ϕ3 theory with F4 flavor symmetry in 6 − 2ϵ dimensions: 3-loop renormalization and conformal bootstrap

ϕ3 theory with F4 flavor symmetry in 6 − 2ϵ dimensions: 3-loop renormalization and conformal bootstrap
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6 − 2ϵ 维度中具有 F4 风味对称性的 phi3 理论:3 环重整化和保形自举

DOI:
10.1007/jhep12(2016)057
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发表时间:
2016
影响因子:
5.4
通讯作者:
Ning Su
Ning Su
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
Y. Pang;J. Rong;Ning Su

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我们考虑具有 F4 全局对称性的 6 − 2ϵ 中的 phi3 理论。 beta 函数计算最多 3 个循环,并观察到稳定的酉 IR 固定点。还计算 ψ 中二次或三次算子的反常维数。然后,我们采用共形自举技术来研究微扰方法预测的不动点。对于 phi (Δphi) 的每个假定缩放维度,我们获得 26 表示中的第二低标量原色 (Δ262nd) 的缩放维度的相应上限,该表示出现在 phi × phi 的 OPE 中。在 D = 5.95 中,我们观察到位于 Δψ 处的上限曲线上有一个尖峰,等于 3 环计算预测的值。在 D = 5 时,我们观察到上限曲线在 (Δψ, Δ262nd) = (1.6, 4) 处存在弱扭结。
We consider ϕ3 theory in 6 − 2ϵ with F4 global symmetry. The beta function is calculated up to 3 loops, and a stable unitary IR fixed point is observed. The anomalous dimensions of operators quadratic or cubic in ϕ are also computed. We then employ conformal bootstrap technique to study the fixed point predicted from the perturbative approach. For each putative scaling dimension of ϕ (Δϕ), we obtain the corresponding upper bound on the scaling dimension of the second lowest scalar primary in the 26 representation (Δ262nd) which appears in the OPE of ϕ × ϕ. In D = 5.95, we observe a sharp peak on the upper bound curve located at Δϕ equal to the value predicted by the 3-loop computation. In D = 5, we observe a weak kink on the upper bound curve at (Δϕ, Δ262nd) = (1.6, 4).