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arXiv 2104.00474hep-ph
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强子-强子相互作用中反常$WWγγ$耦合在FCC-hh上的未来预测

Future projections on the anomalous $WWγγ$ couplings in hadron-hadron interactions at the FCC-hh

A. Gutiérrez-Rodríguez, V. Ari, E. Gurkanli, M. Köksal, M. A. Hernández-Ruíz

摘要:

本文用八维有效场论方法研究了在未来圆形对撞机-强子对撞机(FCC-hh)上由$pp \to Wγγ$过程引起的反常四次$WWγγ$耦合。该过程对$WWγγ$顶点敏感,并且可以通过测量$Wγγ$的产生来预测未来对异常$f_ {M,i}/Λ^4$和$ f_ {T,j}/Λ^4$耦合的预测。我们说明了物理的机会和达到的FCC-hh操作的${\cal L}=1, 5, 10, 30$ ${\rm ab}^{-1}$质子-质子碰撞的质量中心的能量的$\sqrt{s}=100$ TeV和系统的不确定性的$δ_{sys}=0\%, 3\%, 5\%, 10\%$的高集成光度的情况下。在$95\%$ C.L.的异常$f_ {M,i}/Λ^4$和$ f_ {T,j}/Λ^4$耦合的信号和灵敏度约束的生产截面。通过$W$玻色子的轻子和强子衰变模式来识别。FCC-hh对这些异常耦合的灵敏度预计可能达到${\cal O}(10^{-4}-10^1)$的数量级。这些灵敏度的观点表明,$pp \to Wγγ$通道在FCC-hh有一个更大的潜力,以寻找异常的四次$WWγγ$耦合和寻找新的物理比目前的对撞机。

英文摘要:

We carry out a study in the approach of a dimension-8 effective field theory on the anomalous quartic $WWγγ$ couplings that arise from the process $pp \to Wγγ$ at the Future Circular Collider-hadron hadron (FCC-hh). The process is sensitive to the $WWγγ$ vertex, and future projections on the anomalous $f_ {M,i}/Λ^4$ and $ f_ {T,j}/Λ^4$ couplings can be put by measurements of $Wγγ$ production. We illustrate the physics opportunities and reach of the FCC-hh operating for a high integrated luminosity scenario of ${\cal L}=1, 5, 10, 30$ ${\rm ab}^{-1}$ of proton-proton collisions at a center-of-mass energy of $\sqrt{s}=100$ TeV and systematic uncertainties of $δ_{sys}=0\%, 3\%, 5\%, 10\%$. Production cross-sections of the signal and the sensitivity constraints on the anomalous $f_ {M,i}/Λ^4$ and $ f_ {T,j}/Λ^4$ couplings at $95\%$ C.L. are identified through the leptonic and hadronic decay modes of the $W$-boson. The FCC-hh sensitivity on these anomalous couplings is expected might reach up to the order of magnitude ${\cal O}(10^{-4}-10^1)$. These sensitivity perspectives indicate that the $pp \to Wγγ$ channel at the FCC-hh has a greater potential to search for the anomalous quartic $WWγγ$ couplings and to search for new physics than present colliders.

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。

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