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Scalar gauge dynamics and Dark Matter
oleh: Dario Buttazzo, Luca Di Luzio, Parsa Ghorbani, Christian Gross, Giacomo Landini, Alessandro Strumia, Daniele Teresi, Jin-Wei Wang
Format: | Article |
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Diterbitkan: | SpringerOpen 2020-01-01 |
Deskripsi
Abstract We consider theories with one gauge group (SU, SO or Sp) and one scalar in a two-index representation. The renormalizable action often has accidental symmetries (such as global U(1) or unusual group parities) that lead to one or more stable states, providing Dark Matter candidates. We discuss the confined phase(s) of each theory and compute the two Higgs phases, finding no generic dualities among them. Discrete gauge symmetries can arise and accidental symmetries can be broken, possibly giving pseudo-Goldstone Dark Matter. Dark Matter candidates can have a complicated sub-structure characteristic of each group and can be accompanied by extra dark radiation.