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72 results on '"Piotr Salabura"'

1. Spheroidal expansion and freeze-out geometry of heavy-ion collisions in the few-GeV energy regime

Author

Szymon Harabasz, Jędrzej Kołaś, Radoslaw Ryblewski, Wojciech Florkowski, Tetyana Galatyuk, Małgorzata Gumberidze, Piotr Salabura, Joachim Stroth, and Hanna Paulina Zbroszczyk

Subjects
Nuclear Theory (nucl-th), Nuclear Theory, FOS: Physical sciences
Abstract

A spheroidal model of the expansion of hadronic matter produced in heavy-ion collisions in the few-GeV energy regime is proposed. It constitutes an extension of the spherically symmetric Siemens-Rasmussen blast-wave model used in our previous works. The spheroidal form of the expansion, combined with a single-freeze-out scenario, allows for a significantly improved description of both the transverse-mass and the rapidity distributions of the produced particles. With the model parameters determined by the hadronic abundances and spectra, we make further predictions of the pion HBT correlation radii that turn out to be in a qualitative agreement with the measured ones. The overall successful description of the data supports the concept of spheroidal symmetry of the produced hadronic systems in this energy range.

Published
2023

2. Production tests of front-end electronics for Straw Tube Trackers in HADES and PANDA experiments at FAIR

Author

Mirosław Firlej, Tomasz Fiutowski, Marek Idzik, Grzegorz Korcyl, Rafał Lalik, Akshay Malige, Aleksandra Molenda, Jakub Moroń, Piotr Salabura, Jerzy Smyrski, and Krzysztof Świentek

Subjects
Instrumentation, Mathematical Physics
Abstract

PASTTREC is an 8-channel readout Application-Specific Integrated Circuit (ASIC) designed for the Straw Tracking System (STS) in the HADES experiment and for the Straw Tube Tracker (STT) and the Forward Tracker (FT) detectors in the PANDA experiment, both at the FAIR facility. Since more than 5000 ASICs were produced for both experiments, efficient qualification tests are required. For this purpose, the multi-chip test setup and dedicated verification procedures were developed. In this paper, the measurement results for the first batch of 140 Front-End Boards (FEBs), each hosting two ASICs, are presented. Since a significant number (280) of PASTTREC chips were tested, obtained statistical distributions of key parameters are also reported. The estimated yield (97%) and the process-related spread of the chip parameters are discussed.

Published
2023

3. Report on MESON2021

Author

Catalina Curceanu, James Ritman, and Piotr Salabura

Subjects
Nuclear and High Energy Physics, ddc:530
Published
2022

4. Exclusive f1(1285) meson production for energy ranges available at the GSI-FAIR with HADES and PANDA

Author

Otto Nachtmann, Piotr Lebiedowicz, Antoni Szczurek, and Piotr Salabura

Subjects
Coupling constant, Physics, Particle physics, Quark model, Order (ring theory), Production (computer science), Coupling (probability), Omega, Energy (signal processing), Vertex (geometry)
Abstract

We evaluate the cross section for the $pp\ensuremath{\rightarrow}pp{f}_{1}(1285)$ and $p\overline{p}\ensuremath{\rightarrow}p\overline{p}{f}_{1}(1285)$ reactions at near threshold energies relevant for the HADES and PANDA experiments at GSI-FAIR. We assume that at energies close to the threshold the $\ensuremath{\omega}\ensuremath{\omega}\ensuremath{\rightarrow}{f}_{1}(1285)$ and ${\ensuremath{\rho}}^{0}{\ensuremath{\rho}}^{0}\ensuremath{\rightarrow}{f}_{1}(1285)$ fusion processes are the dominant production mechanisms. The vertex for the $VV\ensuremath{\rightarrow}{f}_{1}$ coupling is derived from an effective coupling Lagrangian. The ${g}_{\ensuremath{\rho}\ensuremath{\rho}{f}_{1}}$ coupling constant is extracted from the decay rate of ${f}_{1}(1285)\ensuremath{\rightarrow}{\ensuremath{\rho}}^{0}\ensuremath{\gamma}$ using the vector-meson-dominance ansatz. We assume ${g}_{\ensuremath{\omega}\ensuremath{\omega}{f}_{1}}={g}_{\ensuremath{\rho}\ensuremath{\rho}{f}_{1}}$, equality of these two coupling constants, based on arguments from the naive quark model and vector-meson dominance. The amplitude for the $VV\ensuremath{\rightarrow}{f}_{1}$ fusion, supplemented by phenomenological vertex form factors for the process, is given. The differential cross sections at energies close to the threshold are calculated. In order to determine the parameters of the model the $\ensuremath{\gamma}p\ensuremath{\rightarrow}{f}_{1}(1285)p$ reaction is discussed in addition and results are compared with the CLAS data. The possibility of a measurement by HADES@GSI is presented and discussed. We perform a Monte Carlo feasibility simulation of the $pp\ensuremath{\rightarrow}pp{f}_{1}$ reaction for $\sqrt{s}=3.46\text{ }\text{ }\mathrm{GeV}$ with the ${f}_{1}$ decaying into the ${\ensuremath{\pi}}^{+}{\ensuremath{\pi}}^{\ensuremath{-}}{\ensuremath{\pi}}^{+}{\ensuremath{\pi}}^{\ensuremath{-}}$ (not shown explicitly) and ${\ensuremath{\pi}}^{+}{\ensuremath{\pi}}^{\ensuremath{-}}\ensuremath{\eta}(\ensuremath{\rightarrow}{\ensuremath{\pi}}^{+}{\ensuremath{\pi}}^{\ensuremath{-}}{\ensuremath{\pi}}^{0})$ final states using the PLUTO event generator. The latter ${f}_{1}$ decay is especially promising as a peak in the ${\ensuremath{\pi}}^{+}{\ensuremath{\pi}}^{\ensuremath{-}}\ensuremath{\eta}$ mass distribution should be observable by HADES.

Published
2021

5. Dilepton radiation from strongly interacting systems

Author

Joachim Stroth and Piotr Salabura

Subjects
Nuclear and High Energy Physics, Particle physics, Qcd phase diagram, Nuclear Theory, FOS: Physical sciences, Virtual particle, Radiation, 01 natural sciences, heavy-ion phenomenology, 0103 physical sciences, Nuclear Experiment (nucl-ex), 010306 general physics, Nuclear Experiment, QCD matter, Physics, dileptonsIn-medium modifications, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, Nuclear matter, Thermal radiation, High Energy Physics::Experiment, thermal radiation, Phenomenology (particle physics), chiral symmetry restoration, Lepton
Abstract

We review the current understanding of time-like virtual photon emission from QCD matter. The phenomenology of dilepton emission is discussed and basic theoretical concepts are introduced. The experimental findings are presented, grouped into production of lepton pairs in elementary processes, production off cold nuclear matter and emission from heavy-ion collisions. The review emphasizes the role of dilepton emission as tool for studying exotic phases of QCD matter. Open questions and a route to probe the QCD phase diagram with dileptons are outlined.

