Search for the Higgs boson decays to a ρ0, ϕ, or K*0 meson and a photon in proton-proton collisions at √s = 13 TeV

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, C.

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

	ИСТИНА	Войти в систему Регистрация
	ИСТИНА ИНХС РАН
	Главная Поиск Статистика О проекте Помощь

ИСТИНА

ИСТИНА ИНХС РАН

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

Прикрепленные файлы