Results 11 to 20 of about 307,900 (212)
On the minimality of the order p6 chiral Lagrangian
Physics Letters B, 2015 A method to find relations between the operators in the mesonic Lagrangian of Chiral Perturbation Theory at order p6 is presented. The procedure can be used to establish if the basis of operators in the Lagrangian is minimal.
Pedro Ruiz-Femenía +1 more
doaj +4 more sources
Chiral Anomalies and the Chiral Lagrangian [PDF]
, 1985 The subject of this thesis is some implications of chiral anomalies for chiral Lagrangians. The thesis consists of three parts: In the first part, a somewhat heuristic discussion of the topological meaning of anomalies is given in the framework ...
Sonoda, Hidenori
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Consistent Treatment of Axions in the Weak Chiral Lagrangian [PDF]
Physical Review Letters, 2021 We present a consistent implementation of weak decays involving an axion or axionlike particle in the context of an effective chiral Lagrangian. We argue that previous treatments of such processes have used an incorrect representation of the flavor ...
Bauer, Martin; https://orcid.org/ +4 more
core +9 more sources
a → πππ decay at next-to-leading order in chiral perturbation theory [PDF]
Journal of High Energy Physics, 2022 We discuss the construction of the two-flavour axion-pion effective Lagrangian at the next-to-leading order (NLO) in chiral perturbation theory and present, as a phenomenological application, the calculation of the decay rate of a GeV-scale axion-like ...
Luca Di Luzio, Gioacchino Piazza
doaj +2 more sources
Parity-violating πNN coupling constant from the flavor-conserving effective weak chiral Lagrangian
Physics Letters B, 2017 We investigate the parity-violating pion–nucleon–nucleon coupling constant hπNN1, based on the chiral quark-soliton model. We employ an effective weak Hamiltonian that takes into account the next-to-leading order corrections from QCD to the weak ...
Chang Ho Hyun +2 more
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The anomalous chiral Lagrangian of order p(6) [PDF]
The European Physical Journal C, 2002 dWe construct the effective chiral Lagrangian for chiral perturbation theory in the mesonic odd-intrinsic-parity sector at order p(6). The Lagrangian contains 24 in principle measurable terms and no contact terms for the general case of N-f light flavors,
P. Talavera +6 more
core +3 more sources
Study of the interactions of the axion with mesons and photons using a chiral effective Lagrangian model [PDF]
European Physical Journal C: Particles and Fields, 2020 We investigate the most interesting decay processes involving axions, photons and the lightest pseudoscalar mesons, making use of a chiral effective Lagrangian model with $$L=3$$ L=3 light quark flavors, which also includes the flavor-singlet ...
Giacomo Landini, Enrico Meggiolaro
doaj +2 more sources
Species Doubling and Chiral Lagrangians [PDF]
Physical Review Letters, 1996 Coupling gauge fields to the chiral currents from an effective Lagrangian for pseudoscalar mesons naturally gives rise to a species doubling phenomenon similar to that seen with fermionic fields in lattice gauge theory.
Tytgat, Michel, Creutz, Michael
openaire +4 more sources
The Lagrangian method for chiral symmetry [PDF]
, 1969 We describe the non linear realizations of chiral symmetry group and study some of its implications in elementary particle phycics. In Chapter 1, the basic concepts of non linear realization techniques are introduced the way of reviewing the special case
Yoshida, Kensuke
core +5 more sources
A chiral effective lagrangian for nuclei [PDF]
Nuclear Physics A, 1997 43 pages, REVTeX 3.0 with epsf.sty, plus 12 ...
Furnstahl, R. J. +2 more
openaire +2 more sources