dc.contributor.author | Baringer, Philip S. | |
dc.contributor.author | Bean, Alice | |
dc.contributor.author | Murray, Michael J. | |
dc.contributor.author | Sanders, Stephen J. | |
dc.contributor.author | CMS Collaboration | |
dc.date.accessioned | 2016-11-21T21:30:34Z | |
dc.date.available | 2016-11-21T21:30:34Z | |
dc.date.issued | 2015-03-26 | |
dc.identifier.citation | CMS collaboration. (2015). Search for a standard model-like Higgs boson in the μ+ μ− and e+ e− decay channels at the LHC. Physics letters B, 744, 184-207. | en_US |
dc.identifier.uri | http://hdl.handle.net/1808/22045 | |
dc.description.abstract | A search is presented for a standard model-like Higgs boson decaying to the μ+μ−μ+μ− or e+e−e+e− final states based on proton–proton collisions recorded by the CMS experiment at the CERN LHC. The data correspond to integrated luminosities of 5.0 fb−1 at a centre-of-mass energy of 7 TeV and 19.7 fb−1 at 8 TeV for the μ+μ−μ+μ− search, and of 19.7 fb−1 at 8 TeV for the e+e−e+e− search. Upper limits on the production cross section times branching fraction at the 95% confidence level are reported for Higgs boson masses in the range from 120 to 150 GeV. For a Higgs boson with a mass of 125 GeV decaying to μ+μ−μ+μ−, the observed (expected) upper limit on the production rate is found to be 7.4 (View the MathML source6.5−1.9+2.8) times the standard model value. This corresponds to an upper limit on the branching fraction of 0.0016. Similarly, for e+e−e+e−, an upper limit of 0.0019 is placed on the branching fraction, which is ≈3.7×105≈3.7×105 times the standard model value. These results, together with recent evidence of the 125 GeV boson coupling to τ-leptons with a larger branching fraction consistent with the standard model, confirm that the leptonic couplings of the new boson are not flavour-universal. | en_US |
dc.publisher | Elsevier | en_US |
dc.rights | © 2015 CERN for the benefit of the CMS Collaboration. Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). Funded by SCOAP3. | en_US |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | |
dc.subject | CMS | en_US |
dc.subject | Physics | en_US |
dc.subject | Higgs | en_US |
dc.subject | Lepton | en_US |
dc.subject | Muon | en_US |
dc.subject | Electron | en_US |
dc.subject | Dilepton | en_US |
dc.subject | Dimuon | en_US |
dc.subject | Dielectron | en_US |
dc.subject | Higgs boson | en_US |
dc.title | Search for a standard model-like Higgs boson in the μ+μ−μ+μ− and e+e−e+e− decay channels at the LHC | en_US |
dc.type | Article | en_US |
kusw.kuauthor | Baringer, Philip S. | |
kusw.kuauthor | Bean, Alice | |
kusw.kuauthor | Murray, Michael J. | |
kusw.kuauthor | Sanders, Stephen J. | |
kusw.kudepartment | Physics and Astronomy | en_US |
dc.identifier.doi | 10.1016/j.physletb.2015.03.048 | en_US |
kusw.oaversion | Scholarly/refereed, publisher version | en_US |
kusw.oapolicy | This item meets KU Open Access policy criteria. | en_US |
dc.rights.accessrights | openAccess | |