Wrong calculation mass with SetPtEtaPhiM()

Dear experts,

I just want to noticed that last time when I tried to calculate the mass of 2 particles (m1, m2), the SetPtEtaPhiM() method return (m1+m2) which is not correct!! After that I used SetPxPyPzE() which worked fine. I think that your SetPtEtaPhiM() should have some trouble…
root.cern.ch/root/html/TLorentz … tPtEtaPhiM



Do you have a working code example showing the problem ?
Thank you