Search for Excess Dimuon Production in the Radial Region (1.6 < r < 10) cm at the D0 Experiment

Details Search for Excess Dimuon Production in the Radial Region (1.6 < r < 10) cm at the D0 Experiment Search for Excess Dimuon Production in the Radial Region (1.6 < r < 10) cm at the D0 Experiment

2009-06-16

arxiv.org/abs/0906.2969v1

PoS EPS-HEP2009:248,2009

Physics

High Energy Physics

High Energy Physics - Experiment

Presented at 44th Recontres de Moriond on QCD and high-energy interactions, La Thuile, Italy, 14th-21st March 2009

Scientific paper

We report on a study of dimuon events produced in $p\bar{p}$ collisions at $\sqrt{s} = 1.96$ TeV, using 0.9fb$^{-1}$ of data recorded by the D0 experiment during 2008. Using information from the inner-layer silicon tracking detector, we observe $712 \pm 462 \pm 942$ events in which one or both muons are produced in the range $1.6 < r \lesssim 10$ cm, which is expressed as a fraction $(0.40 \pm 0.26 \pm 0.53)%$ of the total dimuon sample. We therefore see no significant excess of muons produced a few centimeters away from the interaction point.

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