Results 31 to 40 of about 152,368 (295)
Flavour-symmetry correction to the ``naive'' Zweig rule for the scalar-meson flavour-singlet [PDF]
We present flavour-symmetric couplings for the OZI-allowed three-meson vertices of effective meson theories, which for the case of the two-meson channels to which the flavour-singlet scalar meson couples, are endowed with a correction factor with respect
Abe, Eef van Beveren, George Rupp
core +2 more sources
Revisiting spin alignment of heavy mesons in its inclusive production [PDF]
In the heavy quark limit inclusive production rate of a heavy meson can be factorized, in which the nonperturbative effect related to the heavy meson can be characterized by matrix elements defined in the heavy quark effective theory.
Abachi +27 more
core +2 more sources
Inelastic meson-meson scattering in hadronic matter [PDF]
We review studies of inelastic meson-meson scattering. In nonperturbative schemes with chiral-perturbation-theory Lagrangians and in models based on effective meson Lagrangians, inelastic meson-meson scattering leads to the successful identification of resonances in meson-meson reactions, adequate inclusion of final state interactions in particle ...
Xu, Xiao-Ming, Weber, H. J.
openaire +2 more sources
We report results on a feasibility study of measuring the properties of φ (1020) resonance in collisions of bismuth nuclei at an energy of 9.2 GeV using the MPD detector at the NICA collider.
Berdnikov Yaroslav +4 more
doaj +1 more source
Semileptonic and Rare $B$-meson transitions in a QCD relativistic potential model [PDF]
Using a QCD relativistic potential model, previously applied to the calculation of the heavy meson leptonic constants, we evaluate the form factors governing the exclusive decays $B\to\rho\ell\nu$, $B\to K^*\gamma$ and $B\to K^*\ell^+\ell^-$.
Colangelo, P. +5 more
core +2 more sources
Meson–meson interactions and Regge propagators
21 pages plain LaTeX with 3 ...
Van Beveren, Eef, Rupp, George
openaire +3 more sources
The role of meson exchanges in light-by-light scattering
We discuss the role of meson exchange mechanisms in γγ→γγ scattering. Several pseudoscalar (π0, η, η′(958), ηc(1S), ηc(2S)), scalar (f0(500), f0(980), a0(980), f0(1370), χc0(1P)) and tensor (f2(1270), a2(1320), f2′(1525), f2(1565), a2(1700)) mesons are ...
Piotr Lebiedowicz, Antoni Szczurek
doaj +1 more source
ηc-nucleus bound state energies are calculated for various nuclei. Essential input for the calculations, namely the medium-modified D and D⁎ meson masses, as well as the density distributions in nuclei, are calculated within the quark-meson coupling (QMC)
J.J. Cobos-Martínez +3 more
doaj +1 more source
Stark effect and dissociation of mesons in holographic conductor
We study the meson spectrum of the N $$ \mathcal{N} $$ = 4 supersymmetric Yang-Mills theory with N $$ \mathcal{N} $$ = 2 fundamental hypermultiplets for a finite electric field by using the D3/D7 model.
Shuta Ishigaki +2 more
doaj +1 more source
Two Meson Scattering Amplitudes and their Resonances from Chiral Symmetry and the N/D Method [PDF]
We study the vector and scalar meson-meson amplitudes up to \sqrt{s}\lesssim 1.4 GeV and their associated spectroscopy. The study has been done considering jointly the N/D method, Chiral Symmetry and implications from large N_c QCD.
Oller, J. A., Oset, E.
core +3 more sources

