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arXiv · hep-ph/0008186

Lambda polarization from unpolarized quark fragmentation

M. Anselmino·D. Boer·U. D'Alesio·F. Murgia
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Abstract

The longstanding problem of explaining the observed polarization of Lambda hyperons inclusively produced in the high energy collisions of unpolarized hadrons is tackled by considering spin and k_T dependent quark fragmentation functions. The data on Lambda's and Lambda-bar's produced in p-N processes are used to determine simple phenomenological expressions for these new "polarizing fragmentation functions", which describe the experiments remarkably well.

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M. Anselmino, D. Boer, U. D'Alesio, F. Murgia. 2000-08-17. Lambda polarization from unpolarized quark fragmentation. https://doi.org/10.1103/physrevd.63.054029

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