標題: LIGHT-FRONT HEAVY-QUARK EFFECTIVE THEORY AND HEAVY-MESON BOUND-STATES
作者: CHEUNG, CY
ZHANG, WM
LIN, GL
物理研究所
Institute of Physics
公開日期: 1-九月-1995
摘要: The heavy-quark effective theory is developed on the light front. Based on this effective theory, a light-front heavy-meson bound state with definite spin and parity is constructed. Within the effective theory, the Isgur-Wise function is derived in terms of the asymptotic Light-front bound state amplitudes in the limit m(Q) --> infinity; the results a general expression for arbitrary recoil velocities. With the asymptotic form of the BSW amplitudes, the Isgur-Wise function is given by xi(upsilon .upsilon') = 1/upsilon .upsilon. The slope at the zero-recoil point is rho(2) = -xi'(1) = 1, in excellent agreement with the recent CLEO result of rho(2) = 1.01 +/- 0.15 +/- 0.09.
URI: http://dx.doi.org/10.1103/PhysRevD.52.2915
http://hdl.handle.net/11536/1738
ISSN: 0556-2821
DOI: 10.1103/PhysRevD.52.2915
期刊: PHYSICAL REVIEW D
Volume: 52
Issue: 5
起始頁: 2915
結束頁: 2925
顯示於類別:期刊論文