6533b86ffe1ef96bd12ce7b2

RESEARCH PRODUCT

Unitarity Triangle from CP invariant quantities

B. RenkKonrad Kleinknecht

subject

Coupling constantPhysicsNuclear and High Energy PhysicsParticle physicsAntiparticleUnitarityHigh Energy Physics::PhenomenologyFOS: Physical sciencesInvariant (physics)High Energy Physics - PhenomenologyHigh Energy Physics - Phenomenology (hep-ph)CP violationB mesonHigh Energy Physics::Experiment

description

We construct the CKM unitarity triangle from CP invariant quantities, using the coupling constant of weak decays with flavor change from b to u, and the particle - antiparticle mixing probability in the B_s and B_d systems. Also included are new measurements of the coupling V_us in Kaon decays. Of the two solutions, one agrees perfectly with the triangle constructed from CP violating processes in the K and B meson systems. The common solution yields a triangle with an area of J/2 = (1.51 +/- 0.09) x 10^{-5} and a CP violating phase gamma = 63.1^o +/- 4.0^o.

yearjournalcountryeditionlanguage
2006-08-01
10.1016/j.physletb.2006.07.015http://arxiv.org/abs/hep-ph/0604202