Search for the Flavor-Changing Neutral Current Decay in Collisions at TeV
Collaboration
14 pages
Published in:
- Phys.Rev.D 68 (2003) 091101
e-Print:
- hep-ex/0308059 [hep-ex]
Report number:
- FERMILAB-PUB-03-240-E
Experiments:
Citations per year
Abstract:
We report on a search for the flavor-changing neutral current decay D^0\to\mu^+\mu^- in p\bar{p} collisions at \sqrt{s}=1.96 TeV using 65\ipb of data collected by the CDF II experiment at the Fermilab Tevatron Collider. A displaced-track trigger selects long-lived D^0 candidates in the D^0\to\mu^+\mu^- search channel, the kinematically similar D^0\to\pi^+\pi^- channel used for normalization, the Cabbibo-favored D^0\to K^+\pi^- channel used to optimize the selection criteria in an unbiased manner, and their charge conjugates. Finding no signal events in the D^0\to\mu^+\mu^- search window, we set an upper limit on the branching fraction {\cal B}(D^0\to\mu^+\mu^-)\leq 2.5E-6 (3.3E-6) at the 90% (95%) confidence level.Note:
- 14 pages, 2 postscript figures, RevTeX, submitted to Phys. Rev. D rapid comm
- 14.40.Lb
- 13.20.Fc
- anti-p p: colliding beams
- anti-p p: inclusive reaction
- D0: hadroproduction
- D0: leptonic decay
- muon: pair production
- neutral current: flavor changing
- D0: branching ratio
- upper limit
References(14)
Figures(0)