Lambda polarization from unpolarized quark fragmentation
高能物理 - 唯象学
2009-10-31 v1
摘要
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.
引用
@article{arxiv.hep-ph/0008186,
title = {Lambda polarization from unpolarized quark fragmentation},
author = {M. Anselmino and D. Boer and U. D'Alesio and F. Murgia},
journal= {arXiv preprint arXiv:hep-ph/0008186},
year = {2009}
}
备注
LaTeX, 21+1 pages, 6 eps figures, uses epsfig.sty