Autor:	Haefeli, Christoph, Ivanov, Mikhail A., Schmid, Martin
Rok vydání:	2007
Předmět:	High Energy Physics - Phenomenology
Zdroj:	Eur.Phys.J.C53:549-557,2008
Druh dokumentu:	Working Paper
DOI:	10.1140/epjc/s10052-007-0493-2
Popis:	We investigate three-flavour chiral perturbation theory including virtual photons in a limit where the strange quark mass is much larger than the external momenta and the up and down quark masses, and where the external fields are those of two-flavour chiral perturbation theory. In particular we work out the strange quark mass dependence of the electromagnetic two-flavour low-energy constants C and k_i. We expect that these relations will be useful for a more precise determination of the electromagnetic low-energy constants. Comment: 18 pages, 4 Tables, 2 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/0710.5432 Zobrazit plný text záznamu View this record from Arxiv