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Title: Measurement of Higgs boson production and properties in the WW decay channel with leptonic final states

Journal Article · · Journal of High Energy Physics (Online)
 [1]
  1. Yerevan Physics Inst. (YerPhI), Yerevan (Armenia). et al.

A search for the standard model Higgs boson decaying to a W-boson pair at the LHC is reported. The event sample corresponds to an integrated luminosity of 4.9 and 19.4 inverse femtobarns collected with the CMS detector in pp collisions at √s = 7 and 8 TeV, respectively. The Higgs boson candidates are selected in events with two or three charged leptons. An excess of events above background is observed, consistent with the expectation from the standard model Higgs boson with a mass of around 125 GeV. The probability to observe an excess equal or larger than the one seen, under the background-only hypothesis, corresponds to a significance of 4.3 standard deviations for mH = 125.6 GeV. The observed signal cross section times the branching fraction to WW for mH = 125.6 GeV is 0.72+0.20-0.18 times the standard model expectation. The spin-parity JP=0+ hypothesis is favored against a narrow resonance with JP=2+ or JP=0 that decays to a W-boson pair. Lastly, this result provides strong evidence for a Higgs-like boson decaying to a W-boson pair.

Research Organization:
Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)
Sponsoring Organization:
USDOE Office of Science (SC), High Energy Physics (HEP)
Contributing Organization:
The CMS Collaboration
Grant/Contract Number:
AC02-07CH11359
OSTI ID:
1151700
Report Number(s):
FERMILAB-PUB-13-616-CMS; arXiv eprint number arXiv:1312.1129
Journal Information:
Journal of High Energy Physics (Online), Vol. 2014, Issue 1; ISSN 1029-8479
Publisher:
Springer BerlinCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 211 works
Citation information provided by
Web of Science

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Cited By (18)

Minimal semi-annihilating ℤ N scalar dark matter journal June 2014
Observation of Higgs Boson Decay to Bottom Quarks journal September 2018
B-meson anomalies and Higgs physics in flavored $$U(1)'$$ U ( 1 ) ′ model journal April 2018
Killing the cMSSM softly journal February 2016
Killing the CMSSM softly
  • Bechtle, Philip; Camargo Molina, José Eliel; Desch, Klaus
  • Proceedings of The European Physical Society Conference on High Energy Physics — PoS(EPS-HEP2015) https://doi.org/10.22323/1.234.0139
conference March 2016
Study of vector boson scattering and search for new physics in events with two same-sign leptons and two jets text January 2015
Implications of a 125 GeV Higgs boson journal March 2015
Observation of the diphoton decay of the Higgs boson and measurement of its properties text January 2014
Testing C P violation in the scalar sector at future e + e colliders journal February 2017
Future prospects of mass-degenerate Higgs bosons in the C P -conserving two-Higgs-doublet model journal June 2018
Revealing mass-degenerate states in Higgs boson signals journal December 2019
Bounds on the mass of doubly charged Higgs bosons in the same-sign diboson decay scenario journal December 2014
Higgs precision analysis updates 2014 journal November 2014
Observation of Higgs Boson Decay to Bottom Quarks text January 2018
Observation of the diphoton decay of the Higgs boson and measurement of its properties journal October 2014
Observation of Higgs boson decay to bottom quarks text January 2018
Fingerprinting nonminimal Higgs sectors journal October 2014
Precise determination of the mass of the Higgs boson and tests of compatibility of its couplings with the standard model predictions using proton collisions at 7 and 8 $$\,\text {TeV}$$ TeV journal May 2015

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