Kusaka, A;
Wang, CC;
Ishino, H;
Abe, K;
Abe, K;
Adachi, I;
Aihara, H;
... Belle Collaboration; + view all
(2007)
Measurement of CP asymmetry in a time-dependent Dalitz analysis of B0 ->(rho pi)(0) and a constraint on the quark mixing matrix angle phi(2).
PHYS REV LETT
, 98
(22)
, Article 221602. 10.1103/PhysRevLett.98.221602.
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Abstract
We present a measurement of CP asymmetry using a time-dependent Dalitz plot analysis of B-0 ->pi(+)pi(-)pi(0) decays based on a 414 fb(-1) data sample containing 449x10(6)B(B) over bar pairs. The data was collected on the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric energy e(+)e(-) collider. Combining our analysis with information on charged B decay modes, we perform a full Dalitz and isospin analysis and obtain a constraint on the CKM angle phi(2), 68 degrees <phi(2)< 95 degrees as the 68.3% confidence interval for the phi(2) solution consistent with the standard model (SM). A large SM-disfavored region also remains.
| Type: | Article |
|---|---|
| Title: | Measurement of CP asymmetry in a time-dependent Dalitz analysis of B0 ->(rho pi)(0) and a constraint on the quark mixing matrix angle phi(2) |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevLett.98.221602 |
| Publisher version: | http://dx.doi.org/10.1103/PhysRevLett.98.221602 |
| Language: | English |
| Additional information: | © 2007 The American Physical Society |
| Keywords: | ISOSPIN ANALYSIS, B-DECAYS, VIOLATION, BELLE |
| 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/1308553 |
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