ORFEOv6r3

10. GeV muons

This data MC comparison was made with the last version of ORFEO.Here a new version of the smearing tool is implemented, this is based on the position smearing in the 3 directions: X,Y,Z of the 2 end points of the microtrack. In such a way the basetrack smearing of the slopes is obtained for free. In addiction, with this technique, the smearing ellipse in the Tx:Ty plane has main axes in the longitudinal and transversal direction, as seen in the data.

Efficienze dal brick vuoto

esposto ai cosmiciEfficienza ufficiali

Eff lead MC pions Eff no lead MC pions

Electrons 6 GeV

• The events were generated with OpRoot

• The smearing parameters are: Sx=0.4 micron, Sy=0.25 micron, Sz=2.5 micron. (these value were obtained with a tooning on the data)

TRIGGER dataMC

Slopes resolution(Tmicro-Tbase)

MC data

eCHI2P vs PHThis is the results of the micro slopes resolution

simulation (eCHI2P) and of the micro pulse height parametrization (bt PH)

DatiMC

bg rejected

Bt angle resolutionBin(i-1)=T(i)-T(1), i>1

MC Dati

Base Pulse and eCHI2P DatiMC

Number of segments followed without propagation (strongly related to micro track efficiencies)

Dati

MC without Efficiencies micro track

rejection

Eff. As measured inEmpty brick

(only cosmics exposition)

MC+eff.

MC: no correlation betweenMicro tracks momentum and pulse height by construction

Data

Pions 4 GeV

• The events were generated with OpRoot

• The smearing parameters are: Sx=0.25 micron, Sy=0.25 micron, Sz=2.5 micron. (these value are the same used for all the “official” productions)

TRIGGER dataMC

Slopes resolution(Tmicro-Tbase)

MC data

eCHI2P vs PHThis is the results of the micro slopes resolution

simulation (eCHI2P) and of the micro pulse height parametrization (bt PH)

DatiMC

bg rejected

Bt angle resolutionBin(i-1)=T(i)-T(1), i>1

MC Dati

Base Pulse and eCHI2P DatiMC

Number of segments followed without propagation (strongly related to micro track efficiencies)

Dati

MC+eff.Assuming eff.=84.%

(84.% at theta<0.1mrad measured data)

MC: no correlation betweenMicro tracks momentum and pulse height by construction

Data

Transversal and longitudinal resolution for simulated 10.GeV pions at 0.7 mrad