质子-质子碰撞中近阈值K+K-介子对产生
核实验
2009-03-20 v3
摘要
在冷却同步加速器COSY上利用COSY-11装置，于超额能量Q = 17 MeV下研究了通过反应pp --> ppK+K-产生K+K-介子对的近阈值总截面和角分布。所获得的截面以及Q = 3 MeV超额能量下的上限代表了小超额能量区域中K+K-产生的首次测量，在该区域中通过通道pp --> ppΦ --> ppK+K-的产生在能量上被禁止。讨论了经由中间标量态f0(980)和a0(980)的共振产生的可能影响。
引用
@article{arxiv.nucl-ex/0103001,
title = {Near Threshold K+K- Meson-Pair Production in Proton-Proton Collisions},
author = {C. Quentmeier and H. -H. Adam and J. T. Balewski and A. Budzanowski and D. Grzonka and L. Jarczyk and A. Khoukaz and K. Kilian and P. Kowina and N. Lang and T. Lister and P. Moskal and W. Oelert and R. Santo and G. Schepers and T. Sefzick and S. Sewerin and M. Siemaszko and J. Smyrski and A. Strzalkowski and M. Wolke and P. Wuestner and W. Zipper},
journal= {arXiv preprint arXiv:nucl-ex/0103001},
year = {2009}
}
备注
8 pages, 6 figures, replaced with revised version, accepted for publication in Phys. Lett. B