THE INTERQUARK POTENTIAL - A QCD LATTICE ANALYSIS

被引：48

作者：

BORN, KD

LAERMANN, E

SOMMER, R

WALSH, TF

ZERWAS, PM

机构：

[1] UNIV BIELEFELD,FAK PHYS,D-33501 BIELEFELD,GERMANY

[2] DESY,D-22603 HAMBURG,GERMANY

[3] UNIV MINNESOTA,DEPT PHYS,MINNEAPOLIS,MN 55455

来源：

PHYSICS LETTERS B | 1994年 / 329卷 / 2-3期

关键词：

D O I：

10.1016/0370-2693(94)90780-3

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We report on a QCD analysis of the potential between heavy quarks. Our calculation includes light quark loops and is carried out on a 16(3) x 24 lattice for couplings beta = 5.35 and 5.15 and a quark mass am(q) = 0.010. We generated lattice configurations using a hybrid Monte Carlo algorithm for N(F) = 4 flavors of staggered fermions. We can explore distances between 0.12 fm and 0.9 fm for these parameters. The shape of the resulting potential is well described by the superposition of a term proportional to 1/R and a linear confinement potential. This full QCD potential is compared to results obtained from quenched approximation simulations on lattices of the same size and with the same value of the cutoff. We discuss a rough estimate of the QCD coupling.

引用

页码：325 / 331

页数：7

共 29 条

[1] GLUEBALL MASSES AND STRING TENSION IN LATTICE QCD [J].

ALBANESE, M ;

COSTANTINI, F ;

FIORENTINI, G ;

FLORE, F ;

LOMBARDO, MP ;

TRIPICCIONE, R ;

BACILIERI, P ;

FONTI, L ;

GIACOMELLI, P ;

REMIDDI, E ;

BERNASCHI, M ;

CABIBBO, N ;

MARINARI, E ;

PARISI, G ;

SALINA, G ;

CABASINO, S ;

MARZANO, F ;

PAOLUCCI, P ;

PETRARCA, S ;

RAPUANO, F ;

MARCHESINI, P ;

RUSACK, R .

PHYSICS LETTERS B, 1987, 192 (1-2) :163-169

[2]

ALEXANDROU C, IN PRESS NUCL PHYS B

[3]

ALEXANDROU C, PSIPR9227 PREPR

[4] THE HADRON SPECTRUM IN QCD WITH DYNAMIC STAGGERED FERMIONS [J].

ALTMEYER, R ;

BORN, KD ;

GOCKELER, M ;

HORSLEY, R ;

LAERMANN, E ;

SCHIERHOLZ, G .

NUCLEAR PHYSICS B, 1993, 389 (02) :445-510

[5]

ALTMEYER R, 1991, NUCL PHYS B S, V20, P380

[6]

ALTMEYER R, 1991, NUCL PHYS B S, V20, P394

[7] RUNNING COUPLING AND THE LAMBDA PARAMETER FROM SU(3) LATTICE SIMULATIONS [J].

BALI, GS ;

SCHILLING, K .

PHYSICAL REVIEW D, 1993, 47 (02) :661-672

[8] ANOTHER CONNECTION BETWEEN THE LAMBDA-PARAMETERS OF THE EUCLIDEAN LATTICE AND CONTINUUM QCD [J].

BILLOIRE, A .

PHYSICS LETTERS B, 1981, 104 (06) :472-474

[9]

Bitar K. M., 1991, Nuclear Physics B, Proceedings Supplements, V20, P362, DOI 10.1016/0920-5632(91)90942-8

[10] THE RUNNING COUPLING FROM SU(3) LATTICE GAUGE-THEORY [J].

BOOTH, SP ;

HENTY, DS ;

HULSEBOS, A ;

IRVING, AC ;

MICHAEL, C ;

STEPHENSON, PW .

PHYSICS LETTERS B, 1992, 294 (3-4) :385-390

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