Speaker
Kosho Minomo
(Kyushu University)
Description
Neutron removal reaction is an useful experimental tool to investigate weakly-bound nuclei. The removal cross section and momentum distribution of fragments give us the information about single particle state of the last neutron in projectile.
Very recently, we introduced an accurate method of treating the neutron removal reaction at intermediate incident energies induced by both nuclear and Coulomb interactions [1]. In the method, the nuclear and Coulomb breakup processes are consistently treated by the method of continuum discretized coupled channels without making the adiabatic approximation to the Coulomb interaction, so that the removal cross section calculated never diverges and is reliable even in the presence of the Coulomb interaction. This method is called eikonal reaction theory (ERT).
In this talk, I present the essence of ERT and this method is applied to one-neutron (1n) removal from 31Ne and two-neutron (2n) removal from 6He and 32Ne. For the analysis of 1n removal, the spectroscopic factor and asymptotic normalization coefficient of the last neutron in 31Ne are evaluated. For the analysis of 2n removal, we focus on the reaction mechanism of 2n removal. Especially, the effect of di-neutron correlation on this reaction is discussed.
Reference.
[1]M. Yahiro, K. Ogata, and K. Minomo, Prog. Theor. Phys. 126, 167 (2011).
Primary author
Kosho Minomo
(Kyushu University)
Co-authors
Prof.
Kazuyuki Ogata
(Research Center of Nuclear Physics (RCNP), Osaka University)
Prof.
Masanobu Yahiro
(Department of Physics, Kyushu University)
Dr
Takuma Matsumoto
(Department of Physics, Kyushu University)
