Electroweak symmetry breaking from unparticles

A new type of scalar potential inspired by unparticles is proposed for the electroweak symmetry-breaking. The interaction between the standard model fields and the unparticle sector is described by using the non-integral power of fields that originates from the nontrivial scaling dimension of the unparticle operator. We find that unlike the usual integral-power potential, the electroweak symmetry is broken at the tree level. The scale invariance of the unparticle sector is also broken simultaneously, resulting in a physical Higgs and a lighter scalar particle.