Pantheon SEMPARIS Le serveur des séminaires parisiens Paris

Statut Confirmé
Série APC-TH
Domaines gr-qc
Date Mardi 7 Décembre 2021
Heure 14:00
Institut APC
Salle seminar room 483A, contact for Zoom meeting details
Nom de l'orateur Kachelriess
Prenom de l'orateur Michael
Addresse email de l'orateur
Institution de l'orateur NTNU
Titre Antinuclei as probe for exotic physics
Résumé Antideuteron and antihelium nuclei have been proposed as promising detection channels for dark matter because of the low astrophysical backgrounds expected. After a brief review of the current experimental situation, I discuss some of the various flavors of the coalescence model used to describe the formation of light (anti-) nuclei. Then I present results for a newly developed coalescence model based on the Wigner function representations of the produced nuclei states, which includes both the process-dependent size of the formation region of antinuclei, and the momentum correlations of coalescing antinucleons in a semi-classical picture. Therefore this model allows one to calculate in a consistent frame-work the antideuteron and antihelium fluxes both from secondary production and from dark matter annihilations, and I present results for resulting fluxes of these antinuclei. If time permits, I discuss also how antinuclei can be used as a tool to study to the formation of a quark-gluon plasma in accelerator experiments.
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