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Standard model Higgs physics at a 4 TeV upgraded Fermilab Tevatron

Journal Article · · Physical Review, D (Particles Fields); (United States)
;  [1]
  1. Davis Institute for High Energy Physics, Department of Physics, University of California-Davis, Davis, California 95616 (United States)
We compute an array of standard model Higgs boson ([ital H]) signals and backgrounds for a possible upgrade of the Fermilab Tevatron to [radical][ital s] =4 TeV. Taking [ital m][sub [ital t]][ge]140 GeV, and assuming a total accumulated luminosity of [ital L]=30 fb[sup [minus]1], we find that a standard model Higgs boson with [ital m][sub [ital H]][approx lt]110 GeV could almost certainly be detected using the [ital W][sup [plus minus]][ital H][r arrow][ital l][nu][ital b[bar b]] mode. A Higgs boson with a mass between [similar to]120 GeV and [similar to]140 GeV or above [similar to]230--250 GeV almost certainly would not be seen. A Higgs boson with [ital m][sub [ital H]][similar to]150 GeV or 200[approx lt][ital m][sub [ital H]][approx lt]230--250 GeV has a decent chance of being detected in the [ital ZZ][r arrow]4[ital l] mode. There would also be some possibility of discovering the [ital H] in the [ital WW][r arrow][ital l][nu][ital jj] mode for 150[approx lt][ital m][sub [ital H]][approx lt]200 GeV. Finally, hints of an event excess in the [ital WW][r arrow][ital ll][nu][nu] mode due to the [ital H] might emerge for 140[approx lt][ital m][sub [ital H]][approx lt]180 GeV. Given the difficult nature of the Higgs boson signals for [ital m][sub [ital H]] values beyond the reach of CERN LEP 200, and the discontinuous [ital m][sub [ital H]] range that could potentially be probed, a 4 TeV upgraded Tevatron would allow a much less comprehensive search for a standard model Higgs boson than the CERN LHC.
DOE Contract Number:
FG03-91ER40674
OSTI ID:
6638660
Journal Information:
Physical Review, D (Particles Fields); (United States), Journal Name: Physical Review, D (Particles Fields); (United States) Vol. 51:3; ISSN PRVDAQ; ISSN 0556-2821
Country of Publication:
United States
Language:
English