Model-independent results for SU(3) violation in twist-3 light-cone distribution functions
Journal Article
·
· Physical Review. D, Particles Fields
- Department of Physics, National Taiwan University, Taipei, Taiwan 10617 (China)
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, including the two-parton distributions {phi}{sub M}{sup p}, {phi}{sub M}{sup {sigma}}, and the three-parton distribution {phi}{sub M}{sup 3}. It is shown that terms nonanalytic 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{sub q} operators. With the symmetry violating corrections we derive useful model-independent relations between {phi}{sub {pi}}{sup p,{sigma},3}, {phi}{sub {eta}}{sup p,{sigma},3}, {phi}{sub K{sup +},K{sup 0}}{sup p,{sigma},3}, and {phi}{sub K{sup 0},K{sup -}}{sup p,{sigma},3}. We also comment on the calculations of the moments of these distributions using lattice QCD and light-cone sum rules.
- OSTI ID:
- 20776857
- Journal Information:
- Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 5 Vol. 73; ISSN PRVDAQ; ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
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