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Prog. Theor. Phys. Vol. 25 No. 2 (1961) pp. 189-200
On the Electromagnetic Mass Differences among the Sigma Hyperons
Yoshiko Sugimoto
Department of Physics, Hiroshima University, Hiroshima
(Received July 21, 1960)
Abstract:
The problem of the mass difference of the triplet sigma is discussed in terms of an electromagnetic self-energy by taking account of the virtual process Σ0→Λ0+γ→Σ0 and the process Σ0→Σ0+γ→Σ0 for the self-mass of the neutral sigma on an equal footing. The electromagnetic form factor is introduced to serve as a cutoff factor. With the e2-approximation, it can be seen that the process Σ0→Λ0+γ→Σ0 plays an important role to study the mass splitting of Σ's along this line.
URL :
http://ptp.ipap.jp/link?PTP/25/189/
DOI : 10.1143/PTP.25.189
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Citing Article(s) :
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Progress of Theoretical Physics Vol. 25 No. 4 (1961) pp. 646-652
:
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KKππ-Interaction and Nucleon Core
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Shigeo Minami
