Combined Partial Wave Analysis for the description of exclusive $p+p \to p + K^+ + \Lambda$ production

TL;DR

This paper employs a partial wave analysis framework to study the exclusive p+p to p+K++Lambda production, aiming to identify contributing waves and determine scattering parameters across multiple datasets.

Contribution

It introduces a combined partial wave analysis approach to analyze exclusive hyperon production and cross-checks scattering length extraction methods.

Findings

Identification of production waves depending on quantum numbers.

Determination of total cross sections for the process.

Validation of scattering length extraction methods.

Abstract

The production of p K+ {\Lambda} in elementary p + p collision was investigated using the Bonn Gatchina Partial Wave Analysis framework. This approach allows the determination of possible participating production wave depending on the quantum numbers of the system. For the analysis seven data samples, measured at different detectors and beam energies, were used.For the extraction of the p{\Lambda} scattering length a cross check with established methods is required. Furthermore the total cross section of the production process is needed to be determined to extra cross section for the separate waves. Both methods are described in this work.