Standard model cross-over on the lattice
By M. D’Onofrio, K. Bern, U. Helsinki. 2015
170 citations recorded by the source corpus.
With the physical Higgs mass the standard model symmetry restoration phase transition is a smooth cross-over. We study the thermodynamics of the cross-over using numerical lattice Monte Carlo simulations of an effective SU(2)×U(1) gauge+Higgs theory, significantly improving on previously published results. We measure the Higgs field expectation value, thermodynamic quantities like pressure, energy density, speed of sound and heat capacity, and screening masses associated with the Higgs and Z fields. While the cross-over is smooth, it is very well defined with a width of only ∼5 GeV. We measure the cross-over temperature from the maximum of the susceptibility of the Higgs condensate, with the result Tc=159.5±1.5 GeV. Outside of the narrow cross-over region the perturbative results agree well with nonperturbative ones.
Subfields: Nuclear and High Energy Physics
View Paper: https://www.semanticscholar.org/paper/a20a75749c0df06561c2ef0caa1c847668052c36
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In Nuclear and High Energy Physics
Citations in the corpus
- Primordial gravitational waves, precisely: the role of thermodynamics in the Standard Model (2018, background): “These include the investigation of the equation of state of 2 + 1 [61–63] and 2 + 1 + 1 [64] flavor lattice QCD in the continuum limit, and that of the electroweak crossover with the physical Higgs mass of 125 GeV on the lattice [65,66].”
- Theoretical uncertainties for cosmological first-order phase transitions (2020, background): “10 08 calculations of first-order phase transitions, using the Standard Model effective field theory as our guide.”