Beam Spot Missing in MC simulations

Together with @lmarsica and @acelenta, I am studying the shower profiles in MC simulations. In particular, I am using the make_profile_mc.cc code on the 2022 simulations. I have seen that the profiles I get are not centred in (0;0) but, approximately, in (-350;0).

If I understand correctly, this is due to the showerpos definition in make_profile_mc.cc:

const TVector3 showerpos (e.mc->ECALEntryX,e.mc->ECALEntryY,0);

This definition is different from the one used in make_profile.cc for the real data:

const TVector3 showerpos = P_ecal - ECAL0BEAMSPOT_pos;

This second definition shifts the profile and centres it in ~(0;0).

I see that in conddb.h, for geometry 2022B, we have: ECAL0BEAMSPOT_pos = TVector3(-362.6, -8.0, 0.); Do I use the same vector to shift the MC profile? How can I do this properly?

Cheers, Pietro