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Production and decays of hyperons in p+p reactions measured with HADES

2024
journal article
conference proceedings
10.1051/epjconf/202429105008
Journal
EPJ Web of Conferences
Author
Sumara Konrad
Institution
HADES Collaboration
Volume
291
Article ID
05008
ISSN
2101-6275
eISSN
2100-014X
Language
English
Journal language
English
Abstract in English

Preliminary results of inclusive +(1385) production in p + p reactions at E = 4.5 GeV and Λ(1520) in p + p and p + Nb at E = 3.5 GeV are presented. Both measurements were performed by the HADES ("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 Λ(1520) → Λ and (1385) → Λ. 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 (1385) and Λ(1520), and allowed for the extraction of parameters of the relativistic Breit-Wigner distributions.

Conference
17th International Workshop on Meson Physics
Conference short name
MESON 2023
Conference start date
2023-06-22
End date conference
2023-06-27
Conference city
Kraków
Conference country
Polska
Conference type
international
Affiliation
Szkoła Doktorska Nauk Ścisłych i Przyrodniczych
dc.abstract.enPreliminary results of inclusive $\Sigma$+(1385) production in p + p reactions at E$_{beam}$ = 4.5 GeV and Λ(1520) in p + p and p + Nb at E$_{beam}$ = 3.5 GeV are presented. Both measurements were performed by the HADES ("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 Λ(1520) → Λ$\pi ^{+} \pi ^{-}$ and $\Sigma ^{+}$ (1385) → Λ$\pi ^{+}$. 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 Λ(1520), and allowed for the extraction of parameters of the relativistic Breit-Wigner distributions.
dc.affiliationSzkoła Doktorska Nauk Ścisłych i Przyrodniczych
dc.conference17th International Workshop on Meson Physics
dc.conference.cityKraków
dc.conference.countryPolska
dc.conference.datefinish2023-06-27
dc.conference.datestart2023-06-22
dc.conference.seriesInternational Workshop on Meson Physics
dc.conference.seriesshortcutMESON
dc.conference.seriesweblinkhttps://indico.meson.if.uj.edu.pl/event/3/
dc.conference.shortcutMESON 2023
dc.conference.weblinkhttps://indico.meson.if.uj.edu.pl/event/3/
dc.contributor.authorSumara, Konrad - 259309
dc.contributor.institutionHADES Collaboration
dc.date.accessioned2024-11-21T11:54:40Z
dc.date.available2024-11-21T11:54:40Z
dc.date.createdat2024-11-14T11:48:35Zen
dc.date.issued2024
dc.date.openaccess0
dc.description.accesstimew momencie opublikowania
dc.description.conftypeinternational
dc.description.versionostateczna wersja wydawcy
dc.description.volume291
dc.identifier.articleid05008
dc.identifier.doi10.1051/epjconf/202429105008
dc.identifier.eissn2100-014X
dc.identifier.issn2101-6275
dc.identifier.urihttps://ruj.uj.edu.pl/handle/item/472112
dc.languageeng
dc.language.containereng
dc.rightsUdzielam licencji. Uznanie autorstwa 4.0 Międzynarodowa
dc.rights.licenceCC-BY
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/legalcode.pl
dc.share.typeotwarte czasopismo
dc.subtypeConferenceProceedings
dc.titleProduction and decays of hyperons in p+p reactions measured with HADES
dc.title.journalEPJ Web of Conferences
dc.typeJournalArticle
dspace.entity.typePublicationen
dc.abstract.en
Preliminary results of inclusive $\Sigma$+(1385) production in p + p reactions at E$_{beam}$ = 4.5 GeV and Λ(1520) in p + p and p + Nb at E$_{beam}$ = 3.5 GeV are presented. Both measurements were performed by the HADES ("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 Λ(1520) → Λ$\pi ^{+} \pi ^{-}$ and $\Sigma ^{+}$ (1385) → Λ$\pi ^{+}$. 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 Λ(1520), and allowed for the extraction of parameters of the relativistic Breit-Wigner distributions.
dc.affiliation
Szkoła Doktorska Nauk Ścisłych i Przyrodniczych
dc.conference
17th International Workshop on Meson Physics
dc.conference.city
Kraków
dc.conference.country
Polska
dc.conference.datefinish
2023-06-27
dc.conference.datestart
2023-06-22
dc.conference.series
International Workshop on Meson Physics
dc.conference.seriesshortcut
MESON
dc.conference.seriesweblink
https://indico.meson.if.uj.edu.pl/event/3/
dc.conference.shortcut
MESON 2023
dc.conference.weblink
https://indico.meson.if.uj.edu.pl/event/3/
dc.contributor.author
Sumara, Konrad - 259309
dc.contributor.institution
HADES Collaboration
dc.date.accessioned
2024-11-21T11:54:40Z
dc.date.available
2024-11-21T11:54:40Z
dc.date.createdaten
2024-11-14T11:48:35Z
dc.date.issued
2024
dc.date.openaccess
0
dc.description.accesstime
w momencie opublikowania
dc.description.conftype
international
dc.description.version
ostateczna wersja wydawcy
dc.description.volume
291
dc.identifier.articleid
05008
dc.identifier.doi
10.1051/epjconf/202429105008
dc.identifier.eissn
2100-014X
dc.identifier.issn
2101-6275
dc.identifier.uri
https://ruj.uj.edu.pl/handle/item/472112
dc.language
eng
dc.language.container
eng
dc.rights
Udzielam licencji. Uznanie autorstwa 4.0 Międzynarodowa
dc.rights.licence
CC-BY
dc.rights.uri
http://creativecommons.org/licenses/by/4.0/legalcode.pl
dc.share.type
otwarte czasopismo
dc.subtype
ConferenceProceedings
dc.title
Production and decays of hyperons in p+p reactions measured with HADES
dc.title.journal
EPJ Web of Conferences
dc.type
JournalArticle
dspace.entity.typeen
Publication
Affiliations
Szkoła Doktorska Nauk Ścisłych i Przyrodniczych
Sumara, Konrad

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