|Speaker:||Jisuke Kubo (Kanazawa U)|
|Title:||Scale Invariant Extension of the Standard Model with QCD-like hidden sector and composite Dark Matter|
|Date (JST):||Fri, Dec 20, 2013, 13:30 - 14:30|
|Place:||Seminar Room A|
We consider a classically scale invariant extension of the standard model, in which the scale invariance is broken by dynamical chiral symmetry breaking in a QCD-like hidden sector. Because of the unbroken SU(3) flavor symmetry, the quasi Nambu-Goldstone bosons are stable so that they can become dark matter particles.
We study their properties with the Nambu-Jona-Lasinio method and also discuss the phase transition in the dark sector as well as in the electroweak sector.