scholarly journals SPECTRA OF QUARKONIA AT FINITE TEMPERATURE

2006 ◽  
Vol 21 (17) ◽  
pp. 1383-1391 ◽  
Author(s):  
D. U. MATRASULOV ◽  
F. C. KHANNA ◽  
KH. T. BUTANOV ◽  
KH. YU. RAKHIMOV

Finite-temperature spectra of heavy quarkonia are calculated by combining potential model and thermofield dynamics formalisms. The mass spectra of the heavy quarkonia with various quark contents are calculated. It is found that binding mass of the quarkonium decreases as temperature increases.

2019 ◽  
Vol 34 (37) ◽  
pp. 1950307 ◽  
Author(s):  
Ahmed Al-Jamel

Heavy [Formula: see text] and [Formula: see text] quarkonia are considered as systems confined within a hard-wall potential shaped after a linear combination of a cotangent — with a square co-secant function. Wave functions and energy spectra are then obtained in closed forms in solving by the Nikiforov–Uvarov method the associated radial Schrödinger equation in the presence of a centrifugal term. The interest in this potential is that in one parametrization, it can account for a conformal symmetry of the strong interaction, and in another for its perturbation, a reason for which we here employ it to study status of conformal symmetry in the heavy flavor sector. The resulting predictions on heavy quarkonia mass spectra and root mean square radii are compared with the available experimental data, as well as with predictions by other theoretical approaches. We observe that a relatively small conformal symmetry perturbing term in the potential suffices to achieve good agreement with data.


Open Physics ◽  
2014 ◽  
Vol 12 (11) ◽  
Author(s):  
Wanda Alberico ◽  
Stefano Carignano ◽  
Piotr Czerski ◽  
Arturo Pace ◽  
Marzia Nardi ◽  
...  

AbstractWe extend a previous work on the study of heavy charmonia and bottomonia in a deconfined quark-gluon plasma by considering the B c family of mesons. With the introduction of this bound state of a charm and a beauty quark, we investigate at finite temperature the behavior of the quarkonium, in an energy region between the ψ and the Y states.


2014 ◽  
Author(s):  
Jignesh N. Pandya ◽  
Ajay Kumar Rai ◽  
Pothodi Chackara Vinodkumar

Author(s):  
M. Abu-Shady ◽  
E. M. Khokha

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.


1983 ◽  
Vol 28 (7) ◽  
pp. 1716-1720 ◽  
Author(s):  
Suraj N. Gupta ◽  
Stanley F. Radford ◽  
Wayne W. Repko

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