gwm17/Mask
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Removed gsl dependence for compatibility with NRB machines. Added in homeade legendre polynomials. Updated README to reflect

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This commit is contained in:
Gordon McCann 2021-06-08 09:58:24 -04:00
parent f90cc7e326
commit 87bde213ba
6 changed files with 22 additions and 5 deletions
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2
README.md
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@ -33,4 +33,4 @@ To run MASK simply do the following from the MASK directory:
Input.txt can be replaced by any text file with the correct format. Input.txt can be replaced by any text file with the correct format.
## Requirements ## Requirements
MASK requires that ROOT is installed for data writting and visualization, as well as for random number generation. It also requires gsl to calculate Legendre Polynomials. Testing has been done only on ROOT 6. Mileage on all other ROOT versions will vary. MASK requires that ROOT is installed for data writting and visualization, as well as for random number generation. Testing has been done only on ROOT 6. Mileage on all other ROOT versions will vary.

6
include/LegendrePoly.h Normal file
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@ -0,0 +1,6 @@
#ifndef LEGENDREPOLY_H
#define LEGENDREPOLY_H
double P_l(int l, double x);
#endif

2
input.txt
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@ -1,5 +1,5 @@
----------Data Information---------- ----------Data Information----------
OutputFile: /media/gordon/b6414c35-ec1f-4fc1-83bc-a6b68ca4325a/gwm17/12C3Hed_13N3546keV_ps_fixedThetaBins_test.root OutputFile: /data1/gwm17/10B3He/Feb2021/12C3Hed_13N3546keV_ps_fixedThetaBins_test.root
SaveTree: yes SaveTree: yes
SavePlots: yes SavePlots: yes
----------Reaction Information---------- ----------Reaction Information----------

2
makefile
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@ -2,7 +2,7 @@ CC=g++
ROOTGEN=rootcint ROOTGEN=rootcint
CFLAGS=-g -Wall `root-config --cflags` CFLAGS=-g -Wall `root-config --cflags`
CPPFLAGS=-I ./include CPPFLAGS=-I ./include
LDFLAGS=`root-config --glibs` -lgsl LDFLAGS=`root-config --glibs`
ROOTINCLDIR=./ ROOTINCLDIR=./
INCLDIR=./include INCLDIR=./include

11
src/LegendrePoly.cpp Normal file
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@ -0,0 +1,11 @@
#include "LegendrePoly.h"
double P_l(int l, double x) {
if(l == 0) {
return 1.0;
} else if (l == 1) {
return x;
} else {
return ((2.0*l + 1.0)*x*P_l(l-1, x) - (l-1.0)*P_l(l-2, x))/(double(l));
}
}

4
src/ReactionSystem.cpp
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@ -1,6 +1,6 @@
#include "ReactionSystem.h" #include "ReactionSystem.h"
#include "KinematicsExceptions.h" #include "KinematicsExceptions.h"
#include <gsl/gsl_sf_legendre.h> #include "LegendrePoly.h"
namespace Mask { namespace Mask {
@ -65,7 +65,7 @@ double ReactionSystem::GetDecayTheta(int L) {
do { do {
costheta = generator->Uniform(-1.0, 1.0); costheta = generator->Uniform(-1.0, 1.0);
check = generator->Uniform(0.0, 1.0); check = generator->Uniform(0.0, 1.0);
probability = std::pow(gsl_sf_legendre_Pl(L, costheta), 2.0); probability = std::pow(P_l(L, costheta), 2.0);
} while(check > probability); } while(check > probability);
return std::acos(costheta); return std::acos(costheta);