p+U碰撞产生的超核中Λ超子寿命
核实验
2009-03-20 v1
摘要
通过观察在质子-铀碰撞(Tp = 1.9 GeV)中产生的重超核的延迟裂变，研究了Λ超子的非介子衰变。本工作获得的约 A ≈ 220 的重超核寿命，即 τ = 138 ± 6 (统计) ± 17 (系统) ps，是迄今为止在质子和反质子诱导的铀靶碰撞中产生的重超核最精确的结果。PACS: {13.30.-a}{重子衰变} {13.75.Ev}{超子-核子相互作用} {21.80}{超核} {25.80.Pw}{超子诱导反应}
引用
@article{arxiv.nucl-ex/0108027,
title = {The lifetime of the Lambda hyperon bound in hypernuclei produced by p+U collisions},
author = {P. Kulessa and W. Cassing and L. Jarczyk and B. Kamys and H. Ohm and K. Pysz and Z. Rudy and H. Stroeher},
journal= {arXiv preprint arXiv:nucl-ex/0108027},
year = {2009}
}
备注
16 pages, 4 Postscript figures, uses file appolb.cls (included), submitted to Acta Physica Polonica B, http://th-www.if.uj.edu.pl/acta