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arXiv 0905.4195hep-lat
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三维SU中QCD通量管的能谱(2)格点规范理论

Spectrum of the QCD flux tube in 3d SU(2) lattice gauge theory

Bastian B. Brandt, Pushan Majumdar

摘要:

来自晶格的证据表明,在QCD真空中$q\bar{q}$对之间形成的通量管导致夸克禁闭。对于大的夸克之间的分离,它被证实,通量管具有类似于振荡玻色弦的行为,支持基态$q\bar{q}$势的晶格数据。在标度区内,我们测量了三种不同耦合的三维SU(2)规范理论中通量管的激发态。我们将我们的结果与有效的弦论的预测进行了比较。

英文摘要:

Evidence from the lattice suggests that formation of a flux tube between a $q\bar{q}$ pair in the QCD vacuum leads to quark confinement. For large separations between the quarks, it is conjectured that the flux tube has a behaviour similar to an oscillating bosonic string, supported by lattice data for the groundstate $q\bar{q}$ potential. We measure the excited states of the flux tube in 3d SU(2) gauge theory with three different couplings inside the scaling region. We compare our results to predictions of effective string theories.

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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