利用HADES测量pp和CC碰撞中的双轻子产生
核实验
2008-11-26 v1
摘要
利用“高接受度双电子谱仪”(HADES)测量了双轻子产生。在动能束流能量2.2 GeV的pp碰撞中,重建了排他性eta产生及其Dalitz衰变eta -> gamma e+e-。电磁形状因子与已有数据吻合良好。此外,给出了2A GeV下C+C反应的包含性e+e-能谱,并与热模型作了比较。
引用
@article{arxiv.nucl-ex/0610048,
title = {Dilepton production in pp and CC collisions with HADES},
author = {HADES collaboration and I. Froehlich},
journal= {arXiv preprint arXiv:nucl-ex/0610048},
year = {2008}
}
备注
11 pages, 3 figures, proceedings of the IVth International Conference on Quarks and Nuclear Physics, Madrid, June 5th-10th, submitted to Eur.Phys.J.A