Results 31 to 40 of about 2,429 (218)
Calculation of Chiral Lagrangian Coefficients [PDF]
Chinese Physics Letters, 2003 7 pages, To appear in Chin.Phys.Lett, Year ...
openaire +2 more sources
High-Precision Nuclear Forces From Chiral EFT: State-of-the-Art, Challenges, and Outlook
Frontiers in Physics, 2020 We review a new generation of nuclear forces derived in chiral effective field theory using the recently proposed semilocal regularization method. We outline the conceptual foundations of nuclear chiral effective field theory, discuss all steps needed to
Evgeny Epelbaum +2 more
doaj +1 more source
Isospin-breaking effects in the three-pion contribution to hadronic vacuum polarization
Journal of High Energy Physics, 2023 Isospin-breaking (IB) effects are required for an evaluation of hadronic vacuum polarization at subpercent precision. While the dominant contributions arise from the e + e − → π + π − channel, also IB in the subleading channels can become relevant for a ...
Martin Hoferichter +3 more
doaj +1 more source
Isospin-breaking effects in the two-pion contribution to hadronic vacuum polarization
Journal of High Energy Physics, 2022 Isospin-breaking (IB) effects in the two-pion contribution to hadronic vacuum polarization (HVP) can be resonantly enhanced, if related to the interference of the ρ(770) and ω(782) resonances.
Gilberto Colangelo +3 more
doaj +1 more source
Non-Abelian sine-Gordon solitons
Nuclear Physics B, 2015 We point out that non-Abelian sine-Gordon solitons stably exist in the U(N) chiral Lagrangian. They also exist in a U(N) gauge theory with two N by N complex scalar fields coupled to each other.
Muneto Nitta
doaj +1 more source
Axial-vector transition form factors and e + e − → f 1 π + π −
Journal of High Energy Physics, 2023 We study the transition form factors (TFFs) of axial-vector mesons in the context of currently available experimental data, including new constraints from e + e − → f 1(1285)π + π − that imply stringent limits on the high-energy behavior and, for the ...
Martin Hoferichter +2 more
doaj +1 more source
Radiative corrections to the forward-backward asymmetry in e + e − → π + π −
Journal of High Energy Physics, 2022 We present a calculation of the C-odd radiative corrections to e + e − → π + π − in a dispersive formalism, concentrating on the leading pion-pole contribution in the virtual box diagrams.
Gilberto Colangelo +3 more
doaj +1 more source
Reinterpretation of Effective Chiral Lagrangian [PDF]
, 2000 10 pages, 1 figureEffective tree Chiral Lagrangian is interpreted as a power series expansion of the kinematical variables. In the presence of the strong interaction this expansion is valid below the unitarity cut, hence in the unphysical region ...
Truong, Tran N.
core +2 more sources
The lagrangian formulation of chiral scalars
Physics Letters B, 1987 Abstract The lagrangian proposed by Siegel describing left- or right-moving scalars in two dimensions is analysed. The existence of anomalies is pointed out and a modification of the lagrangian leading to the elimination of anomalies is proposed. The generalization for chiral scalars defined on an arbitrary Riemann surface is discussed.
IMBIMBO, CAMILLO, A. SCHWIMMER
openaire +2 more sources
Chiral primary one-point functions in the D3-D7 defect conformal field theory [PDF]
, 2013 JHEP is an open-access journal funded by SCOAP3 and licensed under CC BY 4.0archiveprefix: arXiv primaryclass: hep-th reportnumber: NORDITA-2012-81 slaccitation: %%CITATION = ARXIV:1210.7015;%%archiveprefix: arXiv primaryclass: hep-th reportnumber ...
Semenoff, Gordon W. +8 more
core +1 more source