arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 2008.13026hep-phhep-ex
收藏

用复合Higgs模型探测当前和未来强子对撞机的Top-Higgs区

Probing the Top-Higgs Sector with Composite Higgs Models at Present and Future Hadron Colliders

Carlos Bautista, Leonardo de Lima, Ricardo D. Matheus, Eduardo Pontón, Leônidas A. F. do Prado, Aurore Savoy-Navarro

摘要:

在最小复合Higgs模型中,基于陪集$SO(5)/SO(4)$,研究了强子对撞机上$t{\bar t}h$和$t{\bar t}hh$的产生.我们探讨了费米表象${\bf 5}$和${\bf 14}$。进行了详细的唯象分析,包括LHC的能量范围和高亮度升级,以及未来的100 TeV强子对撞机。共振和非共振生产被认为是,强调相互作用和互补的利益,这些渠道与对方和双希格斯生产。我们提供了一套具有代表性的点,详细的实验结果的修改的横截面以及共振质量和分支比。对于非共振生产,我们衡量汤川,希格斯三线性,并接触$t\bar{t}hh$顶点这些过程的相对重要性,并考虑的前景区分费米子表示彼此和标准模型。在生产的顶级合作伙伴,我们发现,三体衰变通道$W^+ W^- t$变得显着的参数空间中的某些区域具有简并的频谱,并进一步增强与能量。这既激发了更高能量的机器,也激发了超越为搜索这些共振而执行的当前分析的需要。

英文摘要:

We study the production of $t{\bar t}h$ and $t{\bar t}hh$ at hadron colliders, in the minimal Composite Higgs Models, based on the coset $SO(5)/SO(4)$. We explore the fermionic representations ${\bf 5}$ and ${\bf 14}$. A detailed phenomenological analysis is performed, covering the energy range of the LHC and its High Luminosity upgrade, as well as that of a future 100 TeV hadron collider. Both resonant and non-resonant production are considered, stressing the interplay and complementary interest of these channels with each other and double Higgs production. We provide sets of representative points with detailed experimental outcomes in terms of modification of the cross sections as well as resonance masses and branching ratios. For non-resonant production, we gauge the relative importance of Yukawa, Higgs trilinear, and contact $t\bar{t}hh$ vertices to these processes, and consider the prospect for distinguishing the fermion representations from each other and from the Standard Model. In the production of top partners, we find that the three-body decay channel $W^+ W^- t$ becomes significant in certain regions of parameter space having a degenerate spectrum, and is further enhanced with energy. This motivates both higher energy machines as well as the need to go beyond the current analysis performed for the searches for these resonances.

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。

↑