The Observable of Lambda Polarity Caused by Source Global Angular   Momentum Localizing in Peripheral Au-Au Collision at RHIC
  An observable to measure the polarity of lambda that caused by source global angular momentum in peripheral AU-AU collision at RHIC is proposed.This observable's capacity of measurement is tested by Monte Carlo method.And the main factors that influence the observable are also researched.This observable will give an effective proof of the formation of deconfined matter. 
X. Sun, Z. Yang