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A search for excited leptons in pp collisions at s=7 TeV

Abstract: A search for excited leptons is carried out with the CMS detector at the LHC, using 36pb?1 of pp collision data recorded at s=7TeV. The search is performed for associated production of a lepton and an oppositely charged excited lepton ?pp????, followed by the decay ??????, resulting in the ??? final state, where ?=e,?. No excess of events above the standard model expectation is observed. Interpreting the findings in the context of ??? production through four-fermion contact interactions and subsequent decay via electroweak processes, first upper limits are reported for ??? production at this collision energy. The exclusion region in the compositeness scale ? and excited lepton mass ?M?? parameter space is extended beyond previously established limits. For ??=M??, excited lepton masses are excluded below 1070GeV/c2 for ?e? and 1090GeV/c2 for ??? at the 95% confidence level.

Otras publicaciones de la misma revista o congreso con autores/as de la Universidad de Cantabria

 Autoría: Chatrchyan S., Khachatryan V., Sirunyan A.M., Tumasyan A., Adam W., Bergauer T., Dragicevic M., Erö J., Fabjan C., Friedl M., Frühwirth R., Ghete V.M., Hammer J., Hänsel S., Hoch M., Hörmann N., Hrubec J., Jeitler M., Kiesenhofer W., Krammer M., Liko D., Mikulec I., Pernicka M., Rohringer H., Schöfbeck R., Strauss J., Taurok A., Teischinger F., Wagner P., Waltenberger W., Walzel G., Widl E., Wulz C.E., Mossolov V., Shumeiko N.,

 Fuente: Physics Letters, Section B, 2011, 704, 143-162

Editorial: Elsevier

 Año de publicación: 2011

Nº de páginas: 20

Tipo de publicación: Artículo de Revista

 DOI: 10.1016/j.physletb.2011.09.021

ISSN: 0370-2693,1873-2445

Url de la publicación: https://doi.org/10.1016/j.physletb.2011.09.021

Autores/as

SHANHUEI CHUANG

MARTA FELCINI

CLARA JORDA LOPE

PATRICIA LOBELLE PARDO

MARIA AMPARO LOPEZ VIRTO

RAFAEL JOSE MARCO DE LUCAS

FRANCISCA JAVIELA MUÑOZ SANCHEZ

ANA YAIZA RODRIGUEZ MARRERO

MARIA DEL MAR SOBRON SAÑUDO