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Search for a light pseudoscalar Higgs boson in the dimuon decay channel in pp collisions at vs=7TeV

Abstract: The dimuon invariant mass spectrum is searched in the range between 5.5 and 14 GeV for a light pseudoscalar Higgs boson a, predicted in a number of new physics models, including the next-to-minimal supersymmetric standard model. The data sample used in the search corresponds to an integrated luminosity of 1:3 fb1 collected in pp collisions at ffiffi s p ¼ 7 TeV with the CMS detector at the LHC. No excess is observed above the background predictions and upper limits are set on the cross section times branching fraction  Bðpp ! a ! þÞ in the range of 1.5?7.5 pb. These results improve on existing bounds on the abb coupling for ma < mð1SÞ and are the first significant limits for ma > mð3SÞ. Constraints on the supersymmetric parameter space are presented in the context of the next-to-minimal model.

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., Hörmann N., Hrubec J., Jeitler M., Kiesenhofer W., Knünz V., Krammer M., Liko D., Mikulec I., Pernicka M., Rahbaran B., Rohringer C., Rohringer H., Schöfbeck R., Strauss J., Taurok A., Wagner P., Waltenberger W., Walzel G., Widl E., Wulz C.E., Mossolov V., Shumeiko N.,

 Fuente: Physical Review Letters (2012) Volume 109, Issue 12, article number 121801

Editorial: American Physical Society

 Fecha de publicación: 01/09/2012

Nº de páginas: 15

Tipo de publicación: Artículo de Revista

 DOI: 10.1103/PhysRevLett.109.121801

ISSN: 0031-9007,1079-7114

Url de la publicación: https://doi.org/10.1103/PhysRevLett.109.121801

Autores/as

CHATRCHYAN, S.

SHANHUEI CHUANG

MARTA FELCINI

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