文章基本信息

标题：Transverse momentum of partons: from low to high pT
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作者：M. DIEHL
期刊名称：PoS - Proceedings of Science
印刷版ISSN：1824-8039
出版年度：2008
卷号：2008
出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：Transverse-momentumspectra in hard processes are typically described either in terms of intrinsic transversemomentumof partons, or in terms of perturbative radiation. The relation between these descriptions is discussed for the example of semi-inclusive deep inelastic scattering, with special focus on the angular distribution of the observed hadron. This involves nontrivial theoretical issues, such as the proper definition of transverse-momentumdependent parton distributions, and has practical consequences for the description of pT spectra in phenomenology.