Glueball Masses from an Infrared Moment Problem

被引：69
作者：
Dudal, D. [1 ]
Guimaraes, M. S. [2 ]
Sorella, S. P. [2 ]
机构：
[1] Univ Ghent, Dept Phys & Astron, B-9000 Ghent, Belgium
[2] Univ Estado Rio De Janeiro, Inst Fis, Dept Fis Teor, BR-20550013 Rio De Janeiro, Brazil
来源：
PHYSICAL REVIEW LETTERS | 2011年 / 106卷 / 06期
关键词：
AXIOMS;
D O I：
10.1103/PhysRevLett.106.062003
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We set up an infrared-based moment problem to obtain estimates of the masses of the scalar, pseudoscalar, and tensor glueballs in Euclidean Yang-Mills theories using the refined Gribov-Zwanziger (RGZ) version of the Landau gauge, which takes into account nonperturbative physics related to gauge copies. Employing lattice input for the mass scales of the RGZ gluon propagator, the lowest order moment problem approximation gives the values m(0++) approximate to 1.96 GeV, m(2++) approximate to 2.04 GeV, and m(0-+) approximate to 2.19 GeV in the SU(3) case, all within a 20% range of the corresponding lattice values. We also recover the mass hierarchy m(0++) < m(2++) < m(0-+).
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页数：4
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