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    • The proton electromagnetic form factorF2 and quark orbital angular momentum

      Pankaj Jain John P Ralston

      Volume 61 Issue 5 November 2003 pp 987-992

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      Permanent link:
      https://www.ias.ac.in/article/fulltext/pram/061/05/0987-0992

    • Keywords

       

      Protein; electromagnetic form factors; perturbative QCD; quark orbital angular momentum

    • Abstract

       

      We analyse the proton electromagnetic form factor ratioR(Q2) =QF2(Q2)/F1(Q2) as a function of momentum transferQ2 within perturbative QCD. We find that the prediction for (R(Q2) at large momentum transferQ depends on the exclusive quark wave functions, which are unknown. For a wide range of wave functions we find thatQF2F1 ∼ const. at large momentum transfer, which is in agreement with recent JLAB data.

    • Author Affiliations

       

      Pankaj Jain1 John P Ralston2

      1. Physics Department, Indian Institute of Technology, Kanpur - 208 016, India
      2. Department of Physics and Astronomy, University of Kansas, Lawrence, KS - 66045, USA

    • Dates

       
      Published
      November 2003

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