Temperature dependence of the GDR width in 120Sn

Giant dipole resonance in proton capture reactions using an extended quantum molecular dynamics model

“…On the other hand, the temperature induces additional shape fluctua- * ygma@sinap.ac.cn † zhangguoqiang@sinap.ac.cn ‡ Present address: Institute of Modern Physics, Fudan University, Shanghai 200433, China tion in nucleus, which broadens the FWHM of the GDR [15]. It is commonly recognized that, at low temperature, T < 1.5 MeV, FWHM remains almost stable due to shells effect and thermal pairing effect [14][15][16][17][18][19], while at moderate temperature, 1.5 ≤ T ≤ 2.5 − 3 MeV, it increases sharply [14,15,20]. However, at high temperature, T ≥ 4 MeV, there still exists strong debates on whether the FWHM gets saturated or not [14,21,22].…”

“…There are several ways to excite the GDR mode, such as heavy ion collision [16,22], inelastic scattering [17,19,20], and proton capture [23][24][25][26][27] etc. In previous publications, we have studied the collective resonances within transport models [7,[28][29][30][31][32][33], including pygmy dipole resonance (PDR) [28,33], giant dipole resonance (GDR) [28,30,32,33] as well as giant monopole resonance (GMR) [29] by heavy ion collisions.…”