论文标题
脱氧基德隆
De-projecting the EFThedron
论文作者
论文摘要
最近,可以将EFT的Wilson EFT系数完成为一致的理论,被证明是通过阳性几何形状分析描述的,该几何形状称为eftheDron。但是,这种几何形状以及半明确编程的互补数值方法迄今已重点介绍了部分波扩展的阳性,这仅允许仅界限耦合比率。在本文中,我们描述了如何合并部分波的单位上限。这个新问题可以根据众所周知的$ l $ - 大小问题提出,我们从几何学角度概括和解决。我们发现,efthedron的非标志性概括具有无限数量的非线性方面,在某些情况下,它们具有非常简单的描述。我们使用这些结果来得出单个耦合的边界,发现当截止量表和环系数标准化时,领先的导数操作员是由统一界限的。对于质量尺寸$ 2K $的普通运营商,我们发现上限在大$ K $下被严重抑制,$ 1/k $损坏。
The space of Wilson coefficients of EFT that can be UV completed into consistent theories was recently shown to be described analytically by a positive geometry, termed the EFThedron. However, this geometry, as well as complementary numerical methods of semi-definite programming, have so far focused on the positivity of the partial wave expansion, which allows bounding only ratios of couplings. In this paper we describe how the unitarity upper bound of the partial waves can be incorporated. This new problem can be formulated in terms of the well known $L$-moment problem, which we generalize and solve from a geometrical perspective. We find the non-projective generalization of the EFThedron has an infinite number of non-linear facets, which in some cases have remarkably simple descriptions. We use these results to derive bounds on single couplings, finding that the leading derivative operators are bounded by unity, when normalized by the cut-off scale and loop factors. For general operators of mass dimension $2k$ we find the upper bound is heavily suppressed at large $k$, with an $1/k$ fall-off.