Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2002-11-12
Commun.Theor.Phys. 39 (2003) 197-204
Physics
High Energy Physics
High Energy Physics - Phenomenology
13 pages, 1 figure
Scientific paper
Since long-lived light bottom squark (sbottom) and its anti-particle with a mass close to the bottom quark have not been excluded by experiments so far, we consider such a sbottom to combine with its anti-particle to form a color singlet meson-like bound state or to combine with a common anti-quark to form a fermion-like one, or accordingly their anti-particles to form an anti-particle bound system. Namely we calculate the low-lying spectrum of the systems based on QCD inspired potential model. To be as relativistic as possible, we start with the framework of Bethe-Salpeter (BS) equation even for non-relativistic binding systems. Finally, we obtain the requested spectrum by constructing general forms of the BS wave functions and solving the BS equations under instantaneous approximation.
Chang Chao-Hsi
Cui Jian Ying
Yang Jin Min
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