Tea Time学术活动

报告题目：有限核系统的形状共存问题以及强磁场条件下核物质配对性质研究（访学报告）

报 告 人：穆成富

时    间：12月12日(星期三)  14:00-15:00

地    点：理学之光报告厅

报告人简介：

        穆成富，2009年在清华大学物理系获得博士学位，2009-201年在北京大学物理学院从事博士后研究。目前研究方向主要在核物理的低能核结构和高能核物质的物态性质等方面。对于有限核体系主要应用IBM模型研究中重核区的形状共存和形状相变已经混合对称态等形状。对于高能核物质主要讨论高温高密夸克物质的相结构及相变性质研究，最近主要集中于强磁场条件下核物质的物态形状研究。

报告内容简介：

        We investigate the level structure and E2, M1 electromagnetic transition properties in an even–even 96Mo nucleus within the framework of the proton–neutron interacting boson model (IBM-2). The calculated results of the IBM-2 can reproduce the recent new experimental data on 96Mo both qualitatively and quantitatively. It is found that both shape coexistence and mixed-symmetry states in 96Mo can be simultaneously described very well with the IBM-2 by taking into account that the relative energy of d neutron bosons is different from that of proton bosons. We consider the LOFF pairing consisting of three-dimensional nonrelativistic fermions of mass m and chemical potential μ with opposite charge interacting through a short ranged instantaneous attractive interaction in a constant magnetic field. The thermodynamic potential of the system has been calculated. We will discuss the magnetic effect on the LOFF pairing.