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Gießen 2024 – wissenschaftliches Programm

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HK: Fachverband Physik der Hadronen und Kerne

HK 72: Poster

HK 72.43: Poster

Donnerstag, 14. März 2024, 17:15–18:45, HBR 14: Foyer

Source Size Measurement in Jets — •Lars Jörgensen, Laura Fabbietti, and Maximilian Horst for the ALICE Germany collaboration — Technische Universität München

Antinuclei in cosmic rays could be an indicator for dark matter decay. In order to correctly interpret any future measurement of the flux of antinuclei in our galaxy, the formation mechanism of antinuclei must be understood. The coalescence model aims to describe the formation process on a microscopic level, assuming that nucleons close in phase space are likely to bind together. A powerful tool to test coalescence is the study of nuclear production in jets since their emission is highly collimated and therefore the coalescence condition is likely to be fulfilled. One key parameter in the coalescence model is the baryon emitting source size, which has never been measured in jets to date. The source size is extracted from the momentum correlation function of particle pairs using femtoscopy. In this contribution, perspectives on measurements of the source size in jets performing a femtoscopic analysis on p-p correlations using LHC Run 2 data are shown.

This work is funded by BMBF Verbundforschung (05P21WOCA1 ALICE) and DFG SFB1258.

Keywords: Femtoscopy; Jets; Coalescence; Nuclei; Dark Matter

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