标题： 电子在半轻子B衰变中的能谱矩 at Belle 显示英文标题

标题： Moments of the Electron Energy Spectrum in Semileptonic B Decays at Belle

摘要： 我们报告了在140 fb^-1数据样本中B介子半轻子衰变的总电子能量谱的测量结果，该数据样本是在KEKB非对称能e^+ e^-对撞机上使用Belle探测器在Upsilon(4S)共振附近收集的。我们确定了电子能量阈值在0.6到1.5 GeV之间的谱的第一和第二矩。 显示英文摘要

摘要： We report a measurement of the inclusive electron energy spectrum for semileptonic decays of B mesons in a 140 fb^-1 data sample collected near the Upsilon(4S) resonance, with the Belle detector at the KEKB asymmetric energy e^+ e^- collider. We determine the first and second moments of the spectrum for threshold values of the electron energy between 0.6 and 1.5 GeV.