Home » Groups » STAR Protected

Glimpse of D* in Preview2 data

Updated on Tue, 2015-04-07 11:35. Originally created by malong on 2015-04-06 17:12.

Run ~40M events from Run14 preview2 production


General cuts applied for daughter D0

dca_kaon>0.008
dca_pion>0.008
dca12<0.005
Costhetastar<0.8
Cos(theta)>0.99
1.82<M(D0)<1.91
 
SoftPion
 
-3<nsigmaPion<3
gDca<2.0 or gDca<1.0 or gDca<0.5
Nhitfit>20&pT>0.2
Primary momentum used

See attachment for D0 cuts determine.

Cut SoftPion Dca < 2.0 cm



Cut SoftPion Dca < 1.0 cm

Cut SoftPion Dca < 0.5 cm

 
 

Significance

dca_softpion < 2.0 : 4.0
dca_softpion < 1.0 : 1.9
dca_softpion < 0.5 : 1.9

 
Groups: