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c9a8628a | 1 | #ifndef ALISLOWNUCLEONMODELEXP_H |
2 | #define ALISLOWNUCLEONMODELEXP_H | |
3 | /* Copyright(c) 198-1999, ALICE Experiment at CERN, All rights reserved. * | |
4 | * See cxx source for full Copyright notice */ | |
5 | ||
6 | /* $Id$ */ | |
7 | ||
ac3faee4 | 8 | // |
9 | // Experimental data inspired Gray Particle Model for p-Pb collisions | |
10 | // Fluctuations are calculated from a binomial distribution. | |
11 | // Author: A.Morsch | |
12 | // | |
13 | ||
c9a8628a | 14 | #include "AliSlowNucleonModel.h" |
15 | ||
16 | class AliCollisionGeometry; | |
17 | ||
18 | class AliSlowNucleonModelExp : public AliSlowNucleonModel | |
19 | { | |
20 | public: | |
21 | AliSlowNucleonModelExp(); | |
22 | virtual ~AliSlowNucleonModelExp(){;} | |
23 | virtual void GetNumberOfSlowNucleons(AliCollisionGeometry* geo, | |
ac3faee4 | 24 | Int_t& ngp, Int_t& ngn, Int_t& nbp, Int_t& nbn) const; |
58776b75 | 25 | virtual void GetNumberOfSlowNucleons2(AliCollisionGeometry* geo, |
26 | Int_t& ngp, Int_t& ngn, Int_t& nbp, Int_t& nbn) const; | |
aa3eb8eb | 27 | // 1st model |
c9a8628a | 28 | virtual void SetParameters(Float_t alpha1, Float_t alpha2); |
230d85c6 | 29 | virtual void SetSaturation(Bool_t saturation) {fApplySaturation = saturation;} |
1ffc7bfa | 30 | virtual void SetSaturationParams(Int_t ngray=15, Int_t nblack=28) |
230d85c6 | 31 | {fnGraySaturation=ngray; fnBlackSaturation=nblack;} |
aa3eb8eb | 32 | // 2nd model |
33 | virtual void SetLCPparam(Float_t al) {fLCPparam=al;} | |
34 | virtual void SetNslowParams(Float_t a, Float_t b, Float_t c) | |
35 | {fSlownparam[0]=a; fSlownparam[1]=b; fSlownparam[2]=c;} | |
c9a8628a | 36 | |
37 | protected: | |
38 | Float_t fP; // Number of protons in the target | |
39 | Float_t fN; // Number of neutrons in the target | |
40 | Float_t fAlphaGray; // Proportionality between gray particles and number of collisions | |
41 | Float_t fAlphaBlack; // Proportionality between black particles and number of collisions | |
230d85c6 | 42 | Bool_t fApplySaturation; // If true apply satoration to N_black vs. N_gray |
43 | Int_t fnGraySaturation; // N_gray value for N_black saturation | |
44 | Int_t fnBlackSaturation; // N_black saturation value | |
aa3eb8eb | 45 | // |
46 | // Adding parameters for 2nd model that can be tuned during config | |
47 | Float_t fLCPparam; // parameter to calculate LCP from <Nslow p> | |
48 | Float_t fSlownparam[3]; // parameters to calculate <Nslow n> from LCP | |
c9a8628a | 49 | |
aa3eb8eb | 50 | |
51 | ClassDef(AliSlowNucleonModelExp,3) // Gray Particle Model (Experiment inspired) | |
c9a8628a | 52 | }; |
53 | #endif | |
54 | ||
55 | ||
56 | ||
57 | ||
58 | ||
59 | ||
230d85c6 | 60 |