From b4b3eb9da6d06409c2925cf3f008bbcc1a538ed0 Mon Sep 17 00:00:00 2001
From: tmadlener <thomas.madlener@desy.de>
Date: Thu, 8 Feb 2024 11:55:33 +0100
Subject: [PATCH] Add a relation from a PID to a reco particle

---
 edm4hep.yaml | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/edm4hep.yaml b/edm4hep.yaml
index 0cbbfcc73..e31f8d22a 100644
--- a/edm4hep.yaml
+++ b/edm4hep.yaml
@@ -310,7 +310,8 @@ datatypes:
       - float likelihood     //likelihood of this hypothesis - in a user defined normalization.
     VectorMembers:
       - float parameters     //parameters associated with this hypothesis. Check/set collection parameters ParameterNames_PIDAlgorithmTypeName for decoding the indices.
-
+    OneToOneRelations:
+      - edm4hep::ReconstructedParticle particle // the particle from which this PID has been computed
 
  #------ Cluster
   edm4hep::Cluster: