Results 111 to 120 of about 651 (212)
On the minimality of the order p 6 chiral Lagrangian
Physics Letters B, 2015 A method to find relations between the operators in the mesonic Lagrangian of Chiral Perturbation Theory at order p^6 is presented. The procedure can be used to establish if the basis of operators in the Lagrangian is minimal. As an example, we apply the method to the two-flavour case in the absence of scalar and pseudo-scalar sources (s=p=0), and ...
Ruiz-Femenía, Pedro +1 more
openaire +3 more sources
From chiral Lagrangians to Landau Fermi liquid theory of nuclear matter [PDF]
, 1996 A simple relation between the effective parameters of chiral Lagrangians in medium as predicted by BR scaling and Landau Fermi liquid parameters is derived.
Friman, B. (Gesellschaft fuer Schwerionenforschung mbH, Darmstadt (Germany) +3 more
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Flavored extended instanton in QCD
Journal of High Energy Physics, 2020 We discuss new flavored space-like defects in confined QCD which can be considered as the Euclidean extended instantons carrying the topologically quantized currents.
A. Gorsky, A. Grekov
doaj +1 more source
Meson–meson and meson–baryon interactions in a chiral non-perturbative approach [PDF]
, 1998 A qualitative account of the meson-meson and meson-baryon interactions using chiral Lagrangians and the inverse amplitude method in coupled channels is done.
Oset Báguena, Eulogio +3 more
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The role of chiral Lagrangians in strongly interacting W$_{L}$W$_{L}$ signals at pp supercolliders [PDF]
, 1991 In this paper we apply a simple phenomenological model to describe the scattering amplitudes of strongly interacting longitudinal gauge bosons at the future pp colliders, LHC and SSC. The model is based on the use of the well-known techniques from chiral
Herrero, M. J. +5 more
core +1 more source
Reconciling threshold and subthreshold expansions for pion–nucleon scattering
Physics Letters B, 2017 Heavy-baryon chiral perturbation theory (ChPT) at one loop fails in relating the pion–nucleon amplitude in the physical region and for subthreshold kinematics due to loop effects enhanced by large low-energy constants.
D. Siemens +6 more
doaj +1 more source
A new theory framework for the electroweak radiative corrections in K l3 decays
Journal of High Energy Physics, 2020 We propose a new theory framework to study the electroweak radiative corrections in K l3 decays by combining the classic current algebra approach with the modern effective field theory. Under this framework, the most important O $$ \mathcal{O} $$ (G F α)
Chien-Yeah Seng +2 more
doaj +1 more source
Remarks on the pion–nucleon σ-term
Physics Letters B, 2016 The pion–nucleon σ-term can be stringently constrained by the combination of analyticity, unitarity, and crossing symmetry with phenomenological information on the pion–nucleon scattering lengths. Recently, lattice calculations at the physical point have
Martin Hoferichter +3 more
doaj +1 more source
A proof of concept for matchete: an automated tool for matching effective theories. [PDF]
Eur Phys J C Part Fields, 2023 Fuentes-Martín J +4 more
europepmc +1 more source
The Mesonic Chiral Lagrangian of Order [PDF]
, 2007 : We construct the effective chiral Lagrangian for chiral perturbation theory in the mesonic even-intrinsic-parity sector at order p 6 . The Lagrangian contains 112 in principle measurable + 3 contact terms for the general case of n light flavours, 90 ...
Johan Bijnens Dept +3 more
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