A global NNLO chiral-perturbation-theory fit with explicit Delta to lattice-QCD axial form factors gives g_A = 1.257 ± 0.011 and r_A² = 0.312 ± 0.037 fm².
Systematic 1/M Expansion for Spin 3/2 Particles
3 Pith papers cite this work. Polarity classification is still indexing.
3
Pith papers citing it
abstract
Starting from a relativistic formulation of the pion-nucleon-delta system, the most general structure of 1/M corrections for a heavy baryon chiral lagrangian including spin 3/2 resonances is given. The heavy components of relativistic nucleons and delta fields are integrated out and their contributions to the next-to-leaing order lagrangians are constructed explicitly. The effective theory obtained admits a systematic expansion in terms of soft momenta, the pion mass $m_\pi$ and the delta-nucleon mass difference $\Delta$. As an application, we consider neutral pion photoproduction at threshold to third order in this small scale expansion.
citation-role summary
method 1
citation-polarity summary
fields
hep-ph 3years
2026 3roles
method 1polarities
use method 1representative citing papers
Heavy baryon chiral perturbation theory at O(p^4) finds small higher-order corrections to electric polarizabilities of singly charmed baryons, larger corrections to magnetic polarizabilities linked to transition moments, spin polarizabilities smaller than nucleons except for γ_M1M1, and generally st
Chiral EFT derivation of the Δ⁻ → p e⁻ e⁻ amplitude including long-range neutrino loops, short-range counterterms, pion-mass dependence for collinear electrons, and a long-range prediction in the degenerate Δ-nucleon mass limit.
citing papers explorer
-
Extraction of the nucleon axial form factor from Lattice QCD using NNLO chiral perturbation theory
A global NNLO chiral-perturbation-theory fit with explicit Delta to lattice-QCD axial form factors gives g_A = 1.257 ± 0.011 and r_A² = 0.312 ± 0.037 fm².
-
Classical and spin polarizabilities of singly heavy baryons within heavy baryon chiral perturbation theory
Heavy baryon chiral perturbation theory at O(p^4) finds small higher-order corrections to electric polarizabilities of singly charmed baryons, larger corrections to magnetic polarizabilities linked to transition moments, spin polarizabilities smaller than nucleons except for γ_M1M1, and generally st
-
Neutrinoless double-beta decay of the $\Delta^-$ resonance
Chiral EFT derivation of the Δ⁻ → p e⁻ e⁻ amplitude including long-range neutrino loops, short-range counterterms, pion-mass dependence for collinear electrons, and a long-range prediction in the degenerate Δ-nucleon mass limit.