STAGGERED FERMIONS AT BETA-=5.7 - SMEARED OPERATORS ON LARGE LATTICES

被引：28

作者：

BACILIERI, P

REMIDDI, E

TODESCO, GM

CABASINO, S

CABIBBO, N

MARINARI, E

PAOLUCCI, P

PARISI, G

PECH, J

SALINA, G

LOMBARDO, MP

TRIPICCIONE, R

MARZANO, F

RAPUANO, F

SARNO, R

TROSS, W

机构：

[1] UNIV BOLOGNA,DEPARTIMENTO FIS,I-40126 BOLOGNA,ITALY

[2] UNIV ROMA TOR VERGATA,DIPARTIMENTO FIS,I-00173 ROME,ITALY

[3] IST NAZL FIS NUCL,ROMA TOR VERGATA,ITALY

[4] IST NAZL FIS NUCL,I-56100 PISA,ITALY

[5] NATL INST NUCL PHYS,ROME,ITALY

[6] UNIV ROME LA SAPIENZA,DEPARTIMENTO FIS,I-00185 ROME,ITALY

来源：

NUCLEAR PHYSICS B | 1990年 / 343卷 / 01期

关键词：

D O I：

10.1016/0550-3213(90)90602-A

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 study staggered quenched QCD at a moderate value of β on large lattices. We introduce smeared Green functions for staggered fermions, and we analyze their effectiveness. We estimate the lattice spacing, and establish that staggered fermions undergo large systematic errors at low β in the estimate of the lattice spacing from the ρ{variant}-mass. The scale ratio of the baryonic and the mesonic sector (mp/mp) is, on the contrary, consistent with the one estimated by using Wilson fermions. Owing to the use of smeared operators on large lattices (up to 243 × 32), we are able to give reliable results for the baryonic states. © 1990.

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页码：228 / 240

页数：13

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