Results 81 to 90 of about 1,708,127 (184)

Vector mesons on the light front

Physics Letters B, 2004
We apply the light-front quantization to the Nambu--Jona-Lasinio model with the vector interaction, and compute vector meson's mass and light-cone wavefunction in the large N limit. Following the same procedure as in the previous analyses for scalar and pseudo-scalar mesons, we derive the bound-state equations of a q-qbar system in the vector channel ...
S. Maedan, K. Naito, Kazunori Itakura
openaire   +2 more sources

Dilepton production in proton-proton reaction at 4.5 GeV with the HADES spectrometer [PDF]

EPJ Web of Conferences
Spectra of dileptons emitted in hadron collisions are important tool to study electromagnetic decays of resonances and the validity of the Vector Meson Dominance model.
Abou Yassine Rayane
doaj   +1 more source

Vector meson production at low x from gauge/gravity duality [PDF]

, 2013
A bstractWe use gauge/gravity duality to study vector meson (J/Ψ, ρ0, Ω, Φ) production in electron-proton scattering, in the limit of high center of mass energy at fixed momentum transfer, corresponding to the limit of low Bjorken x, where the process is
M. Costa, M. Djurić, N. Evans
semanticscholar   +1 more source

Excited heavy meson decays to light vector mesons: implications for spectroscopy [PDF]

Phys. Rev. D 98, 114028 (2018), 2018
We analyze strong decays of excited charmed and beauty mesons into a light vector meson, exploiting the effective field theory based on heavy quark (HQ) symmetries for heavy mesons, and on the hidden gauge symmetry to incorporate light vector mesons.
arxiv   +1 more source

Axial anomaly and vector meson dominance model [PDF]

, 2013
A connection between the axial anomaly and the vector meson dominance model is revealed for the processes of pseudoscalar meson-photon transitions. The analytic continuation of the anomaly sum rules, which are exact QCD relations following follow from ...
Y. Klopot, A. Oganesian, O. Teryaev
semanticscholar   +1 more source

Charm meson scattering cross sections by pion and rho meson [PDF]

Nucl.Phys. A689 (2001) 965-979, 2000
Using the local flavor SU(4) gauge invariance in the limit of vanishing vector meson masses, we extend our previous study of charm meson scattering cross sections by pion and rho meson, which is based only on the pseudoscalar-pseudoscalar-vector meson couplings, to include also contributions from the couplings among three vector mesons and among four ...
arxiv   +1 more source

Chiral behavior of vector meson self-energies [PDF]

, 2013
We employ a chiral Lagrangian framework with three dynamical flavors to calculate the masses of the lowest-lying vector mesons to one-loop accuracy, and use the resulting formulas to extrapolate recent lattice data from the QCDSF Collaboration on vector ...
P. Bruns, L. Greil, A. Schafer
semanticscholar   +1 more source

Excited vector mesons: phenomenology and predictions for a yet unknown vector ss state with a mass of about 1.93 GeV

EPJ Web of Conferences, 2018
The firm understanding of standard quark-antiquark states (including excited states) is necessary to search for non-conventional mesons with the same quantum numbers.
Piotrowska M., Giacosa F.
doaj   +1 more source

Production of one or two vector mesons in peripheral high-energy collisions of heavy ions [PDF]

, 2012
We study the production of spin-one mesons in high-energy heavy-ion collisions with peripheral kinematics in the framework of QED. The cross sections of the production of a single vector meson and of two different ones are presented. The explicit dependence on the virtuality of the intermediate vector meson is obtained within a quark model.
arxiv   +1 more source