Published
2021

6. Directed, Elliptic, and Higher Order Flow Harmonics of Protons, Deuterons, and Tritons inAu+AuCollisions atsNN=2.4 GeV

Author

M. Lorenz, S. Spataro, A. Malige, Roman Gernhäuser, A. Kugler, J. Dreyer, I. Fröhlich, Alexander Belyaev, Tatiana Karavicheva, T. Hennino, C. Behnke, P. Tlusty, L. Chlad, C. Wendisch, T. Heinz, Kirill Lapidus, S. Spies, Yu. G. Sobolev, J. A. Garzón, C. Müntz, F. Seck, A. Blanco, P. Fonte, B. Kämpfer, I. Koenig, Laura Fabbietti, Ilya Selyuzhenkov, L. Lopes, P. Zumbruch, Eliane Epple, A. Ivashkin, R. Kotte, K. Pysz, T. Scheib, O. Pechenova, P. Bordalo, C. Deveaux, H. Ströbele, M. Gumberidze, J. Pietraszko, Fedor Guber, R. Greifenhagen, Andrey Reshetin, M. Mamaev, C. Sturm, Oliver Werner Arnold, N. Rathod, V. Wagner, R. H. Munzer, D. M. Mihaylov, P. Rosier, S. Maurus, Y. Parpottas, O. Svoboda, J. Stroth, L. Silva, J. Friese, F. Scozzi, J. Adamczewski-Musch, V. Pechenov, K. Nowakowski, Sergey V. Morozov, B. Kardan, O. Petukhov, Grzegorz Korcyl, T. Mahmoud, B. W. Kolb, R. Lalik, A. K. Kurilkin, Krzysztof Piasecki, T. Kunz, P. Sellheim, A. Rost, Udai Pratap Singh, Christoph Blume, P. Filip, Yu.V. Zanevsky, Witold Przygoda, C. Franco, M. B. Golubeva, P. Rodriguez-Ramos, W. Koenig, G. Kornakov, B. Ramstein, T. Matulewicz, D. Wójcik, S. P. Chernenko, Volker Metag, A. Sadovsky, J. Michel, A. Lebedev, J. Wirth, M. Szala, A. Belounnas, A. B. Kurepin, S. Harabasz, M. Traxler, Jerzy Smyrski, M. Böhmer, A. Mangiarotti, T. Galatyuk, Piotr Salabura, L. Naumann, L. Maier, P. K. Kurilkin, C. Höhne, M. G. Wiebusch, E. Usenko, H. Schuldes, Izabela Ciepał, J. C. Berger-Chen, R. Holzmann, J. Markert, S. Ramos, S. Hlavac, V. P. Ladygin, O. V. Fateev, O. Golosov, F. Kornas, M. Kohls, J. Siebenson, E. Schwab, A.P. Ierusalimov, A. Rustamov, and H. Tsertos

Subjects
Physics, Equation of state, Spectrometer, Nuclear Theory, Elliptic flow, General Physics and Astronomy, 01 natural sciences, 7. Clean energy, Baryon, Nuclear physics, Deuterium, Flow (mathematics), Harmonics, 0103 physical sciences, Rapidity, Nuclear Experiment, 010306 general physics
Abstract

Flow coefficients vn of the orders n=1-6 are measured with the High-Acceptance DiElectron Spectrometer (HADES) at GSI for protons, deuterons, and tritons as a function of centrality, transverse momentum, and rapidity in Au+Au collisions at sNN=2.4 GeV. Combining the information from the flow coefficients of all orders allows us to construct for the first time, at collision energies of a few GeV, a multidifferential picture of the angular emission pattern of these particles. It reflects the complicated interplay between the effect of the central fireball pressure on the emission of particles and their subsequent interaction with spectator matter. The high precision information on higher order flow coefficients is a major step forward in constraining the equation of state of dense baryonic matter.

Published
2020

7. Charged-pion production in $$\mathbf {Au+Au}$$ collisions at $$\sqrt{\mathbf {s}_{\mathbf {NN}}} = 2.4~{\mathbf {GeV}}$$

Author

L. Silva, C. Wendisch, K. Nowakowski, Tatiana Karavicheva, C. Behnke, J. A. Garzón, A. Blanco, P. Fonte, A. Ivashkin, R. Kotte, T. Galatyuk, E. Epple, S. Maurus, Piotr Salabura, L. Naumann, P. Rosier, P. Bordalo, Laura Fabbietti, C. Höhne, M. G. Wiebusch, E. Usenko, L. Maier, Christoph Blume, B. Kardan, V. Pechenov, M. Lorenz, Y. Parpottas, W. Koenig, H. Schuldes, S. Harabasz, O. Petukhov, M. Böhmer, A. Mangiarotti, A. K. Kurilkin, B. W. Kolb, E. Schwab, B. Kämpfer, A. Malige, Fedor Guber, P. Filip, A. Rost, M. Gumberidze, Yu. G. Sobolev, C. Müntz, R. Holzmann, J. Markert, S. Ramos, V. P. Ladygin, I. Koenig, Yu.V. Zanevsky, T. Heinz, P. Zumbruch, F. Scozzi, Izabela Ciepał, P. K. Kurilkin, Ilya Selyuzhenkov, T. Hennino, Oliver Werner Arnold, J. Adamczewski-Musch, M. B. Golubeva, P. Rodriguez-Ramos, A.P. Ierusalimov, F. Kornas, Grzegorz Korcyl, L. Chlad, H. Tsertos, O. Pechenova, A. Lebedev, Roman Gernhäuser, B. Ramstein, S. Hlavac, T. Matulewicz, A. Kugler, J. Pietraszko, A. Belounnas, A. B. Kurepin, M. Traxler, J. Dreyer, Alexander Belyaev, A. Sadovsky, A. Rustamov, J. C. Berger-Chen, S. Spies, C. Sturm, N. Rathod, S. Gläßel, C. Franco, Sergey V. Morozov, F. Seck, K. Pysz, T. Scheib, Witold Przygoda, M. Kohls, J. Siebenson, G. Kornakov, J. Friese, Udai Pratap Singh, C. Deveaux, R. Greifenhagen, O. Svoboda, R. Lalik, L. Lopes, Joachim Stroth, S. Spataro, I. Fröhlich, P. Tlusty, T. Mahmoud, P. Sellheim, H. Ströbele, V. Wagner, Andrey Reshetin, R. H. Munzer, D. M. Mihaylov, S. P. Chernenko, Volker Metag, J. Michel, J. Wirth, Krzysztof Piasecki, T. Kunz, M. Szala, Jerzy Smyrski, K. Lapidus, D. Wójcik, and O. V. Fateev

Subjects
Physics, Nuclear and High Energy Physics, 010308 nuclear & particles physics, Hadron, 01 natural sciences, ddc, Nuclear physics, Pion, 0103 physical sciences, Transverse mass, Rapidity, Impact parameter, Multiplicity (chemistry), 010306 general physics, Nucleon, Centrality
Abstract

We present high-statistic data on charged-pion emission from Au + Au collisions at $$\sqrt{s_{\mathrm{NN}}} = 2.4~\hbox {GeV}$$ s NN = 2.4 GeV (corresponding to $$E_{beam} = 1.23~\hbox {A GeV}$$ E beam = 1.23 A GeV ) in four centrality classes in the range 0–40% of the most central collisions. The data are analyzed as a function of transverse momentum, transverse mass, rapidity, and polar angle. Pion multiplicity per participating nucleon decreases moderately with increasing centrality. The polar angular distributions are found to be non-isotropic even for the most central event class. Our results on pion multiplicity fit well into the general trend of the available world data, but undershoot by $$2.5~\sigma $$ 2.5 σ data from the FOPI experiment measured at slightly lower beam energy. We compare our data to state-of-the-art transport model calculations (PHSD, IQMD, PHQMD, GiBUU and SMASH) and find substantial differences between the measurement and the results of these calculations.

