Gluon distribution and ln at small 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
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 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.