论文标题

三胞胎量规玻色子,带有超重

A triplet gauge boson with hypercharge one

论文作者

Fonseca, Renato M.

论文摘要

vector -boson $ w_ {1}^μ$带量子数$ \ left(\ boldsymbol {3},1 \ right)$下的$ su \ left(2 \ right)_ {l} \ times u(times u(times) $ W_ {1}^{μ*}HD_μH$。已知这种相互作用会影响$ t $参数,因此,它可能可以解释W-Boson质量的最近CDF测量。 矢量通常是这种情况,用$ w_ {1} $ gauge boson构建可行的模型是非平凡的。在这项工作中,我将描述包含此字段的最小设置的两个变体。它们基于扩展的$(5)\ times su \ left(2 \右)\ times u(1)$ electroweak group。尽管如此,我仍会表明,诸如$ w_ {1}^{μ*} h \partial_μh$之类的相互作用在Yang-Mills理论中永远不会生成。 $ w_ {1} $,$ h $和另一个higgs doublet $ h^{\ prime} $之间的耦合是可能的。 最后,我将提供一个明确的配方,用于以标准模型组的任意表示形式建造具有仪表玻色子的可行模型;根据量子数的不同,它们可能将其与一对成对的标准模型费米子或标准模型费米子和外来模型。

A vector boson $W_{1}^μ$ with the quantum numbers $\left(\boldsymbol{3},1\right)$ under $SU\left(2\right)_{L}\times U(1)_{Y}$ could in principle couple with the Higgs field via the renormalizable term $W_{1}^{μ*}HD_μH$. This interaction is known to affect the $T$ parameter and, in so doing, it could potentially explain the recent CDF measurement of the W-boson mass. As it is often the case with vectors, building a viable model with a $W_{1}$ gauge boson is non-trivial. In this work I will describe two variations of a minimal setup containing this field; they are based on an extended $SO(5)\times SU\left(2\right)\times U(1)$ electroweak group. I will nevertheless show that interactions such as $W_{1}^{μ*}H\partial_μH$ are never generated in a Yang-Mills theory. A coupling between $W_{1}$, $H$ and another Higgs doublet $H^{\prime}$ is possible though. Finally, I will provide an explicit recipe for the construction of viable models with gauge bosons in arbitrary representations of the Standard Model group; depending on the quantum numbers, they may couple to pairs of Standard Model fermions, or to a Standard Model fermion and an exotic one.

扫码加入交流群

加入微信交流群

微信交流群二维码

扫码加入学术交流群,获取更多资源