dc.contributor.author | Sirunyan, A. M. | |
dc.contributor.author | Tumasyan, A. | |
dc.contributor.author | Adam, W. | |
dc.contributor.author | Ambrogi, F. | |
dc.contributor.author | Bergauer, T. | |
dc.contributor.author | Brandstetter, J. | |
dc.contributor.author | Özdemir, Kadri | |
dc.contributor.author | CMS Collaboration | |
dc.date.accessioned | 2021-06-05T20:00:46Z | |
dc.date.available | 2021-06-05T20:00:46Z | |
dc.date.issued | 2019 | |
dc.identifier.issn | 0370-2693 | |
dc.identifier.issn | 1873-2445 | |
dc.identifier.uri | https://doi.org/10.1016/j.physletb.2019.134811 | |
dc.identifier.uri | https://hdl.handle.net/20.500.12960/994 | |
dc.description | WOS:000488071200020 | en_US |
dc.description.abstract | A search for decays of the Higgs and Z boson to pairs of J/psi or Y(nS)(n = 1, 2, 3) mesons, with their subsequent decay to mu(+)mu(-) pairs, is presented. The analysis uses data from proton-proton collisions at root s = 13 TeV, collected with the CMS detector at the LHC in 2017 and corresponding to an integrated luminosity of 37.5 fb(-1). While an observation of such a decay with this sample would indicate the presence of physics beyond the standard model, no significant excess is observed. Upper limits at 95% confidence level are placed on the branching fractions of these decays. In the J/psi pair channel, the limits are 1.8 x 10(-3) and 2.2 x 10(-6) for the Higgs and Z boson, respectively, while in the combined Y(nS) pair channel, the limits are 1.4 x 10(-3) and 1.5 x 10(-6), respectively, when the mesons from the Higgs and Z boson decay are assumed to be unpolarized. When fully longitudinal and transverse polarizations are considered the limits reduce by about 22-29% and increase by about 10-13%, respectively. (C) 2019 The Author(s). Published by Elsevier B.V.<bold> </bold> | en_US |
dc.language.iso | eng | en_US |
dc.publisher | Elsevier | en_US |
dc.relation.ispartof | Physics Letters B | en_US |
dc.rights | info:eu-repo/semantics/openAccess | en_US |
dc.subject | CMS | en_US |
dc.subject | Standard Model Physics | en_US |
dc.subject | Higgs Boson | en_US |
dc.subject | Z Boson | en_US |
dc.subject | Rare Decays<Bold> | en_US |
dc.subject | </Bold> | en_US |
dc.title | Search for Higgs and Z boson decays to J/psi or Y pairs in the four-muon final state in proton-proton collisions at root s=13 TeV<bold> </bold> | en_US |
dc.type | article | en_US |
dc.authorid | 0000-0002-0103-1488 | |
dc.department | Mühendislik Fakültesi, Elektrik-Elektronik Mühendisliği Bölümü | en_US |
dc.contributor.institutionauthor | Özdemir, Kadri | |
dc.identifier.doi | 10.1016/j.physletb.2019.134811 | |
dc.identifier.volume | 797 | en_US |
dc.relation.publicationcategory | Makale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı | en_US |