Abstract
We calculate the spin-dependent polarizability of the nucleon in the Skyrme model. The result is compared with that of a heavy baryon chiral perturbation theory(HBChPT), and is shown to be the same as that of HBChPT up to the Δ-pole terms in the narrow width limit of the Δ state and with the experimental physical constants. The effect of the Δ + π channel is rather small and is numerically quite similar to that of the Δ loop in the HBChPT. The electric and magnetic polarizabilities are recalculated using the transverse photon and a consistent inclusion of the Δ width.
| Original language | English |
|---|---|
| Pages (from-to) | 6-12 |
| Number of pages | 7 |
| Journal | Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics |
| Volume | 425 |
| Issue number | 1-2 |
| DOIs | |
| Publication status | Published - 1998 Apr 16 |
Keywords
- Electromagnetic polarizabilities
- Heavy baryon chiral perturbation theory
- Skyrme model
- Spin-dependent polarizability
ASJC Scopus subject areas
- Nuclear and High Energy Physics
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Tanushi, Y., Nakahara, Y., Saito, S., & Uehara, M. (1998). Spin-dependent polarizability of nucleon with dispersion relation in the Skyrme model. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 425(1-2), 6-12. https://doi.org/10.1016/S0370-2693(98)00184-1