naa a22 4500 510766595 CHVBK 20180411083158.0 cr unu---uuuuu 180411e20130101xx s 000 0 eng 10.1007/s12043-012-0460-9 doi (NATIONALLICENCE)springer-10.1007/s12043-012-0460-9 Unpolarized coupled DGLAP evolution equation at small- x [Elektronische Daten] [SAURAV BHATTACHARJEE, RANJIT BAISHYA, JAYANTA SARMA] In this paper, we have obtained the solution of the unpolarized coupled Dokshitzer-Gribove-Lipatov-Alterelli-Parisi (DGLAP) evolution equation in leading order at the small-x limit. Here, we have used a Taylor series expansion, separation of functions and then the method of characteristics to solve the evolution equations. We have also calculated t-evolution of singlet and gluon distribution functions and the results are compared with E665 and NNPDF data for singlet structure function and GRV1998 and MRST2004 gluon parametrizations. It is shown that our results are in good agreement with the parametrizations especially at small-x and high-Q 2 region. From global parametrizations and our results, we have seen that the singlet and gluon distribution functions increase when Q 2 increases for fixed values of x. Indian Academy of Sciences, 2012 Deep inelastic scattering nationallicence Dokshitzer-Gribove-Lipatov-Alterelli-Parisi equation nationallicence small- x nationallicence method of characteristics nationallicence structure function nationallicence BHATTACHARJEE SAURAV Department of Physics, Tezpur University, 784 028, Napaam, India aut BAISHYA RANJIT Department of Physics, J.N. College, 781 123, Boko, India aut SARMA JAYANTA Department of Physics, Tezpur University, 784 028, Napaam, India aut Pramana Springer-Verlag 80/1(2013-01-01), 61-68 0304-4289 80:1<61 2013 80 12043 https://doi.org/10.1007/s12043-012-0460-9 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s12043-012-0460-9 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- BHATTACHARJEE SAURAV Department of Physics, Tezpur University, 784 028, Napaam, India aut NATIONALLICENCE 700 1- BAISHYA RANJIT Department of Physics, J.N. College, 781 123, Boko, India aut NATIONALLICENCE 700 1- SARMA JAYANTA Department of Physics, Tezpur University, 784 028, Napaam, India aut NATIONALLICENCE 773 0- Pramana Springer-Verlag 80/1(2013-01-01), 61-68 0304-4289 80:1<61 2013 80 12043 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer