1) PhE and inclusive e DCAxy in HIJING by Kunsu
slide 2: large difference between reconstructed and inclusive PHE DCA in the tail (DCAxy>0.02 cm)
slide 3: Differences in PHE selection and reconstruction:
    Kunsu: use electrons from the same parent, pairMass<0.07 GeV/c2, pairDCA<0.02 cm
    Xiaozhi: use UL-LS electron pairs, pairMass<0.06 GeV/c2, pairDCA<0.6 cm 
slide 4: good agreement in conversion radius and DCAxy between data and new simulation
slide 5-14: difference is not due to pairMass
slide 15-16: no difference between different gamma sources
slide 17: simulation in progress, need ~32 days to produce 1M events

2) PHE and inclusive DcaXy in Hijing by xiaozhi 
slide 3-4: good agreement between reconstructed and inclusive PHE DCA for gamma conversions
slide 5-6: there is a 10 micro shift between reconstructed and inclusive PHE DCA for dalitz decay