/* $Id$ */
+//__________________________________________________________________
+////////////////////////////////////////////////////////////////////
+//
+// class AliMevSimConfig
+//
+// Class containing configuation inforamtion for MeVSim generator
+// --------------------------------------------
+// --------------------------------------------
+// --------------------------------------------
+// author: radomski@if.pw.edu.pl
+//
+//Comments taken from MevSim fortran source file (by Lanny Ray):
+//
+// (3) model_type - equals 1,2,3,4,5 or 6 so far. See comments in
+// Function dNdpty to see what is calculated.
+// The models included are:
+// = 1, Factorized mt exponential, Gaussian rapidity model
+// = 2, Pratt non-expanding, spherical thermal source model
+// = 3, Bertsch non-expanding spherical thermal source model
+// = 4, Pratt spherically expanding, thermally equilibrated
+// source model.
+// = 5, Factorized pt and eta distributions input bin-by-bin.
+// = 6, Fully 2D pt,eta distributions input bin-by-bin.
+// NOTE: model_type = 1-4 are functions of (pt,y)
+// model_type = 5,6 are functions of (pt,eta)
+// (4) reac_plane_cntrl - Can be either 1,2,3 or 4 where:
+// = 1 to ignore reaction plane and anisotropic flow,
+// all distributions will be azimuthally symm.
+// = 2 to use a fixed reaction plane angle for all
+// events in the run.
+// = 3 to assume a randomly varying reaction plane
+// angle for each event as determined by a
+// Gaussian distribution.
+// = 4 to assume a randomly varying reaction plane
+// for each event in the run as determined by
+// a uniform distribution from 0 to 360 deg.
+// (5) PSIr_mean, PSIr_stdev - Reaction plane angle mean and Gaussian
+// std.dev. (both are in degrees) for cases
+// with reac_plane_cntrl = 2 (use mean value)
+// and 3. Note: these are read in regardless
+// of the value of reac_plane_cntrl.
+// (6) MultFac_mean, MultFac_stdev - Overall multiplicity scaling factor
+// for all PID types; mean and std.dev.;
+// for trigger fluctuations event-to-evt.
+// (7) pt_cut_min,pt_cut_max - Range of transverse momentum in GeV/c.
+// (8) eta_cut_min,eta_cut_max - Pseudorapidity range
+// (9) phi_cut_min,phi_cut_max - Azimuthal angular range in degrees.
+// (10) n_stdev_mult - Number of standard deviations about the mean value
+// of multiplicity to include in the random event-to-
+// event selection process. The maximum number of
+// steps that can be covered is determined by
+// parameter n_mult_max_steps in the accompanying
+// include file 'Parameter_values.inc' which is
+// presently set at 1000, but the true upper limit for
+// this is n_mult_max_steps - 1 = 999.
+// (11) n_stdev_temp - Same, except for the "Temperature" parameter.
+// (12) n_stdev_sigma- Same, except for the rapidity width parameter.
+// (13) n_stdev_expvel - Same, except for the expansion velocity parameter.
+// (14) n_stdev_PSIr - Same, except for the reaction plane angle
+// (15) n_stdev_Vn - Same, except for the anisotropy coefficients, Vn.
+// (16) n_stdev_MultFac - Same, except for the multiplicity scaling factor.
+// (17) n_integ_pts - Number of mesh points to use in the random model
+// parameter selection process. The upper limit is
+// set by parameter nmax_integ in the accompanying
+// include file 'Parameter_values.inc' which is presently
+// set at 100, but the true upper limit for n_integ_pts
+// is nmax_integ - 1 = 99.
+// (18) n_scan_pts - Number of mesh points to use to scan the (pt,y)
+// dependence of the model distributions looking for
+// the maximum value. The 2-D grid has
+// n_scan_pts * n_scan_pts points; no limit to size of
+// n_scan_pts.
+//
+////////////////////////////////////////////////////////////////////
+
#include "TObject.h"
class AliGenMevSim;
class AliMevSimConfig : public TObject {
- friend class AliGenMevSim;
-
protected:
- static const Int_t kMAX_MODEL = 4;
- static const Int_t kMAX_CTRL = 4;
+ static const Int_t fgkMAX_MODEL = 4; //Maximum number of available models
+ static const Int_t fgkMAX_CTRL = 4;//Maximum number of available controls
- Int_t fModelType;
+ Int_t fModelType; //current type of model
- Int_t fReacPlaneCntrl;
- Float_t fPsiRMean, fPsiRStDev;
+ Int_t fReacPlaneCntrl; //reaction plane simulation model
+ Float_t fPsiRMean; //fPsiRMean mean psi
+ Float_t fPsiRStDev; //fPsiRStDev psi variance
- Float_t fMultFacMean, fMultFacStDev;
+ Float_t fMultFacMean;//fMultFacMean Mean multiplicity
+ Float_t fMultFacStDev;//fMultFacStDev multiplicity variance
- Float_t fNStDevMult, fNStDevTemp, fNStDevSigma, fNStDevExpVel, fNStdDevPSIr, fNStDevVn, fNStDevMultFac;
+ Float_t fNStDevMult;//see (10) n_stdev_mult
+ Float_t fNStDevTemp;//(11) n_stdev_temp
+ Float_t fNStDevSigma;//see (12) n_stdev_sigma
+ Float_t fNStDevExpVel;//see (13) n_stdev_expvel
+ Float_t fNStdDevPSIr;//see (14) n_stdev_PSIr
+ Float_t fNStDevVn;//see (15) n_stdev_Vn
+ Float_t fNStDevMultFac;//see (16) n_stdev_MultFac
- Int_t fNIntegPts;
- Int_t fNScanPts;
+ Int_t fNIntegPts;//see (17) n_integ_pts
+ Int_t fNScanPts;//see (18) n_scan_pts
void Init();
~AliMevSimConfig();
void SetModelType(Int_t modelType);
+ Int_t GetModelType() const {return fModelType;}
void SetRectPlane(Int_t ctrl, Float_t psiRMean = 0, Float_t psiRStDev = 0);
+ void GetRectPlane(Int_t& ctrl, Float_t& psiRMean, Float_t& psiRStDev ) const
+ {ctrl = fReacPlaneCntrl; psiRMean = fPsiRMean; psiRStDev = fPsiRStDev;}
+
void SetMultFac(Float_t mean, Float_t stDev);
+ void GetMultFac(Float_t& mean, Float_t& stDev) const {mean = fMultFacMean ;stDev = fMultFacStDev;}
void SetStDev(Float_t mult, Float_t temp, Float_t sigma,
- Float_t expVel, Float_t psiR, Float_t Vn, Float_t multFac);
-
+ Float_t expVel, Float_t psiR, Float_t Vn, Float_t multFac);
+ void GetStDev(Float_t& mult, Float_t& temp, Float_t& sigma,
+ Float_t& expVel, Float_t& psiR, Float_t& Vn, Float_t& multFac) const;
void SetGrid(Int_t integr, Int_t scan);
-
+ void GetGrid(Int_t& integr, Int_t& scan) const {scan=fNScanPts;integr=fNIntegPts;}
ClassDef(AliMevSimConfig,1)
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff