Rare decays $B \to X_{s,d} ν\bar ν$ and $B_{s,d} \to l^+ l^-$ in the Topcolor-assisted Technicolor Model

Xiao Zhenjun; Jia Liqun; Lü Linxia; Lu Gongru

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arXiv · hep-ph/9903346

Rare decays $B \to X_{s,d} ν\bar ν$ and $B_{s,d} \to l^+ l^-$ in the Topcolor-assisted Technicolor Model

Xiao Zhenjun·Jia Liqun·Lü Linxia·Lu Gongru

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Abstract

We calculate the contributions to the rare decays $B \to X_{s,d} ν\bar ν$ and $B_{s,d} \to l^+l^-$ from one-loop $Z^0$-penguin diagrams in the framework of Topcolor-assisted Technicolor Model. Within the parameter space, we find that: (a) the new contribution from technipions is less than 2% of the standard model prediction; (b) the top-pions can provide a factor of 10 to 30 enhancement to the ratios in question; (c) the topcolor-assisted technicolor model is consistent with the current experimental data.

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Xiao Zhenjun, Jia Liqun, Lü Linxia, Lu Gongru. 1999-03-15. Rare decays $B \to X_{s,d} ν\bar ν$ and $B_{s,d} \to l^+ l^-$ in the Topcolor-assisted Technicolor Model. https://arxiv.org/abs/hep-ph/9903346

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