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Title: Two-pseudoscalar-meson decay of {chi}{sub cJ} with twist-3 corrections

Abstract

The decays of {chi}{sub cJ}{yields}{pi}{sup +}{pi}{sup -}, K{sup +}K{sup -} (J=0,2) are discussed within the standard and modified hard-scattering approach when including the contributions from twist-3 distribution amplitudes and wave functions of the light pseudoscalar meson. A model for twist-2 and twist-3 distribution amplitudes and wave functions of the pion and kaon with BHL prescription are proposed as the solution to the end-point singularities. The results show that the contributions from twist-3 parts are actually not power suppressed comparing with the leading-twist contribution. After including the effects from the transverse momentum of light meson valence-quark state and Sudakov factors, the decay widths of the {chi}{sub cJ} into pions or kaons are comparable with the their experimental data.

Authors:
;  [1];  [2]
  1. School of Physical Science and Technology, Southwest University, Chongqing 400715 (China)
  2. (China)
Publication Date:
OSTI Identifier:
21325480
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review. D, Particles Fields; Journal Volume: 80; Journal Issue: 9; Other Information: DOI: 10.1103/PhysRevD.80.094021; (c) 2009 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; AMPLITUDES; CORRECTIONS; DISTRIBUTION; KAONS MINUS; KAONS PLUS; MATHEMATICAL SOLUTIONS; PARTICLE DECAY; PIONS MINUS; PIONS PLUS; PSEUDOSCALAR MESONS; QUARKS; SCATTERING; SINGULARITY; TRANSVERSE MOMENTUM; WAVE FUNCTIONS

Citation Formats

Zhou Mingzhen, Zhou Haiqing, and Department of Physics, Southeast University, Nanjing 211189. Two-pseudoscalar-meson decay of {chi}{sub cJ} with twist-3 corrections. United States: N. p., 2009. Web. doi:10.1103/PHYSREVD.80.094021.
Zhou Mingzhen, Zhou Haiqing, & Department of Physics, Southeast University, Nanjing 211189. Two-pseudoscalar-meson decay of {chi}{sub cJ} with twist-3 corrections. United States. doi:10.1103/PHYSREVD.80.094021.
Zhou Mingzhen, Zhou Haiqing, and Department of Physics, Southeast University, Nanjing 211189. Sun . "Two-pseudoscalar-meson decay of {chi}{sub cJ} with twist-3 corrections". United States. doi:10.1103/PHYSREVD.80.094021.
@article{osti_21325480,
title = {Two-pseudoscalar-meson decay of {chi}{sub cJ} with twist-3 corrections},
author = {Zhou Mingzhen and Zhou Haiqing and Department of Physics, Southeast University, Nanjing 211189},
abstractNote = {The decays of {chi}{sub cJ}{yields}{pi}{sup +}{pi}{sup -}, K{sup +}K{sup -} (J=0,2) are discussed within the standard and modified hard-scattering approach when including the contributions from twist-3 distribution amplitudes and wave functions of the light pseudoscalar meson. A model for twist-2 and twist-3 distribution amplitudes and wave functions of the pion and kaon with BHL prescription are proposed as the solution to the end-point singularities. The results show that the contributions from twist-3 parts are actually not power suppressed comparing with the leading-twist contribution. After including the effects from the transverse momentum of light meson valence-quark state and Sudakov factors, the decay widths of the {chi}{sub cJ} into pions or kaons are comparable with the their experimental data.},
doi = {10.1103/PHYSREVD.80.094021},
journal = {Physical Review. D, Particles Fields},
number = 9,
volume = 80,
place = {United States},
year = {Sun Nov 01 00:00:00 EDT 2009},
month = {Sun Nov 01 00:00:00 EDT 2009}
}