Electromagnetic corrections in partially quenched chiral perturbation theory

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Electromagnetic corrections in partially quenched chiral perturbation theory. / Bijnens, Johan; Danielsson, Niclas.

In: Physical Review D (Particles, Fields, Gravitation and Cosmology), Vol. 75, No. 1, 2007.

Research output: Contribution to journalArticle

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TY - JOUR

T1 - Electromagnetic corrections in partially quenched chiral perturbation theory

AU - Bijnens, Johan

AU - Danielsson, Niclas

N1 - The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Theoretical High Energy Physics (000006112), Mathematical Physics (Faculty of Technology) (011040002)

PY - 2007

Y1 - 2007

N2 - 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.

AB - 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.

U2 - 10.1103/PhysRevD.75.014505

DO - 10.1103/PhysRevD.75.014505

M3 - Article

VL - 75

JO - Physical Review D - Particles, Fields, Gravitation and Cosmology

T2 - Physical Review D - Particles, Fields, Gravitation and Cosmology

JF - Physical Review D - Particles, Fields, Gravitation and Cosmology

SN - 1550-2368

IS - 1

ER -