六边形余数函数在极限情况下的自交叉可达三个循环
Hexagon remainder function in the limit of self-crossing up to three loops
摘要:
本文研究了平面N=4 SYM中两条边相交极限下的空多边形的威尔逊圈。该分析是基于一个重正化组技术。我们表明,以前得到的结果的领导和下一个领导的发散项的两个回路六边形剩余是在完全符合适当的延续的精确解析公式这个数量。此外,我们还确定了零n阶(n ≥ 6)的三圈余函数的首奇异性和次首奇异性的系数。
英文摘要:
We consider Wilson loops in planar N=4 SYM for null polygons in the limit of two crossing edges. The analysis is based on a renormalisation group technique. We show that the previously obtained result for the leading and next-leading divergent term of the two loop hexagon remainder is in full agreement with the appropriate continuation of the exact analytic formula for this quantity. Furthermore, we determine the coefficients of the leading and next-leading singularity for the three loop remainder function for null n-gons with n >= 6.
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