Constraints upon the CKM angle phi_2 (alpha) from Belle and BaBar

Details Constraints upon the CKM angle phi_2 (alpha) from Belle and BaBar Constraints upon the CKM angle phi_2 (alpha) from Belle and BaBar

2004-10-07

arxiv.org/abs/hep-ex/0410025v2

Physics

High Energy Physics

High Energy Physics - Experiment

8 pages, 6 figures, 1 table, contribution to the 6th International Conference on Hyperons, Charm and Beauty Hadrons (BEACH 200

Scientific paper

10.1016/j.nuclphysbps.2005.01.04

The Belle and BaBar experiments have measured branching fractions and CP
asymmetries in the charmless decay modes B0->pi+pi-, B0->rho+pi-/rho-pi+, and
B0->rho+rho-. From these measurements, constraints upon the CKM angle phi_2 can
be obtained. These constraints consistently indicate that phi_2 is around 100
degrees.

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