Higher-twist effects in deep-inelastic scattering |
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| Authors: | Edmond L Berger |
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| Institution: | 1. Stanford Linear Accelerator Center, Stanford University, Stanford, CA 94305, USA |
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| Abstract: | Non-scaling, non-factorizing 1/Q2 contributions to cross sections are derived for semi-inclusive deep-inelastic scattering, ?N → ?′πX. These higher twist terms are dominant at large z = pπ · pN/Q · pN. They provide unusual (1 ? y) terms in the cross section. as well as asymmetries in the azimuthal angle dependence. Calculations are also presented for the quark to pion fragmentation function Dπ(z, Q2). |
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