Пожалуйста, используйте этот идентификатор, чтобы цитировать или ссылаться на этот документ:
https://elib.bsu.by/handle/123456789/259034
Заглавие документа: | Search for third-generation scalar leptoquarks and heavy right-handed neutrinos in final states with two tau leptons and two jets in proton-proton collisions at √s=13 TeV |
Авторы: | Dvornikov, O. Makarenko, V. Mossolov, V. Gonzalez, Suarez J. Zykunov, V. Shumeiko, N. CMS Collaboration |
Тема: | ЭБ БГУ::ЕСТЕСТВЕННЫЕ И ТОЧНЫЕ НАУКИ::Физика |
Дата публикации: | 2017 |
Издатель: | Springer Verlag |
Библиографическое описание источника: | High Energy Phys 2017;2017(7). |
Аннотация: | A search is performed for third-generation scalar leptoquarks and heavy right-handed neutrinos in events containing one electron or muon, one hadronically decaying τ lepton, and at least two jets, using a s=13 TeV pp collision data sample corresponding to an integrated luminosity of 12.9 fb-1 collected with the CMS detector at the LHC in 2016. The number of observed events is found to be in agreement with the standard model prediction. A limit is set at 95% confidence level on the product of the leptoquark pair production cross section and β2, where β is the branching fraction of leptoquark decay to a τ lepton and a bottom quark. Assuming β = 1, third-generation leptoquarks with masses below 850 GeV are excluded at 95% confidence level. An additional search based on the same event topology involves heavy right-handed neutrinos, NR, and right-handed W bosons, WR, arising in a left-right symmetric extension of the standard model. In this search, WR bosons are assumed to decay to a tau lepton and NR followed by the decay of the NR to a tau lepton and an off-shell WR boson. Assuming the mass of the right-handed neutrino to be half of the mass of the right-handed W boson, WR boson masses below 2.9 TeV are excluded at 95% confidence level. These results improve on the limits from previous searches for third-generation leptoquarks and heavy right-handed neutrinos with τ leptons in the final state. |
URI документа: | https://elib.bsu.by/handle/123456789/259034 |
DOI документа: | 10.1007/JHEP07(2017)121 |
Scopus идентификатор документа: | 85026813548 |
Финансовая поддержка: | National Science Foundation (NSF) 1151640,1211067,1506130,1506168,1606321,1624356; Science and Technology Facilities Council (STFC) PP/E000479/1,ST/H000925/1 |
Располагается в коллекциях: | Статьи НИУ «Институт ядерных проблем» |
Полный текст документа:
Файл | Описание | Размер | Формат | |
---|---|---|---|---|
Sirunyan2017_Article_SearchForThird-generationScala.pdf | 576,21 kB | Adobe PDF | Открыть |
Все документы в Электронной библиотеке защищены авторским правом, все права сохранены.