; name: Severo Ochoa del Principado de Asturias; name: EU-ESF; name: Greek NSRF; name: Rachadapisek Sompot Fund for Postdoctoral Fellowship; DOI: 10.13039/501100002873, name: Chulalongkorn University; name: Chulalongkorn Academic; DOI: 10.13039/100000928, name: Welch Foundation, award: C-1845; DOI: 10.13039/100011223, name: Weston Havens Foundation
Language: English
Date published: 06/10/2019
Academic Unit: Physics and Astronomy
Record Identifier: 9984386828102771

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