SMuK 2023 – wissenschaftliches Programm

Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe

HK: Fachverband Physik der Hadronen und Kerne

HK 74: Poster

HK 74.22: Poster

Donnerstag, 23. März 2023, 17:30–19:00, HSZ EG

Studying the strong interactions in proton-deuteron at LHC — •Bhawani Singh for the ALICE Germany collaboration — TUM, Munich Germany

In the journey to explore the strong interaction among hadrons, ALICE has for the first time extended its femtoscopic studies to nuclei. The large data sample of high-multiplicity pp collisions at √s = 13 TeV allows the measurement of the proton-deuteron (p-d) momentum correlations. The femtoscopic study of such systems opens the door to investigate the interaction in three-body systems as well as formation mechanism of the light nuclei in hadron-hadron collisions. In this contribution, the measured momentum correlation function for p-d is presented. The measured p-d correlation shows a shallow depletion at low relative momenta while the model calculation which assumes the interaction of two point-like particles shows a clear discrepancy with respect to the data. This discrepancy can be resolved by employing a full three body wave function that accounts for the internal structure of the deuteron including all relevant partial waves and quantum statistical effects. This demonstrates that the study of correlations among light nuclei provides access to the details of the many-body system’s wave function at the LHC. Funded by BMBF Verbundforschung (05P21WOCA1 ALICE).