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added more explanation to GeneratorInterface/GenFilters/interface/TotalKinematicsFilter.h #2103

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merged 1 commit into from Jan 21, 2014
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added more explanation to GeneratorInterface/GenFilters/interface/TotalKinematicsFilter.h #2103

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15 changes: 13 additions & 2 deletions GeneratorInterface/GenFilters/interface/TotalKinematicsFilter.h
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@@ -1,8 +1,6 @@
#ifndef TotalKinematicsFilter_h
#define TotalKinematicsFilter_h

// Filter to select events with deviation from nominal total kinematics smaller than a tolerance parameter

// system include files
#include <memory>
// user include files
Expand All @@ -16,6 +14,16 @@
#include "DataFormats/HepMCCandidate/interface/GenParticle.h"
#include "DataFormats/Candidate/interface/Particle.h"

/** Filter to select events with deviation from nominal total
kinematics smaller than a tolerance parameter.

This filter adds up the momenta of all generated particles
(except the initial state protons) and requires that the sum of the
of the three-momenta is zero (within tolerance) and that the sum
of the energies is equal to the center of mass energy (within
tolerance). The center of mass energy is obtained from the
initial state protons. The tolerance is specified in GeV.
*/
class TotalKinematicsFilter : public edm::EDFilter
{
public:
Expand All @@ -28,7 +36,10 @@ class TotalKinematicsFilter : public edm::EDFilter
// ----------member data ---------------------------

edm::InputTag src_;

/** tolerance in GeV */
double tolerance_;

bool verbose_;

};
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