Nonperturbative Corrections to the Dilepton Cross Section
  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. 
Lyndon Alvero (ITP, SUNY at Stony Brook)