Nonperturbative Corrections to the Dilepton Cross Section
classification
✦ hep-ph
keywords
crosssectiondileptonhighertermstwistaffectcalculated
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We study the sensitivity of the dilepton production cross section to higher twist terms. A method for calculating the resummed cross section is introduced in moment space, where the leading higher twist terms can be easily parametrized and calculated. We find that a $1/Q$ power correction may significantly affect the cross section at fixed-target energies.
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