feynlag.groups.gauge.SU3

class feynlag.groups.gauge.SU3(name, coupling=None)[source]

SU(3); legacy labels 1 (singlet), 3 (fundamental), 8 (adjoint).

__init__(name, coupling=None)[source]

Methods

__init__(name[, coupling])

bosons([name])

Create (once) and return this group's gauge boson field.

generators(rep)

List of generator matrices T^a for representation rep.

rep_dim(rep)

Dimension of the representation labelled rep.

structure_constant(a, b, c)

structure_constants()

f^{abc} as a dict {(a, b, c): value} of non-zero entries.

Attributes

abelian

g

The coupling as a plain SymPy symbol.

n_generators

Number of generators (= number of gauge bosons).