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Tytuł:
Electromagnetic calorimeter for the HADES@FAIR experiment
Autorzy:
Reshetin, A.
Ivashkin, A.
Golubeva, M.
Kardan, B.
Traxler, M.
Hlaváč, S.
Epple, E.
Lisowski, E.
Galatyuk, T.
Lapidus, K.
Czyžycki, W.
Kajetanowic, M.
Tlusty, P.
Blume, C.
Salabura, Piotr
Guber, F.
Sobolev, Y. G.
Kugler, A.
Pietraszko, J.
Svoboda, O.
Fabbietti, L.
Koenig, W.
Rost, A.
Opis:
An electromagnetic calorimeter (ECAL) is being developed to complement the dilepton spectrometer HADES currently operating on the beam of the SIS18 heavy-ion synchrotron at GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt, Germany. The ECAL will allow the HADES@FAIR experiment to measure data on neutral meson production in heavy ion collisions in the energy range of 2–10 AGeV with the beam of the future accelerator SIS100@FAIR. The calorimeter will also improve the electron-hadron separation of the spectrometer, and will be used for the detection of photons from strange resonances in elementary and heavy ion reactions as well. The calorimeter will consist of 978 modules divided into 6 sectors, and it will cover forward angles of $16^{\circ} < \Theta < 45^{\circ}$ and almost full azimuthal angle. Each module consists of a lead glass Cherenkov counter, photomultiplier, HV divider and an optical fiber. A dedicated LED based system being developed to monitor the stability of the calorimeter is discussed. Various prototypes of front-end electronics are presented and the achieved energy and time resolution determined using pulses from a pulse generator and a real detector signal induced by LED pulses and cosmic muons is shown as well.
Dostawca treści:
Repozytorium Uniwersytetu Jagiellońskiego
Artykuł
Tytuł:
Electromagnetic calorimeter for HADES experiment
Autorzy:
Reshetin, A.
Golubeva, M.
Sobolev, Y. G.
Traxler, M.
Guber, F.
Kajetanowicz, Marcin
Linev, S.
Neiser, A.
Kardan, B.
Koenig, W.
Ott, O.
Salabura, Piotr
Fabbietti, L.
Tlusty, P.
Rodríguez-Ramos, P.
Lisowski, E.
Pietraszko, J.
Svoboda, O.
Hlaváč, S.
Pethukov, O.
Korcyl, Grzegorz
Lapidus, K.
Chlad, L.
Galatyuk, T.
Kugler, A.
Rost, A.
Thomas, A.
Otte, O.
Ivashkin, A.
Epple, E.
Opis:
Electromagnetic calorimeter (ECAL) is being developed to complement dilepton spectrometer HADES. ECAL will enable the HADES@FAIR experiment to measure data on neutral meson production in heavy ion collisions at the energy range of 2-10 AGeV on the beam of future accelerator SIS100@FAIR. We will report results of the last beam test with quasi-monoenergetic photons carried out in MAMI facility at Johannes Gutenberg Universität Mainz.
Dostawca treści:
Repozytorium Uniwersytetu Jagiellońskiego
Inne
Tytuł:
Verification of electromagnetic calorimeter concept for the HADES spectrometer
Autorzy:
Koenig, W.
Rodríguez-Ramos, P.
Galatyuk, T.
Pietraszko, J.
Sobolev, Y. G.
Guber, F.
Czyžycki, W.
Otte, P.
Blume, C.
Petukhov
Golubeva, M.
Kardan, B.
Lapidus, K.
Fabbietti, L.
Kajetanowic, M.
Thomas, A.
Lisowski, E.
Linev, S.
Epple, E.
Skott, P.
Kugler, A.
Ott, P.
Reshetin, A.
Salabura, Piotr
Svoboda, O.
Rost, A.
Steffen, O.
Traxler, M.
Tlustý, P.
Ivashkin, A.
Hlaváč, S.
Opis:
The HADES spectrometer currently operating on the beam of SIS18 accelerator in GSI will be moved to a new position in the CBM cave of the future FAIR complex. Electromagnetic calorimeter (ECAL) will enable the HADES@FAIR experiment to measure data on neutral meson production in heavy ion collisions at the energy range of 2-10 A GeVon the beam of the new accelerator SIS100. Calorimeter will be based on 978 massive lead glass modules read out by photomultipliers and a novel front-end electronics. Secondary gamma beam with energies ranging from 81 MeV up to 1399 MeV from MAMI-C Mainz facility was used to verify selected technical solutions. Relative energy resolution was measured using modules with three different types of photomultipliers. Two types of developed front-end electronics as well as energy leakage between neighbouring modules under parallel and declined gamma beams were studied in detail.
Dostawca treści:
Repozytorium Uniwersytetu Jagiellońskiego
Inne
Tytuł:
Resonance production in p+p, p+A and A+A collisions measured with HADES
Autorzy:
Lorenz, M.
Pechenova, O.
Galatyuk, T.
Vasiliev, T.
Markert, J.
Kotte, R.
Golubeva, M.
