Heavy quark spectroscopy

Non-relativistic Schr?dinger wave equation has been solved numerically by MATSLISE package to calculate mass spectra of t $ bar t $ bar t system for Cornell, Song-Lin and Turin potentials taking as the top of the recently reported experimental value of 177.1 GeV as the top quark mass. Energy splitting (2S-1S) with variation of mass has been calculated and compared with those obtained in earlier calculations. Variation of leptonic decay width with top quark mass has also been studied.