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  1. Book: FAIR-PANDA: Entwicklung und Aufbau des elektromagnetischen Kalorimeters (EMC)

    Wiedner, U

    BMBF-Fördervorhaben ; wissenschaftlicher Abschlussbericht ; 01.07.2006 bis 30.06.2009

    2009  

    Title variant Entwicklung und Aufbau des elektromagnetischen Kalorimeters (EMC)
    Institution Institut für Experimentalphysik
    Author's details Ruhr-Universität Bochum, Institut für Experimentalphysik I. Projektleiter: U. Wiedner
    Language German
    Size 17 Bl., Ill., graph. Darst.
    Publishing place Bochum
    Document type Book
    Note Auch als elektronische Ressource vorh. ; Förderkennzeichen BMBF 06 BO 108I. - Literaturverz. ; Unterschiede zwischen dem gedruckten Dokument und der elektronischen Ressource können nicht ausgeschlossen werden
    Database Library catalogue of the German National Library of Science and Technology (TIB), Hannover

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  2. Book: Beschaffung von Kristallen für das PANDA elektromagnetische Kalorimeter

    Wiedner, U

    BMBF-Fördervorhaben 06 BO 0012I ; wissenschaftlicher Abschlussbericht ; 2008 bis 2009

    2009  

    Author's details Ruhr-Universität Bochum, Institut für Experimentalphysik I. Projektleiter: U. Wiedner
    Language German
    Size 14 Bl., Ill., graph. Darst.
    Publishing place Bochum
    Document type Book
    Database Library catalogue of the German National Library of Science and Technology (TIB), Hannover

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  3. Book ; Online: FAIR-PANDA: Entwicklung und Aufbau des elektromagnetischen Kalorimeters (EMC)

    Wiedner, U

    BMBF-Fördervorhaben ; wissenschaftlicher Abschlussbericht ; 01.07.2006 bis 30.06.2009

    2009  

    Title variant Entwicklung und Aufbau des elektromagnetischen Kalorimeters (EMC)
    Institution Institut für Experimentalphysik
    Author's details Ruhr-Universität Bochum, Institut für Experimentalphysik I. Projektleiter: U. Wiedner
    Language German
    Size Online-Ressource (17 S., 2,42 MB), Ill., graph. Darst.
    Publisher Technische Informationsbibliothek u. Universitätsbibliothek
    Publishing place Hannover ; Bochum
    Document type Book ; Online
    Note Auch als elektronische Ressource vorh. ; Auch als gedr. Ausg. vorhanden ; Förderkennzeichen BMBF 06 BO 108I. - Literaturverz. ; Unterschiede zwischen dem gedruckten Dokument und der elektronischen Ressource können nicht ausgeschlossen werden
    Database Library catalogue of the German National Library of Science and Technology (TIB), Hannover

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  4. Book ; Online: Investigation of the Lightest Hybrid Meson Candidate with a Coupled-Channel Analysis of $\bar{p}p$-, $\pi^- p$- and $\pi\pi$-Data

    Kopf, B. / Albrecht, M. / Koch, H. / Küßner, M. / Pychy, J. / Qin, X. / Wiedner, U.

    2020  

    Abstract: A sophisticated coupled-channel analysis is presented that combines different processes: the channels $\pi^0\pi^0\eta$, $\pi^0\eta\eta$ and $K^+K^-\pi^0$ from $\bar{p}p$ annihilations, the P- and D-wave amplitudes of the $\pi\eta$ and $\pi\eta^\prime$ ... ...

    Abstract A sophisticated coupled-channel analysis is presented that combines different processes: the channels $\pi^0\pi^0\eta$, $\pi^0\eta\eta$ and $K^+K^-\pi^0$ from $\bar{p}p$ annihilations, the P- and D-wave amplitudes of the $\pi\eta$ and $\pi\eta^\prime$ systems produced in $\pi^- p$ scattering, and data from $\pi\pi$-scattering reactions. These processes are represented by the combination of the data sets used in two independent novel analyses published by the Crystal Barrel experiment and by the JPAC group. Based on the new insights from these studies, this paper aims at a better understanding of the spin-exotic $\pi_1$ resonances in the light-meson sector. By utilizing the K-matrix approach and realizing the analyticity via Chew-Mandelstam functions the amplitude of the spin-exotic wave can be well described by a single $\pi_1$ pole for both systems, $\pi\eta$ and $\pi\eta^\prime$. The mass and width of the $\pi_1$-pole are measured to be $(1623 \, \pm \, 47 \, ^{+24}_{-75}\,)\, \mathrm{MeV/c}^2$ and $(455 \, \pm \, 88 \, ^{+144}_{-175}\,)\, \mathrm{MeV}$.

