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Improved Search for a Higgs Boson Produced in Association with Z→l+l- in pp̅ Collisions at √s=1.96  TeV

Author(s)
Gomez-Ceballos, Guillelmo; Goncharov, Maxim; Makhoul, Khaldoun; Paus, Christoph M. E.; Bauer, Gerry P
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Alternative title
Improved Search for a Higgs Boson Produced in Association with Z→l+l- in pp̅ Collisions at √s=1.96  [square root of s=1.96] TeV
Terms of use
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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Abstract
We search for the standard model Higgs boson produced with a Z boson in 4.1  fb-1 [fb superscript -1] of integrated luminosity collected with the CDF II detector at the Tevatron. In events consistent with the decay of the Higgs boson to a bottom-quark pair and the Z boson to electrons or muons, we set 95% credibility level upper limits on the ZH production cross section multiplied by the H→bb̅ branching ratio. Improved analysis methods enhance signal sensitivity by 20% relative to previous searches. At a Higgs boson mass of 115  GeV/c2 [GeV/c superscript 2] we set a limit of 5.9 times the standard model cross section.
Date issued
2010-12
URI
http://hdl.handle.net/1721.1/64776
Department
Massachusetts Institute of Technology. Department of Physics; Massachusetts Institute of Technology. Laboratory for Nuclear Science
Journal
Physical review letters
Publisher
American Physical Society
Citation
Aaltonen, T. et al. “Improved Search for a Higgs Boson Produced in Association with Z→l^{+}l^{-} in Pp[over ¯] Collisions at Sqrt[s]=1.96  TeV.” Physical Review Letters 105.25 (2010) : n. pag. © 2010 The American Physical Society
Version: Final published version
ISSN
0031-9007

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