Published
2020

8. Two-pion production in the second resonance region in π−p collisions with the High-Acceptance Di-Electron Spectrometer (HADES)

Author

J. Stroth, Sergey V. Morozov, F.F. Guber, E. Schwab, B. Kämpfer, A. Sadovsky, Yiannis Parpottas, G. Korcyl, R. Lalik, O. V. Fateev, M. Böhmer, Alexey Kurepin, D. Dittert, A.P. Ierusalimov, W. Koenig, M. Gumberidze, C. Franco, H. Ströbele, V. Wagner, T. Mahmoud, A. Prozorov, P. Sellheim, S. Spataro, V. P. Ladygin, L. Silva, I. Fröhlich, H. Schuldes, Roman Gernhäuser, K. Nowakowski, J. Dreyer, A. Kugler, Alexander Belyaev, C. Müntz, C. Wendisch, Oliver Werner Arnold, T. Galatyuk, Yu.V. Zanevsky, J. Kuboś, C. Höhne, L. Lopes, T. Kunz, F. Kornas, M. G. Wiebusch, Izabela Ciepał, Piotr Salabura, C. Sturm, S. Spies, F. Scozzi, J. A. Garzón, E. T. Atomssa, L. Chlad, G. Kornakov, J. Adamczewski-Musch, L. Maier, Laura Fabbietti, J. Siebenson, B. Ramstein, P. Strzempek, M.B. Golubeva, P. Rodriguez-Ramos, P. Chudoba, J. Biernat, A. K. Kurilkin, S. Linev, A. Lebedev, B. W. Kolb, Andrey Reshetin, R. Holzmann, J. Markert, V. Metag, V. Pechenov, A. Rost, A. Belounnas, S. Maurus, T. Heinz, M. Traxler, R. H. Munzer, D. M. Mihaylov, M. Lorenz, B. Kardan, O. Petukhov, O. Vazquez-Doce, A. V. Sarantsev, C. Behnke, J. C. Berger-Chen, P. Tlusty, Kirill Lapidus, V. Mikhaylov, A. Malige, F. Seck, H. Tsertos, V. A. Nikonov, P. Zumbruch, I. Koenig, Eliane Epple, S. Harabasz, O. Pechenova, N. Rathod, J. Pietraszko, C. Deveaux, R. Greifenhagen, O. Svoboda, K. Schmidt-Sommerfeld, Udai Pratap Singh, Witold Przygoda, J. Friese, T. Scheib, C. Ungethüm, P. K. Kurilkin, L. Naumann, T. Hennino, D. Wójcik, M. Szala, A. Blanco, P. Fonte, A. Ivashkin, R. Kotte, Christoph Blume, Jerzy Smyrski, S. P. Chernenko, J. Michel, and J. Wirth

Subjects
Physics, Excitation function, Particle physics, 010308 nuclear & particles physics, Branching fraction, Partial wave analysis, Nuclear Theory, Resonance, Coupling (probability), 7. Clean energy, 01 natural sciences, Baryon, Pion, 0103 physical sciences, Production (computer science), Nuclear Experiment, 010306 general physics
Abstract

Pion induced reactions provide unique opportunities for an unambiguous description of baryonic resonances and their coupling channels by means of a partial wave analysis. Using the secondary pion beam at SIS18, the two pion production in the second resonance region has been investigated to unravel the role of the $N(1520) \frac{3}{2}^-$ resonance in the intermediate $\rho$ production. Results on exclusive channels with one pion ($\pi^{-}p$) and two pions ($\pi^{+}\pi^{-}n$, $\pi^{0}\pi^{-}p$) in the final state measured in the $\pi^{-}-p$ reaction at four different pion beam momenta (0.650, 0.685, 0.733, and 0.786 GeV/c) are presented. The excitation function of the different partial waves and $\Delta\pi$, $N\sigma$ and $N\rho$ isobar configurations is obtained, using the Bonn-Gatchina partial wave analysis. The $N(1520) \frac{3}{2}^-$ resonance is found to dominate the $N\rho$ final state with the branching ratio $BR=12.2 \pm 1.9\%$.

Published
2020

9. Statistical hadronization model for heavy-ion collisions in a few GeV energy regime

Author

Joachim Stroth, S. Harabasz, Piotr Salabura, Wojciech Florkowski, Małgorzata Gumberidze, Tetyana Galatyuk, and Radoslaw Ryblewski

Subjects
Physics, Particle physics, Nuclear Theory, FOS: Physical sciences, Resonance (particle physics), Hadronization, Nuclear Theory (nucl-th), Pion, Hypersurface, Virial expansion, Rapidity, Nuclear Experiment (nucl-ex), Nuclear Experiment, Energy (signal processing), QCD matter
Abstract

We show that the transverse-mass and rapidity spectra of protons and pions produced in Au-Au collisions at sqrt(sNN) = 2.4 GeV can be well reproduced in a thermodynamic model assuming single freeze-out of particles from a spherically symmetric hypersurface. This scenario corresponds to a physical picture used by Siemens and Rasmussen in the original formulation of the blast-wave model. Our framework modifies and extends this approach by incorporation of a Hubble-like expansion of QCD matter and inclusion of resonance decays. In particular, the Delta(1232) resonance is taken into account, with a width obtained from the virial expansion. Altogether, our results bring evidence for substantial thermalization of the matter produced in heavy-ion collisions in a few GeV energy regime and its nearly spherical expansion., published version

Published
2020

10. Exploring time like tranistions in pp, πp and AA reactions with HADES

Author

Roman Gernhäuser, A. Kugler, S. Spies, P. Chudoba, Sergey V. Morozov, R. Greifenhagen, Vikram Patel, M. Lorenz, M. B. Golubeva, P. Rodriguez-Ramos, C. Müntz, P. Wintz, Krzysztof Piasecki, J. Stumm, T. Mahmoud, Christoph Blume, T. Galatyuk, B. Kardan, Burkhard Kampfer, B. Ramstein, A. Kozela, J. Dreyer, Alexander Belyaev, A. Prozorov, T. Matulewicz, O. Petukhov, J. Friese, A. Malige, US Singh, D. Dittert, A. Lebedev, A. Rost, G. Kornakov, V. Pechenov, Piotr Salabura, K. H. Kampert, A. Zhilin, S. Maurus, L. Naumann, C. Wendisch, P. Tlusty, M. Gumberidze, F. Scozzi, J. Adamczewski-Musch, F. Seck, C. Höhne, M. G. Wiebusch, A. Belounnas, Fedor Guber, S. Harabasz, M. Traxler, O. Pechenova, A.A. Weber, F. Kornas, Izabela Ciepał, S. Fateev, J. Pietraszko, M. Böhmer, A.P. Ierusalimov, K. Nowakowski, O. Svoboda, W. Koenig, S. Lebedev, Laura Fabbietti, J. Kuboś, Oleg Golosov, P. Kulesa, C. Pauly, S. Borisenko, L. Chlad, N. Rathod, W.A. Esmail, H. Ströbele, L. Ritman, P. Zumbruch, P. Salabura, Andrey Reshetin, V. Wagner, R. Holzmann, A. Blanco, I. Kres, J. Förtsch, P. Fonte, J. Markert, A. Ivashkin, R. Kotte, Gennady Lykasov, V. P. Ladygin, S. Linev, K. Pysz, B. Arnoldi-Meadows, C. Ungethüm, O. Vazquez-Doce, H. Huck, D. Pfeifer, Witold Przygoda, R. Hensch, L. Lopes, Joachim Stroth, J.-H. Otto, I. Shabanov, R. Lalik, I. Fröhlich, I. Selyuzhenkov, I. Koenig, Volker Metag, J. Michel, J. Wirth, M. Szala, Michael Dürr, Jerzy Smyrski, Institut de Physique Nucléaire d'Orsay (IPNO), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11), and HADES

