论文标题

FCC-HH的新精确过程:Diphoton Leptonic WH频道

A New Precision Process at FCC-hh: the diphoton leptonic Wh channel

论文作者

Bishara, Fady, Englert, Philipp, Grojean, Christophe, Montull, Marc, Panico, Giuliano, Rossia, Alejo N.

论文摘要

FCC-HH的发光度和质量能量中心的增加将打开新的干净通道,在高能量下BSM贡献得到增强。在本文中,我们研究一个这样的渠道,即$ wh \ to \ellνγ$。我们估计对$ \ Mathcal {o} _ {φQ}^{(3)} $,$ \ Mathcal {O} _ {φ{φ{w}} $和$ \ Mathcal {O} _ {φ{φ{φ\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ smeffter的敏感性。我们发现,该通道将在$ \ mathcal {o} _ {φq}^{(3)} $上设置界限,与完全松弛的$ wz $生产具有竞争力。我们还发现,可以利用$ p_t^h $中的双重差分分布,并且可以利用Leptonic Azimuthal角度来增强对$ \ Mathcal {O} _ {φ\ didetilde {w}} $的敏感性。 However, the bounds on $\mathcal{O}_{φ{W}}$ and $\mathcal{O}_{φ\widetilde {W}}$ we obtain in our analysis, though complementary and more direct, are not competitive with those coming from other measurements such as EDMs and inclusive Higgs measurements.

The increase in luminosity and center of mass energy at the FCC-hh will open up new clean channels where BSM contributions are enhanced at high energy. In this paper we study one such channel, $Wh \to \ellνγγ$. We estimate the sensitivity to the $\mathcal{O}_{φq}^{(3)}$, $\mathcal{O}_{φ{W}}$, and $\mathcal{O}_{φ\widetilde {W}}$ SMEFT operators. We find that this channel will be competitive with fully leptonic $WZ$ production in setting bounds on $\mathcal{O}_{φq}^{(3)}$. We also find that the double differential distribution in the $p_T^h$ and the leptonic azimuthal angle can be exploited to enhance the sensitivity to $\mathcal{O}_{φ\widetilde {W}}$. However, the bounds on $\mathcal{O}_{φ{W}}$ and $\mathcal{O}_{φ\widetilde {W}}$ we obtain in our analysis, though complementary and more direct, are not competitive with those coming from other measurements such as EDMs and inclusive Higgs measurements.

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