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APS » Journals » Phys. Rev. D » Volume 68 » Issue 7
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Phys. Rev. D 68, 071301(R) (2003) [5 pages]

Direct CP violation and isospin triangles of B⃗ππ decays

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Zhi-zhong Xing*
CCAST (World Laboratory), P.O. Box 8730, Beijing 100080, China
Institute of High Energy Physics, Chinese Academy of Sciences, P.O. Box 918 (4), Beijing 100039, China

Received 22 August 2003; published 13 October 2003

The recent observation of Bd0→π0π0 and Bd0→π0π0 decay modes allows us to make a fresh isospin analysis of B⃗ππ transitions. We find that current experimental data can impose some model-independent constraints on the parameter space of direct CP violation in Bd→π+π- and Bd→π0π0. Furthermore, we establish a direct relationship between the weak phase α and the charge-averaged branching fractions and CP-violating asymmetries of B⃗ππ decays.

© 2003 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevD.68.071301
DOI:
10.1103/PhysRevD.68.071301
PACS:
12.15.Ff, 11.30.Er, 13.25.Hw, 14.40.Nd

*Electronic address: xingzz@mail.ihep.ac.cn

 
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