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±μ∓μ+ (with h = π, K). Improvement over previous results by a factor of 1.7-14 is realized. Our branching ratio upper limit D+ → π+μ -μ+ of 8.8 × 10-6 at the 90% C.L. is below the current MSSM R-parity violating constraint.

Link, J., Yager, P., Anjos, J., Bediaga, I., Gobel, C., Magnin, J., et al. (2003). Search for rare and forbidden 3-body di-muon decays of the charmed mesons D+ and D-s(+). PHYSICS LETTERS. SECTION B, 572(1-2), 21-31 [10.1016/j.physletb.2003.07.079].

Search for rare and forbidden 3-body di-muon decays of the charmed mesons D+ and D-s(+)

Moroni L;Gianini G;
2003

Abstract

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±μ∓μ+ (with h = π, K). Improvement over previous results by a factor of 1.7-14 is realized. Our branching ratio upper limit D+ → π+μ -μ+ of 8.8 × 10-6 at the 90% C.L. is below the current MSSM R-parity violating constraint.
Articolo in rivista - Articolo scientifico
article; calculation; elementary particle; energy; light; mass; mathematical model; Monte Carlo method; photon
English
2003
572
1-2
21
31
none
Link, J., Yager, P., Anjos, J., Bediaga, I., Gobel, C., Magnin, J., et al. (2003). Search for rare and forbidden 3-body di-muon decays of the charmed mesons D+ and D-s(+). PHYSICS LETTERS. SECTION B, 572(1-2), 21-31 [10.1016/j.physletb.2003.07.079].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/455643
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