21–25 Jan 2019
Bormio, Italy
Europe/Berlin timezone

Proton-Xi interaction studied via the femtoscopy method in p-Pb collisions measured by ALICE.

22 Jan 2019, 18:00
20m
Bormio, Italy

Bormio, Italy

Short Contribution Tuesday Afternoon Session

Speaker

Mr Bernhard Hohlweger (PhD Student)

Description

Femtoscopic studies of Baryon-Baryon pairs opens a new era of studying twoparticle interactions at colliders. In particular, small collision systems prove to be particularly well suited to probe the short-ranged strong potentials. Experimental data are compared to local potentials with the newly developed Correlation Analysis Tool using the Schrödinger Equation (CATS). This analysis is based on the data measured by the ALICE Collaboration from pPb collisions at 5.02 TeV and the correlation function is obtained for pairs of protons and $\Xi$s. For the first time, an attractive strong interaction is observed between the two particles is observed with a significance of more than 3$\sigma$. Lattice calculations by the HAL QCD to model the latter are validated and are used to explore the implications of including the newly found attractive p-$\Xi$ interaction in the description of neutron stars.

Primary author

Mr Bernhard Hohlweger (PhD Student)

Presentation materials