近阈值质子-质子碰撞中的奇异数产生
核实验
2009-03-20 v1
摘要
在冷却同步加速器COSY上，近阈值条件下采集了 pp→ppK+K- 和 pp→pK+Λ/Σ0 反应的独占数据。在相同的超额能量下，与更高超额能量的数据相比，Λ/Σ0 比值提高了一个数量级。COSY-11装置获得的新结果探索了这种低能量Σ0抑制与60 MeV超额能量之间的过渡区域。首次测定了低于φ阈值的基本反K介子产生的总截面，该值比相同超额能量下K介子产生低两个数量级。
引用
@article{arxiv.nucl-ex/0302013,
title = {Strangeness Production in Proton-Proton Collisions Close to Threshold},
author = {By M. Wolke and H. -H. Adam and A. Budzanowski and R. Czyzykiewicz and D. Grzonka and M. Janusz and L. Jarczyk and B. Kamys and A. Khoukaz and K. Kilian and P. Kowina and T. Lister and P. Moskal and W. Oelert and T. Rozek and R. Santo and G. Schepers and T. Sefzick and M. Siemaszko and J. Smyrski and S. Steltenkamp and A. Strzalkowski and P. Winter and P. Wustner and W. Zipper},
journal= {arXiv preprint arXiv:nucl-ex/0302013},
year = {2009}
}
备注
4 pages, 2 figures, Talk given by P. Moskal at 16th International Conference on Particles and Nuclei (PANIC 02), Osaka, Japan, 30 Sep - 4 Oct 2002