Search for dark QCD with emerging jets in proton-proton collisions at √s = 13 TeV

Belyaev, A.V.; 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: Belyaev A.V., 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: Journal of High Energy Physics
Том: 2024
Номер: 07
Год издания: 2024
Издательство: IOP Publishing
Местоположение издательства: [Bristol, UK], England
Первая страница: 142
DOI: 10.1007/JHEP07(2024)142
Аннотация: A search for “emerging jets” produced in proton-proton collisions at a center-of-mass energy of 13 TeV is performed using data collected by the CMS experiment corresponding to an integrated luminosity of 138 fb−1. This search examines a hypothetical dark quantum chromodynamics (QCD) sector that couples to the standard model (SM) through a scalar mediator. The scalar mediator decays into an SM quark and a dark sector quark. As the dark sector quark showers and hadronizes, it produces long-lived dark mesons that subsequently decay into SM particles, resulting in a jet, known as an emerging jet, with multiple displaced vertices. This search looks for pair production of the scalar mediator at the LHC, which yields events with two SM jets and two emerging jets at leading order. The results are interpreted using two dark sector models with different flavor structures, and exclude mediator masses up to 1950 (1950) GeV for an unflavored (flavor-aligned) dark QCD model. The unflavored results surpass a previous search for emerging jets by setting the most stringent mediator mass exclusion limits to date, while the flavor-aligned results provide the first direct mediator mass exclusion 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 dark QCD with emerging jets in proton-proton collisions at √s = 13 TeVстатья Исследовательская статья

Прикрепленные файлы