Inclusive dielectron spectra in p+p collisions at 3.5 GeV kinetic beam energy

2012
journal article
article
66
cris.lastimport.wos2024-04-09T20:36:25Z
dc.abstract.enWe present the inclusive invariant mass, transverse momentum and rapidity distributions of dielectrons ($e^{+}e^{-}$ pairs) in p+p interactions at 3.5GeV beam kinetic energy. In the vector meson mass region, a distinct peak corresponding to direct $\omega$ decays is reconstructed with a 2% mass resolution. The data is compared to predictions from three model calculations. Due to the large acceptance of the HADES apparatus for $e^{+}e^{-}$ invariant masses above 0.2 GeV/c$^{2}$ and for transverse pair momenta $p_{t}$ < 1 GeV/c, acceptance corrections are, to a large extent, model independent. This allows us to extract from dielectron data for the first time at this energy the inclusive production cross-sections for light vector mesons. Inclusive production cross-sections for $\pi^{\circ}$ and $\eta$ mesons are also reported. The obtained results will serve as an important reference for the study of vector meson production in proton-nucleus and heavy-ion collisions. Furthermore, using this data, an improved value for the upper bound of the branching ratio for direct \eta decays into the electron-positron channel is obtained.pl
dc.affiliationWydział Fizyki, Astronomii i Informatyki Stosowanej : Instytut Fizyki im. Mariana Smoluchowskiegopl
dc.contributor.authorAgakishiev, G.pl
dc.contributor.authorBałanda, Andrzej - 100073 pl
dc.contributor.authorBelver, D.pl
dc.contributor.authorBelyaev, A.pl
dc.contributor.authorBlanco, A.pl
dc.contributor.authorBöhmer, M.pl
dc.contributor.authorBoyard, J. L.pl
dc.contributor.authorCabanelas, P.pl
dc.contributor.authorCastro, E.pl
dc.contributor.authorChen, J. C.pl
dc.contributor.authorChernenko, S.pl
dc.contributor.authorChrist, T.pl
dc.contributor.authorDestefanis, M.pl
dc.contributor.authorDohrmann, F.pl
dc.contributor.authorDybczak, Adrian - 186395 pl
dc.contributor.authorEpple, E.pl
dc.contributor.authorFabbietti, L.pl
dc.contributor.authorFateev, O.pl
dc.contributor.authorFinocchiaro, P.pl
dc.contributor.authorFonte, P.pl
dc.contributor.authorFriese, J.pl
dc.contributor.authorFröhlich, I.pl
dc.contributor.authorGalatyuk, T.pl
dc.contributor.authorGarzón, J. A.pl
dc.contributor.authorGernhäuser, R.pl
dc.contributor.authorGilardi, C.pl
dc.contributor.authorGolubeva, M.pl
dc.contributor.authorGonzález-Díaz, D.pl
dc.contributor.authorGuber, F.pl
dc.contributor.authorGumberidze, M.pl
dc.contributor.authorHeinz, T.pl
dc.contributor.authorHennino, T.pl
dc.contributor.authorHolzmann, R.pl
dc.contributor.authorIerusalimov, A.pl
dc.contributor.authorIori, I.pl
dc.contributor.authorIvashkin, A.pl
dc.contributor.authorJurkovic, M.pl
dc.contributor.authorKämpfer, B.pl
dc.contributor.authorKanaki, K.pl
dc.contributor.authorKaravicheva, T.pl
dc.contributor.authorKoenig, I.pl
dc.contributor.authorKoenig, W.pl
dc.contributor.authorKolb, B. W.pl
dc.contributor.authorKotte, R.pl
dc.contributor.authorKrása, A.pl
dc.contributor.authorKrizek, F.pl
dc.contributor.authorKrücken, R.pl
dc.contributor.authorKuc, Hubert - 184961 pl
dc.contributor.authorKühn, W.pl
dc.contributor.authorKugler, A.pl
dc.contributor.authorKurepin, A.pl
dc.contributor.authorLalik, R.pl
dc.contributor.authorLang, S.pl
dc.contributor.authorLange, J. S.pl
dc.contributor.authorLapidus, K.pl
dc.contributor.authorLiu, T.pl
dc.contributor.authorLopes, L.pl
dc.contributor.authorLorenz, M.pl
dc.contributor.authorMaier, L.pl
dc.contributor.authorMangiarotti, A.pl
dc.contributor.authorMarkert, J.pl
dc.contributor.authorMetag, V.pl
dc.contributor.authorMichalska, Beata - 160225 pl
