Multiple scattering, parton energy loss and modified fragmentation functions in deeply inelastic e A scattering

May, 2000
4 pages
Published in:
  • Phys.Rev.Lett. 85 (2000) 3591-3594
e-Print:
Report number:
  • LBNL-45631,
  • LBL-45631

Citations per year

20002006201220182024051015202530
Abstract: (arXiv)
Modified quark fragmentation functions in deeply inelastic eAeA collisions and their QCD evolution equations are derived for the first time in the framework of multiple parton scattering. Induced radiation gives rise to additional terms in the evolution equations and thus softens the modified quark fragmentation functions. The results in the next-leading-twist depend on both diagonal and off-diagonal twist-four parton distributions and the combination of which clearly manifests the LPM interference pattern. The predicted modification depends quadratically on the nuclear size (A2/3A^{2/3}). Generalization to the case of hot QCD medium is also discussed.
Note:
  • 4 Pages in RevTex with 2 ps figures, final version in Phys. Rev. Lett
  • electron nucleus: deep inelastic scattering
  • electron nucleus: inclusive reaction
  • hadron: electroproduction
  • multiple scattering: parton
  • energy loss
  • fragmentation function
  • gluon: radiation
  • effect: higher-twist
  • numerical calculations