Selected highlights of the production of light (anti-)(hyper-)nuclei in ultra-relativistic heavy-ion collisions

  • The production of light (anti-)nuclei and (anti-)hypernuclei in ultra-relativistic heavy-ion collisions, but also in more elementary collisions as proton–proton and proton–nucleus collisions, became recently a focus of interest. In particular, the fact that these objects are all loosely bound compared to the temperature and energies, e.g. the kinetic energies involved, is often stressed out to be special for their production. The binding energies of these (anti-)nuclei is between 130 keV (Λ separation energy in the hypertriton) and about 8 MeV per nucleon. Whereas the connected temperatures are of the order of 100 to 160 MeV. This lead to some difficulties in the interpretation of the usually discussed production models, i.e. coalescence and statistical-thermal models, as will be discussed here. In this brief review we discuss selected highlights of the production of light (anti-)nuclei, such as (anti-)deuteron, (anti-)helium and (anti-)alpha nuclei. In addition, we will discuss the current status of the highly debated lifetime of the (anti-)hypertriton and connected measurements and model results.

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Author:Benjamin DönigusGND
Parent Title (English):The European physical journal. A
Place of publication:Berlin ; Heidelberg
Document Type:Article
Date of Publication (online):2020/11/04
Date of first Publication:2020/11/04
Publishing Institution:Universitätsbibliothek Johann Christian Senckenberg
Release Date:2023/03/21
Issue:11, art. 280
Article Number:280
Page Number:17
First Page:1
Last Page:17
Open Access funding enabled and organized by Projekt DEAL.
Dewey Decimal Classification:5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik
Licence (German):License LogoCreative Commons - CC BY - Namensnennung 4.0 International