DYNAMICAL PARTON DISTRIBUTIONS OF THE PROTON AND SMALL-X PHYSICS

被引:1264
作者
GLUCK, M [1 ]
REYA, E [1 ]
VOGT, A [1 ]
机构
[1] DESY, DEUTSCH ELEKTRONEN SYNCHROTRON, D-22603 HAMBURG, GERMANY
来源
ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS | 1995年 / 67卷 / 03期
关键词
D O I
10.1007/BF01624586
中图分类号
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号
摘要
The perturbative properties of parton distributions generated radiatively from a valence-like input at some low resolution scale are discussed with the aim of explaining the physical aspects underlying the reliability of the predicted distributions in the small-x region. Aspects of higher-twist (shadowing) effects as well as small-x resummations are discussed. Utilizing recent improved data at x greater than or similar to 10(-2) and a factorization scheme in which the heavy quarks c, b,..., are not entailed among the intrinsic (massless) parton distributions, we readjust our valence-like input and provide parametrizations of the slightly modified dynamical LO and NLO (($) over bar M ($) over bar S, DIS) predictions for parton distributions.
引用
收藏
页码:433 / 447
页数:15
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