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HK: Fachverband Physik der Hadronen und Kerne

HK 72: Poster

HK 72.45: Poster

Thursday, March 14, 2024, 17:15–18:45, HBR 14: Foyer

Indication of a p-φ bound state from a correlation function analysis — •Emma Chizzali — TUM, Munich, Germany

The existence of a nucleon-φ (N-φ) bound state has been subject of theoretical and experimental investigations for decades, as the interaction is poorly understood and only spin-averaged information is available. Studying the interaction among the constituents, which is characterized by the two spin channels 1/2 and 3/2, can give hints on the possible existence of such a state. Therefore, analyzing the two-particle correlation function between protons and φ mesons measured by ALICE provides an alternative approach to invariant mass spectra. By constraining the spin 3/2 p-φ interaction using newly available lattice calculations by the HAL QCD collaboration it is possible to infer on the interaction in the spin 1/2 for the first time, which is found to be sufficiently strong, to support a p-φ bound state. Funded by IMPRS EPP.

Keywords: strong interaction; bound state