Search for Higgs boson decays to a photon and a Z boson in pp collisions at √s=7 and 8 TeV with the ATLAS detector
| Data(s) |
2014
|
|---|---|
| Resumo |
A search is reported for a neutral Higgs boson in the decay channel H → Zγ, Z → ℓ+ℓ− (ℓ = e, μ), using 4.5 fb−1 of pp collisions at √s = 7 TeV and 20.3 fb−1 of pp collisions at √s = 8 TeV, recorded by the ATLAS detector at the CERN Large Hadron Collider. The observed distribution of the invariantmass of the three final-state particles, mℓℓγ, is consistent with the Standard Model hypothesis in the investigated mass range of 120–150 GeV. For a Higgs boson with a mass of 125.5 GeV, the observed upper limit at the 95% confidence level is 11 times the Standard Model expectation. Upper limits are set on the cross section times branching ratio of a neutral Higgs boson with mass in the range 120–150 GeV between 0.13 and 0.5 pb for √s = 8 TeV at 95% confidence level. |
| Formato |
application/pdf application/pdf |
| Identificador |
http://boris.unibe.ch/68723/1/1402.3051v1.pdf http://boris.unibe.ch/68723/8/1-s2.0-S0370269314001713-main.pdf Agustoni, Marco; Beck, Hans Peter; Cervelli, Alberto; Ereditato, Antonio; Gallo, Valentina; Haug, Sigve; Kruker, Tobias; Marti, Lukas; Schneider, Basil; Sciacca, Gianfranco; Stramaglia, Maria; Stucci, Stefania Antonia; Weber, Michael (2014). Search for Higgs boson decays to a photon and a Z boson in pp collisions at √s=7 and 8 TeV with the ATLAS detector. Physics letters. B, 732, pp. 8-27. Elsevier 10.1016/j.physletb.2014.03.015 <http://dx.doi.org/10.1016/j.physletb.2014.03.015> doi:10.7892/boris.68723 info:doi:10.1016/j.physletb.2014.03.015 urn:issn:0370-2693 |
| Idioma(s) |
eng |
| Publicador |
Elsevier |
| Relação |
http://boris.unibe.ch/68723/ |
| Direitos |
info:eu-repo/semantics/openAccess info:eu-repo/semantics/openAccess |
| Fonte |
Agustoni, Marco; Beck, Hans Peter; Cervelli, Alberto; Ereditato, Antonio; Gallo, Valentina; Haug, Sigve; Kruker, Tobias; Marti, Lukas; Schneider, Basil; Sciacca, Gianfranco; Stramaglia, Maria; Stucci, Stefania Antonia; Weber, Michael (2014). Search for Higgs boson decays to a photon and a Z boson in pp collisions at √s=7 and 8 TeV with the ATLAS detector. Physics letters. B, 732, pp. 8-27. Elsevier 10.1016/j.physletb.2014.03.015 <http://dx.doi.org/10.1016/j.physletb.2014.03.015> |
| Palavras-Chave | #530 Physics |
| Tipo |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion PeerReviewed |
