Nuclear dependence of Q^2 evolution in the structure function F_2

Details Nuclear dependence of Q^2 evolution in the structure function F_2 Nuclear dependence of Q^2 evolution in the structure function F_2

1995-12-06

arxiv.org/abs/hep-ph/9512244v1

Phys.Lett. B378 (1996) 267-271

Physics

High Energy Physics

High Energy Physics - Phenomenology

10 pages, Latex, 2 eps figures. Complete postscript file including the figures is available at ftp://ftp.cc.saga-u.ac.jp/pub

Scientific paper

10.1016/0370-2693(96)00429-7

$Q^2$ evolution of the structure functions $F_2$ in tin and carbon nuclei is investigated in order to understand recent NMC measurements. $F_2$ is evolved by using leading-order DGLAP, next-to-leading-order DGLAP, and parton-recombination equations. NMC experimental result $\partial [F_2^{Sn}/F_2^C]/ \partial [\ln Q^2]\ne 0$ could be essentially understood by the difference of parton distributions in the tin and carbon nuclei. However, we find an interesting indication that large higher-twist effects on the $Q^2$ evolution could be ruled out. Nuclear dependence of the $Q^2$ evolution could be interesting for further detailed studies. 1. Introduction 2. Q^2 evolution of F_2 in tin and carbon nuclei 3. Conclusions

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