2+1维SU(3)0^(++)胶球质量  

0^(++) Glueball Mass in 2+1-D SU(3) LGT

作　　者：惠萍[1] 陈启洲[2] 

机构地区：[1]广东教育学院物理系,广州510303 [2]中山大学物理系,广州510275

出　　处：《高能物理与核物理》2000年第9期805-809,共5页High Energy Physics and Nuclear Physics

基　　金：教育部博士点基金资助&&

摘　　要：提出变形集团展开法研究 2 + 1维SU(3 )格点规范场的胶球质量 .这种方法采用相连空心图的线性组合作为试探波函数 ,并引入了Wilson圈图的平均值 .计算结果表明 ,变形集团展开法的真空能量比普通集团展开法方法的真空能量低 ,0 ++胶球质量m/e2 的二阶和三阶结果在耦合常数 β =4 5— 8 0区间 ,表现出较好的标度行为和良好的收敛性 .The coupled cluster method is improved to calculate 0 ++ glueball mass m/e 2 in 2+1 -D SU (3) lattice gauge theory. In this method, we take the linear combination of connected hollow graphs as trial wavefunction and introduce the average for small wilson loop. The second order and the third order 0 ++ glueball masses ( m/e 2 ) as the function of the coupling constant β=6/g 2 show good scaling behavior and good convergent behavior. The vacuum energy W 0 obtained by this method is lower than that by common method.

关 键 词：格点规范理论 胶球质量 波函数 QCD 

分 类 号：O413[理学—理论物理]