arXivDaily arXiv每日学术速递 周一至周五更新
北美退伍军人节(Veterans Day),12 日无更新
arXiv 1208.4725hep-ph
收藏

反常规范玻色子耦合、125 GeV希格斯和单重标量暗物质

Anomalous gauge boson couplings, 125 GeV Higgs and singlet scalar dark matter

Namit Mahajan

摘要:

最近观察到的希格斯在125 GeV的共振显示出在双光子通道的增强率,而与标准模型的预期大致一致的$WW^*$和$ZZ^*$通道。这种增强是可能的,由于异常规范玻色子耦合。我们探索这一功能的标准模型,其中引入了一个单重标量的最小扩展也发挥了作用的暗物质候选人。有人认为,这样一个最小的情况下,没有新的带电粒子,可以在原则上导致所需的增强的双光子率通过诱导的异常规范耦合,并在同一时间提高电弱真空的稳定性。

英文摘要:

The recently observed Higgs like resonance at 125 GeV shows an enhanced rate in the diphoton channel, while being roughly consistent with the standard model expectation for the $WW^*$ and $ZZ^*$ channels. Such an enhancement is possible due to anomalous gauge boson couplings. We explore this feature within a minimal extension of the standard model, where a singlet scalar is introduced which also plays the role of the dark matter candidate. It is argued that such a minimal scenario, without new charged particles, can in principle lead to the desired enhancement of the diphoton rate via the induced anomalous gauge couplings, and at the same time improve the stability of the electroweak vacuum.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