Model Independent Results for SU(3) Violation in Light-Cone Distribution Functions
arXiv:hep-ph/0311285 · doi:10.1103/PhysRevLett.92.202001
Abstract
Using chiral symmetry we investigate the leading SU(3) violation in light-cone distribution functions phi_M(x) of the pion, kaon, and eta. It is shown that terms non-analytic in the quark masses do not affect the shape, and only appear in the decay constants. Predictive power is retained including the leading analytic m_q operators. With the symmetry violating corrections we derive useful model independent relations between phi_pi, phi_eta, and phi_K. Using the soft-collinear effective theory we discuss how factorization generates the subleading chiral coefficients.
4 pages
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