Shell model states in the continuum: tetraneutron resonance
Andrey M. Shirokov
Moscow State University, Institute for Nuclear Physics
Fri, Jun. 23rd 2017, 11:00
Bat 703, p 135 salle visio-conférence, CEA Saclay, Orme des Merisiers

Theoretical studies and experimental searches for a bound or resonant state in a system of four neutrons (tetraneutron) were started more than 50 years ago. The first experimental observation of the tetraneutron resonance was reported in 2016. I shall discuss the theoretical description of the low-energy tetraneutron resonance consistent with the experiment which however has a poor statistics and hence large error bars. This description is based on ab initio calculations within the no-core shell model extended to the description of four-body continuum within the democratic decay approximation.

Contact : Andrea FERRERO
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