Results 51 to 60 of about 62,213 (219)
Chiral Lagrangians and the QCD string [PDF]
Physics Letters B, 1999 We propose a method to derive the low-energy efective action of QCD assuming that the long-distance properties of strong interactions can be described by a string theory. We bypass the usual problems related to the existence of the tachyon and absence of the adequate Adler zero by using a sigma model approach where excitations above the correct ...
Alfaro Solís, Jorge Luis +2 more
openaire +5 more sources
A neutrinoless double beta decay master formula from effective field theory
Journal of High Energy Physics, 2018 We present a master formula describing the neutrinoless-double-beta decay (0νββ) rate induced by lepton-number-violating (LNV) operators up to dimension nine in the Standard Model Effective Field Theory.
V. Cirigliano +4 more
doaj +1 more source
The role of isospin filtering reactions in the S = −1 sector [PDF]
EPJ Web of Conferences, 2019 The present study reveals interesting constraining effects of isospin filtering reactions on the low energy constants present in meson-baryon chiral effective Lagrangian, particularly, on the next-to-leading order constants.
Feijoo A., Magas V.K., Ramos A.
doaj +1 more source
Towards a lattice calculation of the coefficients of the QCD chiral Lagrangian [PDF]
, 1996 We discuss a general strategy to compute the coefficients of QCD chiral Lagrangian by using the lattice regularization of QCD with Wilson fermions. This procedure requires the introduction of an effective Lagrangian for lattice QCD as an intermediate ...
A.R. Levi +13 more
core +3 more sources
Kaon-nucleon scattering from chiral Lagrangians [PDF]
Physics Letters B, 1994 14 pages and 2 figures(LaTeX), SNUTP-93-81. (References are added in the reference [21])
Lee, C.-H. +3 more
openaire +3 more sources
Chiral metric meson Lagrangians
Nuclear Physics B, 1970 Abstract The currents associated with the chiral-invariant pseudoscalar meson Lagrangian, constructed from a certain metric tensor on a G-manifold, are investigated. The relation between these currents, the Sugawara model and the linearized version of chiral theories in which a set of free fields is constrained, is demonstrated.
K.J. Barnes, C.J. Isham
openaire +1 more source
Phenomenology of heavy meson chiral lagrangians [PDF]
Physics Reports, 1997 The approximate symmetries of Quantum ChromoDynamics in the infinite heavy quark ($Q=c,b$) mass limit ($m_Q \to \infty$) and in the chiral limit for the light quarks ($m_q \to 0,\;q=\,u,\,d,\,s$) can be used together to build up an effective chiral lagrangian for heavy and light mesons describing strong interactions among effective meson fields as well
Casalbuoni, R. +5 more
openaire +2 more sources
Annalen der Physik, Volume 538, Issue 1, January 2026.The BRST invariant Lagrangian of the gravitationally interacting U(1)$U(1)$ gauge theory, namely the Quantum GraviElectro Dynamics (QGED). The Yan–Mills theory with the Hilbert–Einstein gravitational Lagrangian, namely the Yang–Mills–Utiyama (YMU) theory, is defined and quantised using the standard procedure. The theory is perturbatively renormalisable,
Yoshimasa Kurihara
wiley +1 more source
Precision calculation of the axion-nucleon coupling in chiral perturbation theory
Journal of High Energy Physics, 2020 We derive the axion-nucleon interaction Lagrangian in heavy baryon chiral perturbation theory up to next-to-next-to-leading order. The effective axion-nucleon coupling is calculated to a few percent accuracy.
Thomas Vonk +2 more
doaj +1 more source
Generalized version of chiral Schwinger model in terms of chiral bosonization
European Physical Journal C: Particles and Fields, 2021 The $$(1+1)$$ ( 1 + 1 ) dimensional generalized model where vector and axial vector interaction get mixed up with different strength is considered. Imposing a chiral constraint, the model can be expressed in terms of chiral boson.
Safia Yasmin
doaj +1 more source