Casimir squared correction to the standard rotator Hamiltonian for the O(n) sigma-model in the delta-regime
Abstract In a previous paper we found that the isospin susceptibility of the O(n) sigma-model calculated in the standard rotator approximation differs from the next-to-next-to leading order chiral perturbation theory result in terms vanishing like 1/ℓ, for ℓ = L t /L → ∞ and further showed that this...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Springer
2018-05-01
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| Series: | Journal of High Energy Physics |
| Subjects: | |
| Online Access: | http://link.springer.com/article/10.1007/JHEP05(2018)070 |