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Search for exclusive Higgs and Z boson decays to ϕγ and ργ with the ATLAS detector
LPTPM, Oujda, Morocco;Univ Mohamed Premier, Fac Sci, Oujda, Morocco.
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, High Energy Physics.ORCID iD: 0000-0002-1253-8583
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, High Energy Physics. Georg August Univ, Phys Inst 2, Gottingen, Germany.
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, High Energy Physics.
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Number of Authors: 28832018 (English)In: Journal of High Energy Physics (JHEP), ISSN 1126-6708, E-ISSN 1029-8479, no 7, article id 127Article in journal (Refereed) Published
Abstract [en]

A search for the exclusive decays of the Higgs and Z bosons to a phi or rho meson and a photon is performed with a pp collision data sample corresponding to an integrated luminosity of up to 35.6 fb(-1) collected at root s = 13 TeV with the ATLAS detector at the CERN Large Hadron Collider. These decays have been suggested as a probe of the Higgs boson couplings to light quarks. No significant excess of events is observed above the background, as expected from the Standard Model. Upper limits at 95% confidence level were obtained on the branching fractions of the Higgs boson decays to phi gamma and rho gamma of 4.8 x 10(-4) and 8.8 x 10(-4), respectively. The corresponding 95% confidence level upper limits for the Z boson decays are 0.9 x 10(-6) and 25 x 10(-6) for phi gamma and rho gamma, respectively.

Place, publisher, year, edition, pages
2018. no 7, article id 127
Keywords [en]
Hadron-Hadron scattering (experiments), Higgs physics
National Category
Subatomic Physics
Identifiers
URN: urn:nbn:se:uu:diva-362006DOI: 10.1007/JHEP07(2018)127ISI: 000439527200001OAI: oai:DiVA.org:uu-362006DiVA, id: diva2:1253100
Funder
Swedish Research CouncilEU, European Research CouncilEU, FP7, Seventh Framework ProgrammeEU, Horizon 2020
Note

For complete list of authors see http://dx.doi.org/10.1007/JHEP07(2018)127. Title in WoS: Search for exclusive Higgs and Z boson decays to phi gamma and rho gamma with the ATLAS detector

Available from: 2018-10-03 Created: 2018-10-03 Last updated: 2018-10-03Bibliographically approved

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Bergeås Kuutmann, ElinBokan, PetarBrenner, RichardEkelöf, TordEllert, MattiasFerrari, ArnaudGradin, P. O. JoakimIsacson, MaxMårtensson, MikaelÖhman, HenrikRangel Smith, CamilaSales De Bruin, Pedro
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