【摘要】 用ＢＮＶ方程讨论了中能重离子反应形成的热核单极巨共振（ＧＭＲ）的驰豫过程．计算表明，球形热核ＧＭＲ振荡是各向同性的，共振能与ＥＧＭＲ＝８０Ａ－１／３公式给出的数值基本一致．核子碰撞和粒子逃逸是引起热核ＧＭＲ阻尼衰减的主要原因．更多还原

【Abstract】 The relaxation of the isoscalar giant monopole resonance (GMR)in hot nuclei produced in heavy-ion reaction is discussed in the frame of the Boltzmann-Nordherin-Vlasov equation.The oscillation of the GMR in the spherical hot nuclei is isotropic.The calculated GMR energy is approximately equal to that resulting from the formula EGMR=80A-1/3.The nucleon collision as well as the particle escape are the dominant reasons of the relaxation of the GMR in the hot nuclei.更多还原