Transverse Lambda polarization in semi-inclusive DIS

Details Transverse Lambda polarization in semi-inclusive DIS Transverse Lambda polarization in semi-inclusive DIS

2001-09-20

arxiv.org/abs/hep-ph/0109186v2

Phys.Rev. D65 (2002) 114014

Physics

High Energy Physics

High Energy Physics - Phenomenology

LaTeX, 28+1 pages, 9 ps figures, uses epsfig.sty; v2: largely revised version, 22+1 pages, 3 ps figures; to be published in Ph

Scientific paper

10.1103/PhysRevD.65.114014

Following a previous description of Lambda and Lambda-bar polarization in unpolarized p-p interactions, within a perturbative QCD factorization scheme with new polarizing fragmentation functions, here we investigate the transverse polarization of Lambda's and Lambda-bar's produced in semi-inclusive DIS. Analytical expressions for both neutral and charged current exchange are given. Since quantitative predictions cannot be given at this stage and comparison with existing data are not yet significant, we present the general formalism and a qualitative analysis displaying generic features of the Lambda and Lambda-bar polarization for specific scenarios. Different kinematical situations are considered, corresponding to experiments currently able to study Lambda production in semi-inclusive DIS.

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