Subjects
p p: scattering, Photon, heavy ion: scattering, Meson, pi p: scattering, QC1-999, Nuclear Theory, Astrophysics::Cosmology and Extragalactic Astrophysics, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 01 natural sciences, dilepton, Nuclear physics, photon: massive, meson: coupling, 0103 physical sciences, transition: electromagnetic, ddc:530, Vector meson, 010306 general physics, Nuclear Experiment, enhancement, QCD matter, quantum chromodynamics: matter, Physics, form factor: transition, 010308 nuclear & particles physics, Scattering, Computer Science::Information Retrieval, High Energy Physics::Phenomenology, vector meson, Baryon, baryon, HADES, Excited state, High Energy Physics::Experiment, Nucleon
Abstract

NSTAR 2019, Bonn, Germany, 10 Jun 2019 - 14 Jun 2019; The European physical journal / Web of Conferences 241, 01013 (2020). doi:10.1051/epjconf/202024101013, Published by EDP Sciences, Les Ulis

Published
2020

11. New results on light nuclei, hyperons and hypernuclei from HADES (HADES collaboration)

Author

Rayane Abou Yassine, Jörn Adamczewski-Musch, Marten Becker, Philip Bergmann, Alberto Blanco, Christoph Blume, Lukas Chlad, Petr Chudoba, Izabela Ciepał, Malte Cordts, Jörn Dreyer, Waleed Ahmed Esmail, Miroslaw Firlej, Tomasz Fiutowski, Henrik Floersheimer, Paulo Fonte, Jürgen Friese, Ingo Fröhlich, Jörg Förtsch, Tetyana Galatyuk, Tomasz Gniazdowski, Robert Greifenhagen, Mateusz Grunwald, Dieter Grzonka, Malgorzata Gumberidze, Szymon Harabasz, Thorsten Heinz, Claudia Höhne, Fatima Hojeij, Romain Holzmann, Holger Huck, Marek Idzik, Burkhard Kämpfer, Karl-Heinz Kampert, Behruz Kardan, Vadym Kedych, Ilse Koenig, Wolfgang Koenig, Marvin Kohls, Jedrzej Kolas, Grzegorz Korcyl, Georgy Kornakov, Frederic Kornas, Roland Kotte, Wilhelm Krueger, Andrej Kugler, Pawel Kulessa, Rafal Lalik, Semen Lebedev, Sergey Linev, Luís Lopes, Manuel Lorenz, Akshay Malige, Jochen Markert, Tomasz Matulewicz, Johan Messchendorp, Volker Metag, Jan Michel, Aleksandra Molenda, Jakub Moron, Christian Müntz, Marvin Nabroth, Lothar Naumann, Jan Orliński, Jan-Hendrik Otto, Yannis Parpottas, Mirco Parschau, Christian Pauly, Vladimir Pechenov, Olga Pechenova, Gabriela Perez Andrade, Dennis Pfeifer, Krzysztof Piasecki, Jerzy Pietraszko, Tetiana Povar, Alexandr Prozorov, Witold Przygoda, Krzysztof Pysz, Béatrice Ramstein, Narendra Rathod, James Ritman, Adrian Rost, Anar Rustamov, Piotr Salabura, Joao Saraiva, Susan Schadmand, Niklas Schild, Erwin Schwab, Florian Seck, Ilya Selyuzhenkov, Udai Singh, Leon Skorpil, Jerzy Smyrski, Manfred Sobiella, Stefano Spataro, Simon Spies, Maria Stefaniak, Herbert Ströbele, Joachim Stroth, Konrad Sumara, Ondřej Svoboda, Krzysztof Swientek, Melanie Szala, Pavel Tlusty, Michael Traxler, Haralabos Tsertos, Vladimir Wagner, Mateusz Wasiluk, Adrian Amatus Weber, Christian Wendisch, Peter Wintz, Hanna Zbroszczyk, Elizaveta Zherebtsova, Marcin Zielinski, and Peter Zumbruch

Abstract

In March 2019 the HADES experiment recorded 14 billion Ag+Ag collisions at √sNN = 2.55 GeV as a part of the FAIR phase-0 physics program. In this contribution, we present and investigate our capabilities to reconstruct and analyze weakly decaying strange hadrons and hypernuclei emerging from these collisions. The focus is put on measuring the mean lifetimes of these particles.

Published
2022

12. Track finding algorithm using the track road method for the PANDA Forward Tracker

Author

Piotr Salabura, Witold Przygoda, J. Płażek, Jerzy Smyrski, and K. Korcyl

Subjects
General Computer Science, Physics::Instrumentation and Detectors, Plane (geometry), Computer science, Track (disk drive), pattern recognition, Detector, charged particle trajectory, Theoretical Computer Science, Momentum, Dipole magnet, Deflection (engineering), Modeling and Simulation, straw tube chambers, Line (geometry), Projection (set theory), Algorithm
Abstract

In this study, we present an algorithm for 3D track finding in the Forward Tracker of the PANDA experiment. This tracker is based on straw tube detectors and is designed to measure the deflection of particles in the magnetic field of the PANDA dipole magnet in order to determine their momenta. The algorithm uses the track road method for selecting track candidates. The applied track model in the projection onto the bending plane in the region before, inside and after the dipole magnet gap consists of line, circle and line, respectively. In the non-bending plane, a track projection is represented by a straight line. The algorithm was tested using simulated tracks of muons and obtained results for the track finding efficiency and for the momentum resolution are presented.

Published
2021

13. Reconstruction of γγ mass spectra in Ag+Ag collisions at 1.23 and 1.58 AGeV beam energies with ECal detector of the HADES experiment

Author

Andrey Reshetin, M. Gumberidze, Petr Chudoba, Piotr Salabura, A. Ivashkin, J. Pietraszko, T. Galatyuk, R. Lalik, S. Morozov, A. Shabanov, V. Pechenov, O. Petukhov, F. Guber, A. Prozorov, A. Rost, O. Svoboda, P. Tlusty, N. Rathod, and A. Kugler

Subjects
Physics, Nuclear physics, History, Thesaurus (information retrieval), Detector, Mass spectrum, Beam (structure), Computer Science Applications, Education
Abstract

HADES is a high acceptance di-electron spectrometer operating at SIS18, GSI, Germany aimed at study of hadron-proton, hadron-nucleus and nucleus-nucleus collisions at 1-4 AGeV beam energies. The new electromagnetic calorimeter (ECal) was added to the experimental setup in order to measure γ-quanta and thus extend its capabilities in study of π 0-, η-mesons, production of neutral hyperons and to improve electron-to-hadron separation for the partcles with momenta p > 300 MeV/c. The first data taking with the ECal detector was carried out in March 2019 when Ag+Ag collisions at 1.23 AGeV and 1.58 AGeV beam energies were studied. The methods of reconstruction of the γγ invariant mass spectra from these data are discussed. The analysis includes several steps: calibration of each module of the ECal detector, identification of γ-quanta, reconstruction of γγ invariant mass spectra and subtraction of combinatorial background. The obtained results show experimental capabilities of the new detector and, after efficiency corrections, will allow to normalize yields of other particles.

