# Determination of N* amplitudes from associated strangeness production in p+p collisions

## TL;DR

This paper determines the energy-dependent production amplitudes of N* resonances in proton-proton collisions by analyzing multiple experimental data sets with partial wave analysis, revealing detailed resonance contributions.

## Contribution

First comprehensive extraction of N* resonance amplitudes across a range of energies using combined data from several experiments with partial wave analysis.

## Key findings

- Determined N* amplitudes for masses 1650-1900 MeV/c².
- Analyzed data from seven exclusive reaction samples.
- Provided insights into resonant and non-resonant contributions.

## Abstract

We present the first determination of the energy-dependent production amplitudes of N$^{*}$ resonances with masses between 1650 MeV/c$^{2}$ and 1900 MeV/c$^{2}$ for an excess energy between $0$ and $600$ MeV. A combined Partial Wave Analysis of seven exclusively reconstructed data samples for the reaction p+p $\rightarrow pK\Lambda$ measured by the COSY-TOF, DISTO, FOPI and HADES collaborations in fixed target experiments at kinetic energies between 2.14 and 3.5 GeV is used to determine the amplitude of the resonant and non-resonant contributions.