Aubert, B;
Barate, R;
Bona, M;
Boutigny, D;
Couderc, F;
Karyotakis, Y;
Lees, JP;
... Babar Collaboration; + view all
(2006)
Measurements of branching fractions, polarizations, and direct CP-violation asymmetries in B ->rho K-* and b -> f(0)(980)K-* decays.
PHYS REV LETT
, 97
(20)
, Article 201801. 10.1103/PhysRevLett.97.201801.
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Abstract
We report searches for B-meson decays to the charmless final states rho K-* and f(0)(980)K-* with a sample of 232x10(6) B (B) over bar pairs collected with the BABAR detector at the PEP-II e(+)e(-) collider. We measure in units of 10(-6) the following branching fractions, where the first error quoted is statistical and the second systematic, or upper limits are given at the 90% confidence level : B(B+->rho K-0(*+))< 6.1, B(B+->rho K-+(*0))=9.6 +/- 1.7 +/- 1.5, B(B-0 ->rho K--(*+))< 12.0, B(B-0 ->rho K-0(*0))=5.6 +/- 0.9 +/- 1.3, B(B+-> f(0)(980)K*+)=5.2 +/- 1.2 +/- 0.5, and B(B-0 -> f(0)(980)K-*0)< 4.3. For the significant modes, we also measure the fraction of longitudinal polarization and the charge asymmetry: f(L)(B+->rho K-+(*0))=0.52 +/- 0.10 +/- 0.04, f(L)(B-0 ->rho K-0(*0))=0.57 +/- 0.09 +/- 0.08, A(CP)(B+->rho K-+(*0))=-0.01 +/- 0.16 +/- 0.02, A(CP)(B-0 ->rho K-0(*0))=0.09 +/- 0.19 +/- 0.02, and A(CP)(B+-> f(0)(980)K*+)=-0.34 +/- 0.21 +/- 0.03.
| Type: | Article |
|---|---|
| Title: | Measurements of branching fractions, polarizations, and direct CP-violation asymmetries in B ->rho K-* and b -> f(0)(980)K-* decays |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevLett.97.201801 |
| Publisher version: | http://dx.doi.org/10.1103/PhysRevLett.97.201801 |
| Language: | English |
| Additional information: | © 2006 The American Physical Society |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences |
| URI: | https://discovery-pp.ucl.ac.uk/id/eprint/1303814 |
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