Published
2020

14. Application of the compress sensing theory for improvement of the TOF resolution in a novel J-PET instrument

Author

Marcin Zieliński, Adam Strzelecki, Wojciech Krzemien, Piotr Salabura, Zbigniew Rudy, Andrzej Kochanowski, Eryk Czerwiński, Szymon Niedźwiecki, Marek Palka, Łukasz Kapłon, Wojciech Wiślicki, Michał Silarski, Anna Wieczorek, Aleksander Gajos, Artur Słomski, Lech Raczyński, Tomasz Kozik, Tomasz Bednarski, Paweł Kowalski, Grzegorz Korcyl, Ewelina Kubicz, Jakub Kowal, Jerzy Smyrski, N. Gupta-Sharma, Paweł Moskal, N. Zoń, and Piotr Białas

Subjects
Nuclear and High Energy Physics, time of fl ight, Physics - Instrumentation and Detectors, positron emission tomography, Physics::Instrumentation and Detectors, Science, Physics::Medical Physics, FOS: Physical sciences, 02 engineering and technology, High Energy Physics - Experiment, 030218 nuclear medicine & medical imaging, High Energy Physics - Experiment (hep-ex), 03 medical and health sciences, 0302 clinical medicine, Optics, 0202 electrical engineering, electronic engineering, information engineering, medicine, Safety, Risk, Reliability and Quality, Waste Management and Disposal, Instrumentation, compressed sensing, Physics, medicine.diagnostic_test, business.industry, Resolution (electron density), 020206 networking & telecommunications, Instrumentation and Detectors (physics.ins-det), Condensed Matter Physics, Time of flight, Compressed sensing, Nuclear Energy and Engineering, Positron emission tomography, time of flight, business
Abstract

Nowadays, in positron emission tomography (PET) systems, a time of flight (TOF) information is used to improve the image reconstruction process. In TOF-PET, fast detectors are able to measure the difference in the arrival time of the two gamma rays, with the precision enabling to shorten significantly a range along the line-of-response (LOR) where the annihilation occurred. In the new concept, called J-PET scanner, gamma rays are detected in plastic scintillators. In a single strip of J-PET system, time values are obtained by probing signals in the amplitude domain. Owing to compressive sensing (CS) theory, information about the shape and amplitude of the signals is recovered. In this paper, we demonstrate that based on the acquired signals parameters, a better signal normalization may be provided in order to improve the TOF resolution. The procedure was tested using large sample of data registered by a dedicated detection setup enabling sampling of signals with 50-ps intervals. Experimental setup provided irradiation of a chosen position in the plastic scintillator strip with annihilation gamma quanta.

Published
2016

15. Calibration of the electromagnetic calorimeter ECal of the HADES experiment

Author

S. Morozov, M. Gumberidze, D. Borisenko, J. Pietraszko, T. Galatyuk, A. Reshetin, V. Pechenov, A. Shabanov, A. Kugler, O. Petukhov, R. Lalik, N. Rathod, Petr Chudoba, A. Ivashkin, O. Svoboda, P. Tlusty, A. Rost, A. Prozorov, Piotr Salabura, and F. Guber

Subjects
Physics, History, Physics::Instrumentation and Detectors, business.industry, Calibration (statistics), Computer Science Applications, Education, Electromagnetic calorimeter, Optics, ddc:530, High Energy Physics::Experiment, Nuclear Experiment, business
Abstract

FARNESS 2019, Genova, Italy, 20 May 2019 - 25 May 2019; Journal of physics / Conference series 1667, 012039 (2020). doi:10.1088/1742-6596/1667/1/012039, Published by IOP Publ.39969, Bristol

Published
2020

16. Pressure stabilized straw tube modules for the PANDA Forward Tracker

Author

M. Kajetanowicz, Edward Lisowski, Aleksandra Wrońska, W. Migdał, P. Wintz, Piotr Salabura, A. Heczko, A. Misiak, Witold Przygoda, J. Ritman, Marek Idzik, Jerzy Smyrski, Bartłomiej Korzeniak, R. Lalik, Krzysztof Swientek, Tomasz Fiutowski, Paola Gianotti, M. Savrie, Grzegorz Korcyl, and A. Malarz

Subjects
Straw tube, 010308 nuclear & particles physics, Computer science, 0103 physical sciences, Detector, Frame (networking), Mechanical engineering, Straw, 010306 general physics, 01 natural sciences, Instrumentation, Mathematical Physics, Overpressure
Abstract

The design of straw tube detector modules developed for the PANDA Forward Tracker is presented. One module consists of 32 straws with 10 mm diameter, arranged in two staggered layers, and has a very low material budget of only 8.8⋅10^{−4}X_{0}. The overpressure of the working gas mixture of 1 bar makes the module self-supporting and enables the use of lightweight and compact support frames. Detection planes in the Forward Tracker consist of modules mounted closely, without gaps, next to each other on a support frame. A module can be mounted and dismounted from the frame without the need to remove the neighboring modules, enabling fast repairs. Technical details of the detector design and the assembly procedure of the straw tubes and the straw modules as well as results of performed tests of the modules are given.

Published
2018

17. Study of the quasi-freenp→npπ+π−reaction with a deuterium beam at 1.25 GeV/nucleon

Author

S. Spataro, I. Fröhlich, J. Wüstenfeld, D. González-Díaz, J. S. Díaz, R. Holzmann, M. Böhmer, J. Markert, P. Cabanelas, A. Mangiarotti, Laura Fabbietti, P. Tlusty, B. Kämpfer, Kirill Lapidus, E. Schwab, A.P. Ierusalimov, T. Christ, A. Rustamov, V. P. Ladygin, A. Dybczak, Kathrin Göbel, Y. Parpottas, M. Gumberidze, Alexander Belyaev, T. Hennino, C. Sturm, T. Liu, S. Lang, A. Gil, J. L. Boyard, L. Lopes, Joachim Stroth, R. Krücken, Andrey Reshetin, A. K. Kurilkin, S. Yurevich, Y. C. Pachmayer, B. Michalska, A. B. Kurepin, M. Traxler, E. Morinière, I. Koenig, B. Ramstein, T. A. Vasiliev, O. V. Fateev, Tatiana Karavicheva, M. Lorenz, A. Schmah, W. Koenig, G. Agakishiev, Jehad Mousa, S. P. Chernenko, D. Belver, Volker Metag, P. Zhou, J. Michel, Paolo Finocchiaro, I. Iori, Witold Przygoda, O. Pechenova, H. Ströbele, A. Tarantola, Piotr Salabura, L. Naumann, L. Maier, V. Wagner, Yu.V. Zanevsky, J. Friese, T. Wojcik, F. Dohrmann, Wolfgang Kuhn, Fedor Guber, E. Castro, M. B. Golubeva, B. Spruck, C. Gilardi, A. Blanco, A. Balanda, P. Fonte, A. Ivashkin, R. Kotte, J. A. Garzón, V. Pechenov, Tetyana Galatyuk, R. Trebacz, J. S. Lange, Michael Weber, Roman Gernhäuser, A. Kugler, J. Pietraszko, M. Jurkovic, D. Kirschner, M. Destefanis, Yu. G. Sobolev, C. Müntz, A. Sadovsky, K. Teilab, Marek Palka, M. Wisniowski, H. Tsertos, Peter Braun-Munzinger, B. W. Kolb, J. Otwinowski, P. K. Kurilkin, and Filip Krizek

