1 #ifndef ALICOLLISIONGEOMETRY_H
2 #define ALICOLLISIONGEOMETRY_H
3 /* Copyright(c) 198-1999, ALICE Experiment at CERN, All rights reserved. *
4 * See cxx source for full Copyright notice */
10 class AliCollisionGeometry
13 AliCollisionGeometry();
14 virtual ~AliCollisionGeometry(){;}
16 Float_t ImpactParameter() {return fImpactParameter;}
17 Float_t ReactionPlaneAngle() {return fReactionPlaneAngle;}
18 Int_t HardScatters() {return fNHardScatters;}
19 Int_t ProjectileParticipants() {return fNProjectileParticipants;}
20 Int_t TargetParticipants() {return fNTargetParticipants;}
21 Int_t ProjSpectatorsn() {return fProjectileSpecn;}
22 Int_t ProjSpectatorsp() {return fProjectileSpecp;}
23 Int_t TargSpectatorsn() {return fTargetSpecn; }
24 Int_t TargSpectatorsp() {return fTargetSpecp; }
25 Int_t NN() {return fNNColl;}
26 Int_t NNw() {return fNNwColl;}
27 Int_t NwN() {return fNwNColl;}
28 Int_t NwNw() {return fNwNwColl;}
30 void SetImpactParameter(Float_t b) {fImpactParameter=b;}
31 void SetReactionPlaneAngle(Float_t phi) {fReactionPlaneAngle = phi;}
32 void SetHardScatters(Int_t n) {fNHardScatters=n;}
33 void SetParticipants(Int_t np, Int_t nt)
34 {fNProjectileParticipants=np, fNTargetParticipants=nt;}
35 void SetCollisions(Int_t nn, Int_t nnw, Int_t nwn, Int_t nwnw)
36 {fNNColl=nn, fNNwColl=nnw, fNwNColl=nwn, fNwNwColl=nwnw;}
37 void SetSpectators(Int_t nprojspecn, Int_t nprojspecp, Int_t ntargspecn, Int_t ntargspecp)
38 {fProjectileSpecn=nprojspecn, fProjectileSpecp=nprojspecp,
39 fTargetSpecn=ntargspecn, fTargetSpecp=ntargspecp;}
41 Int_t fNHardScatters; // Number of hard scatterings
42 Int_t fNProjectileParticipants; // Number of projectiles participants
43 Int_t fNTargetParticipants; // Number of target participants
44 Int_t fNNColl; // Number of N-N collisions
45 Int_t fNNwColl; // Number of N-Nwounded collisions
46 Int_t fNwNColl; // Number of Nwounded-N collisons
47 Int_t fNwNwColl; // Number of Nwounded-Nwounded collisions
48 Int_t fProjectileSpecn; // Num. of spectator neutrons from projectile nucleus
49 Int_t fProjectileSpecp; // Num. of spectator protons from projectile nucleus
50 Int_t fTargetSpecn; // Num. of spectator neutrons from target nucleus
51 Int_t fTargetSpecp; // Num. of spectator protons from target nucleus
52 Float_t fImpactParameter; // Impact Parameter
53 Float_t fReactionPlaneAngle; // Reaction plane angle
55 ClassDef(AliCollisionGeometry,3) // Collision Geometry