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arXiv 1002.4888hep-lathep-phhep-th
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Yang-Mills理论中约束弦的宽度

The Width of the Confining String in Yang-Mills Theory

F. Gliozzi, M. Pepe, U. -J. Wiese

摘要:

用Monte Carlo方法研究了(2+1)-dSU(2)Yang-Mills理论中连接两个静态夸克的约束弦的横向涨落。通过一种非常有效的多电平算法从大噪声中提取出指数抑制信号。弦的宽度随静态夸克电荷之间的距离而增加。在中间距离由于普遍高阶项的有效字符串行动的修正进行了计算分析。它们精确地拟合了数值数据。

英文摘要:

We investigate the transverse fluctuations of the confining string connecting two static quarks in (2+1)-d SU(2) Yang-Mills theory using Monte Carlo calculations. The exponentially suppressed signal is extracted from the large noise by a very efficient multi-level algorithm. The resulting width of the string increases logarithmically with the distance between the static quark charges. Corrections at intermediate distances due to universal higher order terms in the effective string action are calculated analytically. They accurately fit the numerical data.

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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