Measurement of Branching Fractions and Charge Asymmetries in B{sup +} Decays to {eta}{pi}{sup +}, {eta}K{sup +}, {eta}{rho}{sup +}, and {eta}{sup '}{pi}{sup +}, and Search for B{sup 0} Decays to {eta}K{sup 0} and {eta}{omega}
- Laboratoire de Physique des Particules, F-74941 Annecy-le-Vieux (France)
- IFAE, Universitat Autonoma de Barcelona, E-08193 Bellaterra, Barcelona (Spain)
- Dipartimento di Fisica and INFN, Universita di Bari, I-70126 Bari (Italy)
- Institute of High Energy Physics, Beijing 100039 (China)
- Inst. of Physics, University of Bergen, N-5007 Bergen (Norway); and others
We present measurements of branching fractions and charge asymmetries for six B-meson decay modes with an {eta} or {eta}{sup '} meson in the final state. The data sample corresponds to 232x10{sup 6} BB pairs collected with the BABAR detector at the PEP-II asymmetric-energy e{sup +}e{sup -} B Factory at SLAC. We measure the branching fractions (in units of 10{sup -6}): B(B{sup +}{yields}{eta}{pi}{sup +})=5.1{+-}0.6{+-}0.3, B(B{sup +}{yields}{eta}K{sup +})=3.3{+-}0.6{+-}0.3, B(B{sup 0}{yields}{eta}K{sup 0})=1.5{+-}0.7{+-}0.1 (<2.5 at 90% C.L.), B(B{sup +}{yields}{eta}{rho}{sup +})=8.4{+-}1.9{+-}1.1, B(B{sup 0}{yields}{eta}{omega})=1.0{+-}0.5{+-}0.2 (<1.9 at 90% C.L.), and B(B{sup +}{yields}{eta}{sup '}{pi}{sup +})=4.0{+-}0.8{+-}0.4, where the first uncertainty is statistical and second systematic. For the charged modes we also determine the charge asymmetries, all found to be compatible with zero.
- OSTI ID:
- 20696497
- Journal Information:
- Physical Review Letters, Vol. 95, Issue 13; Other Information: DOI: 10.1103/PhysRevLett.95.131803; (c) 2005 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0031-9007
- Country of Publication:
- United States
- Language:
- English
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