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@INPROCEEDINGS{Sumara:361803,
author = {Sumara, Konrad},
title = {{P}roduction and decays of hyperons in p+p reactions
measured with {HADES}},
journal = {The European physical journal / Web of Conferences},
volume = {291},
issn = {2100-014X},
address = {Les Ulis},
publisher = {EDP Sciences},
reportid = {GSI-2025-01008},
pages = {05008 -},
year = {2024},
abstract = {Preliminary results of inclusive $\sigma^{+}(1385)$
production in $p + p$ reactions at $E_{\text{beam}} = 4.5 \
\text{GeV}$ and $\Lambda(1520)$ in $p + p$ and $p +
\text{Nb}$ at $E_{\text{beam}} = 3.5 \ \text{GeV}$ are
presented. Both measurements were performed by the HADES
(\emph{High Acceptance Di-Electron Spectrometer}) experiment
at FAIR/GSI. The analysis consisted of multiple steps
including track reconstruction, particle identification and
the reconstruction of the hyperon signal from their hadronic
decays $\Lambda(1520) \rightarrow \Lambda \pi^{+} \pi^{-}$
and $\sigma^{+}(1385) \rightarrow \Lambda \pi^{+}$. The main
part of the analysis, which is signal/background
classification, was performed utilizing Machine Learning
methods. The employed method relied on a data-driven
approach called ``Classification Without Labels'' and the
Multilayer Perceptron style Artificial Neural Networks. The
analysis resulted in reconstruction of the resonance
distributions for both $\sigma^{+}(1385)$ and
$\Lambda(1520)$, and allowed for the extraction of
parameters of the relativistic Breit-Wigner
distributions.\end{abstract}},
month = {Jun},
date = {2023-06-17},
organization = {17th International Workshop on Meson
Physics, Krakow (French Polynesia), 17
Jun 2023 - 22 Jun 2023},
ddc = {530},
experiment = {EXP:(DE-Ds200)FAIR-Facility},
typ = {PUB:(DE-HGF)16 / PUB:(DE-HGF)8},
doi = {10.1051/epjconf/202429105008},
url = {https://repository.gsi.de/record/361803},
}