“Tips” from the expert (II): Going lower in pT

• Use the conversion measurement ! (e+- ID runs out @ 5 Gev/c)
• Energy Resolution has opposite behavior:
• At low pT < ~3 GeV systematics smaller. Total systematics 13% (STAR)
• Factor of 102-4 loss in statistics won’t hurt in Run-4.
• In the region of overlap with EMCal measurements, reduce  energy scale uncertainty by “combining” rate normalization.
• Extend p+p -->  measurement to low pT (need baseline in “interesting” region !)
• Result: Constrain thermal rates below 4 GeV and confirm/deny jet-medium enhancement