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A search for a Higgs boson in the four-lepton decay channel H→ZZ, with each Z boson decaying to an electron or muon pair, is reported. The search covers Higgs boson mass hypotheses in the range of 110100  GeV (with 13 below 160 GeV), while 67.1±6.0 (9.5±1.3) events are expected from background. The four-lepton mass distribution is consistent with the expectation of standard model background production of ZZ pairs. Upper limits at 95% confidence level exclude the standard model Higgs boson in the ranges of 134–158 GeV, 180–305 GeV, and 340–465 GeV. Small excesses of events are observed around masses of 119, 126, and 320 GeV, making the observed limits weaker than expected in the absence of a signal.

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Alver, Burak Han -  Bauer, Gerry P. -  Bendavid, Joshua L. -  Busza, Wit -  Butz, Erik M. -  Cali, Ivan Amos -  Chan, M. -  Dutta, Valentina -  Gomez -  Ceballos, Guillelmo -  Goncharov, Maxim -  Hahn, Kristian Allan -  Kim, Y. -  Klute, Markus -  Lee, Y. J. -  Li, W. -  Luckey, P. David, Jr. -  Ma, Teng -  Nahn, Steven -  Paus, Christoph M. E. -  Ralph, Duncan Kelley -  Roland, Christof E. -  Roland, Gunther M. -  Rudolph, M. -  Stephans, George S. F. -  Stoeckli, Fabian -  Sumorok, Konstanty C. -  Sung, Kevin Kai Hong -  Velicanu, Dragos Alexandru -  Wenger, Edward Allen -  Wolf, R. -  Wyslouch, Boleslaw -  Xie, Si -  Yang, M. -  Yilmaz, Yetkin -  Yoon, Andrew -  Zanetti, Marco - 

Id.: 55259056

Idioma: inglés (Estados Unidos)  - 

Versión: 1.0

Estado: Final

Tipo de recurso: Article  -  http://purl.org/eprint/type/JournalArticle  - 

Tipo de Interactividad: Expositivo

Nivel de Interactividad: muy bajo

Audiencia: Estudiante  -  Profesor  -  Autor  - 

Estructura: Atomic

Coste: no

Copyright: sí

: Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.

Requerimientos técnicos:  Browser: Any - 

Relación: [IsBasedOn] APS
[References] http://dx.doi.org/10.1103/PhysRevLett.108.111804
[References] Physical Review Letters

Fecha de contribución: 13-ago-2016


* 0031-9007
* 1079-7114
* Chatrchyan, S. et al. “Search for the Standard Model Higgs Boson in the Decay Channel H→ZZ→4l in Pp Collisions at Sqrt[s]=7  TeV.” Physical Review Letters 108.11 (2012): Web. 4 May 2012.

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