论文标题
单身三曲线的模型
A model for the Singlet-Triplet Leptoquarks
论文作者
论文摘要
$ b $ -Meson衰减的偏差以$ r_ {d^{（*）}}}}^{τ\ ell} $和$ r_ {k^{（*）}}^{μee} $可以通过两个scalar leptoquarks，一个单singlet $ s_1 $ s_1 $ s_ s_ 1 $ s_3 $ s的表现来解释。我们将共鸣理论视为对强烈相互作用的理论的有效描述，该理论将Leptoquarks和Higgs作为Nambu-Goldstone Bosons产生，其余的共振按顺序为$ 10-30 \ {\ rm rm tev} $。我们假定无政府主义的部分综合性对于SM费米子的味道。在这些假设下，我们研究是否有可能在$ b $ dep的情况下重现偏差，而不会与风味和电动界限冲突。我们发现$ r_ {d^{（*）}}^{τ\ ell} $之间的张力和一些风味可观察物，以违反$τ$衰减的风味和$δm_{b_s} $主导，需要调整订单$ 10-25 \％$。我们还计算出标量的潜力，表明具有质量$ {\ cal} o（2-3）\ {\ rm tev} $的Leptoquarks在模型中自然可以预期。我们简要讨论其他共鸣的现象学。
The deviations of $B$-meson decays measured in $R_{D^{(*)}}^{τ\ell}$ and $R_{K^{(*)}}^{μe}$ can be explained by the presence of two scalar leptoquarks, a singlet $S_1$ and a triplet $S_3$, mostly coupled to the third generation. We consider a theory of resonances, as an effective description of a strongly interacting theory, that generates the leptoquarks and the Higgs as Nambu-Goldstone bosons, with the rest of the resonances at a scale of order $10-30\ {\rm TeV}$. We assume anarchic partial compositeness for the flavor of the SM fermions. Under these hypothesis we study whether it is possible to reproduce the deviations in the $B$-decays without being in conflict with flavor and electroweak bounds. We find a tension between $R_{D^{(*)}}^{τ\ell}$ and some flavor observables, dominated by flavor violating $τ$ decays and $Δm_{B_s}$, that require a tuning of order $10-25\%$. We also compute the potential of the scalars showing that leptoquarks with masses ${\cal}O(2-3)\ {\rm TeV}$ can be naturally expected in the model. We discuss briefly the phenomenology of the other resonances.