    Comment: 6 pages, 2 figures, 1 table
    Keywords High Energy Physics - Phenomenology ; High Energy Physics - Experiment
    Subject code 551
    Publishing date 2020-08-26
    Publishing country us
    Document type Book ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    Full text online

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  5. Book: FAIR-PANDA: TP1 + TP2: Aufbau des elektromagnetischen Kalorimeters und Software-Entwicklung für PANDA; Hadronen-Spektroskopie mit dem BES III Detektor

    Wiedner, Ulrich

    wissenschaftlicher Abschlussbericht

    2012  

    Author's details Ulrich Wiedner
    Language German
    Size 22 Bl., Ill., graph. Darst.
    Publisher Univ
    Publishing place Bochum
    Document type Book
    Note Förderkennzeichen BMBF 05P09PCFPF [neu] - 06BO9013 [alt]
    Database Library catalogue of the German National Library of Science and Technology (TIB), Hannover

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  6. Book ; Online: Development of the front-end electronics for a cost-effective PET-like detector system

    Oppotsch, Josephine / Böhle, Nadia / Held, Thomas / Fink, Mario / Fritsch, Miriam / Heinsius, Fritz-Herbert / Steinke, Matthias / Wiedner, Ulrich

    2023  

    Abstract: Most detector systems used for positron emission particle tracking (PEPT) are very expensive due to the use of inorganic plastic scintillators combined with a high number of readout electronic channels. This work aims to reduce the overall cost of a PEPT- ...

    Abstract Most detector systems used for positron emission particle tracking (PEPT) are very expensive due to the use of inorganic plastic scintillators combined with a high number of readout electronic channels. This work aims to reduce the overall cost of a PEPT-capable detector system by using large and cost-effective plastic scintillators and developing custom 2 x 2 silicon photomultiplier (SiPM) arrays, preamplifiers, and discriminators. The use of long (20 mm x 20 mm x 1000 mm) plastic scintillator bars read out with photodetectors only at their respective ends allows an overall smaller number of photodetectors and associated readout electronics, which in turn reduces the overall cost of the system. In addition, the development of a custom SiPM array and preamplifier allows a free selection of interconnection and readout, as most commercial producers only offer specific types of interconnections and therefore lack other connections such as serial or hybrid. Thus, several common circuit types for SiPMs and preamplifiers were tested and compared in this work, and it was found that a serial connection implemented in a hybrid interconnection for the SiPMs and an inverting preamplifier based on a high-frequency operational amplifier provided the best results for the proposed detector system. Measured with a Na-22 source, the combination of SiPM array and preamplifier led to a rise time of 3.7 ns and a signal amplitude of 175 mV.

    Comment: Published in Nuclear Instruments and Methods in Physics Research A 1057 (2023) 168767. This manuscript version is made available under the CC-BY-NC-ND 4.0 license
    Keywords Physics - Instrumentation and Detectors ; High Energy Physics - Experiment
    Subject code 621
    Publishing date 2023-06-30
    Publishing country us
    Document type Book ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  7. Article ; Online: Measurement of polarization observables

    Jermann, N / Krusche, B / Metag, V / Afzal, F / Badea, M / Beck, R / Bielefeldt, P / Bieling, J / Biroth, M / Blanke, E / Borisov, N / Bornstein, M / Brinkmann, K-T / Ciupka, S / Crede, V / Dolzhikov, A / Drexler, P / Dutz, H / Elsner, D /
    Fedorov, A / Frommberger, F / Gardner, S / Ghosal, D / Goertz, S / Gorodnov, I / Grüner, M / Hammann, C / Hartmann, J / Hillert, W / Hoffmeister, P / Honisch, C / Jude, T C / Kalischewski, F / Ketzer, B / Klassen, P / Klein, F / Klempt, E / Knaust, J / Kolanus, N / Kreit, J / Krönert, P / Lang, M / Lazarev, A B / Livingston, K / Lutterer, S / Mahlberg, P / Meier, C / Meyer, W / Mitlasoczki, B / Müllers, J / Nanova, M / Neganov, A / Nikonov, K / Noël, J F / Ostrick, M / Ottnad, J / Otto, B / Penman, G / Poller, T / Proft, D / Reicherz, G / Reinartz, N / Richter, L / Runkel, S / Salisbury, B / Sarantsev, A V / Schaab, D / Schmidt, C / Schmieden, H / Schultes, J / Seifen, T / Spieker, K / Stausberg, N / Steinacher, M / Taubert, F / Thiel, A / Thoma, U / Thomas, A / Urban, M / Urff, G / Usov, Y / van Pee, H / Wang, Y C / Wendel, C / Wiedner, U / Wunderlich, Y

    The European physical journal. A, Hadrons and nuclei

    2023  Volume 59, Issue 10, Page(s) 232

    Abstract: The target ... ...

