Department of Physics, Isfahan University of Technology.
RIKEN, Nishina Center.
Proc Jpn Acad Ser B Phys Biol Sci. 2019;95(2):67-74. doi: 10.2183/pjab.95.006.
We have been studying the (Σπ) mass distribution based on data from an old Hydrogen Bubble Chamber collected by Thomas et al. concerning the p(π, K)Σπ reaction at p = 1.69 GeV/c. In this analysis we investigated the formation of the Λ(1405) state, using the Generalized Optical Theorem and T-matrix operator. We applied a combined transition operator, T, which contains T (=T) and T (= T) due to the initial channel mixing in the Λ(1405) formation. We also considered a possible mixture of I = 0 and 1 in the wave function, as well as some background of the Σ(1385) population.
我们一直在研究基于托马斯等人收集的旧氢气泡室数据的(Σπ)质量分布,这些数据涉及到 p = 1.69 GeV/c 时的 p(π, K)Σπ 反应。在这项分析中,我们使用广义光学定理和 T 矩阵算符研究了 Λ(1405)态的形成。我们应用了一个组合跃迁算符 T,由于 Λ(1405)形成中的初始通道混合,T 包含了 T(=T)和 T(= T)。我们还考虑了波函数中 I = 0 和 1 的可能混合,以及 Σ(1385)群体的一些背景。