198 citations · 440 across the 9 of their papers we have counts for
9 papers
Sunset integrals with up to three mass scales in chiral perturbation theory: a comparative study of the Mellin-Barnes representation technique
Balasubramanian Ananthanarayan, Sumit Banik, Véronique Bernard +3
Sunset integrals are among the simplest of two-loop integrals that appear in perturbative quantum field theories and possess up to four distinct mass scales. By means of integratio…
Calculation of the axial-vector coupling constant to two loops in covariant chiral perturbation theory
Véronique Bernard, Jambul Gegelia, Shayan Ghosh +1
We present a calculation of the leading two-loop corrections to the axial-vector coupling constant in two covariant versions of two-flavor baryon chiral perturbation theory.…
The reaction pi N -> pi pi N in chiral effective field theory with explicit Delta(1232) degrees of freedom
D. Siemens, V. Bernard, E. Epelbaum +2
The reaction pi N -> pi pi N is studied at tree level up to next-to-leading order in the framework of manifestly covariant baryon chiral perturbation theory with explicit Delta(123…
Subleading contributions to the chiral three-nucleon force II: Short-range terms and relativistic corrections
V. Bernard, E. Epelbaum, H. Krebs +1
We derive the short-range contributions and the leading relativistic corrections to the three-nucleon force at next-to-next-to-next-to-leading order in the chiral expansion.
Chiral perturbation theory
Véronique Bernard, Ulf-G. Meißner
We give a brief introduction to chiral perturbation theory in its various settings. We discuss some applications of recent interest including chiral extrapolations for lattice gaug…
Radiative neutron beta-decay in effective field theory
V. Bernard, S. Gardner, U. -G. Meißner +1
We consider radiative β--decay of the neutron in heavy baryon chiral perturbation theory, with an extension including explicit Δdegrees of freedom. We compute the photon energy spe…
Quark-antiquark resonances in the NJL model
V. Bernard, A. H. Blin, B. Hiller +3
The problem of the meson resonance solution in the extended NJL model is studied. It has been shown previously that the solution for the meson changes smoothly from a bound…
Pion Observables in the Extended NJL Model with Vector and Axial-Vector Mesons
V. Bernard, A. H. Blin, B. Hiller +3
The momentum-space bosonization method of a Nambu and Jona-Lasinio type model with vector and axial-vector mesons is applied to scattering. Unlike the case in earlier publishe…
Threshold Pion Photo- and Electroproduction in Chiral Perturbation Theory
V. Bernard
I present some recent results on neutral pion photo- and electroproduction in the threshold region and discuss the low energy theorem for and some novel ones for the -w…