    Abstract The target asymmetry
    Language English
    Publishing date 2023-10-17
    Publishing country France
    Document type Journal Article
    ZDB-ID 1459066-9
    ISSN 1434-601X ; 1434-6001
    ISSN (online) 1434-601X
    ISSN 1434-6001
    DOI 10.1140/epja/s10050-023-01134-0
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: Measurement of the helicity asymmetry

    Gottschall, M / Afzal, F / Anisovich, A V / Bayadilov, D / Beck, R / Bichow, M / Brinkmann, K Th / Crede, V / Dieterle, M / Dietz, F / Dutz, H / Eberhardt, H / Elsner, D / Ewald, R / Fornet-Ponse, K / Friedrich, St / Frommberger, F / Gridnev, A / Grüner, M /
    Gutz, E / Hammann, Ch / Hannappel, J / Hartmann, J / Hillert, W / Hoffmeister, Ph / Honisch, Ch / Jude, T / Kammer, S / Kalinowsky, H / Keshelashvili, I / Klassen, P / Klein, F / Klempt, E / Koop, K / Krusche, B / Kube, M / Lang, M / Lopatin, I / Mahlberg, P / Makonyi, K / Metag, V / Meyer, W / Müller, J / Müllers, J / Nanova, M / Nikonov, V / Novotny, R / Piontek, D / Reicherz, G / Rostomyan, T / Sarantsev, A / Schmidt, Ch / Schmieden, H / Seifen, T / Sokhoyan, V / Spieker, K / Thiel, A / Thoma, U / Urban, M / Pee, H van / Walther, D / Wendel, Ch / Werthmüller, D / Wiedner, U / Wilson, A / Winnebeck, A / Witthauer, L / Wunderlich, Y

    The European physical journal. A, Hadrons and nuclei

    2021  Volume 57, Issue 1, Page(s) 40

    Abstract: A measurement of the double-polarization ... ...

    Abstract A measurement of the double-polarization observable
    Language English
    Publishing date 2021-01-28
    Publishing country France
    Document type Journal Article
    ZDB-ID 1459066-9
    ISSN 1434-601X ; 1434-6001
    ISSN (online) 1434-601X
    ISSN 1434-6001
    DOI 10.1140/epja/s10050-020-00334-2
    Database MEDical Literature Analysis and Retrieval System OnLINE

    Full text online

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  9. Book ; Thesis: Messung des Realteils der isospingeraden Vorwärtsstreuamplitude der Pion-Nukleon Streuung bei 55 MeV als Test der Quantenchromodynamik

    Wiedner, Ulrich

    (KfK ; 4317)

    1987  

    Author's details Ulrich Wiedner
    Series title KfK ; 4317
    Language German
    Size 117 S, Ill., graph. Darst
    Edition Als Ms. vervielfältigt
    Publisher Kernforschungszentrum
    Publishing place Karlsruhe
    Document type Book ; Thesis
    Thesis / German Habilitation thesis Zugl.: Karlsruhe, Univ., Diss., 1987
    Database Library catalogue of the German National Library of Science and Technology (TIB), Hannover

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  10. Book ; Thesis: Messung des Realteils der isospingeraden Vorwärtsstreuamplitude der Pion-Nukleon Streuung bei 55 MeV als Test der Quantenchromodynamik

    Wiedner, Ulrich

    (KfK ; 4317)

    1987  

    Author's details Ulrich Wiedner
    Series title KfK ; 4317
    Language German
    Size 117 S, Ill., graph. Darst
    Edition Als Ms. vervielfältigt
    Publisher Kernforschungszentrum
    Publishing place Karlsruhe
    Document type Book ; Thesis
    Thesis / German Habilitation thesis Zugl.: Karlsruhe, Univ., Diss., 1987
    Database Former special subject collection: coastal and deep sea fishing

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