Results 31 to 40 of about 152,368 (295)

Flavour-symmetry correction to the ``naive'' Zweig rule for the scalar-meson flavour-singlet [PDF]

open access: yes, 1999
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]

open access: yes, 2001
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]

open access: yesModern Physics Letters A, 2020
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

Feasibility to measure the properties of φ(1020) meson in collisions of bismuth nuclei at an energy of 9.2 GeV in the NICA collider using the MPD experimental setup

open access: yesSt. Petersburg Polytechnical University Journal: Physics and Mathematics
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]

open access: yes, 1998
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

open access: yesAnnals of Physics, 2009
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

open access: yesPhysics Letters B, 2017
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 states

open access: yesPhysics Letters B, 2020
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

open access: yesJournal of High Energy Physics, 2023
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]

open access: yes, 1999
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

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