Combined search for the standard model Higgs boson decaying to $b\bar{b}$ using the D0 run II data set

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Date

2012

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American Physical Society

Abstract

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 $b\bar{b}$ using the data sample collected with the D0 detector in $p\bar{p}$ collisions at $\sqrt s =\text{1.96 TeV}$ 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 $\text{100 GeV}\leq M_H \leq\text{150 GeV}$, and we exclude Higgs bosons with masses smaller than 102 GeV at the 95% C.L. In the mass range $\text{120 GeV}\leq M_H \leq\text{145 GeV}$, 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.

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Keywords

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

Citation

Abazov, V. M., Abbott, B., Acharya, B. S., Adams, M., Adams, T., Alexeev, G. D., . . . Zivkovic, L. (2012). Combined search for the standard model higgs boson decaying to $b\bar{b}$ using the D0 run II data set. Physical Review Letters, 109(12),121802. http://dx.doi.org/10.1103/PhysRevLett.109.121802

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© 2012 American Physical Society.

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Article