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

Abstract

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}

Authors:
;  [1];  [2];  [3]
  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)
Publication Date:
OSTI Identifier:
686466
Resource Type:
Journal Article
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 83; Journal Issue: 10; Other Information: PBD: Sep 1999
Country of Publication:
United States
Language:
English
Subject:
66 PHYSICS; QUANTUM CHROMODYNAMICS; B MESONS; CP INVARIANCE; PIONS NEUTRAL; PIONS PLUS; PIONS MINUS; MATRIX ELEMENTS; FORM FACTORS; HADRONIC PARTICLE DECAY

Citation Formats

Beneke, M., Buchalla, G., Neubert, M., and Sachrajda, C.T.. QCD Factorization for B {r_arrow} {pi} {pi} Decays: Strong Phases and CP Violation in the Heavy Quark Limit. United States: N. p., 1999. Web. doi:10.1103/PhysRevLett.83.1914.
Beneke, M., Buchalla, G., Neubert, M., & Sachrajda, C.T.. QCD Factorization for B {r_arrow} {pi} {pi} Decays: Strong Phases and CP Violation in the Heavy Quark Limit. United States. doi:10.1103/PhysRevLett.83.1914.
Beneke, M., Buchalla, G., Neubert, M., and Sachrajda, C.T.. Wed . "QCD Factorization for B {r_arrow} {pi} {pi} Decays: Strong Phases and CP Violation in the Heavy Quark Limit". United States. doi:10.1103/PhysRevLett.83.1914.
@article{osti_686466,
title = {QCD Factorization for B {r_arrow} {pi} {pi} Decays: Strong Phases and CP Violation in the Heavy Quark Limit},
author = {Beneke, M. and Buchalla, G. and Neubert, M. and Sachrajda, C.T.},
abstractNote = {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}},
doi = {10.1103/PhysRevLett.83.1914},
journal = {Physical Review Letters},
number = 10,
volume = 83,
place = {United States},
year = {1999},
month = {9}
}