Results 51 to 60 of about 112,653 (308)
Revisiting the pseudoscalar meson and glueball mixing and key issues in the search for pseudscalar glueball state [PDF]
, 2017 We revisit the mixing mechanism for pesudscalar mesons and glueball which is introduced by the axial vector anomaly. We demonstrate that the physical mass of the pseudoscalar glueball does not favor to be lower than 1.8 GeV if all the parameters are ...
Wenzer Qin, Qiang Zhao, X. Zhong
semanticscholar +1 more source
Twist-2 pseudoscalar and vector meson distribution amplitudes in light-front quark model with exponential-type confining potential [PDF]
Physical Review D, 2019 We study the twist-2 distribution amplitudes (DAs) and the decay constants of pseudoscalar light ($\pi$, $K$) and heavy ($D$, $D_s$, $B$, $B_s$) mesons as well as the longitudinally and transversely polarized vector light ($\rho$, $K^*$) and heavy ($D^*$,
Nisha Dhiman, H. Dahiya, C. Ji, H. Choi
semanticscholar +1 more source
Radiative decays of vector and pseudoscalar nonets
EPJ Web of Conferences, 2012 Using a counting scheme which treats the light pseudoscalar and the light vector-meson nonet on equal footing, the decays of the narrow light vector mesons into a pseudoscalar meson and a dilepton and of the η′ meson into an ɷ meson and a dielectron are ...
Lutz M.F.M., Leupold S., Terschlüsen C.
doaj +1 more source
The Ds0(2590)+ as the dressed cs¯(21S0) meson in a coupled-channels calculation
Physics Letters B, 2022 The recent discovery of the Ds0(2590)+ meson by the LHCb Collaboration has stimulated the analysis of meson-meson channels effects in the two-body quark-antiquark meson spectrum.
Pablo G. Ortega +3 more
doaj +1 more source
On the mixing of pseudoscalar mesons
Physics Letters B, 1983 Abstract We calculate the mixing between a glueball and qq pseudoscalars (both the ground state and the first radial excitation) in the framework of the MIT bag model. Our results are large, strongly violate SU(3) and are very sensitive to small changes in the parameters of the model.
Donoghue, John, Gomm, Harald
openaire +4 more sources
Hidden gauge formalism for the radiative decays of axial-vector mesons [PDF]
, 2008 The radiative decay of the axial-vector resonances into a pseudoscalar meson and a photon is studied using the vector meson Lagrangian obtained from the hidden gauge symmetry (HGS) formalism.
A. Hosaka +8 more
core +3 more sources
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
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
Bottom Baryon Decays to Pseudoscalar Meson and Pentaquark [PDF]
, 2015 Based on SU(3) flavor symmetry, we decompose the decay amplitudes of bottom baryon decays to a pseudoscalar meson and an octet (a decuplet) pentaquark in terms of three (two) invariant amplitudes T1 and T2,3 (T˜1 and T˜2) corresponding to external W ...
Hai-Yang Cheng, Chun-Khiang Chua
semanticscholar +1 more source
Witten-Veneziano mechanism and pseudoscalar glueball-meson mixing in holographic QCD [PDF]
Physical Review D, 2019 We revisit the $U(1)_A$ anomaly in the holographic model of low-energy QCD by Witten, Sakai, and Sugimoto, presenting a new and direct derivation of the Witten-Veneziano mechanism for generating the mass of the $\eta'$ through an anomalous mixing of the ...
J. Leutgeb, A. Rebhan
semanticscholar +1 more source