Joint Institute for Nuclear Research, Dubna, Russia.
Phys Rev Lett. 2010 Nov 19;105(21):211803. doi: 10.1103/PhysRevLett.105.211803.
We report results of a search for particles with anomalously high ionization in events with a high transverse energy jet and large missing transverse energy in 2.4 fb⁻¹ of integrated luminosity collected by the D0 experiment at the Fermilab Tevatron pp collider. Production of such particles (quirks) is expected in scenarios with extra QCD-like SU(N) sectors, and this study is the first dedicated search for such signatures. We find no evidence of a signal and set a lower mass limit of 107, 119, and 133 GeV for the mass of a charged quirk with strong dynamics scale Λ in the range from 10 keV to 1 MeV and N=2, 3, and 5, respectively.
我们报告了在费米实验室 Tevatron pp 对撞机上的 D0 实验中，在 2.4 fb⁻¹ 的积分亮度收集的具有高横向能量喷注和大横向能量缺失的事件中，寻找具有异常高电离的粒子的结果。在具有额外 QCD 类似 SU(N) 部分的场景中，预计会产生这种粒子（奇异粒子），而这项研究是首次专门针对这种特征进行的搜索。我们没有发现信号的证据，并为具有强动力学标度 Λ 的带电荷奇异粒子的质量设定了下限，范围从 10 keV 到 1 MeV，对于 N=2、3 和 5，分别为 107、119 和 133 GeV。
