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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). doi:10.1103/PhysRevLett.100.171803 Research output not available from this repository, contact author.
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 | ||||
| Dates: |
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| Volume: | Vol.100 | ||||
| Number: | No.17 | ||||
| Number of Pages: | 7 | ||||
| DOI: | 10.1103/PhysRevLett.100.171803 | ||||
| Status: | Peer Reviewed | ||||
| Publication Status: | Published | ||||
| Access rights to Published version: | Restricted or Subscription Access |
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