dc.contributor.authorMichel, J.pl
dc.contributor.authorMorinière, E.pl
dc.contributor.authorMousa, J.pl
dc.contributor.authorMüntz, C.pl
dc.contributor.authorNaumann, L.pl
dc.contributor.authorOtwinowski, Jacekpl
dc.contributor.authorPachmayer, Y. C.pl
dc.contributor.authorPałka, Marek - 214237 pl
dc.contributor.authorParpottas, Y.pl
dc.contributor.authorPechenov, V.pl
dc.contributor.authorPechenova, O.pl
dc.contributor.authorPietraszko, J.pl
dc.contributor.authorPrzygoda, Witold - 100454 pl
dc.contributor.authorRamstein, B.pl
dc.contributor.authorReshetin, A.pl
dc.contributor.authorRustamov, A.pl
dc.contributor.authorSadovsky, A.pl
dc.contributor.authorSalabura, Piotr - 102313 pl
dc.contributor.authorSchmah, A.pl
dc.contributor.authorSchwab, E.pl
dc.contributor.authorSiebenson, J.pl
dc.contributor.authorSobolev, Yu. G.pl
dc.contributor.authorSpataro, S.pl
dc.contributor.authorSpruck, B.pl
dc.contributor.authorStröbele, H.pl
dc.contributor.authorStroth, J.pl
dc.contributor.authorSturm, C.pl
dc.contributor.authorTarantola, A.pl
dc.contributor.authorTeilab, K.pl
dc.contributor.authorTlusty, P.pl
dc.contributor.authorTraxler, M.pl
dc.contributor.authorTrębacz, Radosławpl
dc.contributor.authorTsertos, H.pl
dc.contributor.authorWagner, V.pl
dc.contributor.authorWeber, M.pl
dc.contributor.authorWendisch, C.pl
dc.contributor.authorWüstenfeld, J.pl
dc.contributor.authorYurevich, S.pl
dc.contributor.authorZanevsky, Y.pl
dc.contributor.institutionHADES Collaborationpl
dc.date.accessioned2016-05-18T13:07:18Z
dc.date.available2016-05-18T13:07:18Z
dc.date.issued2012pl
dc.date.openaccess0
dc.description.accesstimew momencie opublikowania
dc.description.number5pl
dc.description.publication0,7pl
dc.description.versionostateczna wersja wydawcy
dc.description.volume48pl
dc.identifier.articleid64pl
dc.identifier.doi10.1140/epja/i2012-12064-ypl
dc.identifier.eissn1434-601Xpl
dc.identifier.issn1434-6001pl
dc.identifier.projectROD UJ / Ppl
dc.identifier.urihttp://ruj.uj.edu.pl/xmlui/handle/item/26411
dc.languageengpl
dc.language.containerengpl
dc.rightsUdzielam licencji. Uznanie autorstwa 3.0*
dc.rights.licenceCC-BY
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/legalcode*
dc.share.typeinne
dc.subtypeArticlepl
dc.titleInclusive dielectron spectra in p+p collisions at 3.5 GeV kinetic beam energypl
dc.title.journalThe European Physical Journal. A, Hadrons and Nucleipl
dc.typeJournalArticlepl
dspace.entity.typePublication
cris.lastimport.wos
2024-04-09T20:36:25Z
dc.abstract.enpl
We present the inclusive invariant mass, transverse momentum and rapidity distributions of dielectrons ($e^{+}e^{-}$ pairs) in p+p interactions at 3.5GeV beam kinetic energy. In the vector meson mass region, a distinct peak corresponding to direct $\omega$ decays is reconstructed with a 2% mass resolution. The data is compared to predictions from three model calculations. Due to the large acceptance of the HADES apparatus for $e^{+}e^{-}$ invariant masses above 0.2 GeV/c$^{2}$ and for transverse pair momenta $p_{t}$ < 1 GeV/c, acceptance corrections are, to a large extent, model independent. This allows us to extract from dielectron data for the first time at this energy the inclusive production cross-sections for light vector mesons. Inclusive production cross-sections for $\pi^{\circ}$ and $\eta$ mesons are also reported. The obtained results will serve as an important reference for the study of vector meson production in proton-nucleus and heavy-ion collisions. Furthermore, using this data, an improved value for the upper bound of the branching ratio for direct \eta decays into the electron-positron channel is obtained.
