Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.13091/4592
Title: Search for Higgs boson decays into Z and J/psi and for Higgs and Z boson decays into J/psi or Y pairs in pp collisions at root s=13 TeV
Authors: Tumasyan, A.
Adam, W.
Andrejkovic, J. W.
Bergauer, T.
Chatterjee, S.
Damanakis, K.
Vami, T. A.
Keywords: CMS
Standard model physics
Higgs boson
Z boson
Rare decays psi root
Parton Distributions
Quark Masses
Hierarchy
Issue Date: 2023
Publisher: Elsevier
Abstract: Decays of the Higgs boson into a Z boson and a J/& psi; or & psi;(2S) meson are searched for in four-lepton final states with the CMS detector at the LHC. A data set of proton-proton collisions corresponding to an integrated luminosity of 138 fb-1 is used. Using the same data set, decays of the Higgs and Z boson into quarkonium pairs are also searched for. An observation of such decays with this sample would indicate the presence of physics beyond the standard model. No evidence for these decays has been observed and upper limits at the 95% confidence level are placed on the corresponding branching fractions (B). Assuming longitudinal polarization of the Higgs boson decay products, 95% confidence level observed upper limits for B(H & RARR; ZJ/& psi;) and B(H & RARR; Z & psi;(2S)) are 1.9 x 10-3 and 6.6 x 10-3, respectively.& COPY; 2022 The Author(s). 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.
URI: https://doi.org/10.1016/j.physletb.2022.137534
https://hdl.handle.net/20.500.13091/4592
ISSN: 0370-2693
1873-2445
Appears in Collections:WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collections

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