Structure functions are not Parton probabilities

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• 作者：Hoyer ; Paul
• 刊名：Nuclear Physics B - Proceedings Supplements
• 出版年：2003
• 期刊代码：46_09205632
• 类别：ph
• 出版时间：April, 2003
• 卷：117
• 期：Supplement
• 页码：262-264
• 文件大小：502 K

摘要

Parton distributions given by deep inelastic lepton scattering (DIS) are not equal to the probabilities of finding those partons in the parent wave function. Soft rescattering of the struck parton within the coherence length of the hard process influences the DIS cross section and gives dynamical phases to the scattering amplitudes. This gives rise to diffractive DIS, shadowing in nuclear targets and transverse spin asymmetry.