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SUMMARY:Dark matter and Matter-Antimatter asymmetry in the Universe as two
  sides of the same coin
DTSTART:20190812T140000
DTEND:20190812T153000
DTSTAMP:20260428T094536Z
UID:93d68e2f904d7bba132d537e75b092ac1fc3dc3e162893040fbc4ff3
CATEGORIES:Conferences - Seminars
DESCRIPTION:Prof. Ariel Zhitnitsky (University of British Columbia)\nIn th
 is talk\, in Lausanne\, the world centre on baryogenesis\, I want to discu
 ss an alternative scenario when the baryogenesis is replaced by a charge s
 eparation process in which the global baryon number of the Universe remain
 s zero. In this model the unobserved antibaryons come to comprise the dark
  matter in the form of dense  nuggets. This  model offers a very natural
   explanation of  few   (naively unrelated) problems   in cosmology: t
 he observed relation $\\Omega_{\\rm DM}\\sim\\Omega_{\\rm visible}$\, the 
 observed asymmetry between matter and antimatter in the Universe\, known a
 s the ``baryogenesis" problem\,  the so called "Solar Corona Mystery" to 
 name just a few.  In this framework\, both types of matter (dark and visi
 ble) have the same QCD origin\, form at the same QCD epoch\, and both prop
 ortional to one and the same dimensional parameter of the system\, $\\Lamb
 da_{\\rm QCD}$\, which  explains how the two\, naively distinct\,  probl
 ems could be  intimately related\, and could be solved simultaneously wit
 hin the same framework.  The 80 years old "Solar Corona Mystery" also fin
 ds its natural resolution  in this framework. In this mechanism there is 
 a fundamentally new mechanism for  the axion production with drastically 
 different spectral properties. \n\n Few recent papers on the subject cov
 ering formation mechanism at the QCD transition\, the "Solar Corona Myster
 y" and the axions: \n \n\n1. ``Axion quark nugget dark matter model: Siz
 e distribution and survival pattern"\, PRD 2019\,\n arXiv:1903.05090 [hep
 -ph]\n2. ``Solar Corona Heating by the Axion Quark Nugget Dark Matter\,''\
 , PRD 2018\n arXiv:1805.01897 [astro-ph.SR]\,  written in collaboration 
 with astro people\n3. "New mechanism producing axions and how CAST can dis
 cover them"\, PRD 2018\narxiv:1805.05184[hep-ph]\, written in collaboratio
 n with particle physics experimentalists.\n\nhttps://www.phas.ubc.ca/users
 /ariel-zhitnitsky
LOCATION:BSP 727 https://plan.epfl.ch/?room==BSP%20727
STATUS:CONFIRMED
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