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    • Keywords


      Structure functions; polarization; sum rules; quantum chromodynamics

    • Abstract


      We analyze the various inputs that go into computing the recently measured first moment of the proton spin structure functiong1p(x). The basic inputs are the various valence and sea quark polarisations and the gluonic contribution coming through axial anomaly. We show that the quark model predictions for valence quark polarisations, suitably modified to accommodate Bjorken sum rule, are consistent with measured value of moment of the spin structure function.

    • Author Affiliations


      MVN Murthy1 V Ravindran1

      1. The Institute of Mathematical Sciences, Madras - 600 113, India
    • Dates

  • Pramana – Journal of Physics | News

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      Posted on July 25, 2019

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