20 research outputs found
Mass Spectra and Decay Constants of Heavy-Light Mesons: A Case Study of QCD Sum Rules and Quark Model
In this paper we visited mass spectra and decay constants of pseudoscalar and
vector heavy-light mesons (, , and ) in the framework of QCD
sum rule and quark model. The harmonic oscillator wave function was used in
quark model while a simple interpolating current was used in QCD sum rule
calculation. We obtained good results in accordance with the available
experimental data and theoretical studies.Comment: 11 pages, 2 tables, 8 figure
S-wave Heavy Quarkonium Spectra: Mass, Decays and Transitions
In this paper we revisited phenomenological potentials. We studied S-wave
heavy quarkonium spectra by two potential models. The first one is power
potential and the second one is logarithmic potential. We calculated spin
averaged masses, hyperfine splittings, decay constants, leptonic decay widhts,
two-photon and two-gluon decay widths and some allowed M1 transitions. We
studied ground and 4 radially excited S-wave charmonium and bottomonium states
via solving nonrelativistic Schr\"odinger equation. Although the potentials
were studied in this paper is not directly QCD motivated potential, obtained
results are agree well with experimental data and other theoretical studies.Comment: 11 pages, 14 Table
A Study of Excited States in Hypercentral Constituent Quark Model via Artificial Neural Network
In this work, we have obtained mass spectra, radiative decay widths and
strong decay widths of newly observed excited states, i.e.
, , , and
. Mass spectrum is obtained in Hypercentral Constituent Quark
Model (hCQM) by solving six-dimensional nonrelativistic Schr\"odinger equation
via Artificila Neural Network (ANN). In this respect, radiative decay widhts
are calculated by a generalization of a framework from meson to baryon. Also,
strong decay widths of the low-lying states within model are
calculated. Obtained results are presented with the comparison of available
experimental data and other theoretical studies.Comment: 9 pages, 3 tables, 3 figures; slight modifications on the text,
numerical results revised, main conclusions unchange
Spin Averaged Mass Spectrum of Heavy Quarkonium via Asymptotic Iteration Method
In this paper we solved Schr\"odinger equation with Song-Lin potential by
using Asymptotic Iteration Method (AIM). We obtained spin-averaged energy
levels of charmonium and bottomonium via AIM. Obtained results agree well with
available experimental data and other theoretical studies.Comment: 3 pages, 2 table