Study of proton-resonances in the $^{19}$Ne(d,n)$^{20}$Na reaction using RESONEUT detector system

Studies of nucleosynthesis in stellar explosions reveal that obtaining relevant information on the lowest lying resonances is crucial step to determine reaction rates in the astrophysical rp-process. In previous experiments at the RESOLUT facility, (d,n) reaction in inverse kinematics has been used to populate these resonances of astrophysical interest [1]. For such measurements, a compact neutron detector array RESONEUT has been developed which can efficiently detect low energy neutrons from (d,n) reaction [1]. In the present paper, results from our recently performed radioactive-beam experiment studying $^{19}$Ne(d,n)$^{20}$Na reaction using RESONEUT will be presented. This reaction is comparable to direct proton capture $^{19}$Ne(p,$\gamma$)$^{20}$Na, which is of astrophysical significance. Results from previous studies indicate the contradictions in spin and parity assignment of the first proton resonance in $^{20}$Na. So, we study the population of the lowest lying proton resonances in $^{20}$Na using neutron time of flight spectroscopy in an attempt to resolve these contradictions and determine accurate information of reaction rate. [1]S. Kuvin et al, PRC 96, 045812 (2017)