Masses and decay constants of pseudoscalar mesons to two loops in two-flavor partially quenched chiral perturbation theory

Journal Article · Sat Oct 01 00:00:00 EDT 2005 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PhysRevD.72.074502· OSTI ID:20713654

Bijnens, Johan; Laehde, Timo A ^[1]

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1. Department of Theoretical Physics, Lund University, Soelvegatan 14A, S 223 62 Lund (Sweden)

This paper presents a first study of the masses and decay constants of the charged, or flavor-off-diagonal, pseudoscalar mesons to two loops for two flavors of sea-quarks, in Partially Quenched Chiral Perturbation Theory (PQ{chi}PT). Explicit analytical expressions up to O(p{sup 6}) in the momentum expansion are given. The calculations have been performed within the supersymmetric formulation of PQ{chi}PT. A numerical analysis is done to indicate the size of the corrections.

• OSTI ID: 20713654
• Journal Information: Physical Review. D, Particles Fields, Vol. 72, Issue 7; Other Information: DOI: 10.1103/PhysRevD.72.074502; (c) 2005 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
CHIRAL SYMMETRY
CHIRALITY
CORRECTIONS
FLAVOR MODEL
LATTICE FIELD THEORY
NUMERICAL ANALYSIS
PARTICLE DECAY
PERTURBATION THEORY
PSEUDOSCALAR MESONS
QUANTUM CHROMODYNAMICS
QUARKS
REST MASS
SUPERSYMMETRY