Kataoka, SU;
Abe, K;
Abe, K;
Adachi, I;
Aihara, H;
Akatsu, M;
Asano, Y;
... Belle Collaboration, .; + view all
(2004)
Study of time-dependent CP violation in B-0 -> J/psi pi(0) decays.
PHYS REV LETT
, 93
(26)
, Article 261801. 10.1103/PhysRevLett.93.261801.
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Abstract
We report a measurement of CP asymmetry parameters in the decay B-0((B) over bar (0))-->J/psipi(0), which is governed by the b-->c(c) over bar d transition. The analysis is based on a 140 fb(-1) data sample accumulated at the Y(4S) resonance by the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. One neutral B meson in the J/psipi(0) final state is fully reconstructed for events used in this analysis. The accompanying B meson flavor is identified by its decay products. From the distribution of proper-time intervals between the two B decays, we obtain the following CP-violating parameters: S-J/psipi(0)=-0.72+/-0.42(stat)+/-0.09(syst) and A(J/psipi)(0)=-0.01+/-0.29(stat)+/-0.03(syst).
| Type: | Article |
|---|---|
| Title: | Study of time-dependent CP violation in B-0 -> J/psi pi(0) decays |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevLett.93.261801 |
| Publisher version: | http://dx.doi.org/10.1103/PhysRevLett.93.261801 |
| Language: | English |
| Additional information: | © 2004 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.ucl.ac.uk/id/eprint/1308449 |
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