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arXiv 1105.3636hep-ph
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具有一个普适额外维的模型中B介子到奇异张量介子的跃迁

B to strange tensor meson transition in a model with one universal extra dimension

N. Katirci, K. Azizi

摘要:

分析了普适额外维模型中的半轻子$B\to K_2^*(1430)l^+l^-$跃迁。特别地,我们给出了相关的观测量,如分支比,偏振分布和前向后不对称性的额外维的紧致化因子(1/R)的敏感性。从额外的维度模型得到的结果显示整体上相当大的偏差,从标准模型的预测值的小值的紧致化因子。这可以被认为是额外维度存在的迹象。

英文摘要:

We analyze the semileptonic $B\to K_2^*(1430)l^+l^-$ transition in universal extra dimension model. In particular, we present the sensitivity of related observables such as branching ratio, polarization distribution and forward-backward asymmetry to the compactification factor (1/R) of extra dimension. The obtained results from extra dimension model show overall a considerable deviation from the standard model predictions for small values of the compactification factor. This can be considered as an indication for existence of extra dimensions.

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