24.–28. Juni 2024
Kurhaus Wiesbaden
Europe/Berlin Zeitzone

Short-range correlations in asymmetric nuclei investigated at R³B

28.06.2024, 11:00
20m
Kurhaus Wiesbaden

Kurhaus Wiesbaden

Kurhausplatz 1, 65189 Wiesbaden https://www.wiesbaden.de/microsite/kurhaus-en/index.php
Oral presentation Friday morning 2

Sprecher

Andrea Lagni (Commissariat a l'Energie Atomique (CEA) - Centre de Saclay(CEASacley))

Beschreibung

The formation of short-range correlated nucleon-nucleon pairs (SRCs), primarily composed of neutron-proton pairs [1], appears to be a universal feature in atomic nuclei [2]. Interestingly, measurements in electron scattering indicate that protons become significantly more correlated in asymmetric nuclei as a function of neutron excess. This has potential implications for the description of cold dense nuclear matter as for neutron stars. However, available data are limited to stable nuclei which have maximum neutron excess of ~1.6 and, at the same time as they become more neutron-rich, they also become more heavy. To overcome these limitations, we performed a pilot experiment at the R³B setup at GSI-FAIR [3] as part of the FAIR Phase-0 experimental program to measure SRC in the most neutron-rich nucleus yet, 16C. We employ hard proton knockout reactions in inverse kinematics of 16C beam at 1.25 GeV/nucleon, as well as 12C beam as reference, to study SRC behavior. In this talk, I will discuss preliminary results of SRC behavior in neutron-rich nuclei and prospects for the follow-up research program at FAIR.


[1] R. Subedi, R. Shneor, Science, 1156675, 2008.
[2] M. Duer et al. (CLAS Collaboration), Nature, 560:617, 2018.
[3]https://www.gsi.de/work/forschung/nustarenna/nustarenna_divisions/kernreaktionen/activities/r3b.

Collaboration R³B Collaboration

Hauptautor

Andrea Lagni (Commissariat a l'Energie Atomique (CEA) - Centre de Saclay(CEASacley))

Co-Autoren

Hang Qi (MIT) Manuel Xarepe (Laboratório de Instrumentação e Física Experimental de Partí(LIP-Coimbra)) Enis Lorenz (TU Darmstadt)

Präsentationsmaterialien

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