17–22 Jun 2018
DESY in Hamburg
Europe/Berlin timezone

Cosmological axion field and quark nugget dark matter model

20 Jun 2018, 13:50
20m
Auditorium (DESY in Hamburg)

Auditorium

DESY in Hamburg

Notkestraße 85 22607 Hamburg Germany
Presentation Plenary presentations

Speaker

Prof. Ariel Zhitnitsky (University of British Columbia)

Description

I overview the dark matter model offering a very natural explanation of 3 (naively unrelated) problems in cosmology: the observed relation $\Omega_{\rm DM}\sim\Omega_{\rm visible}$, the observed asymmetry between matter and antimatter in the Universe, known as the ``baryogenesis" problem, and also, the so called "Solar Corona Mystery". In this framework, both types of matter (dark and visible) have the same QCD origin, form at the same QCD epoch, and both proportional to one and the same dimensional parameter of the system, $\Lambda_{\rm QCD}$, which explains how the two, naively distinct, problems could be intimately related, and could be solved simultaneously within the same framework. The 80 years old "Solar Corona Mystery" also finds its natural resolution in this framework. The talk is based on two recent preprints: 1. ``Solar Corona Heating by the Axion Quark Nugget Dark Matter,'' arXiv:1805.01897 [astro-ph.SR], written in collaboration with astro people 2. "New mechanism producing axions and how CAST can discover them" arxiv:1805.05184[hep-ph], written in collaboration with particle physics experimentalists.

Primary author

Prof. Ariel Zhitnitsky (University of British Columbia)

Presentation materials