Wang, CC;
Abe, K;
Abe, K;
Abe, T;
Adachi, I;
Aihara, H;
Asano, Y;
... Belle Collaboration; + view all
(2005)
Study of B-0 -> rho(+/-)pi(-/+) time-dependent CP violation at Belle.
PHYS REV LETT
, 94
(12)
, Article 121801. 10.1103/PhysRevLett.94.121801.
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Abstract
We present a time-dependent analysis of CP violation in B-0->rho(+/-)pi(-/+) decays based on a 140 fb(-1) data sample collected at the Upsilon(4S) resonance with the Belle detector at KEKB. We obtain the charge asymmetry A(CP)(rho pi) = -0.16 +/- 0.10(stat)+/- 0.02(syst). An unbinned maximum-likelihood fit to the Delta t distributions yields C-rho pi = 0.25 +/- 0.17(stat)(-0.06)(+0.02)(syst), Delta C-rho pi = 0.38 +/- 0.18(stat)(-0.04)(+0.02)(syst), S-rho pi = -0.28 +/- 0.23(stat)(-0.08)(+0.10)(syst), and Delta S-rho pi = -0.30 +/- 0.24(stat)+/- 0.09(syst). The direct CP violation parameters for B ->rho(+)pi(-) and B ->rho(-)pi(+) decays are A(rho pi)(+) = -0.02 +/- 0.16(stat)(-0.02)(+0.05)(syst) and A(rho pi)(-+)= -0.53 +/- 0.29(stat)(-0.04)(+0.09)(syst).
| Type: | Article |
|---|---|
| Title: | Study of B-0 -> rho(+/-)pi(-/+) time-dependent CP violation at Belle |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevLett.94.121801 |
| Publisher version: | http://dx.doi.org/10.1103/PhysRevLett.94.121801 |
| Language: | English |
| Additional information: | © 2005 The American Physical Society |
| Keywords: | B-DECAYS, ASYMMETRIES |
| 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/1308457 |
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