Description of transfer reactions with coupled-channels Born approximation

チャネル結合Born近似を用いた移行反応の記述

福井 徳朗; 延与 佳子*; 菊地 右馬*; 松本 琢磨*; 緒方 一介*; 須原 唯広*; 谷口 億宇*; 八尋 正信*

Fukui, Tokuro; Kanada-En'yo, Yoshiko*; Kikuchi, Yuma*; Matsumoto, Takuma*; Ogata, Kazuyuki*; Suhara, Tadahiro*; Taniguchi, Yasutaka*; Yahiro, Masanobu*

First, we show that, for the coupled-channels Born approximation (CCBA) analysis of the reaction, it is essentially important to consider the transfer process from (to) the breakup state of (). These transfer process called the breakup transfer is never taken into account in the distorted-wave Born approximation (DWBA). Next, the importance of the CCBA model is given for the description of the -transfer reaction, of which, so far the DWBA has been failed to produce the cross section to be consistent with measured one. Our calculation greatly improves coincidence of the calculation with the data and enables us to discuss the surface distribution of the -cluster structure of . Finally, how to describe transfer reaction to continuum state, such as , is presented. It is known that the integration in the transition matrix ( matrix) of such reaction does not converge. To avoid this problem, the prior form of the matrix, for which the CCBA model is required to calculate the approximately exact wave function of the final channel, is employed.