“School of Particles And Accelerator”

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Paper   IPM / Particles And Accelerator / 11437
School of Particles and Accelerator
  Title:   A new approach to calculate the gluon polarization
1.  Fatemeh Taghavi-Shahri
2.  Abolfazl Mirjalili
3.  Mohammad Mehdi Yazdanpanah
  Status:   Published
  Journal: Eur. Phys. J. C
  No.:  71
  Vol.:  1590
  Year:  2011
  Pages:   1-7
  Supported by:  IPM
We derive the Leading-Order(LO) master equation to extract the polarized gluon distribution G(x,Q2)=x δg(x,Q2) from polarized proton structure function, gp1(x,Q2). By using a Laplace-transform technique, we solve the master equation and derive the polarized gluon distribution inside the proton. The test of accuracy which is based in our calculations on two different methods, confirms that we achieve to the correct solution for the polarized gluon distribution. To determine the polarized gluon distribution x δg(x,Q2) more accuratly , we only need to have more experimental data on the polarized structure functions, g1p(x,Q2). Our result for polarized gluon distribution is in good agreement with some phenomenological models.

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