dc.affiliationpl
Wydział Fizyki, Astronomii i Informatyki Stosowanej : Instytut Fizyki im. Mariana Smoluchowskiego
dc.contributor.authorpl
Agakishiev, G.
dc.contributor.authorpl
Bałanda, Andrzej - 100073
dc.contributor.authorpl
Belver, D.
dc.contributor.authorpl
Belyaev, A.
dc.contributor.authorpl
Blanco, A.
dc.contributor.authorpl
Böhmer, M.
dc.contributor.authorpl
Boyard, J. L.
dc.contributor.authorpl
Cabanelas, P.
dc.contributor.authorpl
Castro, E.
dc.contributor.authorpl
Chen, J. C.
dc.contributor.authorpl
Chernenko, S.
dc.contributor.authorpl
Christ, T.
dc.contributor.authorpl
Destefanis, M.
dc.contributor.authorpl
Dohrmann, F.
dc.contributor.authorpl
Dybczak, Adrian - 186395
dc.contributor.authorpl
Epple, E.
dc.contributor.authorpl
Fabbietti, L.
dc.contributor.authorpl
Fateev, O.
dc.contributor.authorpl
Finocchiaro, P.
dc.contributor.authorpl
Fonte, P.
dc.contributor.authorpl
Friese, J.
dc.contributor.authorpl
Fröhlich, I.
dc.contributor.authorpl
Galatyuk, T.
dc.contributor.authorpl
Garzón, J. A.
dc.contributor.authorpl
Gernhäuser, R.
dc.contributor.authorpl
Gilardi, C.
dc.contributor.authorpl
Golubeva, M.
dc.contributor.authorpl
González-Díaz, D.
dc.contributor.authorpl
Guber, F.
dc.contributor.authorpl
Gumberidze, M.
dc.contributor.authorpl
Heinz, T.
dc.contributor.authorpl
Hennino, T.
dc.contributor.authorpl
Holzmann, R.
dc.contributor.authorpl
Ierusalimov, A.
dc.contributor.authorpl
Iori, I.
dc.contributor.authorpl
Ivashkin, A.
dc.contributor.authorpl
Jurkovic, M.
dc.contributor.authorpl
Kämpfer, B.
dc.contributor.authorpl
Kanaki, K.
dc.contributor.authorpl
Karavicheva, T.
dc.contributor.authorpl
Koenig, I.
dc.contributor.authorpl
Koenig, W.
dc.contributor.authorpl
Kolb, B. W.
dc.contributor.authorpl
Kotte, R.
dc.contributor.authorpl
Krása, A.
dc.contributor.authorpl
Krizek, F.
dc.contributor.authorpl
Krücken, R.
dc.contributor.authorpl
Kuc, Hubert - 184961
dc.contributor.authorpl
Kühn, W.
dc.contributor.authorpl
Kugler, A.
dc.contributor.authorpl
Kurepin, A.
dc.contributor.authorpl
Lalik, R.
dc.contributor.authorpl
Lang, S.
dc.contributor.authorpl
Lange, J. S.
dc.contributor.authorpl
Lapidus, K.
dc.contributor.authorpl
Liu, T.
dc.contributor.authorpl
Lopes, L.
dc.contributor.authorpl
Lorenz, M.
dc.contributor.authorpl
Maier, L.
dc.contributor.authorpl
Mangiarotti, A.
