Higher Twist Effects in Parton Physics

• Main Authors: HUNG-MING TSAI, 蔡竑名
• Other Authors: Jiunn-Wei Chen
• Format: Others
• Language: en_US
• Published: 2005
• Online Access: http://ndltd.ncl.edu.tw/handle/08933236486289369586

碩士 === 國立臺灣大學 === 物理研究所 === 93 === In this thesis, we find out model-independent results for SU(3) violation in higher twist light-cone distribution amplitudes as well as in parton distribution functions. In these results, analytic corrections to moments of twist-3 light-cone distribution amplitudes are obtained while non-analytic corrections don''t affect the shape and only contribute to the pre-factor. Some relations among moments of light-cone distribution amplitudes of pion, kaon and eta are worked out. Non-analytic and analytic corrections to the moments of parton distribution functions are derived. Besides, the relation among favor-singlet odd moments of parton distribution functions of pion, kaon and eta is also found out. It is hopeful that the eta parton distribution function is possible to be derived if experimental values of pion and kaon parton distribution functions are both obtained.