Results 91 to 100 of about 57,829 (262)
Annalen der Physik, Volume 536, Issue 1, January 2024.A primer on axion physics, emphasizing an intuitive understanding of why the axion solves the strong CP problem. Abstract The canonical axion potential is reviewed, with an emphasis on the field theory underlying radial and angular modes of complex scalar fields.
Felix Yu
wiley +1 more source
Pseudoscalar Meson Dominance and Nucleon Structure
Few-Body Systems, 2023 Presented by E.R.A. at the International Conference on the Structure of Baryons Baryons 2022).Nov 7--11, 2022 Seville (Spain)
Arriola, Enrique Ruiz +1 more
openaire +2 more sources
Relativistic corrections to the pair Bc-meson production in e+e− annihilation
Nuclear Physics B, 2016 Relativistic corrections to the pair Bc-meson production in e+e−-annihilation are calculated. We investigate a production of pair pseudoscalar, vector and pseudoscalar+vector Bc-mesons in the leading order perturbative quantum chromodynamics and ...
A.A. Karyasov +2 more
doaj +1 more source
Pseudoscalar Mesons and Emergent Mass
Few-Body SystemsAbstractDespite its role in the continuing evolution of the Universe, only a small fraction of the mass of visible material can be attributed to the Higgs boson alone. The overwhelmingly dominant share may/should arise from the strong interactions that act in the heart of nuclear matter; namely, those described by quantum chromodynamics.
Raya, Khépani +4 more
openaire +3 more sources
q‐Deformed Glueball Spectrum in AdS/QCD Correspondence
Advances in High Energy Physics, Volume 2024, Issue 1, 2024.This work presents the application of the q‐algebra in the glueball spectrum. This algebra is implemented through Jackson’s derivatives in a Schrödinger‐like equation resulting from the gravity fluctuations around the braneworld scenario in five dimensions.
Fabiano F. Santos +2 more
wiley +1 more source
Physics Letters B, 2017 The Covariant Spectator Theory (CST) is used to calculate the mass spectrum and vertex functions of heavy–light and heavy mesons in Minkowski space. The covariant kernel contains Lorentz scalar, pseudoscalar, and vector contributions.
Sofia Leitão +3 more
doaj +1 more source
Negative Parity N* Resonances in an Extended GBE
, 2003 In this paper, we calculate the masses and mixing angles of L=1 negative parity N* resonances in an extended GBE (Goldstone-boson-exchange model) with harmonic-oscillator wave functions.
Brodsky +26 more
core +1 more source
The annihilation of virtual photons into pseudoscalar mesons [PDF]
The European Physical Journal C, 2001 We investigate the possibility to constrain the pion distribution amplitude from the gamma* gamma* -> pi transition. For a surprisingly large range in the two photon virtualities we find that the transition form factor is essentially independent of the distribution amplitude. This in turn entails a parameter-free prediction of QCD. The gamma* gamma*
Diehl, M., Kroll, P., Vogt, C.
openaire +5 more sources
, 2010 The meson masses and mixing angles have been calculated for the scalar and pseudoscalar sector in the framework of the generalized 2+1 flavor Polyakov loop augmented quark meson linear sigma model. We have given the results for two different forms of the
J. I. Kapusta +2 more
core +1 more source
Soft two-meson-exchange nucleon-nucleon potentials. I. Planar and crossed-box diagrams [PDF]
, 1996 Pion-meson-exchange nucleon-nucleon potentials are derived for two nucleons in the intermediate states. The mesons we include are (i) pseudoscalar mesons: $\pi, \eta, \eta'$; (ii) vector mesons: $\rho, \omega, \phi$; (iii) scalar mesons: $a_{0}(980 ...
A. Klein +35 more
core +3 more sources