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Model-Independent Results for SU(3) Violation in Twist-3 Light-Cone Distribution Functions

Jiunn-Wei Chen·Hung-Ming Tsai·Ke-Chuan Weng
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Abstract

Using chiral symmetry we investigate the leading SU(3) violation in the complete set of quark twist-3 light-cone distribution functions 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 normalization constants. Predictive power is retained including the leading analytic m_{q} operators. With the symmetry violating corrections we derive useful model-independent relations between the distributions of pion, kaon and eta. We also comment on the calculations of the moments of these distributions using lattice QCD and light-cone sum rules.

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Jiunn-Wei Chen, Hung-Ming Tsai, Ke-Chuan Weng. 2006-03-15. Model-Independent Results for SU(3) Violation in Twist-3 Light-Cone Distribution Functions. https://doi.org/10.1103/physrevd.73.054010

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