On Thursday 9 November 2023 at the Beyond Standard Model conference in Hurghada, Science Synergy Science Chair Noah Bray-Ali will give a talk showing that dark matter though now cold was once hot.
“For every lump of light energy made in the Big Bang,” Science Chair Bray-Ali says, “we find six lumps of dark matter.” The six-to-one ratio comes from the pattern of light matter known as the Standard Model of particle physics. There are twelve kinds of light matter called quarks and leptons in the Standard Model. But only two types of light energy: left and right.
In the Big Bang, dark matter formed by linking mirror matter to anti-matter. “Each quark and each lepton in the Standard Model has a mirror partner,” Bray-Ali notes. “The Sun, the Earth, and the stars are made of the small bit of matter that was left over when dark matter formed.” In the heat of the Big Bang, however, each kind of dark matter and each type of light energy were made in equal amounts and this gives the observed ratio of dark matter to light energy from which the cooling of dark matter can be calculated and compared to observations.