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Search for anomalous single top quark production in association with a photon in pp collisions at s√=8 TeV
dc.contributor.author | CMS Collaboration | |
dc.date.accessioned | 2017-10-10T16:20:00Z | |
dc.date.available | 2017-10-10T16:20:00Z | |
dc.date.issued | 2016-04-06 | |
dc.identifier.citation | The CMS collaboration, Khachatryan, V., Sirunyan, A.M. et al. J. High Energ. Phys. (2016) 2016: 35. https://doi.org/10.1007/JHEP04(2016)035 | en_US |
dc.identifier.uri | http://hdl.handle.net/1808/25105 | |
dc.description.abstract | The result of a search for flavor changing neutral currents (FCNC) through single top quark production in association with a photon is presented. The study is based on proton-proton collisions at a center-of-mass energy of 8 TeV using data collected with the CMS detector at the LHC, corresponding to an integrated luminosity of 19.8 fb−1. The search for tγ events where t → Wb and W → μν is conducted in final states with a muon, a photon, at least one hadronic jet with at most one being consistent with originating from a bottom quark, and missing transverse momentum. No evidence of single top quark production in association with a photon through a FCNC is observed. Upper limits at the 95% confidence level are set on the tuγ and tcγ anomalous couplings and translated into upper limits on the branching fraction of the FCNC top quark decays: ℬ(t → uγ) < 1.3 × 10− 4 and ℬ(t → cγ) < 1.7 × 10− 3. Upper limits are also set on the cross section of associated tγ production in a restricted phase-space region. These are the most stringent limits currently available. | en_US |
dc.publisher | Springer Verlag | en_US |
dc.rights | This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited. | en_US |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | en_US |
dc.subject | Flavour changing neutral currents | en_US |
dc.subject | Hadron-hadron scattering (experiments) | en_US |
dc.subject | Top physics | en_US |
dc.title | Search for anomalous single top quark production in association with a photon in pp collisions at s√=8 TeV | en_US |
dc.type | Article | en_US |
kusw.kudepartment | Physics and Astronomy | en_US |
dc.identifier.doi | 10.1007/JHEP04(2016)035 | 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 |