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ISSN - 03702693, Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 2005, vol. 624, p. 1-10

A method to measure φ1 using B̄0 → D(*)h0 with multibody D decay

Bondar Alex, Gershon Tim, Krokovny Pavel

We describe a new method to measure the angle φ1 of the CKM Unitarity Triangle using amplitude analysis of the multibody decay of the neutral D meson produced via B̄ → D(* )h0 colour-suppressed decays. The method employs the interference between D0 and D̄0 to directly extract the value of 2φ1, and thus resolve the ambiguity between 2φ1 and π - 2φ1 in the measurement of sin(2φ1) using B̄0 → J/ψKS. We present a feasibility study of this method using Monte Carlo simulation. © 2005 Elsevier B.V. All rights reserved.