摘要: We perform new explicit and regularization-independent calculations of < AV > amplitude in QED1+1 and amplitude in QED1+3 respectively to reinvestigate the anomaly problem. A kind of finite and unambiguous terms of exact scale behavior (in momentum space) is found to be responsible for the anomalies both in QED1+1 and QED1+1. They come from logarithmically divergent momentum integrals in contrast with the usual knowledge for triaugle anomaly in QED1+3. In QED1+1, this term is also responsible for photon mass generation. Some implications and possible relations with other aspects of anomaly are discussed.
中图分类号:
(Specific calculations)
11.10.-z (Field theory)
11.30.Rd (Chiral symmetries)
杨继锋, 倪光炯. CHIRAL ANOMALY AND UNAMBIGUOUS TERMS OF EXACT SCALE BEHAVIOR[J]. 中国物理B, 1995, 4(2): 88-98.
YANG JI-FENG (杨继锋), NI GUANG-JIONG (倪光炯). CHIRAL ANOMALY AND UNAMBIGUOUS TERMS OF EXACT SCALE BEHAVIOR[J]. Acta Physica Sinica (Overseas Edition), 1995, 4(2): 88-98.