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-rw-r--r--Source/Particles/Pusher/UpdateMomentumBorisWithRadiationReaction.H4
1 files changed, 2 insertions, 2 deletions
diff --git a/Source/Particles/Pusher/UpdateMomentumBorisWithRadiationReaction.H b/Source/Particles/Pusher/UpdateMomentumBorisWithRadiationReaction.H
index 8dfa85ed6..6f0eae476 100644
--- a/Source/Particles/Pusher/UpdateMomentumBorisWithRadiationReaction.H
+++ b/Source/Particles/Pusher/UpdateMomentumBorisWithRadiationReaction.H
@@ -71,8 +71,8 @@ void UpdateMomentumBorisWithRadiationReaction(
const amrex::Real coeff = gamma_n*gamma_n*(fl_q2-bdotE2);
//Radiation reaction constant
- const amrex::Real RRcoeff = 2.0_rt*PhysConst::r_e*q*q/
- (3.0_rt*m*m*PhysConst::c*PhysConst::c);
+ const amrex::Real q_over_mc = q/(m*PhysConst::c);
+ const amrex::Real RRcoeff = (2.0_rt/3.0_rt)*PhysConst::r_e*q_over_mc*q_over_mc;
//Compute the components of the RR force
const amrex::Real frx =