7-11 October 2019
Facultad de Ciencias Físicas, Universidad Complutense de Madrid
Europe/Madrid timezone

Influence of the QCD critical point on the nucleon-nucleon potential and nuclear correlations

8 Oct 2019, 10:20
35m
Aula M2 (Facultad de Ciencias Físicas, Universidad Complutense de Madrid)

Aula M2

Facultad de Ciencias Físicas, Universidad Complutense de Madrid

Plaza de Ciencias, 1 Ciudad Universitaria 28040 Madrid, Spain

Speaker

Dr Juan Torres-Rincon (Goethe University Frankfurt)

Description

The scalar-isoscalar mode of QCD is expected to become very light close to the second-order chiral critical point. This mode is the main responsible for the attractive part of the nucleon-nucleon potential at distances of 1-2 fm. Therefore, a strong long-range attraction among nucleons is predicted to develop close to the QCD critical point. Using the Walecka-Serot model for the NN interaction we study the effects of the critical mode in a system of nucleons and mesons using a molecular dynamics code, complemented by a Langevin dynamics for the freeze-out conditions of heavy-ion collisions. Working beyond mean-field level, we observe strong nucleon correlations which might lead to baryon clustering. We propose that light-nuclei formation, together with an enhancement of the proton distribution cumulants can signal the presence of the QCD critical point.

Primary author

Dr Juan Torres-Rincon (Goethe University Frankfurt)

Co-author

Presentation Materials