Subjects
Physics, Nuclear and High Energy Physics, Particle physics, Spectrometer, Nuclear Theory, Resonance (particle physics), Nuclear physics, Deuterium, Isospin, Mass spectrum, Invariant mass, Nuclear Experiment, Nucleon, Beam (structure)
Abstract

The tagged quasi-free np→npπ+π- reaction has been studied experimentally with the High Acceptance Di-Electron Spectrometer (HADES) at GSI at a deuteron incident beam energy of 1.25 GeV/nucleon (s~2.42 GeV/c for the quasi-free collision). For the first time, differential distributions of solid statistics for π+π- production in np collisions have been collected in the region corresponding to the large transverse momenta of the secondary particles. The invariant mass and angular distributions for the np→npπ+π- reaction are compared with different models. This comparison confirms the dominance of the t-channel with δδ contribution. It also validates the changes previously introduced in the Valencia model to describe two-pion production data in other isospin channels, although some deviations are observed, especially for the π+π- invariant mass spectrum. The extracted total cross section is also in much better agreement with this model. Our new measurement puts useful constraints for the existence of the conjectured dibaryon resonance at mass M~2.38 GeV and with width Γ~70 MeV.

Published
2015

18. Compressive sensing of signals generated in plastic scintillators in a novel J-PET instrument

Author

Tomasz Kozik, Artur Słomski, Łukasz Kapłon, Sz. Niedźwiecki, Zbigniew Rudy, Lech Raczyński, Neha Gupta Sharma, Marcin Zieliński, Andrzej Kochanowski, Eryk Czerwiński, Adam Strzelecki, Wojciech Wiślicki, Ewelina Kubicz, Piotr Białas, Janusz Kowal, Michał Silarski, Paweł Kowalski, Wojciech Krzemien, Oleksandr Rundel, Anna Wieczorek, Marek Palka, Paweł Moskal, N. Zoń, Piotr Salabura, Jerzy Smyrski, Tomasz Bednarski, Grzegorz Korcyl, and Aleksander Gajos

Subjects
Physics, Nuclear and High Energy Physics, Physics - Instrumentation and Detectors, positron emission tomography, Covariance matrix, Iterative method, Tikhonov regularization, J-PET, Detector, FOS: Physical sciences, Instrumentation and Detectors (physics.ins-det), Signal, Compressed sensing, Sampling (signal processing), Principal component analysis, Instrumentation, Algorithm, compressed sensing
Abstract

The J-PET scanner, which allows for single bed imaging of the whole human body, is currently under development at the Jagiellonian University. The dis- cussed detector offers improvement of the Time of Flight (TOF) resolution due to the use of fast plastic scintillators and dedicated electronics allowing for sam- pling in the voltage domain of signals with durations of few nanoseconds. In this paper we show that recovery of the whole signal, based on only a few samples, is possible. In order to do that, we incorporate the training signals into the Tikhonov regularization framework and we perform the Principal Component Analysis decomposition, which is well known for its compaction properties. The method yields a simple closed form analytical solution that does not require iter- ative processing. Moreover, from the Bayes theory the properties of regularized solution, especially its covariance matrix, may be easily derived. This is the key to introduce and prove the formula for calculations of the signal recovery error. In this paper we show that an average recovery error is approximately inversely proportional to the number of acquired samples.

Published
2015

19. A novel method for the line-of-response and time-of-flight reconstruction in TOF-PET detectors based on a library of synchronized model signals

Author

Michał Silarski, Daria Kamińska, Piotr Salabura, Artur Słomski, Sz. Niedźwiecki, Anna Wieczorek, Aleksander Gajos, Zbigniew Rudy, Adam Strzelecki, Marcin Zieliński, Tomasz Bednarski, Jerzy Smyrski, Andrzej Kochanowski, Eryk Czerwiński, Paweł Moskal, Piotr Białas, N. Zoń, Grzegorz Korcyl, Tomasz Kozik, Lech Raczyński, Neha Gupta Sharma, Marek Palka, Ewelina Kubicz, Janusz Kowal, Oleksandr Rundel, Paweł Kowalski, Wojciech Wiślicki, Wojciech Krzemien, and Łukasz Kapłon

Subjects
Physics, Nuclear and High Energy Physics, Photomultiplier, Scintillation, Physics - Instrumentation and Detectors, Physics::Instrumentation and Detectors, business.industry, J-PET, Detector, FOS: Physical sciences, Instrumentation and Detectors (physics.ins-det), time-of-flight, Signal, Particle detector, Synchronization, Time of flight, scintillator detectors, Scintillation counter, Computer vision, Artificial intelligence, Nuclear Experiment (nucl-ex), business, Nuclear Experiment, Instrumentation, Positron Emission Tomography
Abstract

A novel method of hit time and hit position reconstruction in scintillator detectors is described. The method is based on comparison of detector signals with results stored in a library of synchronized model signals registered for a set of well-defined positions of scintillation points. The hit position is reconstructed as the one corresponding to the signal from the library which is most similar to the measurement signal. The time of the interaction is determined as a relative time between the measured signal and the most similar one in the library. A degree of similarity of measured and model signals is defined as the distance between points representing the measurement- and model-signal in the multi-dimensional measurement space. Novelty of the method lies also in the proposed way of synchronization of model signals enabling direct determination of the difference between time-of-flights (TOF) of annihilation quanta from the annihilation point to the detectors. The introduced method was validated using experimental data obtained by means of the double strip prototype of the J-PET detector and $^{22}$Na sodium isotope as a source of annihilation gamma quanta.The detector was built out from plastic scintillator strips with dimensions of 5 mm x 19 mm x 300 mm, optically connected at both sides to photomultipliers,from which signals were sampled by means of the Serial Data Analyzer.Using the introduced method, the spatial and TOF resolution of about 1.3 cm ($\sigma$) and 125 ps ($\sigma$) were established, respectively.

