Axial gravity and anomalies of fermions

被引：17
作者：
Bastianelli, Fiorenzo [1 ,2 ]
Broccoli, Matteo [3 ]
机构：
[1] Univ Bologna, Dipartimento Fis & Astron, Via Irnerio 46, I-40126 Bologna, Italy
[2] Ist Nazl Fis Nucl, Sez Bologna, Via Irnerio 46, I-40126 Bologna, Italy
[3] Max Planck Inst Gravitat Phys, Albert Einstein Inst, Muhlenberg 1, D-14476 Golm, Germany
来源：
EUROPEAN PHYSICAL JOURNAL C | 2020年 / 80卷 / 03期
关键词：
PATH-INTEGRAL MEASURE; CONFORMAL ANOMALIES;
D O I：
10.1140/epjc/s10052-020-7782-4
中图分类号：
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号：
摘要：
We consider a Dirac fermion in a metric-axial-tensor (MAT) background. By regulating it with Pauli-Villars fields we analyze and compute its full anomaly structure. Appropriate limits of the MAT background allows to recover the anomalies of Dirac and Weyl fermions in the usual curved spacetime, obtaining in particular the trace anomaly of a chiral fermion, which has been the object of recent analyses.
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页数：8
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