利用飞行中的$^4$He$(K^-, \pi^0)^4_\Lambda$H反应精确测量$^4_\Lambda$H超核的寿命
摘要：用在J-PARC强子设施的在飞行K- + 4He → 4ΛH + π0反应的方法首次有效地选取了超核束缚态，并通过比较（K-, π-）反应的数据，打开了系统研究同位旋配对超核的可能性。作为这种方法的第一次应用，对于4ΛH寿命，au(4ΛH) = 206 ± 8 (stat.) ± 12 (syst.) ps是迄今为止最精确的测量之一。我们还准备在不久的将来使用相同的设置来测量超氚（3ΛH）的寿命。
作者：T. Akaishi (1), H. Asano (2), X. Chen (3), A. Clozza (4), C. Curceanu (4), R. Del Grande (4), C. Guaraldo (4), C. Han (3), T. Hashimoto (5), M. Iliescu (4), K. Inoue (1), S. Ishimoto (6), K. Itahashi (2), M. Iwasaki (2), Y. Ma (2), M. Miliucci (4), R. Murayama (2), H. Noumi (1), H. Ohnishi (7), S. Okada (9), H. Outa (2), K. Piscicchia (4 and 10), A. Sakaguchi (1), F. Sakuma (2), M. Sato (6), A. Scordo (4), K. Shirotori (1), D. Sirghi (4 and 8), F. Sirghi (4 and 8), S. Suzuki (6), K. Tanida (5), T. Toda (1), M. Tokuda (1), T. Yamaga (2), X. Yuan (3), P. Zhang (3), Y. Zhang (3), H. Zhang (11), ((1) Osaka University, Osaka, Japan, (2) RIKEN, Wako, Japan, (3) Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, China, (4) Laboratori Nazionali di Frascati dell' INFN, Frascati, Italy, (5) Japan Atomic Energy Agency, Tokai, Japan, (6) High Energy Accelerator Research Organization (KEK), Tsukuba, Japan, (7) Tohoku University, Sendai, Japan, (8) Horia Hulubei National Institute of Physics and Nuclear Engineering (IFIN-HH), Magurele, Romania, (9) Chubu University, Kasugai, Japan, (10) CENTRO FERMI - Museo Storico della Fisica e Centro Studi e Ricerche Enrico Fermi, Rome, Italy, (11) Lanzhou University, Lanzhou, China)
论文ID：2302.07443
分类：Nuclear Experiment
分类简称：nucl-ex
提交时间：2023-08-29