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Search for the Higgs boson decays to a ρ0, ϕ, or K*0 meson and a photon in proton-proton collisions at √s = 13 TeVстатья Исследовательская статья
Статья опубликована в высокорейтинговом журнале
Статья опубликована в журнале из списка Web of Science и/или Scopus- Авторы: Boos E., Bunichev V., Dubinin M., Dudko L., Ershov A.A., Gribushin A., Klyukhin V., Kodolova O., Obraztsov S., Petrushanko S.V., Savrin V., Snigirev A., CMS Collaboration
- Журнал: Physics Letters B
- Том: 862
- Год издания: 2025
- Издательство: Elsevier BV
- Местоположение издательства: Netherlands
- Первая страница: 139296
- DOI: 10.1016/j.physletb.2025.139296
- Аннотация: Three rare decay processes of the Higgs boson to a ρ(770)0, φ(1020), or K∗(892)0 meson and a photon aresearched for using √𝑠 = 13 TeV proton-proton collision data collected by the CMS experiment at the LHC. Events are selected assuming the mesons decay into a pair of charged pions, a pair of charged kaons, or a charged kaon and pion, respectively. Depending on the Higgs boson production mode, different triggering and reconstruction techniques are adopted. The analyzed data sets correspond to integrated luminosities up to 138 fb^−1, depending on the reconstructed final state. After combining various data sets and categories, no significant excess above the background expectations is observed. Upper limits at 95% confidence level on the Higgs boson branching fractions into ρ(770)0 γ, φ(1020) γ, and K∗(892)0 γ are determined to be 3.7 × 10^−4, 3.0 × 10^−4, and 3.0 × 10^−4, respectively. In case of the ρ(770)0 γ and φ(1020) γ channels, these are the most stringent experimental limits to date.
- Добавил в систему: Клюхин Вячеслав Иванович
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