Eur. Phys. J. C 20, 301-311
On the behavior of F2 and its logarithmic slopesA.B. Kaidalov1, C. Merino2 and D. Pertermann3
1 ITEP, B. Cheremushkinskaya 25, 117259 Moscow, Russia
2 Departamento de Física de Partículas, Universidade de Santiago de Compostela, 15706 Santiago de Compostela, Spain
3 Physics Department, University-GH-Siegen, 57068 Siegen, Germany
(Received: 12 May 2000 / Revised version: 5 February 2001 / Published online: 11 May 2001 -© Springer-Verlag / Società Italiana di Fisica 2001)
It is shown that the CKMT model for the nucleon structure function F2, taken as the initial condition for the NLO evolution equations in perturbative QCD, provides a good description of the HERA data when presented in the form of the logarithmic slopes of F2 versus x and Q2 (Caldwell plot), in the whole available kinematic ranges. Also the results obtained for the behavior of the gluon component of a nucleon are presented.
© Società Italiana di Fisica, Springer-Verlag 2001