precision studies of low-scale leptogenesis; electroweak phase transition; tests of thermal field theory in hot QCD; particle production rates in the early universe; new approaches to dark matter computations
Ghiglieri J., Laine M. (2022), Smooth interpolation between thermal Born and LPM rates, in Journal of High Energy Physics
, 2022(1), 173-173.
Jackson G., Laine M. (2021), Efficient numerical integration of thermal interaction rates, in Journal of High Energy Physics
, 2021(9), 125-125.
Arina Chiara, Hajer Jan, Klose Philipp (2021), Portal Effective Theories. A framework for the model independent description of light hidden sector interactions, in Journal of High Energy Physics
, 2021(9), 63-63.
Laine M. (2021), 1-loop matching of a thermal Lorentz force, in Journal of High Energy Physics
, 2021(6), 139-139.
Laine M., Procacci S. (2021), Minimal warm inflation with complete medium response, in Journal of Cosmology and Astroparticle Physics
, 2021(06), 031-031.
Bouttefeux A., Laine M. (2020), Mass-suppressed effects in heavy quark diffusion, in Journal of High Energy Physics
, 2020(12), 150-150.
Ghiglieri J., Jackson G., Laine M., Zhu Y. (2020), Gravitational wave background from Standard Model physics: complete leading order, in Journal of High Energy Physics
, 2020(7), 92-92.
Ghiglieri J., Laine M. (2020), Sterile neutrino dark matter via coinciding resonances, in Journal of Cosmology and Astroparticle Physics
, 2020(07), 012-012.
Laine M., Schicho P., Schröder Y. (2020), A QCD Debye mass in a broad temperature range, in Physical Review D
, 101(2), 023532-023532.
Jackson G., Laine M. (2020), A thermal neutrino interaction rate at NLO, in Nuclear Physics B
, 950, 114870-114870.
Jackson G. (2019), Two-loop thermal spectral functions with general kinematics, in Physical Review D
, 100(11), 116019-116019.
Jackson G., Laine M. (2019), Testing thermal photon and dilepton rates, in Journal of High Energy Physics
, 2019(11), 144-144.
Within its remaining operation period of 15 years or so, the Large Hadron Collider (LHC) at CERN should substantially clarify the dynamics of weak interactions. Whatever the experimental findings, they have implications for our understanding of cosmology. If it is further confirmed that weak interactions are accurately described by the Standard Model, theoretical explanations for the cosmological Dark Matter and Baryon Asymmetry mysteries need to be sought from other interactions, for example from those in the neutrino sector. If, on the other hand, physics Beyond the Standard Model is discovered in the weak sector, there is a distinct possibility that the Early Universe underwent a phase transition at a temperature of about 100 GeV, leaving the observed Baryon Asymmetry as a remnant, and possibly also producing an observable Gravitational Wave signal. The purpose of this project is to develop up-to-date theoretical tools for studying the cosmology of such theories, and thereby prepare the ground for a quantitative explanation of the observed Universe in terms of empirically verifiable laws of nature.