Speaker
Description
The study of nuclear systems consisting only of neutrons is an actual problem in nuclear physics. Interest to such systems increased after experimental works [1, 2] and theoretical calculations based on realistic nucleon-nucleon interactions (see for example [3, 4]), which declared the existence of a resonant state in a system of four neutrons (tetraneutron).
I present current progress in description of resonances in multineutron systems that have been obtained with SS-HORSE method [5] in combination with the ab initio No-Core Shell Model (NCSM) [6] with various realistic nucleon-nucleon interactions.
SS-HORSE-NCSM’s predictions for tetraneutron and trinuetron resonances have been published in [3, 7, 8].
[1] K. Kisamori et al., Phys. Rev. Lett. 116, 052501 (2016).
[2] M. Duer et al., Nature 606, 678 (2022).
[3] A. M. Shirokov et al., Phys. Rev. Lett. 117, 182502 (2016).
[4] J. G. Li et al., Phys. Rev. C 100, 054313 (2019).
[5] A. M. Shirokov et al., Phys. Rev. C 94, 064320 (2016).
[6] B. R. Barrett, P. Navrátil, J. P. Vary, Prog. Part. Nucl. Phys. 69, 131 (2013).
[7] A. M. Shirokov et al., AIP Conference Proceedings 2038, 020038 (2018).
[8] I. A. Mazur et al., Phys. Rev. C 110, 014004 (2024).
