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.

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 / T., A., V. M., A., B., A., B. S., A., M., A., T., A., G. D., A., G., A., A., A., B. A., G., G., A., S., A., D., A., A., A., A., A., J., A., G., A., J. A., A., T., A., A., A., et al.. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - 109:7(2012), p. 071804. [10.1103/physrevlett.109.071804]

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

BAUCE, MATTEO;GIAGU, Stefano;IORI, Maurizio;MARGAROLI, Fabrizio;
2012

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 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.
2012
01 Pubblicazione su rivista::01a Articolo in rivista
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 / T., A., V. M., A., B., A., B. S., A., M., A., T., A., G. D., A., G., A., A., A., B. A., G., G., A., S., A., D., A., A., A., A., A., J., A., G., A., J. A., A., T., A., A., A., et al.. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - 109:7(2012), p. 071804. [10.1103/physrevlett.109.071804]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/491938
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