Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2004-10-11
Commun.Theor.Phys. 44 (2005) 887-890
Physics
High Energy Physics
High Energy Physics - Phenomenology
LaTeX, 9 pages with 1 figure
Scientific paper
The rare decay $b\to ss\bar{d}$ is studied in a vector quark model by adding
the contributions from exotic vector-like quarks. We find that the contribution
from box diagrams amounts to $10^{-9}$ in the branching ratio, while the
$Z$-mediated tree level contribution is negligible.
Cai Hai-Ying
Zhang Da-Xin
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