Interplay of Hard and Soft Processes at JLAB Energies

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Even at moderate energy machines, there is a regime where hard pion electroproduction proceeds by a perturbatively calculable process. The process, we claim, is not the leading twist fragmentation one but a rather higher twist process that produces kinematically isolated pions. Semiexclusive data may teach us more about parton distribution functions of the target and the pion distribution amplitude. In addition, there is a connection to generalized parton distribution calculations of exclusive processes in that the perturbative kernel is the same.

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289 Kilobytes pages

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Afanasev, Andrei & Carlson, Carl E. July 1, 2002.

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Description

Even at moderate energy machines, there is a regime where hard pion electroproduction proceeds by a perturbatively calculable process. The process, we claim, is not the leading twist fragmentation one but a rather higher twist process that produces kinematically isolated pions. Semiexclusive data may teach us more about parton distribution functions of the target and the pion distribution amplitude. In addition, there is a connection to generalized parton distribution calculations of exclusive processes in that the perturbative kernel is the same.

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289 Kilobytes pages

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  • GDH 2002, Genoa (IT), 07/2002

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  • Report No.: JLAB-THY-02-54
  • Report No.: DOE/ER/40150-2288
  • Grant Number: AC05-84ER40150
  • Office of Scientific & Technical Information Report Number: 803298
  • Archival Resource Key: ark:/67531/metadc741597

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  • July 1, 2002

Added to The UNT Digital Library

  • Oct. 19, 2015, 7:39 p.m.

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  • Feb. 5, 2016, 8:11 p.m.

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Afanasev, Andrei & Carlson, Carl E. Interplay of Hard and Soft Processes at JLAB Energies, article, July 1, 2002; Newport News, Virginia. (digital.library.unt.edu/ark:/67531/metadc741597/: accessed August 20, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.