A Search for the Rare Decay B0 --> D_S+ rho-
High Energy Physics - Experiment
2007-05-23 v1
Abstract
We report on a search for the decay B0 --> D_S+ rho- in a sample of 90 million Y(4S) decays into B meson pairs collected between 1999 and 2001 with the BaBar detector at the PEP-II asymmetric-energy e+e- collider. No significant excess of signal events above the expected background is observed. We set a 90% C.L. limit on the branching fraction Br(B0 --> D_S+ rho-)< 1.9*10^{-5}. Assuming a flavor SU(3) symmetry relation between the decays B0 --> D_S+ rho- and B0 --> D+ rho-, we set a limit on the ratio of CKM-suppressed to CKM-favored amplitudes r(D rho)<9.5*10^{-3} at 90% C.L. All results are preliminary.
Cite
@article{arxiv.hep-ex/0408029,
title = {A Search for the Rare Decay B0 --> D_S+ rho-},
author = {The BABAR Collaboration and B. Aubert},
journal= {arXiv preprint arXiv:hep-ex/0408029},
year = {2007}
}
Comments
16 pages, 8 postscript figues, submitted to ICHEP2004