QUENCHED LIGHT HADRON MASS-SPECTRUM AND DECAY CONSTANTS - THE EFFECTS OF O(A) IMPROVEMENT AT BETA=6.2

被引：45
作者：
ALLTON, CR
SACHRAJDA, CT
BAXTER, RM
BOOTH, SP
BOWLER, KC
COLLINS, S
HENTY, DS
KENWAY, RD
MCNEILE, C
PENDLETON, BJ
RICHARDS, DG
SIMONE, JN
SIMPSON, AD
MCKERRELL, A
MICHAEL, C
PRISZNYAK, M
机构：
[1] UNIV SOUTHAMPTON, DEPT PHYS, SOUTHAMPTON SO9 5NH, HANTS, ENGLAND
[2] UNIV EDINBURGH, DEPT PHYS, EDINBURGH EH9 3JZ, MIDLOTHIAN, SCOTLAND
[3] UNIV LIVERPOOL, DAMTP, LIVERPOOL L69 3BX, ENGLAND
来源：
NUCLEAR PHYSICS B | 1993年 / 407卷 / 02期
关键词：
D O I：
10.1016/0550-3213(93)90061-S
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：
We compare the light hadron spectrum and decay constants for quenched QCD at beta = 6.2 using an O(a)-improved nearest-neighbour Wilson fermion action with those obtained using the standard Wilson fermion action on the same set of 18 gauge configurations. For pseudoscalar meson masses in the range 330-800 MeV, we find no significant difference between the results for the two actions. The scales obtained from the string tension and mesonic sector are consistent, but differ from that derived from baryon masses. The ratio of the pseudoscalar decay constant to the vector meson mass increases slowly with quark mass as observed experimentally.
引用
收藏
页码：331 / 355
页数：25
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