MC sample for Jpsi/psi2s in SMOG2_ppref BeamGas events
This is used for the analysis from @qiuchan about psi2s/Jpsi in SMOG2 during pp-ref, with Beam-Gas only.
This is used for the analysis from @qiuchan about psi2s/Jpsi in SMOG2 during pp-ref, with Beam-Gas only.