Search for a fermiophobic Higgs boson in the diphoton decay channel with the ATLAS detector

The ATLAS collaboration, V. Büscher, F. Crescioli, S. Haas, B. Mindur, A. A. Nepomuceno

Research output: Contribution to journalLetter

Abstract

A search for a fermiophobic Higgs boson using diphoton events produced in proton-proton collisions at a centre-of-mass energy of √s = 7 TeV is performed using data corresponding to an integrated luminosity of 4.9 fb−1 collected by the ATLAS experiment at the Large Hadron Collider. A specific benchmark model is considered where all the fermion couplings to the Higgs boson are set to zero and the bosonic couplings are kept at the Standard Model values (fermiophobic Higgs model). The largest excess with respect to the background-only hypothesis is found at 125.5 GeV, with a local significance of 2.9 standard deviations, which reduces to 1.6 standard deviations when taking into account the look-elsewhere effect. The data exclude the fermiophobic Higgs model in the ranges 110.0–118.0 GeV and 119.5–121.0 GeV at 95 % confidence level.

Original languageEnglish (US)
Article number2157
JournalEuropean Physical Journal C
Volume72
Issue number9
DOIs
StatePublished - 2012

Fingerprint

Bosons
Higgs bosons
Detectors
standard deviation
detectors
decay
Protons
protons
center of mass
Fermions
confidence
Colliding beam accelerators
fermions
luminosity
Luminance
collisions
energy
Experiments

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)
  • Engineering (miscellaneous)

Cite this

The ATLAS collaboration, Büscher, V., Crescioli, F., Haas, S., Mindur, B., & Nepomuceno, A. A. (2012). Search for a fermiophobic Higgs boson in the diphoton decay channel with the ATLAS detector. European Physical Journal C, 72(9), [2157]. https://doi.org/10.1140/epjc/s10052-012-2157-0

Search for a fermiophobic Higgs boson in the diphoton decay channel with the ATLAS detector. / The ATLAS collaboration; Büscher, V.; Crescioli, F.; Haas, S.; Mindur, B.; Nepomuceno, A. A.

In: European Physical Journal C, Vol. 72, No. 9, 2157, 2012.

Research output: Contribution to journalLetter

The ATLAS collaboration, Büscher, V, Crescioli, F, Haas, S, Mindur, B & Nepomuceno, AA 2012, 'Search for a fermiophobic Higgs boson in the diphoton decay channel with the ATLAS detector', European Physical Journal C, vol. 72, no. 9, 2157. https://doi.org/10.1140/epjc/s10052-012-2157-0
The ATLAS collaboration ; Büscher, V. ; Crescioli, F. ; Haas, S. ; Mindur, B. ; Nepomuceno, A. A. / Search for a fermiophobic Higgs boson in the diphoton decay channel with the ATLAS detector. In: European Physical Journal C. 2012 ; Vol. 72, No. 9.
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