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

Bianconi, ; Boffi, ; Boer, ; Jakob, ; Radici,

Technical Information Center Oak Ridge Tennessee

关键词: Neutron stars;    Pair production;    Cross sections;    Deep inelastic scattering;    Fragmentation;   

RP-ID  :  DE2001781130

学科分类：工程和技术（综合）

美国|英语

来源: National Technical Reports Library

【 摘 要 】

We investigate the properties of interference fragmentation functions arising from the emission of two leading hadrons inside the same jet for inclusive lepton-nucleon 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 (rho) mass. We discuss azimuthal angular dependence of the leading order cross section to point up favourable conditions for extracting transversity from experimental data.