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Observation of D+(s)K- and evidence for D+(s)pi- final states in neutral B decays.
- Source :
-
Physical review letters [Phys Rev Lett] 2002 Dec 02; Vol. 89 (23), pp. 231804. Date of Electronic Publication: 2002 Nov 18. - Publication Year :
- 2002
-
Abstract
- We report the first observation of a B meson decay that is not accessible by a direct spectator process. The channel B(0)-->D(+)(s)K- is found in a sample of 85 x 10(6) BB; events, collected with the Belle detector at KEKB, with a branching fraction B(B(0)-->D(+)(s)K-)=(4.6(+1.2)(-1.1)+/-1.3) x 10(-5). We also obtain evidence for the B0-->D(+)(s)pi(-) decay with branching fraction B(B0-->D(+)(s)pi(-))=(2.4(+1.0)(-0.8)+/-0.7) x 10(-5). This value may be used to extract a model-dependent value of |V(ub)|.
Details
- Language :
- English
- ISSN :
- 0031-9007
- Volume :
- 89
- Issue :
- 23
- Database :
- MEDLINE
- Journal :
- Physical review letters
- Publication Type :
- Academic Journal
- Accession number :
- 12485001
- Full Text :
- https://doi.org/10.1103/PhysRevLett.89.231804