From c37e6e1bfda0773ddfb00177c6733d4e13853fc5 Mon Sep 17 00:00:00 2001
From: Antonin Portelli <antonin.portelli@me.com>
Date: Tue, 28 Jan 2020 20:15:28 +0000
Subject: [PATCH] effective mass fix

---
 lib/Physics/EffectiveMass.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/Physics/EffectiveMass.cpp b/lib/Physics/EffectiveMass.cpp
index 7899843..194da50 100644
--- a/lib/Physics/EffectiveMass.cpp
+++ b/lib/Physics/EffectiveMass.cpp
@@ -106,9 +106,9 @@ DVec EffectiveMass::operator()(const DVec &corr) const
         break;
     case CorrelatorType::linear:
         em.resize(nt - 1);
-        for (Index t = 0; t < nt - 1; ++t)
+        for (Index t = 1; t < nt; ++t)
         {
-            em(t) = corr(t) - corr(t - 1);
+            em(t - 1) = corr(t) - corr(t - 1);
         }
         break;
     case CorrelatorType::cst: