diff --git a/Generators/share/egconfig/pythia8_OO.cfg b/Generators/share/egconfig/pythia8_OO.cfg
new file mode 100644
index 0000000000000..ff098e6b65135
--- /dev/null
+++ b/Generators/share/egconfig/pythia8_OO.cfg
@@ -0,0 +1,8 @@
+### beams
+Beams:idA 1000080160    # Oxygen
+Beams:idB 1000080160    # Oxygen
+Beams:eCM 10720.        # GeV
+
+### decays
+ParticleDecays:limitTau0 on	
+ParticleDecays:tau0Max 10.	
diff --git a/Generators/share/egconfig/pythia8_pO.cfg b/Generators/share/egconfig/pythia8_pO.cfg
new file mode 100644
index 0000000000000..aff9d3337cd9d
--- /dev/null
+++ b/Generators/share/egconfig/pythia8_pO.cfg
@@ -0,0 +1,8 @@
+### beams
+Beams:idA 2212          # proton
+Beams:idB 1000080160    # Oxygen
+Beams:eCM 13600.        # GeV
+
+### decays
+ParticleDecays:limitTau0 on	
+ParticleDecays:tau0Max 10.