Quarkonium mass spectra from the temperature dependent Bethe-Salpeter equation with logarithmic and Coulomb plus square-root kernels
G.P. Malik1 - Raman K. Jha2,3 - V.S. Varma2
1 Theory Group, School of Environmental Sciences, Jawaharlal Nehru University, New
Delhi 110 067, India
(e-mail: malik@jnuniv.ernet.in)
2 Department of Physics and Astrophysics, University of Delhi, Delhi 110 007, India (e-mail:
vsv@csec.ernet.in)
3 Department of Physics, Manipal Institute of Technology, Sikkim 5th mile, Tadong, Gangtok 737
102, Sikkim, India
Received: 9 February 1998 / Revised version: 27 April 1998 Communicated by F. Lenz
Abstract
The study of meson formation in quark-gluon plasma
using a temperature-dependent Bethe-Salpeter formalism presented earlier,
is now extended to a logarithmic and a combination of a Coulomb plus a
square-root kernel. We are able to get good fits to the meson masses with
both kinds of kernels and our present results are qualitatively similar to
those obtained for the Coulomb plus a linear kernel.
PACS
12.40.-y Other models for strong interactions
Copyright Springer-Verlag
