Results 121 to 130 of about 651 (212)

On the origin of the enhancement of CP-violating charge asymmetries in $K^\pm \to3\pi$ decays predicted from chiral theory [PDF]

open access: yes, 1993
We present an analysis of the enhancement of CP-violating charge asymmetries in $K^±→3π$ decays. Calculations of decay amplitudes are performed on the basis of bosonized strong and weak lagrangians derived from QCD-motivated quark lagrangians.
Bel'kov, A. A.   +4 more
core   +1 more source

Vector two-point functions in finite volume using partially quenched chiral perturbation theory at two loops

open access: yesJournal of High Energy Physics, 2017
We calculate vector-vector correlation functions at two loops using partially quenched chiral perturbation theory including finite volume effects and twisted boundary conditions.
Johan Bijnens, Johan Relefors
doaj   +1 more source

Chiral corrections to the 1(-+) exotic meson mass [PDF]

open access: yes, 2017
We first construct the effective chiral Lagrangians for the 1(-+) exotic mesons. With the infrared regularization scheme, we derive the one-loop infrared singular chiral corrections to the pi(1) (1600) mass explicitly. We investigate the variation of the
Zhou, Bin   +7 more
core   +1 more source

Hadronic light-by-light contribution to aμ: extended Nambu-Jona-Lasinio, chiral quark models and chiral Lagrangians

open access: yesEPJ Web of Conferences, 2016
This talk discusses our old work on the hadronic light-by-light contribution to the muon anomalous magnetic moment and some more recent contributions. I discuss the various contributions starting with pseudoscalar meson exchange, the quark- and pion-loop,
Bijnens Johan
doaj   +1 more source

QCD scales and chiral symmetry in finite nuclei [PDF]

open access: yes, 1997
The authors report on this progress in the calculation of nuclear ground-state properties using effective Lagrangians whose construction is constrained by QCD scales and chiral symmetry. Good evidence is found that QCD and chiral symmetry apply to finite
Madland, D.G.
core  

Unitarized chiral perturbation theory of hadrons [PDF]

open access: yes, 2003
An exposition is made of recent developments using techniques of unitary chiral perturbation theory, UχPT, which allows one to extend predictions using chiral Lagrangians to higher energies than ordinary chiral perturbation theory, including the region ...
Oset Báguena, Eulogio, E. Oset
core   +1 more source

BHLS 2 upgrade: τ spectra, muon HVP and the [ π 0 , η , η ' ] system. [PDF]

open access: yesEur Phys J C Part Fields, 2022
Benayoun M, DelBuono L, Jegerlehner F.
europepmc   +1 more source

Four-point correlator constraints on electromagnetic chiral parameters and resonance effective lagrangians [PDF]

open access: yes, 2004
We pursue the analysis of a set of generalized DGMLY sum rules for the electro-magnetic chiral parameters at order $e^{\mathrm{2}}p^{\mathrm{2}}$ and discuss implications for effective lagrangians with resonances.
Ananthanarayan, Balasubramanian   +1 more
core  

Chiral anomalies, effective lagrangians and differential geometry [PDF]

open access: yes, 1984
Using the differential geometric approach developed by Zumino and others, we study the relation between chiral anomalies and the effective lagrangian. We present a simple formula for the non-abelian (Bardeen) anomaly in any even dimensions.
Tye, S. H.H., Kawai, H.
core   +1 more source

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