A Search for the Rare Decay B[sup 0] to D[sub S][sup +] Rho[sup -].
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| Author | : |
| Publisher | : |
| Total Pages | : |
| Release | : 2004 |
| ISBN-10 | : OCLC:68497161 |
| ISBN-13 | : |
| Rating | : 4/5 (61 Downloads) |
Book Synopsis A Search for the Rare Decay B[sup 0] to D[sub S][sup +] Rho[sup -]. by :
Book excerpt: The authors report on a search for the decay B[sup 0] --> D[sub s][sup +][rho][sup -] in a sample of 90 x 10[sup 6] [Upsilon](4S) decays into B meson pairs collected between 1999 and 2001 with the BABAR detector at the PEP-II asymmetric-energy e[sup +]e[sup -] collider. No significant excess of signal events above the expected background is observed. The authors set a 90% C.L. limit on the branching fraction B(B[sup 0] --> D[sub s][sup +][rho][sup -]) 1.9 x 10[sup -5]. Assuming a flavor SU(3) symmetry relation between the decays B[sup 0] -- D[sub s][sup +][rho][sup -] and B[sup 0] --> D[sup +][rho][sup -], they set a limit on the ratio of CKM-suppressed to CKM-favored amplitudes r(D[rho])
