Motivated by searches for $0\nu\beta\beta$ decay in nuclear experiments and collider probes of lepton number violation at dimension $d\geq7$, we investigate the sensitivity to $d=5$ Weinberg operator using non-resonant signature $pp\to \ell^\pm \ell'^{\pm} j j$ LHC. We develop a prescription that is applicable collisions decays, focus on $\ell\ell'=\mu\mu$ channel, which beyond reach decays. Fo...

In Coleman-Weinberg symmetry breaking, all dimensionful parameters vanish and the symmetry is broken by loop corrections. Before Coleman-Weinberg symmetry breaking in the Standard Model was experimentally ruled out, it had already been excluded on cosmological grounds. In this Brief Report, the cosmological analysis is carried out for Coleman-Weinberg models with extended Higgs sectors, which a...