Hyperon decay form factors in chiral perturbation theory

Abstract

We present a complete calculation of the SU(3)-breaking corrections to the hyperon vector form factors up to O(p^4) in covariant baryon chiral perturbation theory. Partial higher-order contributions are obtained, and we discuss chiral extrapolations of the vector form factor at zero momentum transfer. In addition we derive low-energy theorems for the subleading moments in hyperon decays, the weak Dirac radii and the weak anomalous magnetic moments, up to O(p^4).

21 pages, 3 figures; discussion extended, references added, version published in JHEP

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Cited by in corpus (25)

• Helicity Analysis of Semileptonic Hyperon Decays Including Lepton Mass Effects
• Semileptonic decays of the light J(P)=1/2(+) ground state baryon octet
• Recent developments in SU(3) covariant baryon chiral perturbation theory
• Lattice study of flavor SU(3) breaking in hyperon beta decay
• Hyperons in Two Flavor Chiral Perturbation Theory
• Hyperon Semileptonic decay constants with flavor SU(3) symmetry breaking
• Tests of non-standard electroweak couplings of right-handed quarks
• SU(3)-breaking corrections to the hyperon vector coupling $f_1(0)$ in covariant baryon chiral perturbation theory
• Weak vector and axial-vector form factors in the chiral constituent quark model with configuration mixing
• Electromagnetic form factors of spin 1/2 doubly charmed baryons
• Semileptonic hyperon decays in the self-consistent SU(3) chiral quark-soliton model
• Testing SU(3) Flavor Symmetry in Semileptonic and Two-body Nonleptonic Decays of Hyperons
• Hyperon vector form factor from 2+1 flavor lattice QCD
• Renormalization of the baryon axial vector current in large-N_c chiral perturbation theory: Effects of the decuplet-octet mass difference and flavor symmetry breaking
• SU(3) breaking in hyperon transition vector form factors
• The baryon vector current in the combined chiral and 1/Nc expansions
• Continuum limit of hyperon vector coupling $f_1(0)$ from 2+1 flavor domain wall QCD
• First moments of nucleon generalized parton distributions in chiral perturbation theory at full one-loop order
• Dirac form factors and electric charge radii of baryons in the combined chiral and 1/N_c expansions
• Chiral extrapolation and finite-volume dependence of the hyperon vector couplings
• Chiral corrections to the vector and axial couplings of quarks and baryons
• Hyperon production in quasielastic ${\bar{\nu }}_{\tau }-$nucleon scattering
• Properties of hyperons in chiral perturbation theory
• Sum rules for leading vector form factors in hyperon semileptonic decays
• Study of vector and axial-vector form factors and the decay parameters for the semileptonic hyperon decays