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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
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2012 (English)In: Physical Review Letters, ISSN 0031-9007, E-ISSN 1079-7114, Vol. 109, no 7, 071804- p.Article in journal (Refereed) Published
Abstract [en]

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 p (p) over bar collisions at root 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/c(2). 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/c(2). 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.

Place, publisher, year, edition, pages
2012. Vol. 109, no 7, 071804- p.
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Physical Sciences
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URN: urn:nbn:se:uu:diva-181407DOI: 10.1103/PhysRevLett.109.071804ISI: 000307503800001OAI: oai:DiVA.org:uu-181407DiVA: diva2:557651
Available from: 2012-09-28 Created: 2012-09-24 Last updated: 2017-12-07Bibliographically approved

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Buszello, Claus P.

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