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arXiv · 2502.03598

Higgs Thermal Nonequilibrium in Primordial QGP

Cheng Tao Yang·Shelbi Foster·Johann Rafelski
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Abstract

In this work we investigate the chemical and kinetic nonequilibrium dynamics of the Higgs boson during the primordial Universe QGP (quark-gluon plasma) epoch $130\mathrm{\,GeV}>T>10\mathrm{\,GeV}$. We show that the Higgs bosons is always out of chemical abundance equilibrium with a fugacity $\Upsilon_h = 0.69$ due to virtual decay channels. Additionally, Higgs momentum distribution is found to be ``cold'' for $T<25$\,GeV, since the scattering rate drops below the production rate.

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Cheng Tao Yang, Shelbi Foster, Johann Rafelski. 2025-02-05. Higgs Thermal Nonequilibrium in Primordial QGP. https://doi.org/10.1140/epjs/s11734-025-01624-w

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