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Fermi motion parameter $p_F$ of $B$ meson from relativistic quark model

Daesung Hwang·C. S. Kim·Wuk Namgung
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Abstract

The Fermi motion parameter $p_{_F}$ is the most important parameter of ACCMM model, and the value $p_{_F} \sim 0.3$ GeV has been used without clear theoretical or experimental evidence. So, we attempted to extract the possible value for $p_{_F}$ theoretically in the relativistic quark model using quantum mechanical variational method. We obtained $p_{_F} \sim 0.5$ GeV, which is somewhat larger than 0.3, and we also derived the eigenvalue of $E_B \simeq 5.5$ GeV, which is is reasonable agreement with $m_B=5.28$ GeV.

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Daesung Hwang, C. S. Kim, Wuk Namgung. 1994-07-01. Fermi motion parameter $p_F$ of $B$ meson from relativistic quark model. https://arxiv.org/abs/hep-ph/9406436

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