Asymmetric parton distributions

被引:0
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作者
Radyushkin, AV [1 ]
机构
[1] Old Dominion Univ, Dept Phys, Norfolk, VA 23529 USA
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O412 [相对论、场论]; O572.2 [粒子物理学];
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摘要
Applications of perturbative QCD to hard exclusive electroproduction processes in the Bjorken limit at small invariant momentum transfer t bring in a new type of parton distributions which have hybrid properties, resembling both the parton distribution functions f(a)(x) and the distribution amplitudes. Their t-dependence is analogous to that of hadronic form factors. We discuss general properties of these new parton distributions, their relation to usual parton densities and the evolution equations which they satisfy.
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页码:553 / 557
页数:5
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