کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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1845304 | 1528127 | 2007 | 4 صفحه PDF | دانلود رایگان |

At the COMPASS experiment at CERN, Λ and particles are produced with high statistics in deep inelastic scattering processes of 160 GeV/c polarized μ+ off a 6LiD target. The main focus of the research is the understanding of the longitudinal Λ and polarization and the spin transfer mechanism from quarks to hadrons through the fragmentation process. The results provide useful information to test different model predictions, which describe spin effects in hyperon production and the quark-antiquark asymmetry of the nucleon spin structure such as the polarization of s and quarks in the nucleon. Preliminary results from data collected during 2002 and 2003 are presented for the current fragmentation region. We will compare our results with other measurements and discuss the dependence of the Λ and polarization on various kinematic variables.
Journal: Nuclear Physics B - Proceedings Supplements - Volume 167, May 2007, Pages 106-109