Away-Side veto for W-algo : ver 2

Away-Side veto for W-algo

Old Away-Side veto:

  • Sum pT from TPC primary tracks, BEMC tower and EEMC tower in the region opposite the e+/e- within the deltaPhi window +/- 0.7.
  • Veto event if sum pT > 8 GeV.

Figure 1: Away-side total ET vs 2x2 Cluster ET

 

New Away-Side veto:

Details of the new algorithm are given in the presentation attached below.

Figure 2: New "Away-Cone Sum" ET vs 2x2 Cluster ET

 

 

Figure 3: 2x2 Cluster ET Old Algo (Black) and New Away-Side veto (Red)