Yurevich, S.
Huck, P.
Gonzáalez-Díaz, D.
Böhmer, M.
Mangiarotti, A.
Müntz, C.
Siebenson, J.
Kämpfer, B.
Michel, J.
Gill, K.
Harabasz, Szymon
Sturm, C.
Traxler, M.
Ivashkin, A.
Blanco, A.
Garzón, J. A.
Przygoda, Witold
Weber, M.
Krása, A.
Rehnisch, L.
Lebedev, A.
Ladygin, V.
Sadovsky, A.
Pałka, Marek
Pietraszko, J.
Naumann, L.
Blume, C.
Krebs, E.
Ierusalimov, A.
Pechenov, V.
Belver, D.
Rustamov, A.
Fröhlich, I.
Koenig, I.
Stroth, J.
Friese, J.
Münzer, R.
Reshetin, A.
Salabura, Piotr
Schuldes, H.
Kurilkin, P.
Lang, S.
Dritsa, C.
Kolb, B. W.
Maier, L.
Lopes, L.
Holzmann, R.
Ströbele, H.
Guber, F.
Jurkovic, M.
Korcyl, Grzegorz
Höhne, C.
Fonte, P.
Epple, E.
Kugler, A.
Lalik, R.
Kornakov, G.
Kurilkin, A.
Parpottas, Y.
Kurepin, A.
Dybczak, Adrian
Spataroe, S.
Koenig, W.
Wagner, V.
Hennino, T.
Karavicheva, T.
Tsertos, H.
Teilab, K.
Kuc, Hubert
Metag, V.
Scheib, T.
Wendisch, C.
Krizek, F.
Lapidus, K.
Ramstein, B.
Fabbietti, L.
Sobolev, Yu. G.
Tlusty, P.
Behnke, C.
Wüstenfeld, J.
Strzempek, Paweł
Berger-Chen, J. C.
Svoboda, O.
Belyaev, A.
Agakishiev, G.
Zanevsky, Y.
Gumberidze, M.
Tarantola, A.
Cabanelas, P.
Opis:
The knowledge of baryonic resonance properties and production cross sections plays an important role for the extraction and understanding of medium modifications of mesons in hot and/or dense nuclear matter. We present and discuss systematics on dielectron and strangeness production obtained with HADES on p+p, p+A and A+A collisions in the few GeV energy regime with respect to these resonances.
Dostawca treści:
Repozytorium Uniwersytetu Jagiellońskiego
Inne
Tytuł:
Inclusive dielectron spectra in p+p collisions at 3.5 GeV kinetic beam energy
Autorzy:
Lorenz, M.
Chernenko, S.
Iori, I.
Castro, E.
Pechenova, O.
Galatyuk, T.
Mousa, J.
Markert, J.
Lange, J. S.
Kotte, R.
Golubeva, M.
Yurevich, S.
Chen, J. C.
Christ, T.
Böhmer, M.
Mangiarotti, A.
Müntz, C.
Siebenson, J.
Kämpfer, B.
Michel, J.
Sturm, C.
Traxler, M.
Schwab, E.
Ivashkin, A.
Blanco, A.
Garzón, J. A.
Przygoda, Witold
Weber, M.
Krása, A.
Dohrmann, F.
Sadovsky, A.
Pachmayer, Y. C.
Pałka, Marek
Pietraszko, J.
Boyard, J. L.
Naumann, L.
Ierusalimov, A.
Pechenov, V.
Belver, D.
Rustamov, A.
Fröhlich, I.
Koenig, I.
Stroth, J.
Friese, J.
Destefanis, M.
Otwinowski, Jacek
Reshetin, A.
Salabura, Piotr
Gernhäuser, R.
Lang, S.
Kolb, B. W.
Maier, L.
Lopes, L.
Holzmann, R.
Spataro, S.
González-Díaz, D.
Kanaki, K.
Krücken, R.
Ströbele, H.
Guber, F.
Spruck, B.
Jurkovic, M.
Michalska, Beata
Fonte, P.
Heinz, T.
Epple, E.
Kugler, A.
Lalik, R.
Parpottas, Y.
Kurepin, A.
Dybczak, Adrian
Kühn, W.
Morinière, E.
Koenig, W.
Wagner, V.
Hennino, T.
Karavicheva, T.
Fateev, O.
Tsertos, H.
Teilab, K.
Kuc, Hubert
Metag, V.
Wendisch, C.
Krizek, F.
Lapidus, K.
Ramstein, B.
Fabbietti, L.
Sobolev, Yu. G.
Tlusty, P.
Schmah, A.
Gilardi, C.
Wüstenfeld, J.
Bałanda, Andrzej
Belyaev, A.
Liu, T.
Agakishiev, G.
Zanevsky, Y.
Trębacz, Radosław
Finocchiaro, P.
Gumberidze, M.
Tarantola, A.
Cabanelas, P.
Opis:
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.
Dostawca treści:
Repozytorium Uniwersytetu Jagiellońskiego
Artykuł
Wyświetlanie 1-10 z 60

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