1 files changed, 3 insertions, 0 deletions
diff --git a/src/likelihood.h b/src/likelihood.h
index f5adf2f..129c313 100644
--- a/src/likelihood.h
+++ b/src/likelihood.h
@@ -47,12 +47,15 @@
 #define PHOTONS_PER_MEV 400.0
 
 typedef struct particle {
+    int id;
     double mass;
     double range;
     double rad;
     double *x;
     double *T;
     size_t n;
+    double a;
+    double b;
 } particle;
 
 particle *particle_init(int id, double T0, size_t n);