Published
2015

20. Multichannel FPGA based MVT system for high precision time (20~ps~RMS) and charge measurement

Author

Bożena Zgardzińska, Bartosz Głowacz, Daria Kamińska, Marek Gorgol, Sz. Niedźwiecki, Tomasz Kozik, Michał Silarski, Kamil Dulski, Oleksandr Rundel, Piotr Salabura, Ewelina Kubicz, Wojciech Wiślicki, M. Mohhamed, M. Kajetanowicz, Paweł Moskal, Anna Wieczorek, Piotr Białas, Paweł Kowalski, P. Strzempek, Grzegorz Korcyl, Marcin Zieliński, Tomasz Bednarski, Jerzy Smyrski, L. Raczyński, Aleksander Gajos, Wojciech Krzemien, Zbigniew Rudy, Eryk Czerwiński, Bożena Jasińska, Neha Gupta Sharma, Marek Palka, and Adam Strzelecki

Subjects
Physics - Instrumentation and Detectors, Comparator, Computer science, FOS: Physical sciences, Signal edge, Instrumentation and Detectors (physics.ins-det), 01 natural sciences, Physics - Medical Physics, 030218 nuclear medicine & medical imaging, High Energy Physics - Experiment, 03 medical and health sciences, High Energy Physics - Experiment (hep-ex), 0302 clinical medicine, Sampling (signal processing), 0103 physical sciences, Electronic engineering, Time domain, Medical Physics (physics.med-ph), System time, 010306 general physics, Field-programmable gate array, Instrumentation, Realization (systems), Mathematical Physics, Voltage
Abstract

In this article it is presented an FPGA based $M$ulti-$V$oltage $T$hreshold (MVT) system which allows of sampling fast signals ($1-2$ ns rising and falling edge) in both voltage and time domain. It is possible to achieve a precision of time measurement of $20$ ps RMS and reconstruct charge of signals, using a simple approach, with deviation from real value smaller than 10$\%$. Utilization of the differential inputs of an FPGA chip as comparators together with an implementation of a TDC inside an FPGA allowed us to achieve a compact multi-channel system characterized by low power consumption and low production costs. This paper describes realization and functioning of the system comprising 192-channel TDC board and a four mezzanine cards which split incoming signals and discriminate them. The boards have been used to validate a newly developed Time-of-Flight Positron Emission Tomography system based on plastic scintillators. The achieved full system time resolution of $\sigma$(TOF) $\approx 68$ ps is by factor of two better with respect to the current TOF-PET systems., Comment: Accepted for publication in JINST, 10 pages, 8 figures

Published
2017
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21. Determination of the map of efficiency of the Jagiellonian Positron Emission Tomograph (J-PET) detector with the GATE package

Author

Zbigniew Rudy, Neha Gupta Sharma, Marcin Molenda, Monika Pawlik-Niedźwiecka, Andrzej Kochanowski, Eryk Czerwiński, Łukasz Kapłon, Szymon Niedźwiecki, Paweł Kowalski, Grzegorz Korcyl, Piotr Salabura, Artur Słomski, Jakub Kowal, Marek Palka, Wojciech Krzemien, Wojciech Wiślicki, Jerzy Smyrski, I. Moskal, Tomasz Bednarski, Marcin Zieliński, Krzysztof Giergiel, Michał Silarski, Konrad Szymański, Piotr Witkowski, Piotr Białas, L. Raczyński, Paweł Moskal, N. Zoń, Tomasz Kozik, and Adam Strzelecki

Subjects
Physics, strip time-of-flight positron emission tomography, General Computer Science, Physics::Instrumentation and Detectors, business.industry, Physics::Medical Physics, ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION, Medicine (miscellaneous), Health Informatics, Biochemistry, Genetics and Molecular Biology (miscellaneous), Pet detector, Optics, GEANT4 Application for Tomographic Emission (GATE), Positron emission, Tomography, business, map of efficiency
Abstract

A novel PET detector consisting of strips of polymer scintillators is being developed by the Jagiellonian Positron Emission Tomograph (J-PET) collaboration. The map of efficiency and the map of geometrical acceptance of the two-strip J-PET scanner are presented. The map of efficiency was determined using the Monte Carlo simulation software GEANT4 Application for Tomographic Emission (GATE), which is based on GEANT4. Both maps were compared using a method based on the χ2-test.

Published
2014

22. 3D PET image reconstruction based on the maximum likelihood estimation method (MLEM) algorithm

Author

Marcin Zieliński, Tomasz Kozik, Wojciech Krzemien, Paweł Moskal, N. Zoń, Piotr Salabura, Jakub Kowal, Piotr Białas, Artur Słomski, Marcin Molenda, Łukasz Kapłon, N. Gupta-Sharma, Marek Palka, Wojciech Wiślicki, Paweł Kowalski, L. Raczyński, M. Pawlik, Michał Silarski, Tomasz Bednarski, Grzegorz Korcyl, Zbigniew Rudy, Andrzej Kochanowski, Eryk Czerwiński, Szymon Niedźwiecki, Adam Strzelecki, and Jerzy Smyrski

Subjects
positron emission tomography, Physics - Instrumentation and Detectors, General Computer Science, medicine.diagnostic_test, Computer science, Maximum likelihood, Physics::Medical Physics, Measure (physics), FOS: Physical sciences, Medicine (miscellaneous), Boundary (topology), Health Informatics, Instrumentation and Detectors (physics.ins-det), Iterative reconstruction, image reconstruction, Physics - Medical Physics, Biochemistry, Genetics and Molecular Biology (miscellaneous), eye diseases, Positron emission tomography, medicine, Medical Physics (physics.med-ph), sense organs, Tomography, Positron emission, Algorithm
Abstract

Positron emission tomographs (PET) do not measure an image directly. Instead, they measure at the boundary of the field-of-view (FOV) of PET tomograph a sinogram that consists of measurements of the sums of all the counts along the lines connecting two detectors. As there is a multitude of detectors build-in typical PET tomograph structure, there are many possible detector pairs that pertain to the measurement. The problem is how to turn this measurement into an image (this is called imaging). Decisive improvement in PET image quality was reached with the introduction of iterative reconstruction techniques. This stage was reached already twenty years ago (with the advent of new powerful computing processors). However, three dimensional (3D) imaging remains still a challenge. The purpose of the image reconstruction algorithm is to process this imperfect count data for a large number (many millions) of lines-of-responce (LOR) and millions of detected photons to produce an image showing the distribution of the labeled molecules in space., Comment: 10 pages, 7 figures

Published
2014

23. A novel method based solely on field programmable gate array (FPGA) units enabling measurement of time and charge of analog signals in positron emission tomography (PET)

Author

Janusz Kowal, Piotr Salabura, Marcin Molenda, Adam Strzelecki, Wojciech Krzemien, Michał Silarski, Wojciech Wiślicki, Tomasz Kozik, Marcin Zieliński, Jerzy Smyrski, Zbigniew Rudy, Andrzej Kochanowski, Eryk Czerwiński, Artur Słomski, Paweł Kowalski, Paweł Moskal, N. Zoń, Tomasz Bednarski, Marek Palka, Lech Raczyński, Neha Gupta Sharma, Sz. Niedźwiecki, Piotr Białas, Grzegorz Korcyl, Ł. Kapłon, and M. Pawlik

Subjects
Digital electronics, General Computer Science, Computer science, business.industry, TOF-PET, Medicine (miscellaneous), Health Informatics, Biochemistry, Genetics and Molecular Biology (miscellaneous), TDC, Computer Science::Hardware Architecture, Analog signal, Sampling (signal processing), visual_art, Electronic component, visual_art.visual_art_medium, Electronic engineering, Electronics, business, FPGA, Voltage reference, Voltage, Electronic circuit
Abstract

This article presents an application of a novel technique for precise measurements of time and charge based solely on a field programmable gate array (FPGA) device for positron emission tomography (PET). The described approach simplifies electronic circuits, reduces the power consumption, lowers costs, merges front-end electronics with digital electronics, and also makes more compact final design. Furthermore, it allows to measure time when analog signals cross a reference voltage at different threshold levels with a very high precision of ~15 ps (rms) and thus enables sampling of signals in a voltage domain.

