From 7967a1d98fccb21fed20c85644dc7081bb55f2d8 Mon Sep 17 00:00:00 2001
From: Andrey Popov <rainfinder@gmail.com>
Date: Wed, 3 Aug 2016 17:08:25 +0200
Subject: [PATCH] Fix a bug in stochastic JER smearing

Resolution in pt is relative, so should not divide by pt.
---
 modules/extensions/src/JetCorrectorService.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/modules/extensions/src/JetCorrectorService.cpp b/modules/extensions/src/JetCorrectorService.cpp
index b641bf6..57286bc 100644
--- a/modules/extensions/src/JetCorrectorService.cpp
+++ b/modules/extensions/src/JetCorrectorService.cpp
@@ -153,7 +153,7 @@ double JetCorrectorService::Eval(Jet const &jet, double rho, SystType syst /*= S
               jerProvider->getResolution({{JME::Binning::JetPt, jecCorrPt},
               {JME::Binning::JetEta, jet.Eta()}, {JME::Binning::Rho, rho}});
             double const jerFactor = 1. + rGen->Gaus(0., ptResolution) *
-              std::sqrt(std::max(std::pow(jerSF, 2) - 1., 0.)) / jecCorrPt;
+              std::sqrt(std::max(std::pow(jerSF, 2) - 1., 0.));
             
             corrFactor *= jerFactor;
         }