Going from Lab frame to Rest frame

ROOT
1

ROOT Version: 5.34
Platform: Scientific Linux
Compiler: 4.8.5

Hi,
I have a TLorentzVector, say (Px, Py, Pz, E). I need to go to the rest frame such that the TLorentzVector becomes (0, 0, 0, M). How to go to the rest frame using Boost() ?

2

LorentzVector Classes

ROOT::Math::LorentzVector

ROOT::Math::PxPyPzEVector