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Search for the standard model Higgs boson decaying to bottom quarks in pp collisions at s=7 TeV

Abstract: A search for the standard model Higgs boson (H) decaying to bb when produced in association with weak vector bosons (V ) is reported for the following modes: W(??)H, W(e?)H, Z(??)H, Z(ee)H and Z(??)H. The search is performed in a data sample corresponding to an integrated luminosity of 4.7 fb?1, recorded by the CMS detector in proton?proton collisions at the LHC with a center-of-mass energy of 7 TeV. No significant excess of events above the expectation from background is observed. Upper limits on the V H production cross section times the H ? bb branching ratio, with respect to the expectations for a standard model Higgs boson, are derived for a Higgs boson in the mass range 110?135 GeV. In this range, the observed 95% confidence level upper limits vary from 3.4 to 7.5 times the standard model prediction; the corresponding expected limits vary from 2.7 to 6.7 times the standard model prediction.

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

Fuente: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 2012, 710(2), 284-306

Editorial: Elsevier

Fecha de publicación: 01/04/2012

Nº de páginas: 23

Tipo de publicación: Artículo de Revista

DOI: 10.1016/j.physletb.2012.02.085

ISSN: 0370-2693,1873-2445

Url de la publicación: https://doi.org/10.1016/j.physletb.2012.02.085

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