Search for the flavor-changing neutral current decay D-o ->mu(+)mu(-) the HERA-B detector

I. Abt, T. Bauer, J. Carvalho, J.R. Hernandez, K. Lau, A. Sbrizzi, H. Schroder, A.S. Schwarz, J. Wang

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Abstract

We report on a search for the flavor-changing neutral current decay D0→μ+μ- using 50×106 events recorded with a dimuon trigger in interactions of 920 GeV protons with nuclei by the HERA-B experiment. We find no evidence for such decays and set a 90% confidence level upper limit on the branching fraction B(D0→μ+μ-)<2.0×10-6. © 2004 Elsevier B.V.
Original languageEnglish
Pages (from-to)173-183
JournalPhysics Letters B
Volume596
Issue number3-4
DOIs
Publication statusPublished - 2004

Bibliographical note

Search for the flavor-changing neutral current decay D-o ->mu(+)mu(-) the HERA-B detector

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