First order thermal phase transition with 126 GeV Higgs mass

Laine M, Nardini G, Rummukainen K (2014)
In: PoS LATTICE2013. 104.

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Konferenzbeitrag | Veröffentlicht | Englisch
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Abstract / Bemerkung
We study the strength of the electroweak phase transition in models with twolight Higgs doublets and a light SU(3)_c triplet by means of latticesimulations in a dimensionally reduced effective theory. In the parameterregion considered the transition on the lattice is significantly stronger thanindicated by a 2-loop perturbative analysis. Within some ultravioletuncertainties, the finding applies to MSSM with a Higgs mass m_h approximately126 GeV and shows that the parameter region useful for electroweak baryogenesisis enlarged. In particular (even though only dedicated analyses can quantifythe issue), the tension between LHC constraints after the 7 TeV and 8 TeV runsand frameworks where the electroweak phase transition is driven by light stops,seems to be relaxed.
Erscheinungsjahr
Titel des Konferenzbandes
PoS LATTICE2013
Seite
104
Konferenz
31st International Symposium on Lattice Field Theory (Lattice 2013)
Konferenzort
Mainz, Germany
Konferenzdatum
2013-07-29 – 2013-08-03
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Laine M, Nardini G, Rummukainen K. First order thermal phase transition with 126 GeV Higgs mass. In: PoS LATTICE2013. 2014: 104.
Laine, M., Nardini, G., & Rummukainen, K. (2014). First order thermal phase transition with 126 GeV Higgs mass. PoS LATTICE2013, 104.
Laine, M., Nardini, G., and Rummukainen, K. (2014). “First order thermal phase transition with 126 GeV Higgs mass” in PoS LATTICE2013 104.
Laine, M., Nardini, G., & Rummukainen, K., 2014. First order thermal phase transition with 126 GeV Higgs mass. In PoS LATTICE2013. pp. 104.
M. Laine, G. Nardini, and K. Rummukainen, “First order thermal phase transition with 126 GeV Higgs mass”, PoS LATTICE2013, 2014, pp.104.
Laine, M., Nardini, G., Rummukainen, K.: First order thermal phase transition with 126 GeV Higgs mass. PoS LATTICE2013. p. 104. (2014).
Laine, Mikko, Nardini, Germano, and Rummukainen, Kari. “First order thermal phase transition with 126 GeV Higgs mass”. PoS LATTICE2013. 2014. 104.

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arXiv: 1311.4424

Inspire: 1264813

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