Results 31 to 40 of about 26,637 (219)
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.
Lohse, Detlef +3 more
openaire +1 more source
Assignments of the X(4140), X(4500), X(4630), and X(4685) Based on the QCD Sum Rules
Advances in High Energy Physics, Volume 2021, Issue 1, 2021., 2021 In this article, we take into account our previous calculations based on the QCD sum rules, and tentatively assign the X(4630) as the Ds∗D¯s1−Ds1D¯s∗ tetraquark molecular state or csPc¯s¯A+csAc¯s¯P tetraquark state with the JPC = 1−+, and assign the X(3915) and X(4500) as the 1S and 2S csAc¯s¯A tetraquark states, respectively, with the JPC = 0++. Then,
Zhi-Gang Wang, Ruilin Zhu
wiley +1 more source
The light scalar mesons as tetraquarks
Physics Letters B, 2016 We present a numerical solution of the four-quark Bethe–Salpeter equation for ground-state scalar tetraquarks with JPC=0++. We find that the four-body equation dynamically generates pseudoscalar-meson poles in the Bethe–Salpeter amplitude.
Gernot Eichmann +2 more
doaj +1 more source
Charm meson scattering cross sections by pion and rho meson [PDF]
, 2001 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 ...
Baier +20 more
core +2 more sources
Study of the Ground‐State Energies of Some Nuclei Using Hybrid Model
Advances in High Energy Physics, Volume 2021, Issue 1, 2021., 2021 The quark‐quark (QQ) interaction as a perturbed term to the nucleon‐nucleon interaction (NN) without any coupling between them is studied in a hybrid model. This model is used to calculate the ground‐state energies of 2H1 and 4He2 nuclei. In a semirelativistic framework, this model is encouraged for light nuclei and the instanton‐induced interaction by
R. Hussien +3 more
wiley +1 more source
Magnetic polarizabilities of light mesons in SU(3) lattice gauge theory
Nuclear Physics B, 2015 We investigate the ground state energies of neutral pseudoscalar and vector meson in SU(3) lattice gauge theory in the strong abelian magnetic field.
E.V. Luschevskaya +3 more
doaj +1 more source
Trace and Axial Anomalies on Equal Footing
Advances in High Energy Physics, 2020 We discussed that for some particular nonsupersymmetric theories, a generalized symmetry that includes both the scale and axial transformations and leads to a single current may contain also a pseudoscalar term. The method, inspired by the superconformal
Renata Jora
doaj +1 more source
European Physical Journal C: Particles and Fields, 2018 We investigate the decays of $$\bar{B}^0_s$$ B¯s0 , $$\bar{B}^0$$ B¯0 and $$B^-$$ B- into $$\eta _c$$ ηc plus a scalar or vector meson in a theoretical framework by taking into account the dominant process for the weak decay of $$\bar{B}$$ B¯ meson into $
Ju-Jun Xie, Gang Li
doaj +1 more source
Chiral Properties of Pseudoscalar Mesons on a Quenched $20^4$ Lattice with Overlap Fermions [PDF]
, 2001 The chiral properties of the pseudoscalar mesons are studied numerically on a quenched $20^4$ lattice with the overlap fermion. We elucidate the role of the zero modes in the meson propagators, particularly that of the pseudoscalar meson.
Dong, S. J. +5 more
core +3 more sources
Mixing of Pseudoscalar Mesons [PDF]
Physica Scripta, 2002 21 pages, 6 figures, Proc.
Feldmann, Th., Kroll, P.
openaire +2 more sources