Study of the Decays B{sup -} {yields} D*{sup +}{pi}{sup -}{pi}{sup -}
- Resource Type
- Technical Report
- Authors
- Source
- Other Information: Paper was contributed to the XXIst International Symposium on Lepton and Photon Interactions at High Energies, Batavia, IL (US) 08/11/2003--08/16/2003; PBD: 11 Aug 2003
- Subject
- 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS B MINUS MESONS
PARTICLE DECAY
PAIR PRODUCTION
PIONS MINUS
BRANCHING RATIO
DATA
D1-2420 MESONS
D*2-2460 MESONS
- Language
- English
We report on analyses of B{sup -} mesons decaying into D*{sup +}{pi}{sup -}{pi}{sup -} and D{sup +}{pi}{sup -}{pi}{sup -} final states using 89 million B{sup -} decays collected by the BABAR detector at the PEP-II asymmetric-energy B Factory. Preliminary measurements are given for the inclusive branching fractions for B{sup -} {yields} D*{sup +}{pi}{sup -}{pi}{sup -} and B{sup -} {yields} D*{sup +}{pi}{sup -}{pi}{sup -}, and for the exclusive branching fractions for B{sup -} {yields} D{sub 1}(2420){sup 0}{pi}{sup -} and B{sup -} {yields} D*{sub 2}(2460){sup 0}{pi}{sup -}, where D{sub 1}(2420){sup 0} and D*{sub 2}(2460){sup 0} are the two narrow c{bar u} P-wave states. The ratio {Beta}(B{sup -} {yields} D*{sub 2}(2460){sup 0}{pi}{sup -})/{Beta}(B{sup -} {yields} D{sub 1}(2420){sup 0}{pi}{sup -}) is measured to be 0.80 {+-} 0.07 {+-} 0.16.