Initial and Final State Interaction Effects in Small-x Quark Distributions

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We study the initial and final state interaction effects in the transverse momentum dependent parton distributions in the small-x saturation region. In particular, we discuss the quark distributions in the semi-inclusive deep inelastic scattering, Drell-Yan lepton pair production and dijet-correlation processes in pA collisions. We calculate the quark distributions in the scalar-QED model and then extend to the color glass condensate formalism in QCD. The quark distributions are found universal between the DIS and Drell-Yan processes. On the other hand, the quark distribution from the qq'-->qq' channel contribution to the dijet-correlation process is not universal. However, we find that it ... continued below

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Xiao, Bo-Wen & Yuan, Feng August 30, 2010.

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We study the initial and final state interaction effects in the transverse momentum dependent parton distributions in the small-x saturation region. In particular, we discuss the quark distributions in the semi-inclusive deep inelastic scattering, Drell-Yan lepton pair production and dijet-correlation processes in pA collisions. We calculate the quark distributions in the scalar-QED model and then extend to the color glass condensate formalism in QCD. The quark distributions are found universal between the DIS and Drell-Yan processes. On the other hand, the quark distribution from the qq'-->qq' channel contribution to the dijet-correlation process is not universal. However, we find that it can be related to the quark distribution in DIS process by a convolution with the normalized unintegrated gluon distribution in the CGC formalism in the large Nc limit.

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  • Journal Name: Physical Review D

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  • Report No.: LBNL-4077E
  • Grant Number: DE-AC02-05CH11231
  • Office of Scientific & Technical Information Report Number: 1000854
  • Archival Resource Key: ark:/67531/metadc845617

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  • August 30, 2010

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  • May 19, 2016, 3:16 p.m.

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  • June 15, 2016, 8:43 p.m.

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Xiao, Bo-Wen & Yuan, Feng. Initial and Final State Interaction Effects in Small-x Quark Distributions, article, August 30, 2010; Berkeley, California. (digital.library.unt.edu/ark:/67531/metadc845617/: accessed September 22, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.