arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 2007.12234hep-th
收藏

$d=6$维中$ϕ^3$理论的重整化群行为

Renormalization-Group Behavior of $ϕ^3$ Theories in $d=6$ Dimensions

John A. Gracey, Thomas A. Ryttov, Robert Shrock

摘要:

我们研究了六维时空中$ϕ^3$理论中非零耦合下可能的重整化群不动点,使用计算到四圈水平的β函数。我们分析了三种理论的这种类型,与(a)一个组件标量,(b)标量变换的基本表示的全球${\rm SU}(N)$对称群,和(c)标量变换作为一个双伴随表示的全球${\rm SU}(N) \otimes {\rm SU}(N)$对称。在理论(a)或(b)中,我们没有找到这种不动点的有力证据。理论(c)的特殊之处在于β函数中的单圈项为零;讨论了这一点的含义。

英文摘要:

We investigate possible renormalization-group fixed points at nonzero coupling in $ϕ^3$ theories in six spacetime dimensions, using beta functions calculated to the four-loop level. We analyze three theories of this type, with (a) a one-component scalar, (b) a scalar transforming as the fundamental representation of a global ${\rm SU}(N)$ symmetry group, and (c) a scalar transforming as a bi-adjoint representation of a global ${\rm SU}(N) \otimes {\rm SU}(N)$ symmetry. We do not find robust evidence for such fixed points in theories (a) or (b). Theory (c) has the special feature that the one-loop term in the beta function is zero; implications of this are discussed.

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。

↑