通过ϕ介子产生干涉在p(γ,K_s)X中观测到窄结构
高能物理 - 实验
2013-05-30 v3 高能物理 - 唯象学
核实验
摘要
我们报告在反应γ+p = pK_sK_L中K_s缺失质量处~1.54 GeV、高斯宽度σ=6 MeV的窄峰结构的观测。观测到的结构可能源于pK_L系统中奇异（或反奇异）重子共振与ϕ(K_sK_L)光产生之间的干涉，两者导致相同的末态。以共振信号+背景假设与基于ϕ产生的仅背景假设的对数似然比估计的观测事件过剩的统计显著性为5.3σ。
引用
@article{arxiv.1110.3325,
title = {Observation of a narrow structure in p(gamma,K_s)X via interference with phi-meson production},
author = {M. J. Amaryan and G. Gavalian and C. Nepali and M. V. Polyakov and Ya. Azimov and W. J. Briscoe and G. E. Dodge and C. E. Hyde and F. Klein and V. Kuznetsov and I. Strakovsky and J. Zhang},
journal= {arXiv preprint arXiv:1110.3325},
year = {2013}
}
备注
Accepted for publication in Physical Review C, 9 pages, 11 figures, 1 table added, revised