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Search for new particles in an extended Higgs sector with four b quarks in the final state at sqrt(s) = 13 TeVстатья
Статья опубликована в высокорейтинговом журнале
Статья опубликована в журнале из списка Web of Science и/или Scopus- Авторы: Belyaev A.V., Boos E., Bunichev V., Dubinin M., Dudko L., Ershov A.A., Gribushin A., Klyukhin V., Kodolova O., Lokhtin I., Obraztsov S., Perfilov M., Savrin V., CMS Collaboration
- Журнал: Physics Letters B
- Том: 835
- Год издания: 2022
- Издательство: Elsevier BV
- Местоположение издательства: Netherlands
- Первая страница: 137566
- DOI: 10.1016/j.physletb.2022.137566
- Аннотация: A search for an extended Higgs sector, characterized by a massive resonance X decaying to a pair of spin-0 bosons ϕ that themselves decay to pairs of bottom quarks, is presented. The analysis is restricted to the mass ranges mϕ from 25 to 100 GeV and mX from 1 to 3 TeV. For these mass ranges, the decay products of each ϕ boson are expected to merge into a single large-radius jet. Jet substructure and flavor identification techniques are used to identify these jets. The search is based on CERN LHC proton-proton collision data at s√= 13 TeV, collected with the CMS detector in 2016-2018, corresponding to an integrated luminosity of 138 fb−1. Model-specific limits are set on the product of the production cross section and branching fraction for X → ϕϕ → (bb¯)(bb¯) as a function of mass, where both the X → ϕϕ and ϕ → bb¯ branching fractions are assumed to be 100%. These limits are the first of their kind on this process, ranging between 30 and 1 fb at 95% confidence level for the considered mass ranges.
- Добавил в систему: Лохтин Игорь Петрович