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

Bertram, Iain and Collaboration, D0 and Collaboration, CDF and Borissov, Guennadi and Fox, Harald and Ross, Anthony and Williams, Mark and Ratoff, Peter (2012) 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. Physical review letters, 109 (7). ISSN 1079-7114

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Abstract

We 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 pp̅ collisions at √s=1.96  TeV, correspond to integrated luminosities of up to 9.7  fb-1. The searches are conducted for a Higgs boson with mass in the range 100–150  GeV/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 135  GeV/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.

Item Type:
Journal Article
Journal or Publication Title:
Physical review letters
Additional Information:
© 2012 American Physical Society
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/3100
Subjects:
ID Code:
63434
Deposited By:
Deposited On:
19 Apr 2013 09:29
Refereed?:
Yes
Published?:
Published
Last Modified:
02 Jul 2020 01:02