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Title

Improved Search for a Higgs Boson Produced in Association with Z→l+l- in pp̅ Collisions at √s=1.96  TeV

AuthorsAaltonen, T.; Álvarez González, B.; Casal, Bruno ; Cuevas, Javier ; Gómez-Ceballos, Guillelmo; Fernández, Juan Pablo; Cabrera, Susana ; Gómez, G. ; Rodrigo, Teresa ; Ruiz Jimeno, Alberto ; Scodellaro, Luca ; Vila, Iván ; Vilar, Rocío ; CDF and D0 Collaborations
Issue Date13-Dec-2010
PublisherAmerican Physical Society
CitationPhysical Review Letters 105(25): 251802 (2010)
AbstractWe search for the standard model Higgs boson produced with a Z boson in 4: 1 fb(-1) of integrated luminosity collected with the CDF II detector at the Tevatron. In events consistent with the decay of the Higgs boson to a bottom-quark pair and the Z boson to electrons or muons, we set 95% credibility level upper limits on the ZH production cross section multiplied by the H -> b (b) over bar branching ratio. Improved analysis methods enhance signal sensitivity by 20% relative to previous searches. At a Higgs boson mass of 115 GeV/c(2) we set a limit of 5.9 times the standard model cross section.
Description7 páginas, 3 figuras, 2 tablas.-- CDF Collaboration: et al.
Publisher version (URL)http://dx.doi.org/10.1103/PhysRevLett.105.251802
URIhttp://hdl.handle.net/10261/40312
DOI10.1103/PhysRevLett.105.251802
ISSN0031-9007
Appears in Collections:(IFIC) Artículos
(IFCA) Artículos
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