Joint Institute for Nuclear Research, Dubna, Russia.
Phys Rev Lett. 2009 Oct 2;103(14):141801. doi: 10.1103/PhysRevLett.103.141801. Epub 2009 Oct 1.
We present a measurement of the W boson mass in W-->e(nu) decays using 1 fb-1 of data collected with the D0 detector during Run II of the Fermilab Tevatron collider. With a sample of 499830 W-->e(nu) candidate events, we measure M(W)=80.401+/-0.043 GeV. This is the most precise measurement from a single experiment.
我们展示了使用费米实验室 Tevatron 对撞机二期运行期间 D0 探测器采集的 1 fb-1 数据，对 W 玻色子在 W→e(ν)衰变中的质量的测量结果。通过对 499830 个 W→e(ν)候选事例的分析，我们测量到 M(W)=80.401±0.043 GeV。这是单次实验中最精确的测量结果。
