Division of High Energy Physics, Department of Physics, University of Helsinki and Helsinki Institute of Physics, FIN-00014, Helsinki, Finland.
Phys Rev Lett. 2010 Jun 18;104(24):241801. doi: 10.1103/PhysRevLett.104.241801. Epub 2010 Jun 17.
Using data from 2.9 fb(-1) of integrated luminosity collected with the CDF II detector at the Tevatron, we search for resonances decaying into a pair of on-shell gauge bosons, WW or WZ, where one W decays into an electron and a neutrino, and the other boson decays into two jets. We observed no statistically significant excess above the expected standard model background, and we set cross section limits at 95% confidence level on G* (Randall-Sundrum graviton), Z', and W' bosons. By comparing these limits to theoretical cross sections, mass exclusion regions for the three particles are derived. The mass exclusion regions for Z' and W' are further evaluated as a function of their gauge coupling strength.
利用 CDF II 探测器在 Tevatron 上收集的 2.9 fb(-1) 积分亮度数据，我们搜索了在一个 W 玻色子衰变成一个电子和一个中微子，而另一个玻色子衰变成两个喷注的情况下，一对末态规范玻色子 WW 或 WZ 的共振。我们没有观察到超出预期标准模型背景的显著统计过剩，并且我们在 95%置信水平下对 G*（Randall-Sundrum 引力子）、Z'和 W'玻色子设定了截面限制。通过将这些限制与理论截面进行比较，我们推导出了这三个粒子的质量排除区域。Z'和 W'的质量排除区域进一步作为其规范耦合强度的函数进行评估。
