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Kim (Dept. of Physics, Dae Sung Hwang (Dept. of Physics, Dongguk Univ.), Sejong Univ.), Wuk Namgung (Dept. of Physics, Yonsei Univ.)","submitted_at":"1996-04-03T02:23:14Z","abstract_excerpt":"Within the ACCMM model the average kinetic energy of heavy quark in a heavy-light meson is calculated as $\\langle {\\bf p}^2 \\rangle = {3 \\over 2} {p_{_F}}^2$, solely from the fact that the Gaussian momentum probability distribution has been taken in the ACCMM model. Therefore, the Fermi momentum parameter $p_{_F}$ of the ACCMM model is not a truly free parameter, but is closely related to the average kinetic energy of heavy quark, which is theoretically calculable in principle. 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