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arXiv 1301.7577hep-thmath-phmath.MP
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无上同调规范理论的重整化

Renormalization of gauge theories without cohomology

Damiano Anselmi

摘要:

我们研究了规范理论的重整化问题,而不假设上同调性质。我们定义了一个重整化算法,保留Batalin-Vilkovisky主方程在每一步,并自动扩展经典的行动,直到它包含足够多的独立参数重新吸收所有的分歧到参数重新定义和规范的转换。然后将其推广到规范理论的主泛函和场协变的真形式。我们的结果在所有明显无反常的规范理论中成立,无论幂次计数是否可重正化。扩展算法允许我们解决二次问题,例如找到主方程的充分一般解,即使它不可能将其减少到线性(上同调)问题。

英文摘要:

We investigate the renormalization of gauge theories without assuming cohomological properties. We define a renormalization algorithm that preserves the Batalin-Vilkovisky master equation at each step and automatically extends the classical action till it contains sufficiently many independent parameters to reabsorb all divergences into parameter-redefinitions and canonical transformations. The construction is then generalized to the master functional and the field-covariant proper formalism for gauge theories. Our results hold in all manifestly anomaly-free gauge theories, power-counting renormalizable or not. The extension algorithm allows us to solve a quadratic problem, such as finding a sufficiently general solution of the master equation, even when it is not possible to reduce it to a linear (cohomological) problem.

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