Heavy-quark bound states and a potential model with relativistic corrections

1979 ◽  
Vol 20 (11) ◽  
pp. 2978-2982 ◽  
Author(s):  
J. S. Kang
1997 ◽  
Vol 12 (22) ◽  
pp. 3951-3963 ◽  
Author(s):  
Gerhard A. Schuler

The hierarchy of long-distance matrix elements (MEs) for quarkonium production depends on their scaling with the velocity v of the heavy quark in the bound state. Ranges for the velocities in various bound states and uncertainties of colour-singlet MEs are estimated in a quark-potential model. Different possibilities for the scaling with v of the MEs are discussed; they depend on the actual values of v and the QCD scale. As an application, J/ψ polarization in e+e- annihilation is discussed. The first non-perturbative estimates of colour-octet MEs are presented and compared with phenomenological determinations. Finally, various predictions of prompt quarkonium production at LEP are compared.


1983 ◽  
Vol 130 (3-4) ◽  
pp. 209-214 ◽  
Author(s):  
Kaoru Hagiwara ◽  
Steve Jacobs ◽  
M.G. Olsson ◽  
K.J. Miller
Keyword(s):  

1987 ◽  
Vol 02 (03) ◽  
pp. 183-191 ◽  
Author(s):  
S. GHOSH ◽  
A.K. ROY ◽  
S. MUKHERJEE

The effect of the long-range confining potential on the two gluino bound states has been studied in a particular potential model. Some useful inequalities for the value of the wave function at the origin, [Formula: see text] have been derived for a more general class of potentials. The results will be useful for estimating various decay widths.


1983 ◽  
Vol 131 (4-6) ◽  
pp. 455-460 ◽  
Author(s):  
Kaoru Hagiwara ◽  
Steve Jacobs ◽  
M.G. Olsson ◽  
K.J. Miller
Keyword(s):  

2014 ◽  
Vol 23 (07) ◽  
pp. 1461007
Author(s):  
Makoto Oka

Heavy quarks play special roles in the hadron spectroscopy. Some distinct features of heavy quark dynamics and their significance in the P-wave baryons with a single heavy quark are discussed. We also explore a new color configuration in exotic tetra-quark mesons with two heavy quarks. Finally, possibility of bound states of a charmed baryon with a nucleon and nuclei are examined.


1991 ◽  
Vol 43 (1) ◽  
pp. 196-208 ◽  
Author(s):  
B. A. Thacker ◽  
G. Peter Lepage
Keyword(s):  

2015 ◽  
Vol 70 (7) ◽  
pp. 499-505 ◽  
Author(s):  
Zahra Sharifi ◽  
Fateme Tajic ◽  
Majid Hamzavi ◽  
Sameer M. Ikhdair

AbstractThe Killingbeck potential model is used to study the influence of the external magnetic and Aharanov–Bohm (AB) flux fields on the splitting of the Dirac energy levels in a 2+1 dimensions. The ground state energy eigenvalue and its corresponding two spinor components wave functions are investigated in the presence of the spin and pseudo-spin symmetric limit as well as external fields using the wave function ansatz method.


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