Electromagnetic corrections in partially quenched chiral perturbation theory

被引：18

作者：

Bijnens, Johan

Danielsson, Niclas

机构：

[1] Lund Univ, Dept Theoret Phys, SE-22362 Lund, Sweden

[2] Lund Univ, Lund Inst Technol, Div Mat Phys, SE-22100 Lund, Sweden

来源：

PHYSICAL REVIEW D | 2007年 / 75卷 / 01期

关键词：

D O I：

10.1103/PhysRevD.75.014505

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

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.

引用

页数：11

共 42 条

[1] QCD isospin breaking in meson masses, decay constants and quark mass ratios
Amoros, G
Bijnens, J
Talavera, P
[J]. NUCLEAR PHYSICS B, 2001, 602 (1-2) : 87 - 108
[2] Ananthanarayan B, 2004, J HIGH ENERGY PHYS
[3] HADRONIC MATRIX-ELEMENTS AND THE PI-+-PI-0 MASS DIFFERENCE
BARDEEN, WA
BIJNENS, J
GERARD, JM
[J]. PHYSICAL REVIEW LETTERS, 1989, 62 (12) : 1343 - 1346
[4] PARTIALLY QUENCHED GAUGE-THEORIES AND AN APPLICATION TO STAGGERED FERMIONS
BERNARD, CW
GOLTERMAN, MFL
[J]. PHYSICAL REVIEW D, 1994, 49 (01): : 486 - 494
[5] CHIRAL PERTURBATION-THEORY FOR THE QUENCHED APPROXIMATION OF QCD
BERNARD, CW
GOLTERMAN, MFL
[J]. PHYSICAL REVIEW D, 1992, 46 (02): : 853 - 857
[6] Decay constants of pseudoscalar mesons to two loops in three-flavor partially quenched chiral perturbation theory -: art. no. 094502
Bijnens, J
Lähde, TA
[J]. PHYSICAL REVIEW D, 2005, 71 (09): : 1 - 15
[7] Masses and decay constants of pseudoscalar mesons to two loops in two-flavor partially quenched chiral perturbation theory -: art. no. 074502
Bijnens, J
Lähde, TA
[J]. PHYSICAL REVIEW D, 2005, 72 (07):
[8] Three-flavor partially quenched chiral perturbation theory at NNLO for meson masses and decay constants
Bijnens, J
Danielsson, N
Lähde, TA
[J]. PHYSICAL REVIEW D, 2006, 73 (07):
[9] Pseudoscalar meson mass to two loops in three-flavor partially quenched chiral perturbation theory -: art. no. 111503
Bijnens, J
Danielsson, N
Lähde, TA
[J]. PHYSICAL REVIEW D, 2004, 70 (11) : 111503 - 1
[10] Renormalization of chiral perturbation theory to order p6
Bijnens, J
Colangelo, G
Ecker, G
[J]. ANNALS OF PHYSICS, 2000, 280 (01) : 100 - 139

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