Four fermion interactions appear in many models of Beyond Standard Model physics. In Technicolour and composite Higgs models Standard Model fermion masses can be generated by four fermion terms. They are also expected to modify the dynamics of the new strongly interacting sector. In particular in technicolour models it has been suggested that they can be used to break infrared conformality and produce a walking theory with a large mass anomalous dimension. We study the SU(2) gauge theory with 2 adjoint fermions and a chirally symmetric four fermion term. We demonstrate chiral symmetry breaking at large four fermion coupling and study the phase diagram of the model.
Adjoint SU(2) with four fermion interactions / Rantaharju, J.; Drach, V.; Pica, C.; Sannino, F.. - In: POS PROCEEDINGS OF SCIENCE. - ISSN 1824-8039. - 128557:(2016), p. 231. (Intervento presentato al convegno 34th Annual International Symposium on Lattice Field Theory, LATTICE 2016 tenutosi a University of Southampton, gbr nel 2016) [10.22323/1.256.0231].
Adjoint SU(2) with four fermion interactions
Sannino F.Co-primo
Conceptualization
2016
Abstract
Four fermion interactions appear in many models of Beyond Standard Model physics. In Technicolour and composite Higgs models Standard Model fermion masses can be generated by four fermion terms. They are also expected to modify the dynamics of the new strongly interacting sector. In particular in technicolour models it has been suggested that they can be used to break infrared conformality and produce a walking theory with a large mass anomalous dimension. We study the SU(2) gauge theory with 2 adjoint fermions and a chirally symmetric four fermion term. We demonstrate chiral symmetry breaking at large four fermion coupling and study the phase diagram of the model.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
