Search for long-lived particles decaying to e± μ∓μ∓ ν; The European Physical Journal C; Vol. 81, iss. 3

Search for long-lived particles decaying to e± μ∓μ∓ ν; The European Physical Journal C; Vol. 81, iss. 3

Dades bibliogràfiques
Parent link:The European Physical Journal C
Vol. 81, iss. 3.— 2021.— [261, 16 p.]
Autor corporatiu: Национальный исследовательский Томский политехнический университет Исследовательская школа физики высокоэнергетических процессов, Национальный исследовательский Томский политехнический университет Инженерная школа информационных технологий и робототехники
Altres autors: Aaij R. Roel, Beteta C. B. Carlos Abellan, Ackernley T., Adeva B. Bernardo, Eydelman S. I. Semen Isaakovich, Kharisova A. E. Anastasiya Evgenjevna, Panshin G. L. Gennady Leonidovich
Sumari:Title screen
Long-lived particles decaying to e±μ∓ν, with masses between 7 and 50GeV/c2 and lifetimes between 2 and 50ps, are searched for by looking at displaced vertices containing electrons and muons of opposite charges. The search is performed using 5.4fb−15.4fb−1 of pp pp collisions collected with the LHCb detector at a centre-of-mass energy of √s=13TeV. Three mechanisms of production of long-lived particles are considered: the direct pair production from quark interactions, the pair production from the decay of a Standard-Model-like Higgs boson with a mass of 125GeV/c2, and the charged current production from an on-shell WW boson with an additional lepton. No evidence of these long-lived states is obtained and upper limits on the production cross-section times branching fraction are set on the different production modes.
Idioma:anglès
Publicat: 2021
Matèries:
электронный ресурс
труды учёных ТПУ
Accés en línia:https://doi.org/10.1140/epjc/s10052-021-08994-0
Format: Electrònic Capítol de llibre
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=664725

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