Updated search for the flavor-changing neutral-current decay D[superscript 0]-->mu+mu- in pp[over-bar] collisions at [sqrt]s=1.96 TeV
Author(s)
Bauer, Gerry P.; Gomez-Ceballos, Guillelmo; Goncharov, Maxim; Makhoul, K.; Paus, Christoph M. E.
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Alternative title
Updated search for the flavor-changing neutral-current decay D0→μ+μ- in pp̅ collisions at √s=1.96 TeV
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We report on a search for the flavor-changing neutral-current decay D0-->mu+mu- in pp[over-bar] collisions at [sqrt]s=1.96 TeV using 360 pb[superscript -1] of integrated luminosity collected by the CDF II detector at the Fermilab Tevatron collider. A displaced vertex trigger selects long-lived D0 candidates in the mu+mu-, pi+pi-, and K-pi+ decay modes. We use the Cabibbo-favored D0-->K-pi+ channel to optimize the selection criteria in an unbiased manner, and the kinematically similar D0-->pi+pi- channel for normalization. We set an upper limit on the branching fraction B(D0-->mu+mu-)<2.1×10-7(3.0×10-7) at the 90% (95%) confidence level.
Date issued
2010-11Department
Massachusetts Institute of Technology. Department of PhysicsJournal
Physical Review D
Publisher
American Physical Society
Citation
T. Aaltonen et al. (CDF Collaboration) "Updated search for the flavor-changing neutral-current decay D0→μ+μ- in pp̅ collisions at √s=1.96 TeV." Phys. Rev. D 82, 091105(R) (2010) [8 pages] © 2010 The American Physical Society.
Version: Final published version
ISSN
1550-7998
1550-2368