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diff --git a/data/anainfo/E735_1998_S3905616.info b/data/anainfo/E735_1998_S3905616.info
--- a/data/anainfo/E735_1998_S3905616.info
+++ b/data/anainfo/E735_1998_S3905616.info
@@ -1,33 +1,35 @@
Name: E735_1998_S3905616
Year: 1998
Summary: Charged particle multiplicity in ppbar collisions at $\sqrt{s} = 1.8\;\TeV$
Experiment: E735
Collider: Tevatron
SpiresID: 3905616
-Status: UNVALIDATED - need trigger etc.
+Status: VALIDATED
Authors:
- Holger Schulz <holger.schulz@physik.hu-berlin.de>
- Andy Buckley <andy.buckley@cern.ch>
References:
- Phys.Lett.B435:453-457,1998
RunInfo: QCD events, diffractive processes need to be switched
on in order to fill the low multiplicity regions. The measurement was done in
$|\eta| \lesssim 3.25$ and was extrapolated to full phase space. However, the method of
extrapolation remains unclear.
NumEvents: 1000000
Beams: [p-, p+]
Energies: [1800]
PtCuts: [0]
Description:
- A measurement of the charged multiplicity distribution at $\sqrt{s} = 1.8\;\TeV$.
+ A measurement of the charged multiplicity distribution at $\sqrt{s} = 1.8\;\TeV$. The
+ analysis is reproduced to the best of abilities. There is no theory curve in the paper
+ to compare to.
BibKey: Alexopoulos:1998bi
BibTeX: '@Article{Alexopoulos:1998bi,
author = "Alexopoulos, T. and others",
title = "{The role of double parton collisions in soft hadron interactions}",
journal = "Phys. Lett.",
volume = "B435",
year = "1998",
pages = "453-457",
doi = "10.1016/S0370-2693(98)00921-6",
SLACcitation = "%%CITATION = PHLTA,B435,453;%%"
}'
diff --git a/src/Analyses/E735_1998_S3905616.cc b/src/Analyses/E735_1998_S3905616.cc
--- a/src/Analyses/E735_1998_S3905616.cc
+++ b/src/Analyses/E735_1998_S3905616.cc
@@ -1,75 +1,72 @@
// -*- C++ -*-
#include "Rivet/Analysis.hh"
#include "Rivet/Projections/ChargedFinalState.hh"
#include "Rivet/Projections/TriggerCDFRun0Run1.hh"
#include "Rivet/Projections/TriggerUA5.hh"
namespace Rivet {
/// @brief E735 charged multiplicity in NSD-triggered events
class E735_1998_S3905616 : public Analysis {
public:
/// Constructor
E735_1998_S3905616() : Analysis("E735_1998_S3905616") {
_sumWTrig = 0;
}
/// @name Analysis methods
//@{
void init() {
// Projections
- /// @todo E735 trigger?
- //addProjection(TriggerCDFRun0Run1(), "Trigger");
addProjection(TriggerUA5(), "Trigger");
addProjection(ChargedFinalState(), "FS");
// Histo
_hist_multiplicity = bookHisto1D(1, 1, 1);
}
void analyze(const Event& event) {
- //const bool trigger = applyProjection<TriggerCDFRun0Run1>(event, "Trigger").minBiasDecision();
const bool trigger = applyProjection<TriggerUA5>(event, "Trigger").nsdDecision();
if (!trigger) vetoEvent;
const double weight = event.weight();
_sumWTrig += weight;
const ChargedFinalState& fs = applyProjection<ChargedFinalState>(event, "FS");
const size_t numParticles = fs.particles().size();
_hist_multiplicity->fill(numParticles, weight);
}
void finalize() {
scale(_hist_multiplicity, 1/_sumWTrig);
}
//@}
private:
/// @name Weight counter
//@{
double _sumWTrig;
//@}
/// @name Histograms
//@{
Histo1DPtr _hist_multiplicity;
//@}
};
// The hook for the plugin system
DECLARE_RIVET_PLUGIN(E735_1998_S3905616);
}

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