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arXiv 1012.2953hep-lat
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具有指数级改进的统计精度的球质量

Glueball masses with exponentially improved statistical precision

Michele Della Morte, Leonardo Giusti

摘要:

我们简要回顾了我们最近推出的计算胶球质量和矩阵元素,它实现了指数级减少统计误差相比,标准技术的计算策略。该理论的全局对称性在该方法中起着至关重要的作用。我们展示了如何我们以前的工作奇偶性可以推广到其他对称性。特别是我们讨论了如何提取0++,2++和0-+最轻的胶球的质量,避免了信噪比的指数退化。我们提出了新的数值结果,并更新公布的。

英文摘要:

We briefly review the computational strategy we have recently introduced for computing glueball masses and matrix elements, which achieves an exponential reduction of statistical errors compared to standard techniques. The global symmetries of the theory play a crucial role in the approach. We show how our previous work on parity can be generalized to other symmetries. In particular we discuss how to extract the mass of the 0++, 2++ and 0-+ lightest glueballs avoiding the exponential degradation of the signal to noise ratio. We present new numerical results and update the published ones.

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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