From 53a86efd4cfff06d9f8689246deb1ec7a72c7c6d Mon Sep 17 00:00:00 2001
From: Zhenyu Ye <yezhenyu@EIC-SoLID.local>
Date: Mon, 27 Sep 2021 06:35:17 -0500
Subject: [PATCH] Debug Backward TOF

---
 benchmarks/tof/scripts/gen_tof_hits.cxx | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/benchmarks/tof/scripts/gen_tof_hits.cxx b/benchmarks/tof/scripts/gen_tof_hits.cxx
index 07666fcc..32edc8c9 100644
--- a/benchmarks/tof/scripts/gen_tof_hits.cxx
+++ b/benchmarks/tof/scripts/gen_tof_hits.cxx
@@ -35,7 +35,7 @@ void gen_tof_hits(int n_events = 100,
     // pdgid 111 - pi0
     // pdgid 2212 - proton
     Double_t p     = r1->Uniform(0.2, 4);
-    Double_t costh = cos(12./180*3.1415926); //r1->Uniform(cos_theta_min, cos_theta_max);
+    Double_t costh = -1*cos(12./180*3.1415926); //r1->Uniform(cos_theta_min, cos_theta_max);
     Double_t th    = std::acos(costh);
     Double_t phi   = r1->Uniform(0.0, 2.0 * M_PI);
     Double_t px    = p * std::cos(phi) * std::sin(th);
-- 
GitLab