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An analytic analysis of the pion decay constant in three-flavoured chiral perturbation theory
A representation of the two-loop contribution to the pion decay constant in SU(3) chiral perturbation theory is presented. The result is analytic up to the contribution of the three (different) mass sunset integrals, for which an expansion in their external momentum has been taken. We also give an a...
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| Опубликовано в: : | Eur Phys J C Part Fields |
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| Главные авторы: | , , |
| Формат: | Artigo |
| Язык: | Inglês |
| Опубликовано: |
Springer Berlin Heidelberg
2017
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| Предметы: | |
| Online-ссылка: | https://ncbi.nlm.nih.gov/pmc/articles/PMC5586975/ https://ncbi.nlm.nih.gov/pubmed/28943799 https://ncbi.nlm.nih.govhttp://dx.doi.org/10.1140/epjc/s10052-017-5019-y |
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