Three-Quark Potential and Abelian Dominance of Confinement in SU(3) QCD
Three-Quark Potential and Abelian Dominance of Confinement in SU(3) QCD
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SU(3) QCD 中约束的三夸克势和阿贝尔显性
DOI：
10.1103/physrevd.92.034511
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发表时间：
2015
影响因子：
5
通讯作者：
N. Sakumichi and H. Suganuma
中科院分区：
文献类型：
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作者：
Antonios Tsokaros;Koji Uryu;Stuart Shapiro;Yukinori Sakuragi;N. Sakumichi and H. Suganuma
本文研究了SU(3)猝灭晶格QCD中重子三夸克（3Q）势及其双超导体图中的阿贝尔投影。将非阿贝尔的SU(3)规范理论在极大阿贝尔规范上投影到阿贝尔语言理论上。我们研究了300多种不同模式的静态3Q系统的3Q势及其阿贝尔部分。对于所有的距离，我们发现3Q势和阿贝尔部分都可以很好地用Y元描述，即两体库仑项加上三体Y型线性项，其中是连接三个夸克的最小通量管长度。我们发现三体弦张力和它的阿贝尔部分之间是等价的，误差在几个百分点以内，即，这意味着夸克-约束力在3Q系统中具有阿贝尔优势。
We study the baryonic three-quark (3Q) potential and its Abelian projection in terms of the dual-superconductor picture in SU(3) quenched lattice QCD. The non-Abelian SU(3) gauge theory is projected onto Abeliangauge theory in the maximal Abelian gauge. We investigate the 3Q potential and its Abelian part for more than 300 different patterns of static 3Q systems in total atonand atonwith 1000–2000 gauge configurations. For all the distances, both the 3Q potential and Abelian part are found to be well described by the Y ansatz, i.e., two-body Coulomb term plus three-body Y-type linear term, whereis the minimum flux-tube length connecting the three quarks. We find equivalence between the three-body string tensionand its Abelian partwith an accuracy within a few percent deviation, i.e.,, which means Abelian dominance of the quark-confining force in 3Q systems.