Calculation of fragmentation functions in two-hadron semi-inclusive processes

被引:0
|
作者
Bianconi, A [1 ]
Boffi, S [1 ]
Boer, D [1 ]
Jakob, R [1 ]
Radici, M [1 ]
机构
[1] Univ Brescia, Dipartimento Chim & Fis Mat Ingn, I-25133 Brescia, Italy
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中图分类号
O57 [原子核物理学、高能物理学];
学科分类号
070202 ;
摘要
We investigate the properties of interference fragmentation functions arising from the emission of two leading hadrons inside the same jet for inclusive leptonuucleon deep-inelastic scattering. Using an extended spectator model for the mechanism of the hadronization, we give a complete calculation and numerical estimates for the examples of a proton-pion pair produced with invariant mass on the Roper resonance, and of two pions produced with invariant mass close to the p mass. We discuss azimuthal angular dependence of the leading order cross section to point up favourable conditions for extracting transversity from experimental data.
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页码:240 / 244
页数:5
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