$\Lambda$p 与 $\Sigma^0$p 末态下 K$^-$ 多核子吸收截面与分支比
核实验
2019-03-13 v2
摘要
本文介绍了 AMADEUS 合作组对 p 和 p 末态下低能 K 多核子吸收过程截面与分支比的测定。在 DANE 对撞机上产生的低动量 K( 127 MeV/c)轰击 KLOE 探测器内的碳靶,通过将实验数据与唯象计算比较,区分了双核子与三核子吸收过程。p 能谱用 K 多核子吸收过程解释;证明了 Kpp 束缚态的可能贡献与双核子俘获过程重叠,因此其绝对产额不可区分。
引用
@article{arxiv.1809.07212,
title = {K$^-$ multi-nucleon absorption cross sections and branching ratios in $\Lambda$p and $\Sigma^0$p final states},
author = {R. Del Grande and K. Piscicchia and O. Vazquez Doce and M. Cargnelli and C. Curceanu and L. Fabbietti and J. Marton and P. Moskal and A. Ramos and A. Scordo and D. Sirghi and M. Skurzok and S. Wycech and J. Zmeskal and E. Czerwinski and V. De Leo and P. Fermani and G. Mandaglio and M. Martini and N. Raha and A. Selce and M. Silarski},
journal= {arXiv preprint arXiv:1809.07212},
year = {2019}
}