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Acta Physica Sinica (Overseas Edition), 1995, Vol. 4(2): 88-98    DOI: 10.1088/1004-423X/4/2/002
THE PHYSICS OF ELEMENTARY PARTICLES AND FIELDS Prev   Next  

CHIRAL ANOMALY AND UNAMBIGUOUS TERMS OF EXACT SCALE BEHAVIOR

YANG JI-FENG (杨继锋), NI GUANG-JIONG (倪光炯)
Department of Physics, Fudan University, Shanghai 200433, China
Abstract  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.
Received:  03 January 1994      Accepted manuscript online: 
PACS:  12.20.Ds (Specific calculations)  
  11.10.-z (Field theory)  
  11.30.Rd (Chiral symmetries)  
Fund: Project supported by the National Natural Science Foundation of China and by the Foundation of State Education Commission of China.

Cite this article: 

YANG JI-FENG (杨继锋), NI GUANG-JIONG (倪光炯) CHIRAL ANOMALY AND UNAMBIGUOUS TERMS OF EXACT SCALE BEHAVIOR 1995 Acta Physica Sinica (Overseas Edition) 4 88

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