QCD Factorization for B {r_arrow} {pi} {pi} Decays: Strong Phases and CP Violation in the Heavy Quark Limit

Journal Article · Wed Sep 01 00:00:00 EDT 1999 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.83.1914· OSTI ID:686466

Beneke, M; Buchalla, G ^[1]; Neubert, M ^[2]; Sachrajda, C T ^[3]

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1. Theory Division, CERN, CH-1211 Geneva 23 (Switzerland)
2. Stanford Linear Accelerator Center, Stanford University, Stanford, California 94309 (United States)
3. Department of Physics and Astronomy, University of Southampton, Southampton SO17 1BJ (United Kingdom)

We show that, in the heavy quark limit, the hadronic matrix elements that enter B meson decays into two light mesons can be computed from first principles, including {open_quotes}nonfactorizable{close_quotes} strong interaction corrections, and expressed in terms of form factors and meson light-cone distribution amplitudes. The conventional factorization result follows in the limit when both power corrections in 1/m{sub b} and radiative corrections in {alpha}{sub s} are neglected. We compute the order-{alpha}{sub s} corrections to the decays B{sub d}{r_arrow}{pi}{sup +}{pi}{sup {minus}} , B{sub d}{r_arrow}{pi}{sup 0}{pi}{sup 0} , and B{sup +}{r_arrow}{pi}{sup +}{pi}{sup 0} in the heavy quark limit and briefly discuss the phenomenological implications for the branching ratios, strong phases and {ital CP } violation. {copyright} {ital 1999} {ital The American Physical Society}

• OSTI ID: 686466
• Journal Information: Physical Review Letters, Vol. 83, Issue 10; Other Information: PBD: Sep 1999
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
QUANTUM CHROMODYNAMICS
B MESONS
CP INVARIANCE
PIONS NEUTRAL
PIONS PLUS
PIONS MINUS
MATRIX ELEMENTS
FORM FACTORS
HADRONIC PARTICLE DECAY