10–14 Mar 2025
Centro Cultural - UFRGS
America/Sao_Paulo timezone

Proton-deuteron interaction and femtoscopy under the two-body picture

13 Mar 2025, 11:00
30m
Jacarandá Auditorium (Centro Cultural - UFRGS)

Jacarandá Auditorium

Centro Cultural - UFRGS

Rua Eng. Luiz Englert, 333 - Porto Alegre-RS
Seminar (invitees) Morning

Speaker

Juan Torres-Rincon (Universitat de Barcelona)

Description

The Lednický-Lyuboshitz formalism was claimed to inadequately describe the proton-deuteron femtoscopy correlation function measured by the ALICE collaboration in high-multiplicity p+p collisions. This result motivated a full three-particle description involving a composite deuteron, leading to a much better agreement with the experimental data. Building on the two-body approach, we solve the complete wave function of the system by solving the Schrödinger equation with both strong and Coulomb potentials, including also higher partial waves beyond the S-wave. Our results show significant differences compared to the Lednický-Lyuboshitz model, providing a better match to the ALICE measurements and also aligning with recent STAR data in Au+Au collisions for the proton-deuteron system.

Authors

Juan Torres-Rincon (Universitat de Barcelona) Prof. Àngels Ramos (University of Barcelona)

Presentation materials