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DC Field | Value | Language |
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dc.contributor.author | Collaboration, CMS | - |
dc.date.accessioned | 2020-11-20T15:44:07Z | - |
dc.date.available | 2020-11-20T15:44:07Z | - |
dc.date.issued | 2020-11-10 | - |
dc.identifier | http://arxiv.org/abs/2007.05122v1 | - |
dc.identifier | http://arxiv.org/abs/2007.05122v1 | - |
dc.identifier.citation | The CMS collaboration., Sirunyan, A.M., Tumasyan, A. et al. Search for decays of the 125 GeV Higgs boson into a Z boson and a ρ or ϕ meson. J. High Energ. Phys. 2020, 39 (2020). | en_US |
dc.identifier.issn | 1029-8479 | - |
dc.identifier.uri | http://bura.brunel.ac.uk/handle/2438/21864 | - |
dc.description.abstract | Decays of the 125 GeV Higgs boson into a Z boson and a ρ0(770) or ϕ(1020) meson are searched for using proton-proton collision data collected by the CMS experiment at the LHC at s√ = 13 TeV. The analysed data set corresponds to an integrated luminosity of 137 fb−1. Events are selected in which the Z boson decays into a pair of electrons or a pair of muons, and the ρ and ϕ mesons decay into pairs of pions and kaons, respectively. No significant excess above the background model is observed. As different polarization states are possible for the decay products of the Z boson and ρ or ϕ mesons, affecting the signal acceptance, scenarios in which the decays are longitudinally or transversely polarized are considered. Upper limits at the 95% confidence level on the Higgs boson branching fractions into Zρ and Zϕ are determined to be 1.04–1.31% and 0.31–0.40%, respectively, where the ranges reflect the considered polarization scenarios; these values are 740–940 and 730–950 times larger than the respective standard model expectations. These results constitute the first experimental limits on the two decay channels. | en_US |
dc.description.sponsorship | STFC; Marie-Curie programme; European Research Council and Horizon 2020 Grant | en_US |
dc.language.iso | en | en_US |
dc.publisher | Springer | en_US |
dc.subject | Hadron-Hadron scattering (experiments) | en_US |
dc.subject | Higgs physics | en_US |
dc.subject | Particle and resonance production | en_US |
dc.title | Search for decays of the 125 GeV Higgs boson into a Z boson and a $ρ$ or $φ$ meson | en_US |
dc.type | Article | en_US |
pubs.notes | Submitted to JHEP. All figures and tables can be found at http://cms-results.web.cern.ch/cms-results/public-results/publications/HIG-19-012 (CMS Public Pages) | - |
Appears in Collections: | Dept of Electronic and Electrical Engineering Research Papers |
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