CHIRAL ESTIMATE OF THE ELECTRIC DIPOLE MOMENT OF THE NEUTRON IN QUANTUM CHROMODYNAMICS
In: CHIRAL ESTIMATE OF THE ELECTRIC DIPOLE MOMENT OF THE NEUTRON IN QUANTUM CHROMODYNAMICS (Elsevier eBooks)
Chapter In A Book 1989 English
Authors
RC
R. J. Crewther
PV
P. Di Vecchia
GV
G. Veneziano
Abstract
1 min read
Received 7 September 1979Current algebra for CP violating strong interactions is investigated. In particular, the neutron electric dipole moment D
n is shown to behave as ϑm
2
π ln m
2
π for small pion mass m
π and CP violating parameter ϑ. This logarithm is explicitly calculable: it contributes 5.2 × 10−16ϑ cm to D
n. This result is somewhat larger than a previous O(m
2
π) estimate based on the bag model.
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