Cascades of high-energy SM particles in the primordial thermal plasma
arXiv:2208.11708 · doi:10.1007/JHEP10(2022)116
Abstract
High-energy standard model (SM) particles in the early Universe are generated by the decay of heavy long-lived particles. The subsequent thermalization occurs through the splitting of high-energy primary particles into lower-energy daughters in primordial thermal plasma. The principal example of such processes is reheating after inflation caused by the decay of inflatons into SM particles. Understanding of the thermalization at reheating is extremely important as it reveals the origin of the hot Universe, and could open up new mechanisms for generating dark matter and/or baryon asymmetry. In this paper, we investigate the thermalization of high-energy SM particles in thermal plasma, taking into account the Landau--Pomeranchuk--Migdal effect in the leading-log approximation. The whole SM particle content and all the relevant SM interactions are included for the first time, i.e., the full gauge interactions of SU(3)SU(2)U(1) and the top Yukawa interaction. The distribution function of each SM species is computed both numerically and analytically. We have analytically obtained the distribution function of each SM species after the first few splittings. Furthermore, we demonstrate that, after a sufficient number of splittings, the particle distributions are asymptotic to certain values at low momentum, independent of the high-energy particles injected by inflaton decay. The results are useful to calculate the DM abundance produced during the pre-thermal phase. An example is provided to illustrate a way to calculate the DM abundance from the scattering between the thermal plasma and high-energy particles in the cascade.
arXiv comment41 pages, 7 figures; v2: minor comments added, published version; v3: numerical errors corrected (see the main text for detail)
References in corpus (72)
- Towards the Theory of Reheating After Inflation
- Reheating after Inflation
- Universe Reheating after Inflation
- Multiple Collisions and Induced Gluon Bremsstrahlung in QCD
- Largest temperature of the radiation era and its cosmological implications
- MeV-scale Reheating Temperature and Thermalization of Neutrino Background
- Model Independent Properties and Cosmological Implications of the Dilaton and Moduli Sectors of 4-d Strings
- Cosmological Implications of Dynamical Supersymmetry Breaking
- What is the lowest possible reheating temperature?
- Photon and Gluon Emission in Relativistic Plasmas
- Photon Emission from Quark-Gluon Plasma: Complete Leading Order Results
- Production of massive particles during reheating
- Photon Emission from Ultrarelativistic Plasmas
- Effective Kinetic Theory for High Temperature Gauge Theories
- Cosmological Constraints on Late-time Entropy Production
- Big-bang Nucleosynthesis Enters the Precision Era
- MeV-scale reheating temperature and thermalization of oscillating neutrinos by radiative and hadronic decays of massive particles
- Bounds on very low reheating scenarios after Planck
- In Wino Veritas? Indirect Searches Shed Light on Neutralino Dark Matter
- Energy Loss of Leading Partons in a Thermal QCD Medium
- The oscillation effects on thermalization of the neutrinos in the universe with low reheating temperature
- Resumming double logarithms in the QCD evolution of color dipoles
- Thermalization in Weakly Coupled Nonabelian Plasmas
- Reheating and Post-inflationary Production of Dark Matter
- Cosmological Moduli and the Post-Inflationary Universe: A Critical Review
- O(g) plasma effects in jet quenching
- Inflaton Oscillations and Post-Inflationary Reheating
- Quantum Radiation of Oscillons
- Thermal production of ultrarelativistic right-handed neutrinos: Complete leading-order results
- Thermalization after/during Reheating
- Freeze-In Dark Matter with Displaced Signatures at Colliders
- Thermal production of relativistic Majorana neutrinos: Strong enhancement by multiple soft scattering
- Approach to equilibrium in weakly coupled nonabelian plasmas
- Dark Matter Production in Late Time Reheating
- Enhancement of the Dark Matter Abundance Before Reheating: Applications to Gravitino Dark Matter
- PAMELA Satellite Data as a Signal of Non-Thermal Wino LSP Dark Matter
- Dynamics of oscillating scalar field in thermal environment
- Thermalisation after inflation
- Ultraviolet Freeze-in and Non-Standard Cosmologies
- Thermalization after inflation and production of massive stable particles
- Thermalization Process after Inflation and Effective Potential of Scalar Field
- Non-Thermal Dark Matter Mimicking An Additional Neutrino Species In The Early Universe
- Prethermalization Production of Dark Matter
- Production of massive stable particles in inflaton decay
- UV Cascade in Classical Yang-Mills via Kinetic Theory
- Picturing perturbative parton cascades in QCD matter
- Inflation and High-Scale Supersymmetry with an EeV Gravitino
- Radiative Production of Non-thermal Dark Matter
- Chemical Equilibration in Hadronic Collisions
- Chemical Equilibration in Weakly Coupled QCD
- Dissipative Effects on Reheating after Inflation
- Dark Matter Production in an Early Matter Dominated Era
- QCD Splitting/Joining Functions at Finite Temperature in the Deep LPM Regime
- Dark Matter Production during the Thermalization Era
- Equilibration of the Quark-Gluon Plasma at finite net-baryon density in QCD kinetic theory
- Equilibration of weakly coupled QCD plasmas
- Oscillons from Pure Natural Inflation
- Hard thermal loops for soft or collinear external momenta
- Energy Spectrum of Thermalizing High Energy Decay Products in the Early Universe
- Thermalization of non-abelian gauge theories at next-to-leading order
- Black Hole Production of Monopoles in the Early Universe
- Post-inflationary thermalization with hadronization scenario
- Non-thermal Dark Matter from Modified Early Matter Domination
- Leptogenesis via Neutrino Oscillation Magic
- Late Reheating, Hadronic Jets and Baryogenesis
- Reheating-era leptogenesis
- Freeze-in Production of Dark Matter Prior to Early Matter Domination
- The Secret Higgstory of the Highest Temperature during Reheating
- Direct baryogenesis in the broken phase
- Averaged Number of the Lightest Supersymmetric Particles in Decay of Superheavy Particle with Long Lifetime
- Moduli induced cogenesis of baryon asymmetry and dark matter
- Recrudescence of massive fermion production by oscillons
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- WIMPs during Reheating
- Formation of hot spots around small primordial black holes
- Lepton collider as a window to reheating via freezing in dark matter detection. Part II
- Thermalization and hotspot formation around small primordial black holes
- Strong cosmological constraints on the neutrino magnetic moment
- Adiabatic Hydrodynamization and the Emergence of Attractors: a Unified Description of Hydrodynamization in Kinetic Theory
- Dark matter cooling during early matter-domination boosts sub-earth halos