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Finite-volume effects in the δ-regime
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DOI：10.1007/JHEP02(2025)092.png)
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摘要
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We derive a systematic perturbative expansion for the finite-volume energy spectrum of the non-linear O(N) sigma-model in the delta-regime. The violation of the power-counting rules that emerges after the separation of the fast and slow modes is dealt with to all orders by use of the threshold expansion. The known result for the rest-frame energy spectrum up-to-and-including next-to-next-to-leading order is reproduced.
Keyword:
Chiral Lagrangian
Effective Field Theories
Lattice Quantum Field Theory
期刊
IF:
5.5
论文数:
4.0W
被引数:
13.7W
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