Abstract
We report on the first measurement of and correlations via the femtoscopy method in + Nb reactions at , studied with the High Acceptance Di-Electron Spectrometer (HADES). By comparing the experimental correlation function to model calculations, a source size for pairs of and a slightly smaller value for pairs of are extracted. Using the geometrical extent of the particle-emitting region, determined experimentally with correlations as reference together with a source function from a transport model, it is possible to study different sets of scattering parameters. The correlation is proven to be sensitive to predicted scattering length values from chiral effective field theory. We demonstrate that the femtoscopy technique can be used as a valid alternative to the analysis of scattering data to study the hyperon-nucleon interaction.
4 More- Received 1 March 2016
DOI:https://doi.org/10.1103/PhysRevC.94.025201
©2016 American Physical Society