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Anti-Lambda polarization in high energy pp collisions with polarized beam

Qing-hua Xu·Zuo-tang Liang·Ernst Sichtermann
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Abstract

We study the polarization of the anti-Lambda particle in polarized high energy pp collisions at large transverse momenta. The anti-Lambda polarization is found to be sensitive to the polarization of the anti-strange sea of the nucleon. We make predictions using different parameterizations of the polarized quark distribution functions. The results show that the measurement of longitudinal anti-Lambda polarization can distinguish different parameterizations, and that similar measurements in the transversely polarized case can give some insights into the transversity distribution of the anti-strange sea of nucleon.

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Qing-hua Xu, Zuo-tang Liang, Ernst Sichtermann. 2006-04-14. Anti-Lambda polarization in high energy pp collisions with polarized beam. https://doi.org/10.1103/physrevd.73.077503

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