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Search for the Higgs Boson in Events with Missing Transverse Energy and b Quark Jets Produced in pp¯ Collisions at s=1.96TeV

T. Aaltonen et al. (CDF Collaboration)
Phys. Rev. Lett. 100, 211801 – Published 28 May 2008

Abstract

We search for the standard model Higgs boson produced in association with an electroweak vector boson in events with no identified charged leptons, large imbalance in transverse momentum, and two jets where at least one contains a secondary vertex consistent with the decay of b hadrons. We use 1fb1 integrated luminosity of pp¯ collisions at s=1.96TeV recorded by the Collider Detector at Fermilab II experiment at the Tevatron. We find 268 (16) single (double) b-tagged candidate events, where 248±43 (14.4±2.7) are expected from standard model background processes. We observe no significant excess over the expected background and thus set 95% confidence level upper limits on the Higgs boson production cross section for several Higgs boson masses ranging from 110 to 140GeV/c2. For a mass of 115GeV/c2, the observed (expected) limit is 20.4 (14.2) times the standard model prediction.

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  • Received 11 February 2008

DOI:https://doi.org/10.1103/PhysRevLett.100.211801

©2008 American Physical Society

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Vol. 100, Iss. 21 — 30 May 2008

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