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Search for a narrow, spin-2 resonance decaying to a pair of Z bosons in the q qbar l+ l- final stateстатья
Статья опубликована в высокорейтинговом журнале
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 19 июля 2013 г.
- Авторы: Belyaev A., Boos E., Bunichev V., Dubinin M., Dudko L., Ershov A., Gribushin A., Katkov I., Klyukhin V., Kodolova O., Lokhtin I., Markina A., Obraztsov S., Perfilov M., Petrushanko S., Popov A.A., Sarycheva L., Savrin V., CMS Collaboration
- Журнал: Physics Letters B
- Том: 718
- Номер: 4-5
- Год издания: 2013
- Издательство: Elsevier BV
- Местоположение издательства: Netherlands
- Первая страница: 1208
- Последняя страница: 1228
- DOI: 10.1016/j.physletb.2012.11.063
- Аннотация: Results are presented from a search for a narrow, spin-2 resonance decaying into a pair of Z bosons, with one Z-boson decaying into leptons (e+e- or mu+mu-) and the other into jets. An example of such a resonance is the Kaluza--Klein graviton, G[KK], predicted in Randall--Sundrum models. The analysis is based on a 4.9 inverse femtobarn sample of proton-proton collisions at a center-of-mass energy of 7 TeV, collected with the CMS detector at the LHC. Kinematic and topological properties, including decay angular distributions as a novel feature of the analysis, are used to discriminate between signal and background. No evidence for a resonance is observed, and upper limits on the production cross sections times branching fractions are set. In two models that predict Z-boson spin correlations in graviton decays, graviton masses are excluded lower than a value which varies between 610 and 945 GeV, depending on the model and the strength of the graviton couplings.
- Добавил в систему: Лохтин Игорь Петрович