[Superchic] chi c2 (1P) mass

[Daniel Johnson]

Dear authors,

I'm very grateful for this package, which as already been very useful for my own CEP studies on LHCb (I'm a Postdoc. in the Oxford LHCb group).

I just noticed that, by default, the chi_c2(1P) mass is set at 3.56620 GeV. Shouldn't this be 3.55620, according to PDG (http://pdg8.lbl.gov/rpp2013v2/pdgLive/Particle.action?node=M057)

Please correct me if I'm wrong. Many thanks for your hard work.

Kind regards,
Dan Johnson