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Adding AliRsnDaughterCut in the RESONANCES directory
[u/mrichter/AliRoot.git] / PWG2 / RESONANCES / AliRsnDaughterCut.cxx
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  
16 //-------------------------------------------------------------------------
17 //                      Class AliRsnDaughterCut
18 //  
19 //           Implementation of track cuts for analysis.
20 // 
21 // author: A. Pulvirenti             (email: alberto.pulvirenti@ct.infn.it)
22 //-------------------------------------------------------------------------
23
24 #include <Riostream.h>
25
26 #include "AliRsnDaughter.h"
27 #include "AliRsnDaughterCut.h"
28
29 ClassImp(AliRsnDaughterCut)
30
31 //--------------------------------------------------------------------------------------------------------
32 Bool_t AliRsnDaughterCut::Pass(AliRsnDaughter* /*track1*/, AliRsnDaughter* /*track2*/)
33 // 
34 // Virtual method for cut passing.
35 // This function must be overridden and return kTRUE when cut is passed.
36 //
37
38         TObject::Error("Pass", "This method must be overridden!");
39         return kFALSE;
40 }
41 //--------------------------------------------------------------------------------------------------------
42 Bool_t AliRsnDaughterCutPtSingle::Pass(AliRsnDaughter *track1, AliRsnDaughter* /*track2*/)
43 // 
44 // Cut on single track momentum.
45 //
46
47         if (!track1) return kFALSE;
48         if (track1->GetPt() < fPtMin) return kFALSE;
49         if (track1->GetPt() > fPtMax) return kFALSE;
50         
51         return kTRUE;
52 }
53 //--------------------------------------------------------------------------------------------------------
54 Bool_t AliRsnDaughterCutPtPair::Pass(AliRsnDaughter *track1, AliRsnDaughter *track2)
55 // 
56 // Cut on single track momentum.
57 //
58
59         if (!track1 || !track2) return kFALSE;
60         
61         AliRsnDaughter sum = (*track1) + (*track2);
62         
63         if (sum.GetPt() < fPtMin) return kFALSE;
64         if (sum.GetPt() > fPtMax) return kFALSE;
65         
66         return kTRUE;
67 }