Rare charm meson decays D->Pl^+l^- and c->ul^+l^- in SM and MSSM
| dc.creator | Fajfer, S. | |
| dc.creator | Prelovsek, S. | |
| dc.creator | Singer, P. | |
| dc.date | 2001-06-28 | |
| dc.date.accessioned | 2026-07-07T11:31:07Z | |
| dc.date.available | 2026-07-07T11:31:07Z | |
| dc.description | 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. | |
| dc.description | 17 pages | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0106333 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0106333 | |
| dc.identifier | Phys.Rev.D64:114009,2001 | |
| dc.identifier | doi:10.1103/PhysRevD.64.114009 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/197166 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Rare charm meson decays D->Pl^+l^- and c->ul^+l^- in SM and MSSM | |
| dc.type | text |