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We discuss the potential of light-nuclei measurements in heavy-ion collisions at intermediate energies for the search of the hypothetical QCD critical end-point. A previous proposal based on neutron density fluctuations has brought appealing experimental evidences of a maximum in the ratio of the number of tritons times protons, divided over deuterons square, O tpd. However these results are difficult to reconcile with the state-of-the-art statistical thermal model predictions. Based on the idea that the QCD critical point can lead to a substantial attraction among nucleons, we propose new light-nuclei multiplicity ratios involving He in which the maximum would be more noticeable. We argue that the experimental extraction is feasible by presenting these ratios formed from actual measurements of total and differential yields at low and high collision energies from FOPI and ALICE experiments, respectively. We also illustrate the possible behavior of these ratios at intermediate energies applying a semiclassical method based on flucton paths using the preliminary NA49 and STAR data for O tpd as input.
kurz und kn@pp news : Nr. 49
(2020)
kurz und kn@pp news : Nr. 48
(2020)
kurz und kn@pp news : Nr. 50
(2020)
Uni-Highlights November 2020 : Einladungen zu ausgewählten Veranstaltungen der Goethe-Universität
(2020)
ISOE-Newsletter 05/2020
(2020)
Wissenskommunikation: Gestaltungsprinzipien für sozial-ökologische Transformationen illustriert +++ Institutsbericht des ISOE: Rückblick auf das Forschungsjahr 2020 +++ Ergebnisse der Forschungsgruppe PlastX: Sozial-ökologische Forschung zu Plastik in der Umwelt +++ Zukunftsforum Ecornet: Wie die Corona-Pandemie die Verkehrswende beeinflusst +++ Nachhaltiger Konsum und soziale Teilhabe: Einblicke in Alltagspraktiken +++ Bekämpfung der Asiatischen Buschmücke: Mit natürlichen Mitteln gegen potenzielle Krankheitsträger +++ Arzneimittelrückstände in der Umwelt: Fragen Sie Ihre Ärztin oder Ihren Apotheker +++ Lehrveranstaltungen des ISOE im Wintersemester +++ Aus dem ISOE: Ökoprofit-Zertifizierung erhalten +++ Termine +++ Publikationen
ISOE-Newsletter 01/2020
(2020)