论文标题
$ b \ rightarrow se^+e^ - $的新物理学
New physics in $b\rightarrow se^+e^-$: A model independent analysis
论文作者
论文摘要
Lepton的普遍性违反了风味比$ r_k/r_ {k^*} $表示$ b \ in $ b \ tosμ^+μ^ - $或$ b \ in $ b \ to s E^+ e^ - $或两者的新物理。如果新物理学仅为$ b \ to s e^+ e^ - $ transition，则相应的新物理操作员原则上可以具有任何Lorentz结构。在这项工作中，我们仅在一次或两个类似的操作员时考虑一个有效的操作员，仅在$ b \ to se^+e^ - $衰减中对新物理学进行独立模型分析。我们在我们的分析中将所有测量值包括在$ b \ rightarrow se^+e^ - $ sector以及$ r_k/r_ {k^*} $中。我们表明，具有矢量/轴向矢量运算符的各种新物理方案可以解释$ r_k/r_ {k^*} $ data，但是那些具有标量/伪内科算子和张量子操作员的人不能。我们还表明，$ b \ in $ b \ to k^* e^+ e^ - $衰减最适合区分不同允许的解决方案的方位角可观察的$ p_1 $。
The lepton universality violating flavor ratios $R_K/R_{K^*}$ indicate new physics either in $b \to s μ^+ μ^-$ or in $b \to s e^+ e^-$ or in both. If the new physics is only $b \to s e^+ e^-$ transition, the corresponding new physics operators, in principle, can have any Lorentz structure. In this work, we perform a model independent analysis of new physics only in $b \to se^+e^-$ decay by considering effective operators either one at a time or two similar operators at a time. We include all the measurements in $b\rightarrow se^+e^-$ sector along with $R_K/R_{K^*}$ in our analysis. We show that various new physics scenarios with vector/axial-vector operators can account for $R_K/R_{K^*}$ data but those with scalar/pseudoscalar operators and with tensor operators can not. We also show that the azimuthal angular observable $P_1$ in $B \to K^* e^+ e^-$ decay is most suited to discriminate between the different allowed solutions.
