Aubert, B;
Bona, M;
Boutigny, D;
Karyotakis, Y;
Lees, JP;
Poireau, V;
Prudent, X;
... Neal, H; + view all
(2007)
Measurements of CP-violating asymmetries in B-0 -> a(1)(+/-)(1260)pi(-/+) decays.
PHYS REV LETT
, 98
(18)
, Article 181803. 10.1103/PhysRevLett.98.181803.
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Abstract
We present measurements of CP-violating asymmetries in the decay B-0 -> a(1)(+/-)(1260)pi(-/+) with a(1)(+/-)(1260)->pi(-/+)pi(+/-)pi(+/-). The data sample corresponds to 384x10(6) B(b) over bar pairs collected with the BABAR detector at the PEP-II asymmetric B factory at SLAC. We measure the CP-violating asymmetry A(CP)(a1 pi)=-0.07 +/- 0.07 +/- 0.02, the mixing-induced CP violation parameter S-a1 pi=0.37 +/- 0.21 +/- 0.07, the direct CP violation parameter C-a1 pi=-0.10 +/- 0.15 +/- 0.09, and the parameters Delta C-a1 pi=0.26 +/- 0.15 +/- 0.07 and Delta S-a1 pi=-0.14 +/- 0.21 +/- 0.06. From these measured quantities we determine the angle alpha(eff)=78.6 degrees +/- 7.3 degrees.
| Type: | Article |
|---|---|
| Title: | Measurements of CP-violating asymmetries in B-0 -> a(1)(+/-)(1260)pi(-/+) decays |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevLett.98.181803 |
| Publisher version: | http://dx.doi.org/10.1103/PhysRevLett.98.181803 |
| Language: | English |
| Additional information: | © 2007 The American Physical Society |
| Keywords: | ISOSPIN ANALYSIS, B-DECAYS, FACTORIES |
| 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.ucl.ac.uk/id/eprint/1303844 |
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