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Title

Evidence for a particle produced in association with weak bosons and decaying to a bottom-antibottom quark pair in higgs boson searches at the tevatron

AuthorsAaltonen, T.; Álvarez González, B.; Casal, Bruno ; Cuevas, Javier ; Gómez, G. ; Ruiz Jimeno, Alberto ; Scodellaro, Luca ; Vila, Iván ; Vilar, Rocío ; Vizán, J. ; CDF and D0 Collaborations
Issue Date2012
PublisherAmerican Physical Society
CitationPhysical Review Letters 109: 071804 (2012)
AbstractWe combine searches by the CDF and D0 Collaborations for the associated production of a Higgs boson with a W or Z boson and subsequent decay of the Higgs boson to a bottom-antibottom quark pair. The data, originating from Fermilab Tevatron pp̄ collisions at √s=1.96TeV, correspond to integrated luminosities of up to 9.7fb -1. The searches are conducted for a Higgs boson with mass in the range 100-150GeV/c2. We observe an excess of events in the data compared with the background predictions, which is most significant in the mass range between 120 and 135GeV/c2. The largest local significance is 3.3 standard deviations, corresponding to a global significance of 3.1 standard deviations. We interpret this as evidence for the presence of a new particle consistent with the standard model Higgs boson, which is produced in association with a weak vector boson and decays to a bottom-antibottom quark pair. © 2012 American Physical Society.
DescriptionAaltonen, T. et al.
Publisher version (URL)http://dx.doi.org/10.1103/PhysRevLett.109.071804
URIhttp://hdl.handle.net/10261/108761
DOI10.1103/PhysRevLett.109.071804
Identifiersdoi: 10.1103/PhysRevLett.109.071804
issn: 0031-9007
e-issn: 1079-7114
Appears in Collections:(IFCA) Artículos
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