https://doi.org/10.1140/epjc/s10052-011-1590-9
Regular Article - Theoretical Physics
A new approach to calculate the gluon polarization
1
School of Particles and Accelerators (IPM), Institute for Research in Fundamental Sciences, P.O. Box 19395-5531, Tehran, Iran
2
Physics Department, Yazd University, P.O. Box 89195-741, Yazd, Iran
3
Physics Department, Kerman Shahid Bahonar University, Kerman, Iran
* e-mail: Mirjalili@ipm.ir
Received:
14
October
2010
Revised:
14
January
2011
Published online:
10
March
2011
We derive the Leading-Order (LO) master equation to extract the polarized gluon distribution G(x,Q
2)=xδg(x,Q
2) from polarized proton structure function, 
. 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 xδg(x,Q
2) more accurately, we only need to have more experimental data on the polarized structure functions, 
. Our result for polarized gluon distribution is in good agreement with some phenomenological models.
© Springer-Verlag / Società Italiana di Fisica, 2011
