We investigate higher-order corrections to the effective potential of the tricritical O(N)-symmetric model in 3-2ε dimensions in its phase exhibiting spontaneous breaking of its scale symmetry. The renormalization group β-function and the anomalous dimension γ of this model are computed up to the next-to-next-to-leading order in the1/N expansion technique and using a dimensional regularization in a minimal subtraction scheme.

中文翻译：

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三临界 O(N)-对称 Φ ⁶模型的重整化函数超出 1/N 中的次前导阶

我们研究了三临界O ( N ) 对称模型在其相中3-2 ε维的有效电位的高阶校正，显示其尺度对称性的自发破坏。该模型的重整化群β函数和异常维数γ在 1/N 扩展技术中计算到 next-to-next-to-leading 顺序，并在最小减法方案中使用维数正则化。