Combined search for the standard model Higgs boson decaying to bb̄ using the D0 run II data set

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2012-09-20

Autores

Abazov, V. M.
Abbott, B.
Acharya, B. S.
Adams, M.
Adams, T.
Alexeev, G. D.
Alkhazov, G.
Alton, A.
Alverson, G.
Askew, A.

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Resumo

We present the results of the combination of searches for the standard model Higgs boson produced in association with a W or Z boson and decaying into bb̄ using the data sample collected with the D0 detector in pp̄ collisions at √s=1.96TeV at the Fermilab Tevatron Collider. We derive 95% C.L. upper limits on the Higgs boson cross section relative to the standard model prediction in the mass range 100GeV≤M H≤150GeV, and we exclude Higgs bosons with masses smaller than 102 GeV at the 95% C.L. In the mass range 120GeV≤M H≤145GeV, the data exhibit an excess above the background prediction with a global significance of 1.5 standard deviations, consistent with the expectation in the presence of a standard model Higgs boson. © 2012 American Physical Society.

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Palavras-chave

Background prediction, Cross section, Data sample, Data sets, Fermilab Tevatron collider, Higgs boson, Standard deviation, Standard-model Higgs bosons, The standard model, Upper limits, Z Bosons, Tellurium compounds, Bosons

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Physical Review Letters, v. 109, n. 12, 2012.