出版社:SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要:We present the determination of the light quark masses using electromagnetic splittings of pions
and kaons. The meson masses are calculated on SU(3)£U(1) gauge configurations, where SU(3)
gauge fields include sea quark effects of two degenerate flavors and the U(1) gauge fields are
incorporated in non-compact form. Possible sources of systematic uncertainty are discussed.