Rare charm meson decays D->Pl^+l^- and c->ul^+l^- in SM and MSSM

Abstract

We study the nine possible rare charm meson decays D->Pl^+l^- (P=pi,K,eta,eta') using the Heavy Meson Chiral Lagrangians and find them to be dominated by the long distance contributions. The decay D^+ -> pi^+l^+l^- with the branching ratio 1*10^(-6) is expected to have the best chances for an early experimental discovery. The short distance contribution in the five Cabibbo suppressed channels arises via the c->ul^+l^- transition; we find that this contribution is detectable only in the D->pi l^+l^- decay, where it dominates the differential spectrum at high-q^2. The general Minimal Supersymmetric Standard Model can enhance the c->ul^+l^- rate by up to an order of magnitude; its effect on the D->Pl^+l^- rates is small since the c->ul^+l^- enhancement is sizable in low-q^2 region, which is inhibited in the hadronic decay.

17 pages

References in corpus (23)

• Weak Decays Beyond Leading Logarithms
• A complete analysis of FCNC and CP constraints in general SUSY extensions of the standard model
• Phenomenology of Heavy Meson Chiral Lagrangians
• Stability Bounds on Flavor-Violating Trilinear Soft Terms in the MSSM
• Calculation of Long-Distance Effects in Exclusive Weak Radiative Decays of B-Mesons
• B -> Xs l+ l- decays in supersymmetry
• Radiative Weak Decays of Charm Mesons
• Search for D0-D0B Mixing
• A measurement of lifetime differences in the neutral D-meson system
• The $c\to u\gamma$ Contribution to Weak Radiative Charm Decay
• $c\to u\gamma$ in the minimal supersymmetric standard model
• Search for Rare and Forbidden Dilepton Decays of the D+, Ds, and D0 Charmed Mesons
• Long distance $c\to u\gamma$ effects in weak radiative decays of D-mesons
• Search for Rare and Forbidden Charm Meson Decays D0--> V l+ l- and h h l l
• Resonant and nonresonant contributions to the weak $D\to V{l}^{+}{l}^{-}$ decays
• An effective model for charmed meson semileptonic decays
• FCNC transitions $c\to u\gamma$ and $s\to d\gamma$ in $B_c\to B_u^{\ast }\gamma$ and $B_s\to B_d^{\ast }\gamma$ decays
• $c\to u\gamma$ in Cabibbo suppressed D meson radiative weak decays
• A Possible Arena for Searching New Physics - the $\Gamma (D^0\to {\rho }^0\gamma )/\Gamma (D^0\to \omega \gamma )$ Ratio
• The Long Distance Contribution to $D\to \pi l^{+}{l}^{-}$
• FCNC in leptonic and semileptonic decays of D mesons in a general two-Higgs doublet model
• Radiative Decays of Heavy Mesons and the Determination of the Strong g-Coupling
• Review of Recent Searches for Rare and Forbidden Dilepton Decays of Charmed Mesons

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