Joint Institute for Nuclear Research, Dubna, Russia.
Phys Rev Lett. 2011 Jul 1;107(1):011804. doi: 10.1103/PhysRevLett.107.011804. Epub 2011 Jun 30.
We present a study of the dijet invariant mass spectrum in events with two jets produced in association with a W boson in data corresponding to an integrated luminosity of 4.3 fb(-1) collected with the D0 detector at √s = 1.96 TeV. We find no evidence for anomalous resonant dijet production and derive upper limits on the production cross section of an anomalous dijet resonance recently reported by the CDF Collaboration, investigating the range of dijet invariant mass from 110 to 170 GeV/c(2). The probability of the D0 data being consistent with the presence of a dijet resonance with 4 pb production cross section at 145 GeV/c(2) is 8×10(-6).
我们展示了在 D0 探测器于 √s = 1.96 TeV 采集的对应于 4.3 fb(-1) 积分亮度的数据中，与 W 玻色子相关联产生的两个喷注事例的喷注不变质量谱的研究结果。我们没有发现反常共振双喷注产生的证据，并对 CDF 合作组最近报道的反常双喷注共振产生截面设定了上限，在 110 到 170 GeV/c(2) 的喷注不变质量范围内进行研究。D0 数据与具有 4 pb 产生截面的 145 GeV/c(2) 双喷注共振一致的概率为 8×10(-6)。
