ĪTLAS collaboration, Combination of searches for invisible Higgs boson decays with the ATLAS experiment, Phys. ĬMS collaboration, Search for invisible decays of a Higgs boson produced through vector boson fusion in proton-proton collisions at \( \sqrt \) = 13 TeV, Phys. Vaskonen, Electroweak baryogenesis and gravitational waves from a real scalar singlet, Phys. Tucker-Smith, Baryogenesis and gravity waves from a UV-completed electroweak phase transition, Phys. Okun, Cosmological Consequences of the Spontaneous Breakdown of Discrete Symmetry, Zh. Wang, Electroweak phase transition with spontaneous Z 2 -breaking, JHEP 08 (2020) 107. Riembau, Probing the electroweak phase transition via enhanced di-Higgs boson production, Phys. Perelstein, Dynamics of Electroweak Phase Transition In Singlet-Scalar Extension of the Standard Model, Phys. Yu, Testing Electroweak Baryogenesis with Future Colliders, JHEP 11 (2014) 127. Kainulainen, Electroweak baryogenesis and dark matter from a singlet Higgs, JCAP 01 (2013) 012. Wang, Strongly First Order Phase Transitions Near an Enhanced Discrete Symmetry Point, Phys. Riva, Strong Electroweak Phase Transitions in the Standard Model with a Singlet, Nucl. Shaughnessy, Singlet Higgs phenomenology and the electroweak phase transition, JHEP 08 (2007) 010. Quirós, Novel Effects in Electroweak Breaking from a Hidden Sector, Phys. Quirós, The Electroweak phase transition with a singlet, Phys. Riva, Electroweak Baryogenesis in Non-minimal Composite Higgs Models, JCAP 01 (2012) 012. Serra, Beyond the Minimal Composite Higgs Model, JHEP 04 (2009) 070. Sakharov, Violation of CP Invariance, C asymmetry, and baryon asymmetry of the universe, Sov.
To this end, we additionally provide a complete classification of the structure of the Higgs potential (and the Yukawa couplings) in SO(6) /SO(5) models with fermions in the 1, 6, 15 or 20′ of SO(6).Ī.D. Sticking to the latter framework, we present a concrete SO(6) /SO(5) composite realization of the idea.
This is accomplished by considering D > 4 operators that emerge on general grounds, understanding the model as the low energy tail of a more complete theory, like for example in composite Higgs scenarios. Here we present a framework with a real scalar singlet that features a different thermal history that avoids this problem by never restoring the Z 2 symmetry in the early universe. However they generically also lead to the emergence of phenomenologically problematic domain walls. Simple scalar-singlet extensions of the Standard Model with a (spontaneously broken) Z 2 symmetry allow for a strong first order electroweak phase transition, as sought in order to realize electroweak baryogenesis.
0 kommentar(er)
