Low-Energy Theorem for Pion Photoproduction from the Hypothesis of Partially Conserved Axial-Vector Current

1967 ◽  
Vol 161 (5) ◽  
pp. 1599-1601 ◽  
Author(s):  
G. W. Gaffney
Keyword(s):  
Axial Vector ◽  
Vector Current ◽  
Pion Photoproduction ◽  
Low Energy ◽  
Axial Vector Current

PION PHOTOPRODUCTION AT THRESHOLD AND LOW ENERGY THEOREMS REVISITED

1991 ◽  
Vol 06 (02) ◽  
pp. 263-288 ◽  
Author(s):  
A.N. KAMAL
Keyword(s):  
Axial Vector ◽  
Vector Current ◽  
Pion Photoproduction ◽  
Low Energy ◽  
Axial Vector Current ◽  
Recent Measurement ◽  
Recent Theory ◽  
Second Look

This paper takes a second look at the methods used in deriving low energy theorems on pion photoproduction using the partially conserved axial vector current (PCAC) hypothesis. The discrepancy between a recent measurement of Eo+(γp→π0p) and theory is studied. Rescattering corrections to low energy theorems are made. A critique of some recent theory papers on this subject is presented.

On the conserved axial-vector current in β-decay

1964 ◽  
Vol 31 (4) ◽  
pp. 874-878 ◽  
Author(s):  
V. S. Mathur ◽  
Ravinder Nath ◽  
R. P. Saxena
Keyword(s):  
Axial Vector ◽  
Vector Current ◽  
Axial Vector Current ◽  
Β Decay
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