Search for neutral, long-lived particles decaying into two muons in p(p)over-bar collisions at root s=1.96 TeV
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Issue Date
2006-10Author
Baringer, Philip S.
Bean, Alice
Christofek, L.
Coppage, Don
Gardner, J.
Hensel, Carsten
Moulik, Tania
Wilson, Graham Wallace
Publisher
AMERICAN PHYSICAL SOC
Type
Article
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We present a search for a neutral particle, pair produced in pp collisions at root s=1.96 TeV, which decays into two muons and lives long enough to travel at least 5 cm before decaying. The analysis uses approximate to 380 pb(-1) of data recorded with the D0 detector. The background is estimated to be about one event. No candidates are observed, and limits are set on the pair-production cross section times branching fraction into dimuons + X for such particles. For a mass of 10 GeV and lifetime of 4x10(-11) s, we exclude values greater than 0.14 pb (95% C.L.). These results are used to limit the interpretation of NuTeV's excess of dimuon events.
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Citation
Abazov, VM; Abbott, B, et al. Search for neutral, long-lived particles decaying into two muons in p(p)over-bar collisions at root s=1.96 TeV. PHYSICAL REVIEW LETTERS. October 2006. 97(16)
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