论文标题
Triboson最终州的轻夸克Yukawas
Light quark Yukawas in triboson final states
论文作者
论文摘要
最近首次观察到了三重重型矢量玻色子生产，$ p p \ to vvv $ $（v = w，z）$。我们提出，此过程的精确度测量为第一代Quark Yukawa耦合提供了出色的探测。在此过程中，在此过程中，修改了夸克与脱壳希格斯的相互作用导致党派横截面与能量的快速增长，这表现在最终状态leptons和Quarks的增强$ P_T $分布中。我们量化了这种效果，并估计对上，向下和奇怪的Yukawas的当前和未来2 $σ$敏感性。特别是，我们发现HL-LHC可以达到$ \ MATHCAL {O}（400）$对Yukawa相对于标准模型值的敏感性，从而提高了此过程中的当前灵敏度$ 10 $，并且可以将其进一步提高到$ \ \ \ \ \ \ \ \ natercal {O}（O}（30）$在FCC-HH的$。这与全球拟合和第一代Yukawas的其他壳探针的限制具有竞争力和补充。 HL-LHC的Triboson灵敏度对应于探测尺寸-6 SMEFT操作员被$ \ MATHCAL {O}（1）$ TEV比例抑制，与其他LHC Higgs探针相似。
Triple heavy vector boson production, $p p \to VVV$ $(V = W, Z)$, has recently been observed for the first time. We propose that precision measurements of this process provide an excellent probe of the first generation light quark Yukawa couplings. Modified quark interactions with the off-shell Higgs in this process lead to a rapid growth of the partonic cross sections with energy, which manifests in an enhanced $p_T$ distribution of the final state leptons and quarks. We quantify this effect and estimate the present and future 2$σ$ sensitivity to the up, down, and strange Yukawas. In particular, we find that HL-LHC can reach $\mathcal{O}(400)$ sensitivity to the down Yukawa relative to the Standard Model value, improving the current sensitivity in this process by a factor of $10$, and which can be further improved to $\mathcal{O}(30)$ at FCC-hh. This is competitive with and complementary to constraints from global fits and other on-shell probes of the first generation Yukawas. The triboson sensitivity at HL-LHC corresponds to probing dimension-6 SMEFT operators suppressed by an $\mathcal{O}(1)$ TeV scale, similarly to other LHC Higgs probes.
