def DeltaGamma_B(wc_obj, par, meson):
r"""Decay width difference defined as
$\Delta\Gamma = \Gamma_1 - \Gamma_2$ in the convention where
$\Delta M = M_2 - M_1$ is positive (and the mass eigenstate
1 is CP-even in the absence of CP violation), as often used in the
$B$ system."""
M12, G12 = get_M12_G12(wc_obj, par, meson)
DM = common.DeltaM(M12, G12)
if DM > 0:
return common.DeltaGamma(M12, G12)
else:
return -common.DeltaGamma(M12, G12)
def DeltaGamma_12(wc_obj, par, meson):
r"""Decay width difference defined as
$\Delta\Gamma = \Gamma_1 - \Gamma_2$, in the convention where the
mass eigenstate 1 is CP-even in the absence of CP violation."""
M12, G12 = get_M12_G12(wc_obj, par, meson)
return common.DeltaGamma(M12, G12)
def DeltaGamma(wc_obj, par, meson):
M12, G12 = get_M12_G12(wc_obj, par, meson)
return common.DeltaGamma(M12, G12)