Results 51 to 60 of about 27,535 (267)
European Physical Journal C: Particles and Fields, 2023 We calculate the complete T matrices of the elastic light pseudoscalar meson and heavy meson scattering to the third order in heavy meson chiral perturbation theory. We determine the low-energy constants by fitting the phase shifts and scattering lengths
Bo-Lin Huang +3 more
doaj +1 more source
Decay of the pseudoscalar glueball into vector, axial-vector, scalar and pseudoscalar mesons
European Physical Journal C: Particles and Fields, 2023 We resume the investigation of the ground-state pseudoscalar glueball, $$J^{PC}=0^{-+}$$ J PC = 0 - + , by computing its two- and three-body decays into vector and axial-vector quark-antiquark meson fields additional to scalar and pseudoscalar mesons ...
Walaa I. Eshraim
doaj +1 more source
Production of Pseudoscalar Mesons
Fizika B : a journal of experimental and theoretical physics, 2003 11 pages, 11 figures, contribution to proceedings of "2nd International Conference on Nuclear and Particle Physics with CEBAF at JLab," Dubrovnik, Croatia, 26-31 May ...
Briscoe, W. J. +3 more
openaire +3 more sources
Meson exchange model for pseudoscalar meson-meson scattering [PDF]
Nuclear Physics A, 1990 A dynamical model for pseudoscalar-pseudoscalar meson scattering based on meson exchange, suitable for use in a variety of low- and intermediate-energy mesonic interactions, has been constructed and applied to ππ and kπ scattering with good quantitative results.
J. Speth +3 more
openaire +2 more sources
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
PSEUDOSCALAR MESONS IN NUCLEAR MEDIUM [PDF]
Nuclear Many-Body and Medium Effects in Nuclear Interactions and Reactions, 2003 Invited talk at the Workshop "MEDIUM02", Kyushu, Oct.25 - 26 ...
openaire +4 more sources
Spectra and decay rates of bb̄ meson using Gaussian wave function
EPJ Web of Conferences, 2015 Using the Gaussian wave function mass spectra and decay rates of bb̄ meson are investigated in the framework of phenomenological quark anti-quark potential (coulomb plus power) model consisting of relativistic corrections to the kinetic energy term.
Rai Ajay Kumar +2 more
doaj +2 more sources
Effective masses of diquarks [PDF]
, 2002 We study meson and diquark bound states using the rainbow-ladder truncation of QCD's Dyson-Schwinger equations. The infrared strength of the rainbow-ladder kernel is described by two parameters.
Maris, P.
core +2 more sources
Deconfinement and Freezeout Boundaries in Equilibrium Thermal Models
Advances in High Energy Physics, Volume 2020, Issue 1, 2020., 2020 In different approaches, the temperature‐baryon density plane of QCD matter is studied for deconfinement and chemical freezeout boundaries. Results from various heavy‐ion experiments are compared with the recent lattice simulations, the effective QCD‐like Polyakov linear‐sigma model, and the equilibrium thermal models.
Abdel Nasser Tawfik +4 more
wiley +1 more source
Evidence for a new pseudoscalar meson
Physics Letters B, 1981 Abstract Performing a PWA of the π − π − π + system over the −t p/p range 0.2 to 0.4 GeV 2 we find evidence for a J P = 0 − , J G =1 − meson of mass 1342 ± 20 MeV and width 220 ±70 MeV decaying into ϵπ. This state is produced by natural parity exchange with a slope similar to that of elastic scattering.
M. Bonesini +13 more
openaire +3 more sources