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 -
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
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.
12.10.Dm Unified theories and models of strong and electroweak interacting