Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1996-03-12
Phys.Lett. B377 (1996) 153-160; Phys.Lett. B379 (1996) 202-208
Physics
High Energy Physics
High Energy Physics - Phenomenology
13 pages, 3 figures and 1 tables; tarred, gzipped and uuencoded file icluding text, table and figures; to appear in Physics Le
Scientific paper
We test the parton model approach to inclusive $B \ra \gamma X_s$ and $B \ra e \bar{\nu} X_u$ processes by calculating a few moments of the distribution function. The $1/m_Q$ expansion of $b$-quark distribution function is discussed. We show that Peterson's fragmentation function is useful as the distribution function of $b$-quark but requires some improvements. By extension of Peterson's arguments, we obtain the refined form for the distribution function and with the refined function, we obtain the consistent results with the HQET.
Kim Jae Kwan
Lee Kang Young
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