Lattice QCD for Cosmology

• DOI: 10.48550/arxiv.1606.07494
• Publication Date: 2016-01-01
• Authors: Sz. Borsányi; Z. Fodor; K.‐H. Kampert; S. D. Katz; T. Kawanai; Tamás G. Kovács; Simon Mages; Attila Pásztor; Ferenc Pittler; Javier Redondo; Andreas Ringwald; K. K. Szabó
• Keywords: High Energy Physics - Phenomenology; High Energy Physics - Lattice; Cosmology and Nongalactic Astrophysics (astro-ph.CO); High Energy Physics - Phenomenology (hep-ph); 0103 physical sciences; High Energy Physics - Lattice (hep-lat); FOS: Physical sciences; 7. Clean energy; 01 natural sciences; Astrophysics - Cosmology and Nongalactic Astrophysics

We present a full result for the equation of state (EoS) in 2+1+1 (up/down, strange and charm quarks are present) flavour lattice QCD. extend this analysis give 2+1+1+1 In order to describe evolution universe from temperatures several hundreds GeV tens MeV we also include known effects electroweak theory effective degree freedoms. As another application QCD calculate topological susceptibility (chi) up few temperature region. These two results, EoS chi, can be used predict dark matter axion's mass post-inflation scenario and/or relationship between universal axionic angle, which acts as initial condition our universe.