Abstract
We combine searches by the CDF and D0 Collaborations for the associated production of a Higgs boson with a or boson and subsequent decay of the Higgs boson to a bottom-antibottom quark pair. The data, originating from Fermilab Tevatron collisions at , correspond to integrated luminosities of up to . The searches are conducted for a Higgs boson with mass in the range . 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 . 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.
- Received 26 July 2012
DOI:https://doi.org/10.1103/PhysRevLett.109.071804
© 2012 American Physical Society
Viewpoint
A Fuller Picture of the Higgs Boson
Published 14 August 2012
Two collaborations at the Tevatron have combined data from their searches for the Higgs boson and report evidence of a new particle decaying into heavy quark pairs. This could be the first experimental evidence that the same mechanism that gives mass to the carriers of the weak force also underlies the mass of quarks.
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