L polarization in unpolarized hadron reactions.

Anselmino, ; Boer, ; Dalesio, ; Murgia,

Technical Information Center Oak Ridge Tennessee

关键词: Hadron reactions;    Hyperons;    Fragmentation;    Polarization;    Particle production;   

RP-ID  :  DE2001781129

学科分类：工程和技术（综合）

美国|英语

来源: National Technical Reports Library

【 摘 要 】

The transverse polarization observed in the inclusive production of (Lambda) hyperons in the high energy collisions of unpolarized hadrons is tackled by considering a new set of spin and (kappa)(perpendicular) dependent quark fragmentation functions. Simple phenomenological expressions for these new 'polarizing fragmentation functions' are obtained by a fit of the data on (Lambda)'s and (bar (Lambda))'s produced in p - N processes.