Evolution equations for extended dihadron fragmentation functions
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- 作者：Federico A. Ceccopieri ; Marco Radici ; Aless ; ro Bacchetta
- 刊名：Physics Letters B
- 出版年：2007
- 出版时间：21 June 2007
- 年：2007
- 卷：650
- 期：1
- 页码：81-89
- 全文大小：211 K
文摘
We consider dihadron fragmentation functions, describing the fragmentation of a parton in two unpolarized hadrons, and in particular extended dihadron fragmentation functions, explicitly dependent on the invariant mass, abeec2dd33c51c05a55"" title=""Click to view the MathML source"">Mh, of the hadron pair. We first rederive the known results on Mh-integrated functions using jet calculus techniques, and then we present the evolution equations for extended dihadron fragmentation functions. Our results are relevant for the analysis of experimental measurements of two-particle-inclusive processes at different energies.