论文标题
$（g-2）_μ$，$ r_ {d^{（\ ast）}} $的组合说明
Combined explanations of $(g-2)_μ$, $R_{D^{(\ast)}}$, $R_{K^{(\ast)}}$ anomalies in a two-loop radiative neutrino mass model
论文作者
论文摘要
由MUON异常磁矩（AMM）中的长期紧张和持续观察到B形异常的激励，$ R_ {D^{（\ ast）} $和$ R_ {K^{（\ ast）}} $的动机在此框架内的脱节现象。我们提出的模型由两个标量leptoquarks（LQS）组成，A $ su（2）_l $ singlet $ s_1 \ sim（\ Overline {3}，1,1/3）$和$ su（2）_l $ su（2）_l $ s_3 \ sim（\ sim） $ r_ {d^{（\ ast）}} $和$ r_ {k^{（\ ast）}} $ anmalies。由于存在$ s_1 $ lq的存在，该穆恩（Muon）对其$ g-2 $造成了手性增强的贡献，该$ s_1 $ lq占据了与标准模型预测的偏差。此外，我们引入了$ su（2）_l $ singlet标量diquark $ω\ sim（\ overline {6}，1,2/3）$，这是打破Lepton数字并散发出中微子质量的必要条件，并具有$ S_1 $和$ S_3 $ LQ的帮助。我们对这种设置进行了详细的现象学分析，并通过提供基准点来证明其生存能力，其中适合中微子振荡数据以及对MUON AMM拼图和风味异常的适当解释，同时满足所有其他风味违规和碰撞器的界限。
Motivated by the long-standing tension in the muon anomalous magnetic moment (AMM) and persistent observations of B-physics anomalies in $R_{D^{(\ast)}}$ and $R_{K^{(\ast)}}$ ratios, we construct a simple two-loop radiative neutrino mass model, and propose a combined explanations of all these apparently disjoint phenomena within this framework. Our proposed model consists of two scalar leptoquarks (LQs), a $SU(2)_L$ singlet $S_1\sim (\overline{3},1,1/3)$ and a $SU(2)_L$ triplet $S_3\sim (\overline{3},3,1/3)$ to accommodate $R_{D^{(\ast)}}$ and $R_{K^{(\ast)}}$ anomalies, respectively. The muon receives chirality-enhanced contribution towards its $g-2$ due to the presence of $S_1$ LQ that accounts for the observed deviation from the Standard Model prediction. Furthermore, we introduce a $SU(2)_L$ singlet scalar diquark $ω\sim (\overline{6},1,2/3)$, which is necessary to break lepton number and generate neutrino mass radiatively with the aid of $S_1$ and $S_3$ LQs. We perform a detailed phenomenological analysis of this set-up and demonstrate its viability by providing benchmark points where a fit to the neutrino oscillation data together with proper explanations of the muon AMM puzzle and flavor anomalies are accomplished while simultaneously meeting all other flavor violation and collider bounds.
