Ferrando, E. (2025) Search for rare decays of the Higgs and Z bosons to ϕγ and ργ at the CMS experiment. Il nuovo cimento C, 48 (3). pp. 1-6. ISSN 1826-9885
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Abstract
Higgs and Z boson decays into a photon and a ρ(770) and φ(1020) meson are searched for using proton-proton collision data collected by the CMS experiment at the LHC at CERN, at √s = 13 TeV. Events are selected in which the mesons decay into pairs of charged pions and pairs of charged kaons respectively. The analysed data sets correspond to an integrated luminosity of 40 fb−1. No significant excess above the background expectations is observed in any search channel. Upper limits at the 95% confidence level on the Higgs boson branching fractions into ρ(770) and φ(1020) are determined to be 3.74 × 10−4 and 2.97×10−4 respectively. These results constitute the most stringent experimental limits to date on the afore-mentioned decay channels. Expected upper limits on the Z boson branching ratios are 6.56 × 10−6 and 2.21×10−6 for the ρ(770) and φ(1020) channels respectively.
| Item Type: | Article |
|---|---|
| Subjects: | 500 Scienze naturali e Matematica > 530 Fisica |
| Depositing User: | Marina Spanti |
| Date Deposited: | 10 Jul 2025 14:25 |
| Last Modified: | 10 Jul 2025 14:25 |
| URI: | http://eprints.bice.rm.cnr.it/id/eprint/23640 |
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