A unified scheme for flavoured mesons and baryons
P.C. Vinodkumar1,3 - J.N. Pandya1 - V.M. Bannur2 - S.B. Khadkikar3
1 Dept. of Physics, Sardar Patel University, Vallabh Vidyanagar, Gujarat, India -
388 120
2 Institute for Plasma Research, Bhat, Gandhinagar, Gujarat, India - 382 428
3 IUCAA, P. O. Box No. 4, Ganeshkhind, Pune, India - 411 007
Received: 26 February 1998 / Revised version: 1 September 1998 Communicated by F. Lenz
Abstract
The masses of mesons and baryons with various flavour combinations
for 
, 
, 
, qqq, qqQ, qQQ, QQQ etc. are
computed using a confinement scheme based on harmonic approximation
with Lorentz scalar plus vector character. The residual two body coulombic
interactions and the spin-hyperfine interactions of the confined one gluon
exchange effects are perturbatively calculated and added to the confinement
energy to get the mass of the hadron. With all the parameters fixed to get ground state
masses of hadrons containing like flavour combinations, a parameter free
prediction of the leptonic decaywidths of vector mesons and their sizes are
being made. Our results on the baryonic and mesonic masses with open
flavours and the predictions on the leptonic decay widths are in good
agreement with the respective experimental values.
PACS
12.10.Dm Unified theories and models of strong and electroweak interacting
Copyright Springer-Verlag
