Dark Nuclei in the Universe – Cancelled
Date:
15 Jan, 2019 (Tue)
Time:
2:00 pm
Location:
Room 603, Chow Yei Ching Building

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Speaker

Dr. Andrea Tesi
National Institute for Nuclear Physics
Italy

Abstract

A cornerstone of our understanding of the Universe is the epoch of Big Bang Nucleosynthesis, the period where light elements (Hydrogen isotopes and Helium) were produced from the primordial plasma. In models where the Dark Matter has properties similar to the visible (ordinary) matter, it is also possible to have a primordial phase of formation of Dark Nuclei. The dark nucleosynthesis is analogous to the formation of Helium and requires as a first step the formation of dark deuterium (the analog of the Hydrogen isotope). We compute this process from first principles, using a non-relativistic quantum mechanics formalism. We find that, for nucleon masses in the TeV range, Dark Matter subject to electro-weak forces can form a significant fraction of dark deuterium. Formation of dark nuclei can also lead to monochromatic photon lines in indirect detection, that are in the range of present and future gamma rays telescopes.

Biography of the speaker:

I was born in 1986 in Italy. I have got bachelor and master degrees in physics from the University of Florence. In the fall of 2011 I went to Pisa, where, after three years, I obtained the PhD in theoretical physics at the Scuola Normale Superiore. In the fall of 2014 I flew to the States, and started a postdoc position at the University of Chicago. Since September 2017 I am based in Florence at the Istituto Nazionale di Fisica Nucleare.

 

All are welcome.


Organizer

Professor G. Chesi

Most seminars are open to the general public, free of charge, unless otherwise stated. Registration is not required. Arrangement for car parking facilities on campus please contact us for details.

For enquiries, please contact:
Department of Electrical and Electronic Engineering,
Room 601, Chow Yei Ching Building,
Pokfulam Road, Hong Kong
Tel: (852) 2859 7093
Email: seminar@eee.hku.hk