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Title: Erratum: CP asymmetry, branching ratios, and isospin breaking effects in B{yields}{rho}{gamma} and B{yields}{omega}{gamma} decays with the perturbative QCD approach [Phys. Rev. D 72, 094005 (2005)]

Abstract

No abstract prepared.

Authors:
; ; ;
Publication Date:
OSTI Identifier:
20776705
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review. D, Particles Fields; Journal Volume: 73; Journal Issue: 3; Other Information: DOI: 10.1103/PhysRevD.73.039902; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; ASYMMETRY; B MESONS; BRANCHING RATIO; CP INVARIANCE; ERRORS; ISOSPIN; OMEGA-782 MESONS; PARTICLE DECAY; PERTURBATION THEORY; PHOTONS; QUANTUM CHROMODYNAMICS; RHO-770 MESONS; SYMMETRY BREAKING

Citation Formats

Lue Caidian, Matsumori, M., Sanda, A.I., and Yang Maozhi. Erratum: CP asymmetry, branching ratios, and isospin breaking effects in B{yields}{rho}{gamma} and B{yields}{omega}{gamma} decays with the perturbative QCD approach [Phys. Rev. D 72, 094005 (2005)]. United States: N. p., 2006. Web. doi:10.1103/PhysRevD.73.039902.
Lue Caidian, Matsumori, M., Sanda, A.I., & Yang Maozhi. Erratum: CP asymmetry, branching ratios, and isospin breaking effects in B{yields}{rho}{gamma} and B{yields}{omega}{gamma} decays with the perturbative QCD approach [Phys. Rev. D 72, 094005 (2005)]. United States. doi:10.1103/PhysRevD.73.039902.
Lue Caidian, Matsumori, M., Sanda, A.I., and Yang Maozhi. Wed . "Erratum: CP asymmetry, branching ratios, and isospin breaking effects in B{yields}{rho}{gamma} and B{yields}{omega}{gamma} decays with the perturbative QCD approach [Phys. Rev. D 72, 094005 (2005)]". United States. doi:10.1103/PhysRevD.73.039902.
@article{osti_20776705,
title = {Erratum: CP asymmetry, branching ratios, and isospin breaking effects in B{yields}{rho}{gamma} and B{yields}{omega}{gamma} decays with the perturbative QCD approach [Phys. Rev. D 72, 094005 (2005)]},
author = {Lue Caidian and Matsumori, M. and Sanda, A.I. and Yang Maozhi},
abstractNote = {No abstract prepared.},
doi = {10.1103/PhysRevD.73.039902},
journal = {Physical Review. D, Particles Fields},
number = 3,
volume = 73,
place = {United States},
year = {Wed Feb 01 00:00:00 EST 2006},
month = {Wed Feb 01 00:00:00 EST 2006}
}
  • The radiative B{yields}{rho}{gamma}, B{yields}{omega}{gamma} decay modes are caused by the flavor-changing-neutral-current process, so they give us good insight towards probing the standard model in order to search for new physics. In this paper, we compute the branching ratio, direct CP asymmetry, and isospin breaking effects using the perturbative QCD approach within the standard model.
  • No abstract prepared.
  • The main contribution to the radiative B{yields}K*{gamma} mode is from penguin operators which are quantum corrections. Thus, this mode may be useful in the search for physics beyond the standard model. In this paper, we compute the branching ratio, direct CP asymmetry, and isospin breaking effects within the standard model in the framework of perturbative QCD, and discuss how new physics might show up in this decay.
  • In this paper, we calculate the branching ratios and CP-violating asymmetries for B{sup 0}{yields}{rho}{sup 0}{eta}{sup (')} and B{sup +}{yields}{rho}{sup +}{eta}{sup (')} decays in the perturbative QCD factorization approach. In this approach, we not only calculate the usual factorizable contributions, but also evaluate the nonfactorizable and annihilation type contributions. Besides the current-current operators, the contributions from the QCD and electroweak penguin operators are also taken into account. The theoretical predictions for the branching ratios are Br(B{sup +}{yields}{rho}{sup +}{eta}{sup (')}){approx_equal}9x10{sup -6} and Br(B{sup 0}{yields}{rho}{sup 0}{eta}{sup (')}){approx_equal}5x10{sup -8}, which agree well with the measured values and currently available experimental upper limits. We alsomore » predict large CP-violating asymmetries in these decays: A{sub CP}{sup dir}({rho}{sup {+-}}{eta}){approx_equal}-13%, A{sub CP}{sup dir}({rho}{sup {+-}}{eta}{sup '}){approx_equal}-18%, A{sub CP}{sup dir}({rho}{sup 0}{eta}){approx_equal}-41%, A{sub CP}{sup dir}({rho}{sup 0}{eta}{sup '}){approx_equal}-27%, A{sub CP}{sup mix}({rho}{sup 0}{eta}){approx_equal}+25%, and A{sub CP}{sup mix}({rho}{sup 0}{eta}{sup '}){approx_equal}+11%, which can be tested by the current or future B factory experiments.« less
  • In this work, we calculate the branching ratios, polarization fractions and CP asymmetry parameters of decay modes B{yields}{rho}({omega}){rho}({omega}) in the perturbative QCD approach, which is based on k{sub T} factorization. After calculation, we find that the branching ratios of B{sup 0}{yields}{rho}{sup +}{rho}{sup -}, B{sup +}{yields}{rho}{sup +}{rho}{sup 0}, and B{sup +}{yields}{rho}{sup +}{omega} are at the order of 10{sup -5}, and their longitudinal polarization fractions are more than 90%. The above results agree with BaBar's measurements. We also calculate the branching ratios and polarization fractions of B{sup 0}{yields}{rho}{sup 0}{rho}{sup 0}, B{sup 0}{yields}{rho}{sup 0}{omega}, and B{sup 0}{yields}{omega}{omega} decays. We find that their longitudinalmore » polarization fractions are suppressed to 60-80% due to a small color suppressed tree contribution. The dominant penguin and nonfactorization tree contributions equally contribute to the longitudinal and transverse polarization, which will be tested in the future experiments. We predict the CP asymmetry of B{sup 0}{yields}{rho}{sup +}{rho}{sup -} and B{sup +}{yields}{rho}{sup +}{rho}{sup 0}, which will be measured in B factories.« less