from basisgen import irrep, algebra, Field, EFT
BL, BR = Field.strength_tensors(
name='B',
internal_irrep=irrep('SU2', '0'),
charges=[0],
)
my_eft = EFT(algebra('SU2'), [BL, BR])
invariants = my_eft.invariants(max_dimension=8, use_eom=False)
print(invariants)
def sm_irrep(highest_weight_str):
return irrep('SU3 x SU2', highest_weight_str)
phi = Field(name='phi',
lorentz_irrep=scalar,
internal_irrep=sm_irrep('0 0 1'),
charges=[Fraction(1, 2)],
statistics=boson,
dimension=1)
phic = phi.conjugate
BL, BR = Field.strength_tensors(
name='B',
internal_irrep=sm_irrep('0 0 0'),
charges=[0],
)
WL, WR = Field.strength_tensors(
name='W',
internal_irrep=sm_irrep('0 0 2'),
charges=[0],
)
GL, GR = Field.strength_tensors(
name='G',
internal_irrep=sm_irrep('1 1 0'),
charges=[0],
)