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arXiv 1206.2341hep-lat
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超对称Yang-Mills理论中的胶子-胶子粒子和有限尺寸效应

The gluino-glue particle and finite size effects in supersymmetric Yang-Mills theory

Georg Bergner, Tobias Berheide, Istvan Montvay, Gernot Münster, Umut D. Özugurel, Dirk Sandbrink

摘要:

在超对称杨-米尔斯理论中,粒子的谱预计包含一个自旋为1/2的胶子和胶子的束缚态,即胶子-胶粒子。我们通过数值模拟研究了晶格上软破缺超对称杨-米尔斯理论中这种粒子的质量。主要关注的是有限尺寸效应的估计。我们首先将质量外推到无限大的体积,然后外推到一个消失的胶子质量的极限。结果表明,有限尺寸的影响是可以容忍的适度大小的晶格,和剩余的偏离超对称性可能是由于有限的晶格间距的影响。

英文摘要:

The spectrum of particles in supersymmetric Yang-Mills theory is expected to contain a spin 1/2 bound state of gluons and gluinos, the gluino-glue particle. We study the mass of this particle in softly broken supersymmetric Yang-Mills theory on a lattice by means of numerical simulations. The main focus is the estimation of finite size effects. We extrapolate the mass first to the infinite volume and then to the limit of a vanishing gluino mass. The results indicate that finite size effects are tolerable on lattices of moderate size, and that remaining deviations from supersymmetry are probably due to finite lattice spacing effects.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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