超越中子滴线：非束缚氧同位素 25O 和 26O
核实验
2019-08-15 v4 核理论
摘要
本文对丰中子氧同位素 25O 和 26O 进行了实验与理论研究。在首次 R3B-LAND 实验中，通过相对论能量（约 450 MeV/nucleon）下 26F 和 27F 的质子敲出反应，在 GSI 布居了这些非束缚态。通过对衰变为 24O 加一个或两个中子的运动学完整测量，确定了 25O 的基态能量和寿命，并提取了 26O 基态的上限。此外，结果提供了 26O 中存在约 4 MeV 激发态的证据。将实验发现与基于手征两核子和三核子 (3N) 力的理论壳模型计算进行了比较，该计算首次包含了剩余 3N 力，并表明随着价中子的增加，这些力会被放大。
引用
@article{arxiv.1209.0156,
title = {Beyond the Neutron Drip-Line: The Unbound Oxygen Isotopes 25O and 26O},
author = {C. Caesar and J. Simonis and T. Adachi and Y. Aksyutina and J. Alcantara and S. Altstadt and H. Alvarez-Pol and N. Ashwood and T. Aumann and V. Avdeichikov and M. Barr and S. Beceiro and D. Bemmerer and J. Benlliure and C. A. Bertulani and K. Boretzky and M. J. G. Borge and G. Burgunder and M. Caamano and E. Casarejos and W. Catford and J. Cederkäll and S. Chakraborty and M. Chartier and L. Chulkov and D. Cortina-Gil and U. Datta Pramanik and P. Diaz Fernandez and I. Dillmann and Z. Elekes and J. Enders and O. Ershova and A. Estrade and F. Farinon and L. M. Fraile and M. Freer and M. Freudenberger and H. O. U. Fynbo and D. Galaviz and H. Geissel and R. Gernhäuser and P. Golubev and D. Gonzalez Diaz and J. Hagdahl and T. Heftrich and M. Heil and M. Heine and A. Heinz and A. Henriques and M. Holl and J. D. Holt and G. Ickert and A. Ignatov and B. Jakobsson and H. T. Johansson and B. Jonson and N. Kalantar-Nayestanaki and R. Kanungo and A. Kelic-Heil and R. Knöbel and T. Kröll and R. Krücken and J. Kurcewicz and M. Labiche and C. Langer and T. Le Bleis and R. Lemmon and O. Lepyoshkina and S. Lindberg and J. Machado and J. Marganiec and V. Maroussov and J. Menéndez and M. Mostazo and A. Movsesyan and A. Najafi and T. Nilsson and C. Nociforo and V. Panin and A. Perea and S. Pietri and R. Plag and A. Prochazka and A. Rahaman and G. Rastrepina and R. Reifarth and G. Ribeiro and M. V. Ricciardi and C. Rigollet and K. Riisager and M. Röder and D. M. Rossi and J. Sanchez del Rio and D. Savran and H. Scheit and A. Schwenk and H. Simon and O. Sorlin and V. Stoica and B. Streicher and J. Taylor and O. Tengblad and S. Terashima and R. Thies and Y. Togano and E. Uberseder and J. Van de Walle and P. Velho and V. Volkov and A. Wagner and F. Wamers and H. Weick and M. Weigand and C. Wheldon and G. Wilson and C. Wimmer and J. S. Winfield and P. Woods and D. Yakorev and M. V. Zhukov and A. Zilges and M. Zoric and K. Zuber and R3B collaboration},
journal= {arXiv preprint arXiv:1209.0156},
year = {2019}
}