Search for a heavy resonance decaying into a Z and a Higgs boson in events with an energetic jet and two electrons, two muons, or missing transverse momentum 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.; Perfilov, M.; Petrushanko, S.V.; Savrin, V.; CMS, C.

Авторы: Boos E., Bunichev V., Dubinin M., Dudko L., Ershov A.A., Gribushin A., Klyukhin V., Kodolova O., Obraztsov S., Perfilov M., Petrushanko S.V., Savrin V., CMS Collaboration
Журнал: Journal of High Energy Physics
Том: 2025
Номер: 02
Год издания: 2025
Издательство: IOP Publishing
Местоположение издательства: [Bristol, UK], England
Первая страница: 089
DOI: 10.1007/JHEP02(2025)089
Аннотация: A search is presented for a heavy resonance decaying into a Z boson and a Higgs (H) boson. The analysis is based on data from proton-proton collisions at a centre-of-mass energy of 13 TeV corresponding to an integrated luminosity of 138 fb^−1, recorded with the CMS experiment in the years 2016–2018. Resonance masses between 1.4 and 5 TeV are considered, resulting in large transverse momenta of the Z and H bosons. Final states that result from Z boson decays to pairs of electrons, muons, or neutrinos are considered. The H boson is reconstructed as a single large-radius jet, recoiling against the Z boson. Machine-learning flavour-tagging techniques are employed to identify decays of a Lorentz-boosted H boson into pairs of charm or bottom quarks, or into four quarks via the intermediate H → WW∗ and ZZ∗ decays. The analysis targets H boson decays that were not generally included in previous searches using the H → bb¯ channel. Compared with previous analyses, the sensitivity for high resonance masses is improved significantly in the channel where at most one b quark is tagged.
Добавил в систему: Клюхин Вячеслав Иванович

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Search for a heavy resonance decaying into a Z and a Higgs boson in events with an energetic jet and two electrons, two muons, or missing transverse momentum in proton-proton collisions at √s = 13 TeVстатья Исследовательская статья

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