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Combined search for the Higgs boson with the D0 experiment
Baringer, Philip S. Bean, Alice Clutter, Justace Randall Abazov, V. M. Abbott, B. Acharya, B. S. Adams, M. Adams, T. Alexeev, G. D. Alkhazov, G.
Baringer, Philip S.
Bean, Alice
Clutter, Justace Randall
Abazov, V. M.
Abbott, B.
Acharya, B. S.
Adams, M.
Adams, T.
Alexeev, G. D.
Alkhazov, G.
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Abstract
We perform a combination of searches for standard model Higgs boson production in pp-bar collisions recorded by the D0 detector at the Fermilab Tevatron Collider at a center of mass energy of s√=1.96 TeV. The different production and decay channels have been analyzed separately, with integrated luminosities of up to 9.7 fb(−1) and for Higgs boson masses 90≤M(H)≤200 GeV. We combine these final states to achieve optimal sensitivity to the production of the Higgs boson. We also interpret the combination in terms of models with a fourth generation of fermions, and models with suppressed Higgs boson couplings to fermions. The result excludes a standard model Higgs boson at 95% C.L. in the ranges 90<M(H)<101 GeV and 157<M(H)<178 GeV, with an expected exclusion of 155<M(H)<175 GeV. In the range 120<M(H)<145 GeV, the data exhibit an excess over the expected background of up to 2 standard deviations, consistent with the presence of a standard model Higgs boson of mass 125 GeV.
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This is the publisher's version, also available electronically from http://journals.aps.org/prd/abstract/10.1103/PhysRevD.88.052011.
Date
2013-09-17
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American Physical Society
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V. M. Abazov et al. (D0 Collaboration). (2013). "Combined search for the Higgs boson with the D0 experiment." Physical Review D, 88(5):052011. http://www.dx.doi.org/10.1103/PhysRevD.88.052011.