Пожалуйста, используйте этот идентификатор, чтобы цитировать или ссылаться на этот ресурс: http://earchive.tpu.ru/handle/11683/72505
Название: Search for singly and pair-produced leptoquarks coupling to third-generation fermions in proton-proton collisions at √s=13TeV
Авторы: Sirunyan, А. М.
Tumasyan, A. R.
Adam, Wolfgang
Tyurin, Nikolay Evgenjevich
Babaev, Anton Anatoljevich
Okhotnikov, Vitaly Vladimirovich
Sukhikh, Leonid Grigorievich
Ключевые слова: CMS; search for new physics; leptoquarks
Дата публикации: 2021
Издатель: Elsevier
Библиографическое описание: Search for singly and pair-produced leptoquarks coupling to third-generation fermions in proton-proton collisions at √s=13TeV / А. М. Sirunyan, A. R. Tumasyan, W. Adam [et al.] // Physics Letters B. — 2021. — Vol. 819. — [136446, 27 p.].
Аннотация: A search for leptoquarks produced singly and in pairs in proton-proton collisions is presented. We consider the leptoquark (LQ) to be a scalar particle of charge −1/3e coupling to a top quark plus a tau lepton (tτ) or a bottom quark plus a neutrino (bν), or a vector particle of charge +2/3e, coupling to tν or bτ. These choices are motivated by models that can explain a series of anomalies observed in the measurement of B meson decays. In this analysis the signatures tτνb and tτν are probed, using data recorded by the CMS experiment at the CERN LHC at √s =13 TeV and that correspond to an integrated luminosity of 137 fb−1. These signatures have not been previously explored in a dedicated search. The data are found to be in agreement with the standard model prediction. Lower limits at 95% confidence level are set on the LQ mass in the range 0.98-1.73 TeV, depending on the LQ spin and its coupling λ to a lepton and a quark, and assuming equal couplings for the two LQ decay modes considered. These are the most stringent constraints to date on the existence of leptoquarks in this scenario.
URI: http://earchive.tpu.ru/handle/11683/72505
Располагается в коллекциях:Репринты научных публикаций

Файлы этого ресурса:
Файл Описание РазмерФормат 
reprint-nw-38212.pdf1,34 MBAdobe PDFПросмотреть/Открыть


Все ресурсы в архиве электронных ресурсов защищены авторским правом, все права сохранены.