Pedro Bicudo, Marina Krstic Marinkovic, Lasse Müller, Marc Wagner
{"title":"Antistatic-antistatic $\\bar Q \\bar Q qq$ potentials for $u$, $d$ and $s$ light quarks from lattice QCD","authors":"Pedro Bicudo, Marina Krstic Marinkovic, Lasse Müller, Marc Wagner","doi":"arxiv-2409.10786","DOIUrl":null,"url":null,"abstract":"We report on our ongoing lattice QCD computation of antistatic-antistatic\npotentials in the presence of two light quarks using the CLS $N_f=2$ gauge\nconfigurations and the OpenQ*D codebase. We utilize a set of 16 creation\noperators, corresponding to 8 sectors characterized by angular momentum and\nparity quantum numbers for light quarks $qq = (ud - du) / \\sqrt{2}$ (isospin\n$0$), $qq \\in \\{ uu , (ud + du) / \\sqrt{2}, dd \\}$ (isospin $1$) and $qq \\in \\{\nus , ds \\}$ (isospin $1/2$ and strangeness $-1$). We improve on previous work\nby considering a large number of off-axis separations of the static antiquarks\nand by using tree-level improvement. The resulting potentials provide vague\nindication for one-pion exchange at $\\bar Q \\bar Q$ separations $r \\gtrapprox$\n0.5 fm.","PeriodicalId":501067,"journal":{"name":"arXiv - PHYS - High Energy Physics - Phenomenology","volume":"195 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2024-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"arXiv - PHYS - High Energy Physics - Phenomenology","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/arxiv-2409.10786","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
We report on our ongoing lattice QCD computation of antistatic-antistatic
potentials in the presence of two light quarks using the CLS $N_f=2$ gauge
configurations and the OpenQ*D codebase. We utilize a set of 16 creation
operators, corresponding to 8 sectors characterized by angular momentum and
parity quantum numbers for light quarks $qq = (ud - du) / \sqrt{2}$ (isospin
$0$), $qq \in \{ uu , (ud + du) / \sqrt{2}, dd \}$ (isospin $1$) and $qq \in \{
us , ds \}$ (isospin $1/2$ and strangeness $-1$). We improve on previous work
by considering a large number of off-axis separations of the static antiquarks
and by using tree-level improvement. The resulting potentials provide vague
indication for one-pion exchange at $\bar Q \bar Q$ separations $r \gtrapprox$
0.5 fm.
京公网安备 11010802042870号
京ICP备2023020795号-1
分享
求助内容：
应助结果提醒方式：
扫码关注我们
