论文标题
4321的黑暗面
The Dark Side of 4321
论文作者
论文摘要
暗物质（DM）的证据是超出标准模型以外的物理学的最强观察论点之一。尽管期望有期望，但迄今为止，在对撞机搜索方面仍缺乏类似的证据，除了$ b $ - 物理学的差异外，在同质数据集中，一组连贯的持续偏差，该数据集由$ b \ to C $ to C $和$ b \到S $ Semi-Leptonic Trustrones组成。我们探讨了DM和$ b $差异是否具有共同起源的问题。我们在所谓的4321量规模型的背景下这样做，这是一种紫外线完整且可计算的设置，产生了$ u_1 $ leptoquark，这是迄今为止最成功的单个调解人，能够解释$ b $ $ $ $ $ z^\ prime $。在4321的$ su（4）$下，在此设置中添加一个“最小” DM费米子多重多重，由$ {\ bf 4} $组成，我们在自然一致的自然一致性上，与Relic密度观察和最严重的直接检测范围以及最严重的直接检测范围，从$ B $物理学中选择的参数是一种受到$ b $的范围的范围。 DM候选者是质量在WIMP范围内的粒子，冷冻输出动力学包括共同宣传器（$ {\ bf 4} $多重组的“其余”），而DM扇区中最重要的仪表中介是$ z^\ prime $。
The evidence of Dark Matter (DM) is one of the strongest observational arguments in favour of physics beyond the Standard Model. Despite expectations, a similar evidence has been lacking so far in collider searches, with the possible exception of $B$-physics discrepancies, a coherent set of persistent deviations in a homogeneous dataset consisting of $b \to c$ and $b \to s$ semi-leptonic transitions. We explore the question whether DM and the $B$ discrepancies may have a common origin. We do so in the context of the so-called 4321 gauge model, a UV-complete and calculable setup that yields a $U_1$ leptoquark, the by far most successful single mediator able to explain the $B$ anomalies, along with other new gauge bosons, including a $Z^\prime$. Adding to this setup a 'minimal' DM fermionic multiplet, consisting of a ${\bf 4}$ under the 4321's $SU(4)$, we find the resulting model in natural agreement with the relic-density observation and with the most severe direct-detection bounds, in the sense that the parameter space selected by $B$ physics is also the one favoured by DM phenomenology. The DM candidate is a particle with a mass in the WIMP range, freeze-out dynamics includes a co-annihilator (the 'rest' of the ${\bf 4}$ multiplet), and the most important gauge mediator in the DM sector is the $Z^\prime$.
