Thied—Order Approximation of 0^＋＋ Glueball Mass and Wavefunction of （2＋1）—Dimensional SU（3） Lattice Gauge Theory  

作　　者：LIJie－Ming CHENQi－Zhou 等 

机构地区：[1]DepartmentofPhysics,ZhoungshanUniversity,Guangzhou510275,China

出　　处：《Communications in Theoretical Physics》2001年第1期28-31,共4页理论物理通讯（英文版）

摘　　要：The random phase approximation is applied to the coupled-cluster expansions of lattice gauge theory (LGT). Using this method, wavefunctions are approximated by linear combination of graphs consisting of only one connected Wilson loop. We study the excited state energy and wavefunction in (2+1)-D SU(3) LGT up to the third order. The glueball mass shows a good scaling behavior.

关 键 词：random phase approximation coupled-cluster expansion Wilson loop glueball mass 

分 类 号：O413.4[理学—理论物理]