Generate key string to identify a meson 2pt function
cf_key_meson_2pt(fwd_flav, bwd_flav, snk_gamma, src_gamma, src_p, snk_p)
String, "forward" quark flavour identifier.
String, "backward" quark flavour identifier.
Integer, CVC convention gamma matrix identifier at the source.
Integer, CVC convention gamma matrix identified at the sink.
Integer vector of length 3. (x,y,z) components of the source momentum vector in lattice units.
Integer vector of length 3. (x,y,z) components of the sink momentum vector in lattice units.
A character vector with the HDF5 key.