论文标题

LHC(及以后)的彩色八位字的Gluon-Photon特征

Gluon-Photon Signatures for color octet at the LHC (and beyond)

论文作者

Cacciapaglia, G., Deandrea, A., Flacke, T., Iyer, A. M.

论文摘要

我们使用有效的Lagrangian描述其强烈和电磁相互作用,考虑了颜色的八位标量子粒子及其在通道Gluon $γ$中的异国衰变。这种状态存在于标准模型的许多扩展中,尤其是在具有最高部分组合性的复合希格斯模型中,其中与光子的耦合通过wess-zumino-witter术语出现。我们发现,具有一个或两个光子的最终状态允许在LHC上更好地触及,即使对于小的分支比率也是如此。通过使用所有最终州,可以在HL-LHC探测高达$ 1.2 $ TEV的大众。最后,我们估计了Hadronic FCC的敏感性。

We consider a color octet scalar particle and its exotic decay in the channel gluon-$γ$ using an effective Lagrangian description for its strong and electromagnetic interactions. Such a state is present in many extensions of the Standard Model, and in particular in composite Higgs models with top partial compositeness, where couplings to photons arise via the Wess-Zumino-Witten term. We find that final states with one or two photons allow for a better reach at the LHC, even for small branching ratios. Masses up to $1.2$ TeV can be probed at the HL-LHC by use of all final states. Finally, we estimate the sensitivity of the hadronic FCC.

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