  We show that the form factor of an electron or a muon is unity for the
modulus of the momentum transfer away from the Hagedorn temperatures
$T^{e}_0\sim m_e$ and $T^{\mu}_0\sim m_\mu$ and lower than the hadronic
Hagedorn temperature $T^{\tiny{QCD}}_0\sim m_\pi$. The structure of the
electron or the muon is resolved for momemtum transfers comparable to
$T^{e,\mu}_0$. This is seen in scattering experiments performed in the 1950s,
1960s, and early 1970s to test the validity of QED. We interprete center-vortex
loops with no self-intersection, occurring in the confining phases of each
SU(2) gauge-theory factor, as {\sl Majorana} neutrinos. We offer a possible
explanation for a contribution to $\Lambda_{\tiny{cosmo}}$ not generated by the
so-far nonconfining, strongly interacting gauge theory SU(2)$_{\tiny{CMB}}$.
