isnucleus.m

Returns true if the particle specification is not an electron, a neutron, a muon, or a ghost.

Syntax

    verdict=isnucleus(spin_spec)

Parameters

    spin_spec - a character string

Outputs

    verdict - true for a nucleus known to Spinach, false
              for an electron, a muon, a neutron, or a ghost

See also

spin.m, gtensorof.m

Spin system specification

Version 2.8, authors: Ilya Kuprov