Acosta, D;
Adelman, J;
Affolder, T;
Akimoto, T;
Albrow, MG;
Ambrose, D;
Amerio, S;
... CDF Collaboration; + view all
(2005)
Evidence for B-s(0)->phi phi decay and measurements of branching ratio and A(CP) for B+->phi K+.
PHYS REV LETT
, 95
(3)
, Article 031801. 10.1103/PhysRevLett.95.031801.
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Abstract
We present the first evidence of charmless decays of the B-s(0) meson, the decay B-s(0)->phi phi, and a measurement of the branching ratio BR(B-s(0)->phi phi) using 180 pb(-1) of data collected by the CDF II experiment at the Fermilab Tevatron collider. In addition, the BR and direct CP asymmetry for the B+->phi K+ decay are measured. We obtain BR(B-s(0)->phi phi)=[14(-5)(+6)(stat)+/- 6(syst)]x10(-6), BR(B+->phi K+)=[7.6 +/- 1.3(stat)+/- 0.6(syst)]x10(-6), and A(CP)(B+->phi K+)=-0.07 +/- 0.17(stat)(-0.02)(+0.03)(syst). Both decays are governed in the standard model by second order (penguin) b -> s(s) over bar s amplitudes.
| Type: | Article |
|---|---|
| Title: | Evidence for B-s(0)->phi phi decay and measurements of branching ratio and A(CP) for B+->phi K+ |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevLett.95.031801 |
| Publisher version: | http://dx.doi.org/10.1103/PhysRevLett.95.031801 |
| Language: | English |
| Additional information: | © 2005 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 UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
| URI: | https://discovery-pp.ucl.ac.uk/id/eprint/131767 |
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