From b250034f2f1b448884edb986131b0fb303425229 Mon Sep 17 00:00:00 2001
From: Meng_Lu <1501110102@pku.edu.cn>
Date: Fri, 2 Jun 2023 11:10:36 +0200
Subject: [PATCH 1/2] Update ReweightUserHooks.h

---
 .../Pythia8Interface/plugins/ReweightUserHooks.h             | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/GeneratorInterface/Pythia8Interface/plugins/ReweightUserHooks.h b/GeneratorInterface/Pythia8Interface/plugins/ReweightUserHooks.h
index 886e5faac1c16..5792ef54de5f2 100644
--- a/GeneratorInterface/Pythia8Interface/plugins/ReweightUserHooks.h
+++ b/GeneratorInterface/Pythia8Interface/plugins/ReweightUserHooks.h
@@ -27,7 +27,7 @@ class PtHatReweightUserHook : public Pythia8::UserHooks {
 class PtHatEmpReweightUserHook : public Pythia8::UserHooks {
 public:
   PtHatEmpReweightUserHook(const std::string& tuneName = "") {
-    if (tuneName == "CP5")
+    if (tuneName == "CP5" || tuneName == "CP5Run3")
       p = {7377.94700788, 8.38168461349, -4.70983112392, -0.0310148108446, -0.028798537937, 925.335472326};
     //Default reweighting - works good for tune CUEPT8M1
     else
@@ -37,9 +37,10 @@ class PtHatEmpReweightUserHook : public Pythia8::UserHooks {
            -5.1575514014931e-01,
            5.5951279807561e-02,
            3.5e+02};
+    const double ecms = (tuneName == "CP5Run3" ? 13600. : 13000.);
     sigma = [this](double x) -> double {
       return (p[0] * pow(x, p[2] + p[3] * log(0.01 * x) + p[4] * pow(log(0.01 * x), 2)) *
-              pow(1 - 2 * x / (13000. + p[5]), p[1])) *
+              pow(1 - 2 * x / (ecms + p[5]), p[1])) *
              x;
     };
   }

From 265071478fea26e1ab31b4de228fa55998581956 Mon Sep 17 00:00:00 2001
From: Meng_Lu <1501110102@pku.edu.cn>
Date: Fri, 2 Jun 2023 11:13:04 +0200
Subject: [PATCH 2/2] Update ReweightUserHooks.h

---
 GeneratorInterface/Pythia8Interface/plugins/ReweightUserHooks.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/GeneratorInterface/Pythia8Interface/plugins/ReweightUserHooks.h b/GeneratorInterface/Pythia8Interface/plugins/ReweightUserHooks.h
index 5792ef54de5f2..3e3d2897bf2c6 100644
--- a/GeneratorInterface/Pythia8Interface/plugins/ReweightUserHooks.h
+++ b/GeneratorInterface/Pythia8Interface/plugins/ReweightUserHooks.h
@@ -38,7 +38,7 @@ class PtHatEmpReweightUserHook : public Pythia8::UserHooks {
            5.5951279807561e-02,
            3.5e+02};
     const double ecms = (tuneName == "CP5Run3" ? 13600. : 13000.);
-    sigma = [this](double x) -> double {
+    sigma = [this, ecms](double x) -> double {
       return (p[0] * pow(x, p[2] + p[3] * log(0.01 * x) + p[4] * pow(log(0.01 * x), 2)) *
               pow(1 - 2 * x / (ecms + p[5]), p[1])) *
              x;