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

A search for a fermiophobic Higgs boson using diphoton events produced in proton-proton collisions at a centre-of-mass energy of s√=7 TeVs=7 TeV\sqrt{s}=7~\mbox{TeV} is performed using data corresponding to an integrated luminosity of 4.9 fb−1 collected by the ATLAS experiment at the Large Hadron Co...

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Main Authors: Aad, Georges (Author) , Anders, Christoph (Author) , Anders, Gabriel (Author) , Andrei, George Victor (Author) , Davygora, Yuriy (Author) , Dietzsch, Thorsten (Author) , Geweniger, Christoph (Author) , Hanke, Paul (Author) , Henke, Michael (Author) , Kasieczka, Gregor (Author) , Khomich, Andrei (Author) , Kluge, Eike-Erik (Author) , Kugel, Andreas (Author) , Lang, Valerie (Author) , Lendermann, Victor (Author) , Lepold, Florian (Author) , Männer, Reinhard (Author) , Meier, Karlheinz (Author) , Müller, Felix (Author) , Narayan, Rohin T. (Author) , Poddar, Sahill (Author) , Schätzel, Sebastian (Author) , Scharf, Veit (Author) , Schmitt, Sebastian (Author) , Schöning, André (Author) , Schroer, Nicolai (Author) , Schultz-Coulon, Hans-Christian (Author) , Stamen, Rainer (Author) , Wessels, Martin (Author)
Corporate Author: ATLAS Collaboration (Author)
Format: Article (Journal) Editorial
Language:English
Published: 19 September 2012
In: The European physical journal. C, Particles and fields
Year: 2012, Volume: 72, Issue: 9
ISSN:1434-6052
DOI:10.1140/epjc/s10052-012-2157-0
Online Access:Verlag, Volltext: http://dx.doi.org/10.1140/epjc/s10052-012-2157-0
Verlag, Volltext: https://doi.org/10.1140/epjc/s10052-012-2157-0
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Author Notes:The ATLAS Collaboration*
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Summary:A search for a fermiophobic Higgs boson using diphoton events produced in proton-proton collisions at a centre-of-mass energy of s√=7 TeVs=7 TeV\sqrt{s}=7~\mbox{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.
Item Description:Gesehen am 28.11.2018
The ATLAS Collaboration: G. Aad, C.F. Anders, G. Anders, V. Andrei, Y. Davygora, T.A. Dietzsch, C. Geweniger, P. Hanke, G. Kasieczka, A. Khomich, E.-E. Kluge, A. Kugel, V. Lendermann, R. Maenner, K. Meier, R. Narayan, S. Poddar, S. Schaetzel, V. Scharf, S. Schmitt, A. Schöning, N. Schroer, H.-C. Schultz-Coulon, R. Stamen, M. Wessels [und weitere]
Physical Description:Online Resource
ISSN:1434-6052
DOI:10.1140/epjc/s10052-012-2157-0

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