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GUT baryogenesis after preheating: numerical study of the production and decay of X-bosons

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arxiv hep-ph/9801306 v2 pith:XG43LZL4 submitted 1998-01-14 hep-ph astro-phhep-th

classification hep-phastro-phhep-th
keywords preheatinggammabaryogenesisbosonsdecayproductionaccountasymmetry
verification ladder T0 review T1 audit T2 compute T3 formal

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abstract

We perform a fully non-linear calculation of the production of supermassive Grand Unified Theory (GUT) $X$ bosons during preheating, taking into account the fact that they are unstable with a decay width $\Gamma_X$. We show that parametric resonance does not develop if $\Gamma_X$ is larger than about $10^{-2} m_X$. We compute the nonthermal number density of superheavy bosons produced in the preheating phase and demonstrate that the observed baryon asymmetry may be explained by GUT baryogenesis after preheating if $\Gamma_X$ is smaller than about $10^{-3} m_X$.

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Cited by 3 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. CosmoLattice 2.0

    astro-ph.CO 2026-07 conditional novelty 6.0 of 10

    CosmoLattice v2.0 extends lattice cosmology simulations with non-minimal scalars, ALP–gauge couplings, defect networks, low-storage RK integrators, optimized GWs, and O(10) GPU speedups.

  2. The art of simulating the early Universe. Part III: Scalar-Gauge-Fluid Dynamics

    astro-ph.CO 2026-07 accept novelty 5.0 of 10

    Detailed continuum-to-lattice schemes are given for perfect/imperfect fluids alone or coupled to scalars/gauges in FLRW, enabling self-consistent CosmoLattice simulations of early-Universe plasma dynamics and GWs.

  3. Scalar-induced gravitational waves from inflation with symmetry breaking

    astro-ph.CO 2026-07 conditional novelty 5.0 of 10

    Late gauge-field excitation in charged symmetry-breaking inflation pushes enhanced SIGWs into the GHz band, where longitudinal and charge-mixing parameters reshape the spectrum in opposite, distinguishable ways.

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