Identification of Colour Reconnection using Factorial Correlator

• 来源期刊: 中国物理快报（英文版）
• 年，卷（期）: 2000,（5）
• 所属期刊栏目: The Physics of elementary particles and fieldas
• 页码范围: 338-339
• 页数: 2页
• 语种: 英文

摘要

A new signal is proposed for the colour reconnection in the hadronic decay of W+ W- in e+e- collisions. Using Pythia Monte Carlo it is shown that factorial correlators for W+ and W- without colour reconnection are almost identical to unity, while those for the cases with colour reconnection fall down approximately linearly in the log log plot. This signal, being based on the factorial correlator, is more sensitive than the ones using only averaged quantities.