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Asymptotics and preasymptotics at small x | | G.P. Salam
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12 Dec 2004 | | Subject: | hep-ph | | Abstract: | This talk discusses the relative impact of running-coupling and other higher-order corrections on the small-x gluon-gluon splitting function. Comments are made on similarities with some aspects of the Balitsky-Kovchegov equation, which arise because of the presence of an effective infrared cutoff in both cases. It is emphasised that, at least in the splitting-function case, the asymptotic small-x behaviour has little relevance to the phenomenologically interesting preasymptotic region. This is illustrated with the aid of a convolution of the resummed splitting function with a toy gluon distribution. | | Source: | arXiv, hep-ph/0501097 | | Services: | Forum | Review | PDF | Favorites | |
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