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arXiv 2202.02168hep-thgr-qc
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自旋3/2场与自旋1/2场相互作用的引力手征anomaly

Gravitational chiral anomaly for spin 3/2 field interacting with spin 1/2 field

G. Yu. Prokhorov, O. V. Teryaev, V. I. Zakharov

摘要:

在扩展的Rarita-Schwinger-Adler(RSA)场论框架下计算了引力手征量子反常,其中包括与附加自旋1/2场的相互作用。结果表明,引力手征反常的因子,归一化到狄拉克场反常,等于-19。由此得到的值将RSA理论与其他自旋为3/2的理论区分开来。在单圈三点图的水平上直接验证了RSA理论在强相互作用极限下的保形性。

英文摘要:

The gravitational chiral quantum anomaly is calculated in the framework of the extended Rarita-Schwinger-Adler (RSA) field theory, which includes the interaction with an additional spin 1/2 field. It is shown that the factor in the gravitational chiral anomaly, normalized to the Dirac field anomaly, is equal to -19. The resulting value distinguishes the RSA theory from the other theories of spin 3/2. A direct verification of the conformality of the RSA theory in the strong interaction limit at the level of one-loop three-point graphs was made.

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