QCD WITH DYNAMIC WILSON FERMIONS .2.

被引：72

作者：

GUPTA, R

BAILLIE, CF

BRICKNER, RG

KILCUP, GW

PATEL, A

SHARPE, SR

机构：

[1] UNIV COLORADO,DEPT PHYS,BOULDER,CO 80309

[2] UNIV CALIF LOS ALAMOS SCI LAB,DIV C,LOS ALAMOS,NM 87545

[3] OHIO STATE UNIV,DEPT PHYS,COLUMBUS,OH 43210

[4] INDIAN INST SCI,SUPERCOMP EDUC & RES CTR,BANGALORE 560012,KARNATAKA,INDIA

[5] INDIAN INST SCI,CTR THEORET STUDIES,BANGALORE 560012,KARNATAKA,INDIA

[6] UNIV WASHINGTON,DEPT PHYS,SEATTLE,WA 98195

来源：

PHYSICAL REVIEW D | 1991年 / 44卷 / 10期

关键词：

D O I：

10.1103/PhysRevD.44.3272

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present results for the QCD spectrum and the matrix elements of scalar and axial-vector densities at beta = 6/g2 = 5.4, 5.5, 5.6. The lattice update was done using the hybrid Monte Carlo algorithm to include two flavors of dynamical Wilson fermions. We have explored quark masses in the range m(s) less-than-or-equal-to m(q) less-than-or-equal-to 3 m(s). The results for the spectrum are similar to quenched simulations and mass ratios are consistent with pbenomenological heavy-quark models. The results for matrix elements of the scalar density show that the contribution of sea quarks is comparable to that of the valence quarks. This has important implications for the pion-nucleon-sigma term.

引用

页码：3272 / 3292

页数：21

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