In:
EPJ Web of Conferences, EDP Sciences, Vol. 271 ( 2022), p. 04001-
Abstract:
A new hyperon-proton scattering experiment, dubbed J-PARC E40, was performed to measure differential cross sections of the Σ + p , Σ − p elastic scatterings and the Σ − p → Λ n scattering by identifying a lot of Σ particles in the momentum ranging from 0.4 to 0.8 GeV/ c produced by the π ± p → K + Σ ± reactions. We successfully measured the differential cross sections of these three channels with a drastically improved accuracy with a fine angular step. These new data will become important experimental constraints to improve the theories of the two-body baryon-baryon interactions. Following this success, we proposed a new experiment to measure the differential cross sections and spin observables by using a highly polarized Λ beam for providing quantitative information on the Λ N interaction. The results of three Σ p channels and future prospects of the Λ p scattering experiment are described.
Type of Medium:
Online Resource
ISSN:
2100-014X
DOI:
10.1051/epjconf/202227104001
Language:
English
Publisher:
EDP Sciences
Publication Date:
2022
detail.hit.zdb_id:
2595425-8
Permalink