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Observation of tree-level B decays with s(s)over-bar production from gluon radiation
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. (2008) Observation of tree-level B decays with s(s)over-bar production from gluon radiation. Physical Review Letters, Vol.100 (No.17). ISSN 0031-9007 Full text not available from this repository.
Official URL: http://dx.doi.org/10.1103/PhysRevLett.100.171803
Abstract
We report on our search for decays proceeding via a tree-level b -> c quark transition in which a gluon radiates into an s (s) over bar pair. We present observations of the decays B--> D-s(*)K-+(-) pi(-) and (B) over bar (0) -> (Ds+KS0)pi(-) and evidence for B--> D-s(+) K- K- and set upper limits on the branching fractions for (B) over bar (0) -> (Ds*+KS0) pi(-) and B- -> Ds*+K- K- using 383 x 10(6) gamma(4S)-> B (B) over bar events collected by the BABAR detector at SLAC. We present evidence that the invariant mass distributions of Ds(*)+K- pairs from B- -> D-s(*)K-+(-)pi(-) decays are inconsistent with the phase-space model, suggesting the presence of charm resonances lying below the D-s(*)(+) K- threshold.
| Item Type: | Journal Article |
|---|---|
| Subjects: | Q Science > QC Physics |
| Divisions: | Faculty of Science > Physics |
| Journal or Publication Title: | Physical Review Letters |
| Publisher: | American Physical Society |
| ISSN: | 0031-9007 |
| Official Date: | 2 May 2008 |
| Volume: | Vol.100 |
| Number: | No.17 |
| Number of Pages: | 7 |
| Identification Number: | 10.1103/PhysRevLett.100.171803 |
| Status: | Peer Reviewed |
| Publication Status: | Published |
| Access rights to Published version: | Restricted or Subscription Access |
| URI: | http://wrap.warwick.ac.uk/id/eprint/30098 |
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