scholarly journals An analysis of Isgur-Wise function of heavy-light mesons within a higher dimensional potential model approach

2014 ◽  
Vol 481 ◽  
pp. 012020 ◽  
Author(s):  
Sabyasachi Roy ◽  
D K Choudhury
Keyword(s):  
Potential Model ◽  
Higher Dimensional ◽  
Light Mesons ◽  
Model Approach

Chiral particle/Photon emission from heavy-light mesons

2014 ◽  
Vol 29 ◽  
pp. 1460239
Author(s):  
Takayuki Matsuki ◽  
Kohichi Seo
Keyword(s):  
Radiative Decay ◽  
Potential Model ◽  
Lorentz Invariance ◽  
Photon Emission ◽  
Wave Functions ◽  
Relativistic Wave ◽  
Decay Widths ◽  
Light Mesons ◽  
Relativistic Potential

Partial decay widths of the heavy-light mesons, D, Ds, B, and Bs, emitting one chiral particle (π or K) or photon γ are evaluated in the framework of a relativistic potential model. Decay amplitudes are calculated by keeping the Lorentz invariance as far as possible and use has been made of the Lorentz-boosted relativistic wave functions of the heavy-light mesons. One of predictions of our calculation is very narrow widths of a few keV for yet undiscovered Bs(0+, 1+) mesons corresponding to 2S+1LJ = 3P0 and "3P1" assuming their masses to be 5617 and 5682 MeV, respectively, as calculated in our former paper. Sizable radiative decay widths of D* or [Formula: see text] are obtained by including the 1st order corrections in 1/mQ expansion, in the unit of keV; Γ(D*0 → D0 + γ) = 9.8, Γ (D*+ → D+ + γ) = 0.71, [Formula: see text] and large radiative decay widths of DsJ are obtained compared with non-relativistic results.

Proton decay in the potential model approach

1985 ◽  
Vol 27 (3) ◽  
pp. 477-480 ◽  
Author(s):  
P. Falkensteiner ◽  
W. Lucha ◽  
F. Sch�berl
Keyword(s):  
Potential Model ◽  
Proton Decay ◽  
Model Approach

scholarly journals Isgur–Wise function for heavy–light mesons in theD-dimensional potential model

2012 ◽  
Vol 86 (4) ◽  
pp. 045101 ◽  
Author(s):  
Sabyasachi Roy ◽  
B J Hazarika ◽  
D K Choudhury
Keyword(s):  
Potential Model ◽  
Light Mesons

Elastic and Ultrasonic Studies on RM (R = Tb, Dy, Ho, Er, Tm; M = Zn, Cu) Compounds

2019 ◽  
Vol 74 (12) ◽  
pp. 1123-1130
Author(s):  
Chandreshvar Prasad Yadav ◽  
Dharmendra Kumar Pandey ◽  
Devraj Singh
Keyword(s):  
Thermal Conductivity ◽  
Wave Propagation ◽  
Relaxation Time ◽  
Elastic Moduli ◽  
Potential Model ◽  
Thermal Relaxation ◽  
Ultrasonic Velocities ◽  
Nearest Neighbours ◽  
Thermo Physical Properties ◽  
Model Approach

AbstractThe present article comprises computation of elastic, ultrasonic, and thermo-physical properties of RM (R = Tb, Dy, Ho, Er, Tm; M = Zn, Cu) compounds at 300 K. The second-order elastic constants (SOECs) and elastic moduli are evaluated initially, using potential model approach considering interaction up to second nearest neighbours. The ultrasonic velocities are obtained for wave propagation along <100>, <110>, and <111> crystallographic directions using evaluated SOECs. The Debye temperature, specific heat at constant volume, thermal energy density, thermal conductivity, and thermal relaxation time are also calculated. The obtained results are compared and analysed for justification and application of materials.

Bound state solutions of the Dirac equation for the generalized Cornell potential model

2021 ◽  
Author(s):  
M. Abu-Shady ◽  
E. M. Khokha
Keyword(s):  
Dirac Equation ◽  
Mass Spectra ◽  
Potential Model ◽  
Spin Symmetry ◽  
Bound State ◽  
Energy Eigenvalues ◽  
Cornell Potential ◽  
Modified Kratzer Potential ◽  
Quadratic Potentials ◽  
Light Mesons

In this study, the bound state solutions of the Dirac equation (DE) have been determined with the generalized Cornell potential model (GCPM) under the condition of spin symmetry. The GCPM includes the Cornell potential plus a combination of the harmonic and inversely quadratic potentials. In the framework of the Nikiforov–Uvarov (NU) method, the relativistic and nonrelativistic energy eigenvalues for the GCPM have been obtained. The energies spectra of the Kratzer potential (KP) and the modified Kratzer potential (MKP) have been derived as particular cases of the GCPM. The present results have been applied to some diatomic molecules (DMs) as well as heavy and heavy-light mesons. The energy eigenvalues of the KP and MKP have been computed for several DMs, and they are fully consistent with the results found in the literature. In addition, the energy eigenvalues of the GCPM have been employed for predicting the spin-averaged mass spectra of heavy and heavy-light mesons. One can note that our predictions are in close agreement with the experimental data as well as enhanced compared to the recent studies.

Sign in / Sign up

Export Citation Format

Share Document