Search for light Higgs bosons from supersymmetric cascade decays in pp collisions at √s = 13 TeV

Belyaev, A.V.; Boos, E.; Bunichev, V.; Dubinin, M.; Dudko, L.; Gribushin, A.; Klyukhin, V.; Kodolova, O.; Obraztsov, S.; Perﬁlov, M.; Petrushanko, S.V.; Savrin, V.; CMS, C.

Статья опубликована в высокорейтинговом журнале

Информация о цитировании статьи получена из Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 20 февраля 2024 г.

Авторы: Belyaev A.V., Boos E., Bunichev V., Dubinin M., Dudko L., Gribushin A., Klyukhin V., Kodolova O., Obraztsov S., Perﬁlov M., Petrushanko S.V., Savrin V., CMS Collaboration
Журнал: European Physical Journal C
Том: 83
Год издания: 2023
Издательство: Springer Verlag
Местоположение издательства: Germany
Первая страница: 571
DOI: 10.1140/epjc/s10052-023-11581-0
Аннотация: A search is reported for pairs of light Higgs bosons (H_1) produced in supersymmetric cascade decays in final states with small missing transverse momentum. A data set of LHC pp collisions collected with the CMS detector at √s = 13 TeV and corresponding to an integrated luminosity of 138 fb−1 is used. The search targets events where both H_1 bosons decay into bb¯ pairs that are reconstructed as large-radius jets using substructure techniques. No evidence is found for an excess of events beyond the background expectations of the standard model (SM). Results from the search are interpreted in the next-to-minimal supersymmetric extension of the SM, where a “singlino” of small mass leads to squark and gluino cascade decays that can predominantly end in a highly Lorentz-boosted singlet-like H_1 and a singlino-like neutralino of small transverse momentum. Upper limits are set on the product of the squark or gluino pair production cross section and the square of the bb¯ branching fraction of the H_1 in a benchmark model containing almost mass-degenerate gluinos and light-flavour squarks. Under the assumption of an SM-like H_1 → bb¯ branching fraction, H_1 bosons with masses in the range 40–120 GeV arising from the decays of squarks or gluinos with a mass of 1200–2500 GeV are excluded at 95% confidence level.
Добавил в систему: Клюхин Вячеслав Иванович

	ИСТИНА	Войти в систему Регистрация
	ФНКЦ РР
	Главная Поиск Статистика О проекте Помощь

ИСТИНА

ФНКЦ РР

Search for light Higgs bosons from supersymmetric cascade decays in pp collisions at √s = 13 TeVстатья Исследовательская статья

Прикрепленные файлы