Electromagnetic corrections in partially quenched chiral perturbation theory

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Abstract

We introduce photons in partially quenched chiral perturbation theory and calculate the resulting electromagnetic loop-corrections at next-to-leading-order (NLO) for the charged meson masses and decay constants. We also present a numerical analysis to indicate the size of the different corrections. We show that several phenomenologically relevant quantities can be calculated consistently with photons which couple only to the valence quarks, allowing the use of gluon configurations produced without dynamical photons.

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Ämnesklassifikation (UKÄ) – OBLIGATORISK

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Originalspråkengelska
TidskriftPhysical Review D (Particles, Fields, Gravitation and Cosmology)
Volym75
Utgivningsnummer1
StatusPublished - 2007
PublikationskategoriForskning
Peer review utfördJa