We recorded the laser-induced fluorescence (LIF) excitation spectra of several HCBr (A) over tilde-(X) over tilde vibronic transitions between 580 nm and 630 nm in a direct current (DC) discharge supersonic free jet expansion. Dispersed fluorescence spectra, following excitation of these HCBr (A) over tilde-(X) over tilde vibronic transitions were successfully obtained for the first time. The analysis of the dispersed fluorescence spectra reveals the details of the vibrational structure of the (X) over tilde (1)A' state as well as that of the (a) over tilde (3)A" state. The vibrational frequencies were determined as 1119 cm(-1) (bend), 676 cm(-1) (C-Br stretch) for the (X) over tilde (1)A' state and 994 cm(-1) (bend), 733 cm(-1) (C-Br stretch) for the (a) over tilde (3)A" state. In addition, based upon the observation of the triplet state levels, the value of the triplet-singlet energy gap (the zero-point level energy gap) could be extracted from the dispersed fluorescence spectra and is to be approximately 2006 +/-8 cm(-1) (5.73 +/-0.02 kcal/mol).