九大原子核セミナー

2020年3月9日(月) 16:30〜18:00 17:00~18:30 (時間が変更になりました)

講師：渡邉 慎氏 (岐阜工業高等専門学校)
演題：Extracting each component from discretized breakup cross sections in multi-breakup-channel reactions
場所：ウェスト1号館7階 物理セミナー室2 (W1-A-722室)

概要(Abstract)：
The continuum-discretized coupled-channel method (CDCC) proposed in
Kyushu University is still one of the most powerful methods of
describing breakup reactions. As a dramatic development in the last
fifteen years, CDCC can treat multi-breakup-channel reactions beyond
simple three-body scattering, i.e., four-body CDCC and three-body
scattering with core excitation. For example, in 6Li scattering
(n+p+α+T, T is a target), the four-body-breakup channel (n+p+α+T)
and the three-body-breakup channel (d+α+T) coexist, and they are
coupled to each other during the scattering. In CDCC, those two
channels are precisely taken into account on an equal footing but the
corresponding breakup cross sections (BUXs) are obtained as an
admixture of these channels because of its discretization. It is
desired to separately calculate those BUXs. In this talk, we propose
an approximate method of extracting each component from the
discretized breakup cross sections. We show the validity of the
approximation method and discuss reaction dynamics beyond simple
three-body scattering.