dc.contributor.authorpl
Markert, J.
dc.contributor.authorpl
Metag, V.
dc.contributor.authorpl
Michalska, Beata - 160225
dc.contributor.authorpl
Michel, J.
dc.contributor.authorpl
Morinière, E.
dc.contributor.authorpl
Mousa, J.
dc.contributor.authorpl
Müntz, C.
dc.contributor.authorpl
Naumann, L.
dc.contributor.authorpl
Otwinowski, Jacek
dc.contributor.authorpl
Pachmayer, Y. C.
dc.contributor.authorpl
Pałka, Marek - 214237
dc.contributor.authorpl
Parpottas, Y.
dc.contributor.authorpl
Pechenov, V.
dc.contributor.authorpl
Pechenova, O.
dc.contributor.authorpl
Pietraszko, J.
dc.contributor.authorpl
Przygoda, Witold - 100454
dc.contributor.authorpl
Ramstein, B.
dc.contributor.authorpl
Reshetin, A.
dc.contributor.authorpl
Rustamov, A.
dc.contributor.authorpl
Sadovsky, A.
dc.contributor.authorpl
Salabura, Piotr - 102313
dc.contributor.authorpl
Schmah, A.
dc.contributor.authorpl
Schwab, E.
dc.contributor.authorpl
Siebenson, J.
dc.contributor.authorpl
Sobolev, Yu. G.
dc.contributor.authorpl
Spataro, S.
dc.contributor.authorpl
Spruck, B.
dc.contributor.authorpl
Ströbele, H.
dc.contributor.authorpl
Stroth, J.
dc.contributor.authorpl
Sturm, C.
dc.contributor.authorpl
Tarantola, A.
dc.contributor.authorpl
Teilab, K.
dc.contributor.authorpl
Tlusty, P.
dc.contributor.authorpl
Traxler, M.
dc.contributor.authorpl
Trębacz, Radosław
dc.contributor.authorpl
Tsertos, H.
dc.contributor.authorpl
Wagner, V.
dc.contributor.authorpl
Weber, M.
dc.contributor.authorpl
Wendisch, C.
dc.contributor.authorpl
Wüstenfeld, J.
dc.contributor.authorpl
Yurevich, S.
dc.contributor.authorpl
Zanevsky, Y.
dc.contributor.institutionpl
HADES Collaboration
dc.date.accessioned
2016-05-18T13:07:18Z
dc.date.available
2016-05-18T13:07:18Z
dc.date.issuedpl
2012
dc.date.openaccess
0
dc.description.accesstime
w momencie opublikowania
dc.description.numberpl
5
dc.description.publicationpl
0,7
dc.description.version
ostateczna wersja wydawcy
dc.description.volumepl
48
dc.identifier.articleidpl
64
dc.identifier.doipl
10.1140/epja/i2012-12064-y
dc.identifier.eissnpl
1434-601X
dc.identifier.issnpl
1434-6001
dc.identifier.projectpl
ROD UJ / P
dc.identifier.uri
http://ruj.uj.edu.pl/xmlui/handle/item/26411
dc.languagepl
eng
dc.language.containerpl
eng
dc.rights*
Udzielam licencji. Uznanie autorstwa 3.0
dc.rights.licence
CC-BY
dc.rights.uri*
http://creativecommons.org/licenses/by/3.0/legalcode
dc.share.type
inne
dc.subtypepl
Article
dc.titlepl
Inclusive dielectron spectra in p+p collisions at 3.5 GeV kinetic beam energy
dc.title.journalpl
The European Physical Journal. A, Hadrons and Nuclei
dc.typepl
JournalArticle
dspace.entity.type
Publication
Affiliations

* The migration of download and view statistics prior to the date of April 8, 2024 is in progress.

Views
1
Views per month
Downloads
balanda_dybczak_kuc_michalska_otwinowski_przygoda_salabura_trebacz_et-al_inclusive_dielectron_spectra_2012.pdf
10
balanda_dybczak_kuc_michalska_otwinowski_przygoda_salabura_trebacz_et-al_inclusive_dielectron_spectra_2012.odt
6