Search for Rare and Forbidden 3-body Di-muon Decays of the Charmed Mesons D+ and Ds+

Details Search for Rare and Forbidden 3-body Di-muon Decays of the Charmed Mesons D+ and Ds+ Search for Rare and Forbidden 3-body Di-muon Decays of the Charmed Mesons D+ and Ds+

2003-06-24

arxiv.org/abs/hep-ex/0306049v1

Phys.Lett.B572:21-31,2003

Physics

High Energy Physics

High Energy Physics - Experiment

17 pages, 7 figure files

Scientific paper

10.1016/j.physletb.2003.07.079

Using a high statistics sample of photo-produced charm particles from the FOCUS experiment at Fermilab, we report results of a search for eight rare and Standard-Model-forbidden decays: D+, Ds+ > h+/- muon-/+ muon+ (with h=pion or Kaon). Improvement over previous results by a factor of 1.7--14 is realized. Our branching ratio upper limit D+ > pion+ muon- muon+ of 8.8E-6 at the 90% C.L. is below the current MSSM R-Parity violating constraint.

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