论文标题
$ b \ s \ ell^+\ ell^ - $ transitions in $ b \ in $ b \ in ymi-Crancrusive Lepton风味普遍比率
Semi-inclusive Lepton Flavor Universality ratio in $b\to s\ell^+\ell^-$ transitions
论文作者
论文摘要
我们构建了一个半精致的Lepton风味普遍性（LFU）比率，$r_σ$，以测试$ b \ in $ b \ in $ b \ to s \ ell^+el^el^el^el^ - $ $ e^+e^+e^+e^ - $ $ $ $ b $ -meson工厂的通用性。结合不同的衰减通道，这种可观察到的可观察到对可能违反短距离起源的可能违反的敏感性，但在偏离其标准模型预测的情况下，保留了干净的理论解释，$r_σ^{\ rm sm} = 1 $。
We construct a semi-inclusive Lepton Flavour Universality (LFU) ratio, $R_Σ$, to test $μ/e$ universality in $b\to s\ell^+\ell^-$ transitions at $e^+e^-$ $B$-meson factories. Combining different decay channels, this observable maximises the sensitivity to possible LFU violations of short distance origin, yet preserving a clean theoretical interpretation in case of a deviation from its Standard Model prediction, $R_Σ^{\rm SM}=1$.
