Search for flavor-changing-neutral-current D meson decays
Nenhuma Miniatura disponível
Data
2008-03-14
Orientador
Coorientador
Pós-graduação
Curso de graduação
Título da Revista
ISSN da Revista
Título de Volume
Editor
Tipo
Artigo
Direito de acesso
Resumo
We study the flavor-changing-neutral-current process c→uμ+μ- using 1.3fb-1 of pp̄ collisions at s=1.96TeV recorded by the D0 detector operating at the Fermilab Tevatron Collider. We see clear indications of the charged-current mediated Ds+ and D+→ π+→μ+μ-π+ final states with significance greater than 4 standard deviations above background for the D+ state. We search for the continuum neutral-current decay of D+→π+μ+μ- in the dimuon invariant mass spectrum away from the resonance. We see no evidence of signal above background and set a limit of B(D+→π+μ+μ-)<3.9×10-6 at the 90% C.L. This limit places the most stringent constraint on new phenomena in the c→uμ+μ- transition. © 2008 The American Physical Society.
Descrição
Palavras-chave
Idioma
Inglês
Como citar
Physical Review Letters, v. 100, n. 10, 2008.
