Particle-antiparticle asymmetries of Λ production in hadron-nucleon collisions
Abstract
The particle-antiparticle asymmetries of Λ production in 250 GeV/cπ±, K±, and p-nucleon collisions are studied with two model parametrizations of quark to Λ fragmentation functions. It is shown that the available data can be qualitatively explained by the calculated results in both the quark-diquark model and a pQCD based analysis of fragmentation functions. The differences in the two model predictions are significant for K± beams, and high precision measurements of the asymmetries with detailed xF and PT information can discriminate between different predictions.
- Publication:
-
Physics Letters B
- Pub Date:
- September 2004
- DOI:
- 10.1016/j.physletb.2004.07.049
- arXiv:
- arXiv:hep-ph/0408022
- Bibcode:
- 2004PhLB..598..211M
- Keywords:
-
- 13.85.-t;
- 13.85.Ni;
- 13.87.Fh;
- 14.20.Jn;
- High Energy Physics - Phenomenology;
- High Energy Physics - Experiment;
- Nuclear Experiment;
- Nuclear Theory
- E-Print:
- 14 LaTex pages, 4 figures, to appear in Phys. Lett. B
