Comparing improved actions for SU(2)

被引：2

作者：

Pennanen, P

Peisa, J

机构：

[1] Univ Helsinki, Helsinki Inst Phys, FIN-00014 Helsinki, Finland

[2] Univ Liverpool, Dept Math Sci, Liverpool L69 3BX, Merseyside, England

来源：

NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS | 1998年 / 63卷

关键词：

D O I：

10.1016/S0920-5632(97)00941-9

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

In order to help the user in choosing the right action a performance comparison is done for seven improved actions. Six of them are Symanzik improved, one at tree-level and two at one-loop, all with or without tadpole improvement. The seventh is an approximate fixed point action. Observables are static on-and off-ads two-body potentials and four-body binding energies, whose precision is compared when the same amount of computer time is used by the programs.

引用

收藏

页码：919 / 921

页数：3

相关论文

共 9 条

[1] LATTICE QCD ON SMALL COMPUTERS [J].

ALFORD, M ;

DIMM, W ;

LEPAGE, GP ;

HOCKNEY, G ;

MACKENZIE, PB .

PHYSICS LETTERS B, 1995, 361 (1-4) :87-94

[2] SU (2) POTENTIALS FROM LARGE LATTICES [J].

BOOTH, SP ;

HULSEBOS, A ;

IRVING, AC ;

MCKERRELL, A ;

MICHAEL, C ;

SPENCER, PS ;

STEPHENSON, PW .

NUCLEAR PHYSICS B, 1993, 394 (02) :509-526

[3] Scaling and topological charge of a fixed-point action for SU(2) gauge theory [J].

DeGrand, T ;

Hasenfratz, A ;

Zhu, DC .

NUCLEAR PHYSICS B, 1996, 478 (1-2) :349-364

[4] Study of degenerate four-quark states with SU(2) lattice Monte Carlo techniques [J].

Green, AM ;

Lukkarinen, J ;

Pennanen, P ;

Michael, C .

PHYSICAL REVIEW D, 1996, 53 (01) :261-272

[5] COMPUTATION OF THE ACTION FOR ON-SHELL IMPROVED LATTICE GAUGE-THEORIES AT WEAK COUPLING [J].

LUSCHER, M ;

WEISZ, P .

PHYSICS LETTERS B, 1985, 158 (03) :250-254

[6] ON-SHELL IMPROVED LATTICE GAUGE-THEORIES [J].

LUSCHER, M ;

WEISZ, P .

COMMUNICATIONS IN MATHEMATICAL PHYSICS, 1985, 97 (1-2) :59-77

[7] Continuum extrapolation of energies of a four-quark system in lattice gauge theory [J].

Pennanen, P .

PHYSICAL REVIEW D, 1997, 55 (07) :3958-3965

[8] Square Symanzik action to one-loop order [J].

Snippe, J .

PHYSICS LETTERS B, 1996, 389 (01) :119-120

[9] CONTINUUM-LIMIT IMPROVED LATTICE ACTION FOR PURE YANG-MILLS THEORY .2. [J].

WEISZ, P ;

WOHLERT, R .

NUCLEAR PHYSICS B, 1984, 236 (02) :397-422