1 /**************************************************************************
2 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
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8 * documentation strictly for non-commercial purposes is hereby granted *
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11 * appear in the supporting documentation. The authors make no claims *
12 * about the suitability of this software for any purpose. It is *
13 * provided "as is" without express or implied warranty. *
14 **************************************************************************/
18 // Class for fast simulation of the ALICE Muon Spectrometer
19 // Tracking Efficiency.
20 // The efficiency depends on trasverse momentum pt, polar angle theta and azimuthal angle phi.
22 // Author: Alessandro de Falco
23 // alessandro.de.falco@ca.infn.it
28 #include "AliFastMuonTrackingEff.h"
29 #include "AliMUONFastTracking.h"
31 ClassImp(AliFastMuonTrackingEff)
34 AliFastMuonTrackingEff::AliFastMuonTrackingEff() :
35 AliFastResponse("Efficiency", "Muon Tracking Efficiency"),
44 AliFastMuonTrackingEff::AliFastMuonTrackingEff(const AliFastMuonTrackingEff& eff)
45 :AliFastResponse(eff),
54 void AliFastMuonTrackingEff::Init()
58 fFastTracking = AliMUONFastTracking::Instance();
59 fFastTracking->Init(fBackground);
64 Float_t AliFastMuonTrackingEff::Evaluate(Float_t /*charge*/, Float_t pt, Float_t theta, Float_t phi)
67 // Evaluate the efficience for muon with 3-vector (pt, theta, phi)
68 Float_t p = pt / TMath::Sin(theta*TMath::Pi()/180.);
69 Float_t eff = fFastTracking->Efficiency(p, theta, phi, Int_t(fCharge));
74 AliFastMuonTrackingEff& AliFastMuonTrackingEff::operator=(const AliFastMuonTrackingEff& rhs)
76 // Assignment operator