Electroweak baryogenesis and dark matter from a singlet Higgs

By J. Cline, K. Kainulainen. 2012

250 citations recorded by the source corpus.

If the Higgs boson H couples to a singlet scalar S via ?m|H|2S2, a strong electroweak phase transition can be induced through a large potential barrier that exists already at zero temperature. In this case properties of the phase transition can be computed analytically. We show that electroweak baryogenesis can be achieved using CP violation from a dimension-6 operator that couples S to the top-quark mass, suppressed by a new physics scale that can be well above 1 TeV. Moreover the singlet is a dark matter candidate whose relic density is 3% of the total dark matter density, but which nevertheless interacts strongly enough with nuclei (through Higgs exchange) to be just below the current XENON100 limits. The DM mass is predicted to be in the range 80?160 GeV.

Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/5412f414dcefbdc4ed5cc4c0988f54c7d86d5e89

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In Astronomy and Astrophysics

1. T. Konstandin
2. A. Wulzer
3. M. Raidal
4. G. Panico
5. John Ellis
6. Christophe Grojean
7. J. No
8. S. Curtis

In Nuclear and High Energy Physics

1. Cms Collaboration
2. Atlas Collaboration
3. Gudrun Heinrich
4. Fabio Maltoni
5. Valentin Hirschi
6. R. Frederix
7. M. Zaro
8. Ansgar Denner

Citations in the corpus

• Baryogenesis from the weak scale to the grand unification scale (2020, background): “Electroweak baryogenesis for such a setup was studied by Espinosa et al. (2012); see also Cline and Kainulainen (2013), Bian, Wu, and Xie (2019), and Carena, Liu, and Wang (2019a).”
• Testing electroweak baryogenesis with future colliders (2014, background): “The singlet thermal annihilation cross section has been presented in [53].”
• $Z_3$ Scalar Singlet Dark Matter (2012, background): “ly well motivated connection between the DM, ordinary matter and non-vanishing neutrino masses is realised via grand unication [5]. The singlet DM could be connected to electroweak (EW) baryogenesis [6]. In 1 arXiv:1211.1014v2 [hep-ph] 10 Jan 2013 the SM with the 125 GeV Higgs boson, H, the vacuum b”
• Higgs Physics at the HL-LHC and HE-LHC (2019, background): “Perhaps, the simplest illustration of this potential is the extension of the SM scalar sector with a single real singlet scalar [395, 396, 397, 398, 399, 400, 401, 402, 403, 404, 405, 333, 406], the “xSM” [407] (for analogous studies with a complex singlet, see [408, 409]).”
• Quantum transport and electroweak baryogenesis (2013, background): “hase transition (κ>0) while an upper bound on the singlet mass arises from the requirement that the SU(2)L-broken phase is the global minimum at T = 0. Detailed plots are given in [73] and also in [74]. For fixed Higgs and singlet masses, the critical temperature can always be reduced down to the ”