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1811080800990396416
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MIT
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| description |
A search for a Higgs boson decaying into a Z boson and a photon is described. The analysis is performed using proton-proton collision datasets recorded by the CMS detector at the LHC. Events were collected at center-of-mass energies of 7 TeV and 8 TeV, corresponding to integrated luminosities of 5.0fb-1 and 19.6fb-1, respectively. The selected events are required to have opposite-sign electron or muon pairs. No excess above standard model predictions has been found in the 120-160 GeV mass range and the first limits on the Higgs boson production cross section times the H→Zγ branching fraction at the LHC have been derived. The observed at 95% confidence level limits are between about 4 and 25 times the standard model cross section times the branching fraction. For a standard model Higgs boson mass of 125 GeV the expected limit at the 95% confidence level is 10 and the observed limit is 9.5. Models predicting the Higgs boson production cross section times the H→Zγ branching fraction to be larger than one order of magnitude of the standard model prediction are excluded for most of the 125-157 GeV mass range. © 2013 CERN.
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2024-09-23T11:37:04Z
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Article
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mit-1721.1/133870
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Massachusetts Institute of Technology
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| language |
English
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| last_indexed |
2024-09-23T11:37:04Z
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| publishDate |
2021
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Elsevier BV
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dspace
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| spelling |
mit-1721.1/1338702022-09-27T20:46:42Z Search for a Higgs boson decaying into a Z and a photon in pp collisions at √ s = 7 and 8 TeV A search for a Higgs boson decaying into a Z boson and a photon is described. The analysis is performed using proton-proton collision datasets recorded by the CMS detector at the LHC. Events were collected at center-of-mass energies of 7 TeV and 8 TeV, corresponding to integrated luminosities of 5.0fb-1 and 19.6fb-1, respectively. The selected events are required to have opposite-sign electron or muon pairs. No excess above standard model predictions has been found in the 120-160 GeV mass range and the first limits on the Higgs boson production cross section times the H→Zγ branching fraction at the LHC have been derived. The observed at 95% confidence level limits are between about 4 and 25 times the standard model cross section times the branching fraction. For a standard model Higgs boson mass of 125 GeV the expected limit at the 95% confidence level is 10 and the observed limit is 9.5. Models predicting the Higgs boson production cross section times the H→Zγ branching fraction to be larger than one order of magnitude of the standard model prediction are excluded for most of the 125-157 GeV mass range. © 2013 CERN. 2021-10-27T19:57:03Z 2021-10-27T19:57:03Z 2013 2019-05-03T14:05:32Z Article http://purl.org/eprint/type/JournalArticle https://hdl.handle.net/1721.1/133870 Chatrchyan, S., et al. "Search for a Higgs Boson Decaying into a Z and a Photon in Pp Collisions at vS=7 and 8tev." Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics 726 4-5 (2013): 587-609. en 10.1016/J.PHYSLETB.2013.09.057 Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics Creative Commons Attribution 3.0 unported license https://creativecommons.org/licenses/by/3.0/ application/pdf Elsevier BV Elsevier
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| spellingShingle |
Search for a Higgs boson decaying into a Z and a photon in pp collisions at √ s = 7 and 8 TeV
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| title |
Search for a Higgs boson decaying into a Z and a photon in pp collisions at √ s = 7 and 8 TeV
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| title_full |
Search for a Higgs boson decaying into a Z and a photon in pp collisions at √ s = 7 and 8 TeV
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| title_fullStr |
Search for a Higgs boson decaying into a Z and a photon in pp collisions at √ s = 7 and 8 TeV
|
| title_full_unstemmed |
Search for a Higgs boson decaying into a Z and a photon in pp collisions at √ s = 7 and 8 TeV
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| title_short |
Search for a Higgs boson decaying into a Z and a photon in pp collisions at √ s = 7 and 8 TeV
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| title_sort |
search for a higgs boson decaying into a z and a photon in pp collisions at √ s 7 and 8 tev
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| url |
https://hdl.handle.net/1721.1/133870
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