https://doi.org/10.1140/epja/s10050-021-00390-2
Regular Article - Theoretical Physics
Final state interaction in the pn and nn decay channels of 
He
Department of Physics and Astronomy, Texas A&M University-Commerce, 75429, Commerce, TX, USA
Received:
27
October
2020
Accepted:
5
February
2021
Published online:
22
February
2021
We study the effects of final state interactions in the non-mesonic weak decay 
(n is a neutron and N is either a neutron or a proton) of the hypernucleus 
He. Using a three-body model the effects of distortion of the interaction of the emitted nucleon pair with the residual nucleus is considered. We also study the influence of the final state interaction between the emitted nucleons using the Migdal-Watson model. The effect of spin symmetries in the final state of the pair is also considered. Based on our calculations, we conclude that final state interactions play a minor role in the kinetic energy spectrum of the emitted nucleon pair.
© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2021
