Search for neutral, long-lived particles decaying into two muons in p(p)over-bar collisions at root s=1.96 TeV

Search for neutral, long-lived particles decaying into two muons in p(p)over-bar collisions at root s=1.96 TeV

We present a search for a neutral particle, pair produced in pp̄ collisions at s=1.96TeV, which decays into two muons and lives long enough to travel at least 5 cm before decaying. The analysis uses 380pb-1 of data recorded with the D0 detector. The background is estimated to be about one event. No...

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Bibliographic Details
Main Authors: Abazov, V, Abbott, B, Abolins, M, Acharya, B, Adams, M, Adams, T, Agelou, M, Ahn, S, Ahsan, M, Alexeev, G, Alkhazov, G, Alton, A, Alverson, G, Alves, G, Anastasoaie, M, Andeen, T, Anderson, S, Andrieu, B, Anzelc, MS, Arnoud, Y, Arov, M, Askew, A, Asman, B, Jesus, A, Atramentov, O
Format: Journal article
Language:English
Published: 2006
Description
Summary:We present a search for a neutral particle, pair produced in pp̄ collisions at s=1.96TeV, which decays into two muons and lives long enough to travel at least 5 cm before decaying. The analysis uses 380pb-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 4×10-11s, 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. © 2006 The American Physical Society.

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