2018 Impact factor 4.843
Particles and Fields
Eur. Phys. J. C 2, 301-305

Gluon distribution and $\bf{dF_2/d}$ ln$\bf{Q^2}$ at small $\bf{x}$in the next-to-leading order

D.K. Choudhury1 - Ranjita Deka2 - A. Saikia3

1 Department of Physics, Gauhati University, Guwahati 781 014, India
2 Department of Physics, Pragjyotish College, Guwahati 781 009, India
3 Department of Physics, Arya Vidyapith College, Guwahati 781 016, India

Received: 28 April 1997

Abstract
We obtain an approximate form of gluon momentum density G(x, Q2) from next to leading order (NLO) GLAP equation at low x, with a factorization ansatz recently reported and test its validity by comparing it with that of Glück, Reya and Vogt (GRV-HO) which has no such additional assumption. Using Prytz's approximate method, we calculate $dF_2/d\log Q^2$ using LO and NLO forms of gluon density. Limitation of the present formalism is critically discussed and approximate factorizability zone in (x-Q2) plane is indicated.


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