Electric-dipole transitions in 6Li with a fully microscopic six-body calculation

Exploring new excitation modes and the role of the nuclear clustering has been of great interest. An interesting speculation was made in the recent photoabsorption measurement of ^6 6 Li that implied the importance of the nuclear clustering. To understand the excitation mechanism of ^6 6 Li, we perform a fully microscopic six-body calculation on the electric-dipole ( E1 E 1 ) transitions and discuss how ^6 6 Li is excited by the E1 E 1 field as a function of the excitation energy. We show the various cluster components in the six-body wave functions and discuss the role of the nuclear clustering in the E1 E 1 excitations of ^6 6 Li.