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Neutron-proton mass difference in the chiral solitonic bag model
Phys. Rev. D 36, 3443 – Published 1 December, 1987
DOI: https://doi.org/10.1103/PhysRevD.36.3443
Abstract
The neutron-proton mass difference is calculated in the electromagnetically gauged chiral solitonic bag model, with explicit isospin breaking. There are two types of contributions. First is the electromagnetic self-energy which does not get any contribution from inside the bag. The purely Skyrmionic outside and quark-Skyrmion interference contributions are both negative but very small. The main contribution comes from the explicit isospin-breaking part. This is computed by using a multireflection expansion for the bag Green’s functions. The result is 1.30 MeV for a bag size of 0.67 F.
Comments & Replies
On the quantization of the chiral solitonic bag model
Phys. Rev. D 41, 315 (1990)
Comments on "Neutron-proton mass difference in the chiral solitonic bag model"
Phys. Rev. D 41, 310 (1990)
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