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arXiv 1602.05043hep-exhep-ph
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FCC-EE的物理

Physics at the FCC-ee

David d'Enterria

摘要:

概述了未来圆形对撞机(FCC-ee)上$e^+e^-$碰撞的物理程序。FCC-ee的目标是收集$e^+e^-$中$\sqrt{s}$ = 90、160、240和350 GeV的多ab $^{-1}$积分光度,每年产生10个$^{12}$ Z玻色子、10个$^{8}$ W $^+$ W $^-$对、10个$^{6}$希格斯玻色子和$4\cdot 10^{5}$顶夸克对。如此庞大的数据样本与$\cal{O}(100 \rm keV)$ c.m.能量的不确定性将使标准模型测量具有无与伦比的精度,并在迄今尚未探测的区域寻找新的物理学。FCC-ee将能够(i)间接发现与希格斯玻色子和电弱玻色子耦合的新粒子,最高可达$Λ\approx$ 7和100 TeV;(ii)在大型强子对撞机无法到达的区域进行环路级的竞争性超对称性测试;(iii)在直接对撞机搜索质量低于60 GeV的暗物质和无菌中微子方面发挥最大潜力。

英文摘要:

The physics program accessible in $e^+e^-$ collisions at the Future Circular Collider (FCC-ee) is summarized. The FCC-ee aims at collecting multi-ab$^{-1}$ integrated luminosities in $e^+e^-$ at $\sqrt{s}$ = 90, 160, 240, and 350 GeV, yielding 10$^{12}$ Z bosons, 10$^{8}$ W$^+$W$^-$ pairs, 10$^{6}$ Higgs bosons and $4\cdot 10^{5}$ top-quark pairs per year. Such huge data samples combined with a $\cal{O}(100 \rm keV)$ c.m. energy uncertainty will allow for Standard Model measurements with unparalleled precision and searches for new physics in regions not probed so far. The FCC-ee will be able to (i) indirectly discover new particles coupling to the Higgs and electroweak bosons up to scales $Λ\approx$ 7 and 100 TeV; (ii) perform competitive SUSY tests at the loop level in regions beyond the LHC reach; and (iii) achieve the best potential in direct collider searches for dark matter and sterile neutrinos with masses below 60 GeV.

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