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We study the decay constants and form factors of the ground-state s-wave andlow-lying p-wave mesons within a covariant light-front approach. Numericalresults of the B to D** transition form factors, where D** denotes genericallya p-wave charmed meson, are compared with other model calculations. Predictionson the decay rates for Bbar to D** pi, D** rho, Dbar**_s D* by using thesedecay constants and form factors are in agreement with the experimental data.The universal Isgur-Wise functions, xi, tau_{1/2}, tau_{3/2} are obtained andare used to test the Bjorken and Uraltsev sum rules.Comment: 6 pages, 1 figure, talk presented at 2nd International Conference on  Flavor Physics, Seoul, Oct. 6-11, 200

COVARIANT LIGHT-FRONT APPROACH FOR S-WAVE AND P-WAVE MESONS