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arXiv 0802.0739hep-ph
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非粒子物理中的B \to 0^{+}(1^{+})+缺失能量

B \to 0^{+}(1^{+}) + missing energy in Unparticle Physics

M. Jamil Aslam, Cai-Dian Lu

摘要:

研究了非粒子$\mathcal{U}$作为$B$介子p波衰变中能量丢失源的效应。讨论了在标量和矢量非粒子算符存在下,微分分支比对$K_{0}^{\ast}(K_{1}) -$ %介子能量的依赖关系,发现加入这些算符后,微分分支比与标准模型值有明显的偏离.最后,我们给出了上述衰变的分支比与有效耦合、截断尺度$Λ_{% \mathcal{U}}$和尺度维数$d_{\mathcal{U}}$等非粒子物质参数的关系。

英文摘要:

We examine the effects of an unparticle $\mathcal{U}$ as a possible source of missing energy in the p-wave decays of $B$ meson. The dependence of the differential branching ratio on the $K_{0}^{\ast}(K_{1}) -$% meson's energy is discussed in the presence of scalar and vector unparticle operators and significant deviation from the standard model value is found after addition of these operators. Finally, we have shown the dependence of branching ratio for the above said decays on the parameters of the unparticle stuff like the effective couplings, cutoff scale $Λ_{% \mathcal{U}}$ and the scale dimensions $d_{\mathcal{U}}$.

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