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Combined Tevatron upper limit on gg -> H -> W+W- and constraints on the Higgs boson mass in fourth-generation fermion models
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, High Energy Physics.
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, High Energy Physics.
2010 (English)In: Physical Review D, ISSN 1550-7998, Vol. 82, no 1, 011102- p.Article in journal (Refereed) Published
Abstract [en]

We combine results from searches by the CDF and D0 collaborations for a standard model Higgs boson (H) in the process gg -> H -> W+W- in p (p) over bar collisions at the Fermilab Tevatron Collider at root s = 1.96 TeV. With 4.8 fb(-1) of integrated luminosity analyzed at CDF and 5.4 fb(-1) at D0, the 95% confidence level upper limit on sigma(gg -> H) x B(H -> W+W-) is 1.75 pb at m(H) = 120 GeV, 0.38 pb at m(H) = 165 GeV, and 0.83 pb at m(H) = 200 GeV. Assuming the presence of a fourth sequential generation of fermions with large masses, we exclude at the 95% confidence level a standard-model-like Higgs boson with a mass between 131 and 204 GeV.

Place, publisher, year, edition, pages
2010. Vol. 82, no 1, 011102- p.
Keyword [en]
baryon number, gauge boson, physics
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:uu:diva-139006DOI: 10.1103/PhysRevD.82.011102ISI: 000279941600001OAI: oai:DiVA.org:uu-139006DiVA: diva2:380602
Note
For complete list of authors see http://prd.aps.org/abstract/PRD/v82/i1/e011102Available from: 2010-12-21 Created: 2010-12-21Bibliographically approved

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