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6255180c | 1 | /************************************************************************** |
2 | * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * | |
3 | * * | |
4 | * Author: The ALICE Off-line Project. * | |
5 | * Contributors are mentioned in the code where appropriate. * | |
6 | * * | |
7 | * Permission to use, copy, modify and distribute this software and its * | |
8 | * documentation strictly for non-commercial purposes is hereby granted * | |
9 | * without fee, provided that the above copyright notice appears in all * | |
10 | * copies and that both the copyright notice and this permission notice * | |
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 | **************************************************************************/ | |
15 | ||
803d1ab0 | 16 | /* $Id$ */ |
a42548b0 | 17 | // |
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. | |
21 | // | |
22 | // Author: Alessandro de Falco | |
23 | // alessandro.de.falco@ca.infn.it | |
24 | // | |
6255180c | 25 | #include "AliFastMuonTrackingEff.h" |
26 | #include "AliMUONFastTracking.h" | |
27 | ||
28 | ClassImp(AliFastMuonTrackingEff) | |
29 | ||
30 | ||
31 | AliFastMuonTrackingEff::AliFastMuonTrackingEff() : | |
32 | AliFastResponse("Efficiency", "Muon Tracking Efficiency") | |
33 | { | |
a42548b0 | 34 | // |
35 | // Constructor | |
6255180c | 36 | SetBackground(); |
37 | } | |
38 | ||
a42548b0 | 39 | AliFastMuonTrackingEff::AliFastMuonTrackingEff(const AliFastMuonTrackingEff& eff) |
40 | :AliFastResponse(eff) | |
41 | { | |
42 | // Copy constructor | |
43 | eff.Copy(*this); | |
44 | } | |
45 | ||
6255180c | 46 | void AliFastMuonTrackingEff::Init() |
47 | { | |
a42548b0 | 48 | // |
49 | // Initialization | |
6255180c | 50 | fFastTracking = AliMUONFastTracking::Instance(); |
51 | fFastTracking->Init(fBackground); | |
52 | } | |
53 | ||
54 | ||
55 | ||
20432218 | 56 | Float_t AliFastMuonTrackingEff::Evaluate(Float_t /*charge*/, Float_t pt, Float_t theta, Float_t phi) |
6255180c | 57 | { |
a42548b0 | 58 | // |
59 | // Evaluate the efficience for muon with 3-vector (pt, theta, phi) | |
6255180c | 60 | Float_t p = pt / TMath::Sin(theta*TMath::Pi()/180.); |
61 | Float_t eff = fFastTracking->Efficiency(p, theta, phi, Int_t(fCharge)); | |
62 | return eff; | |
63 | } | |
a42548b0 | 64 | |
20432218 | 65 | |
a42548b0 | 66 | AliFastMuonTrackingEff& AliFastMuonTrackingEff::operator=(const AliFastMuonTrackingEff& rhs) |
67 | { | |
68 | // Assignment operator | |
69 | rhs.Copy(*this); | |
70 | return *this; | |
71 | } | |
72 |