Improved Search for a Higgs Boson Produced in Association with Z-]l+l- in Proton Antiproton Collisions at Sqrt(s)
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Author | : |
Publisher | : |
Total Pages | : 7 |
Release | : 2010 |
ISBN-10 | : OCLC:727270492 |
ISBN-13 | : |
Rating | : 4/5 (92 Downloads) |
Book Synopsis Improved Search for a Higgs Boson Produced in Association with Z-]l+l- in Proton Antiproton Collisions at Sqrt(s) by :
Book excerpt: We present a search for the standard model Higgs boson produced with a Z boson in 4.1 fb−1 of data 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 times the H --> b{bar b} branching ratio. Improved analysis methods enhance signal sensitivity by 20% relative to previous searches beyond the gain due to the larger data sample. At a Higgs boson mass of 115 GeV/c2 we set a limit of 5.9 times the standard model value.