Studies of a thermally averaged p-wave Sommerfeld factor

Abstract

Thermal pair annihilation of heavy particles, such as dark matter or its co-annihilation partners, can be strongly influenced by attractive interactions. We investigate the case that pair annihilation proceeds through a velocity-suppressed $p$-wave operator, in the presence of an SU(3) gauge force. Making use of a non-relativistic effective theory, the thermal average of the pair-annihilation rate is estimated both through a resummed perturbative computation and through lattice simulation, in the range $M/T\sim \mathrm{10...30}$. Bound states contribute to the annihilation process and enhancement factors of up to $\sim 100$ can be found.

arXiv comment15 pages

References in corpus (33)

• Rigorous QCD Analysis of Inclusive Annihilation and Production of Heavy Quarkonium
• Cosmology and Astrophysics of Minimal Dark Matter
• Non-Perturbative Effect on Dark Matter Annihilation and Gamma Ray Signature from Galactic Center
• Real-time static potential in hot QCD
• Static quark-antiquark pairs at finite temperature
• The static potential in QCD to two loops
• Sommerfeld Enhancements for Thermal Relic Dark Matter
• Real and imaginary-time $Q\bar{Q}$ correlators in a thermal medium
• First results from 2+1 dynamical quark flavors on an anisotropic lattice: light-hadron spectroscopy and setting the strange-quark mass
• Sommerfeld factor for arbitrary partial wave processes
• Bound-state formation for thermal relic dark matter and unitarity
• Two-loop QCD gauge coupling at high temperatures
• Tuning for Three-flavors of Anisotropic Clover Fermions with Stout-link Smearing
• Sommerfeld enhancement: general results from field theory diagrams
• Dark Nuclei I: Cosmology and Indirect Detection
• Cosmological Implications of Dark Matter Bound States
• The strong coupling from a nonperturbative determination of the $\Lambda$ parameter in three-flavor QCD
• The bottomonium spectrum at finite temperature from $N_f=2+1$ lattice QCD
• Signatures of Majorana dark matter with t-channel mediators
• Top-philic dark matter within and beyond the WIMP paradigm
• Nuclear Reaction Rates in a Plasma
• Rapid thermal co-annihilation through bound states in QCD
• Analytic three-loop static potential
• Strong CMB Constraint On P-Wave Annihilating Dark Matter
• Dark Matter Sommerfeld-enhanced annihilation and Bound-state decay at finite temperature
• Thermal quarkonium physics in the pseudoscalar channel
• Heavy quark chemical equilibration rate as a transport coefficient
• Constraint on the velocity dependent dark matter annihilation cross section from Fermi-LAT observations of dwarf galaxies
• A Reappraisal on Dark Matter Co-annihilating with a Top/Bottom Partner
• A Sommerfeld Toolbox for Colored Dark Sectors
• Debye screening mass of hot Yang-Mills theory to three-loop order
• p-wave Annihilating Dark Matter from a Decaying Predecessor and the Galactic Center Excess
• On the dispersion of fundamental particles in QCD and N=4 Super Yang-Mills theory

Cited by in corpus (6)

• Dark Matter bound-state formation at higher order: a non-equilibrium quantum field theory approach
• Rapid bound-state formation of Dark Matter in the Early Universe
• Scalar dark matter coannihilating with a coloured fermion
• Bound-state formation, dissociation and decays of darkonium with potential non-relativistic Yukawa theory for scalar and pseudoscalar mediators
• Non-relativistic susceptibility and a dark matter application
• Improved Constraints on Dark Matter Annihilations Around Primordial Black Holes