Search for neutral, long-lived particles decaying into two muons in $p \bar{p}$ collisions at $\sqrt{s}$ = 1.96-TeV - INSPIRE

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Search for neutral, long-lived particles decaying into two muons in $p \bar{p}$ collisions at $\sqrt{s}$ = 1.96-TeV

D0

Collaboration

Jul, 2006

7 pages

Published in:

Phys.Rev.Lett. 97 (2006) 161802

e-Print:

hep-ex/0607028 [hep-ex]

DOI:

10.1103/PhysRevLett.97.161802

Report number:

FERMILAB-PUB-06-245-E

Experiments:

FNAL-E-0823

View in:

reference search57 citations

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Abstract:

We present a search for a neutral particle, pair-produced in p-pbar collisions at sqrt(s)=1.96 TeV, which decays into two muons and lives long enough to travel at least 5 cm before decaying. The analysis uses ~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 di-muon events.

Note:

submitted to Phys. Rev. Lett Report-no: FERMILAB-PUB-06-245-E

13.85.Rm
12.60.Jv
14.80.Ly
D0
anti-p p: colliding beams
new particle: search for
neutral particle: pair production
neutral particle: leptonic decay
muon: pair production
supersymmetry

References(23)

Figures(0)

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