Published
2014

24. The HADES Pion Beam Facility

Author

Joachim Stroth, Piotr Salabura, and Laura Fabbietti

Subjects
Physics, Nuclear and High Energy Physics, Particle physics, Spectrometer, Meson, Nuclear Theory, High Energy Physics::Phenomenology, Hadron, Observable, Strangeness, Nuclear matter, Nuclear physics, High Energy Physics::Experiment, Invariant mass, Nuclear Experiment, Lepton
Abstract

The quest for unraveling the origin of confinement and spontaneous breaking of chiral symmetry have been the driving force for hadron and nuclear matter physics over the last two decades. Both processes are responsible for the generation of mass of all hadronic matter around us [1]. The High Acceptance DiElectron Spectrometer (www-hades.gsi.de) has been designed and put into operation in 2003 to search for signatures of a (partial) restoration of chiral symmetry, then thought to be observable by measuring in-medium (shift of pole) masses of the vector mesons [2, 3]. Electromagnetic decays of the low-mass vector mesons, in particular the ρ meson, represent a formidable choice since they can decay exclusively into a pair of leptons. Hence, in-medium decays become observable by reconstructing the invariant mass of the lepton pairs recorded in the spectrometer.

Published
2015

25. pK+Λ final state: Towards the extraction of the ppK− contribution

Author

J. Wüstenfeld, C. Sturm, B. Ramstein, T. Hennino, Alexander Belyaev, B. Kämpfer, Tetyana Galatyuk, L. Lopes, M. Gumberidze, P. Cabanelas, Joachim Stroth, P. Huck, H. Schuldes, P. Tlusty, Kirill Lapidus, J. Friese, A. Sadovsky, K. Teilab, P. K. Kurilkin, J. Siebenson, G. Kornakov, W. Koenig, Y. Parpottas, R. Holzmann, J. Markert, A.P. Ierusalimov, A. Dybczak, D. Belver, J. C. Berger-Chen, T. A. Vasiliev, V. P. Ladygin, Yu.V. Zanevsky, R. Lalik, S. Lang, D. González-Díaz, C. Höhne, A. Krása, Tatiana Karavicheva, C. Behnke, S. P. Chernenko, A. Lebedev, Volker Metag, S. Spataro, I. Fröhlich, I. Koenig, J. Michel, M. B. Golubeva, Andrey Reshetin, A. B. Kurepin, A. Rustamov, H. Ströbele, M. Traxler, Marek Palka, M. Lorenz, Piotr Salabura, L. Naumann, O. V. Fateev, R. H. Munzer, O. Svoboda, A. K. Kurilkin, V. Wagner, L. Maier, B. W. Kolb, S. Harabasz, O. Pechenova, Laura Fabbietti, Fedor Guber, P. Strzempek, K. Gill, H. Kuc, L. Rehnisch, Grzegorz Korcyl, H. Tsertos, Michael Weber, Witold Przygoda, G. Agakishiev, E. Epple, S. Yurevich, A. Tarantola, E. Krebs, M. Böhmer, A. Mangiarotti, Yu. G. Sobolev, C. Müntz, A. Kugler, M. Jurkovic, J. A. Garzón, J. Pietraszko, V. Pechenov, A. Blanco, P. Fonte, A. Ivashkin, R. Kotte, Christoph Blume, T. Scheib, C. Wendisch, Filip Krizek, and C. Dritsa

Subjects
Physics, Nuclear and High Energy Physics, Particle physics, Meson, 010308 nuclear & particles physics, Partial wave analysis, Hadron, Hyperon, Lambda baryon, 01 natural sciences, Resonance (particle physics), 0103 physical sciences, Bound state, 010306 general physics, Nucleon
Abstract

The reaction p ( @ 3.5 GeV ) + p → p + Λ + K + can be studied to search for the existence of kaonic bound states like p p K − leading to this final state. This effort has been motivated by the assumption that in p + p collisions the Λ ( 1405 ) resonance can act as a doorway to the formation of the kaonic bound states. The status of this analysis within the HADES Collaboration, with particular emphasis on the comparison to simulations, is shown in this work and the deviation method utilized by the DISTO Collaboration in a similar analysis is discussed. The outcome suggests the employment of a partial wave analysis do disentangle the different contributions to the measured p K + Λ final state.

Published
2013

26. Measurement of the ϕ→π0e+e− transition form factor with the KLOE detector

Author

M. Berlowski, G. D'Agostini, E. Dané, A. D'Uffizi, Paolo Santangelo, G. Giardina, G. Felici, Wojciech Krzemien, Eryk Czerwiński, A. Passeri, L. Caldeira Balkeståhl, I. Sarra, F. Sirghi, P. Branchini, S. Loffredo, A. Fantini, A. Anastasi, Lena Heijkenskjöld, D. Moricciani, Antonio Budano, Filippo Ceradini, A. Di Cicco, L. Tortora, F. Happacher, Aleksander Gajos, W. Ikegami Andersson, S. Giovannella, Vincenzo Patera, R. Messi, T. Johansson, Daria Kamińska, Andrzej Kupsc, M. Papenbrock, V. De Leo, F. Bossi, E. De Lucia, Paolo Ciambrone, D. Domenici, R. Di Salvo, G. Venanzoni, Giuseppe Mandaglio, F. Curciarello, Wojciech Wiślicki, B. Cao, S. Fiore, E. Perez del Rio, E. Graziani, G. Bencivenni, Magnus Wolke, P. Gauzzi, Piotr Salabura, S. Miscetti, A. De Santis, P. De Simone, M. Mascolo, A. Di Domenico, Michał Silarski, Paweł Moskal, Gianfranco Morello, D. Babusci, Marco Schioppa, C. Bloise, A. Ranieri, M. Martini, Anastasi, A., Ceradini, Filippo, DI CICCO, Alessandro, Loffredo, Salvatore, and Fiore, S.

Subjects
Nuclear and High Energy Physics, Electron–positron annihilation, e+e− collisions, Transition form factor, 01 natural sciences, Conversion decay, E+e- collisions, High Energy Physics - Experiment, law.invention, Nuclear physics, Subatomär fysik, e(+)e(-) collisions, law, 0103 physical sciences, Subatomic Physics, 010306 general physics, Collider, E+e- collision, Settore FIS/01, Physics, 010308 nuclear & particles physics, Branching fraction, Detector, Form factor (quantum field theory), Pseudoscalar, High Energy Physics - Phenomenology, Transition form factors, electron positron collider, KLOE experiment, High Energy Physics::Experiment
Abstract

A measurement of the vector to pseudoscalar conversion decay $\phi \to \pi^0 e^+e^-$ with the KLOE experiment is presented. A sample of $\sim 9500$ signal events was selected from a data set of 1.7 fb$^{-1}$ of $e^+e^-$ collisions at $\sqrt{s} \sim m_{\phi}$ collected at the DA$\Phi$NE $e^+e^-$ collider. These events were used to obtain the first measurement of the transition form factor $| F_{\phi \pi^0}(q^2) |$ and a new measurement of the branching ratio of the decay: $\rm{BR}\,(\phi \to \pi^0 e^+e^-) = (\,1.35 \pm 0.05^{\,\,+0.05}_{\,\,-0.10}\,) \times 10 ^{-5}$. The result improves significantly on previous measurements and is in agreement with theoretical predictions., Comment: 13 pages, 4 figures; matches published version

Published
2016

27. Development of a dedicated front-end electronics for straw tube trackers in the $\bar{P}$ANDA experiment

Author

Piotr Salabura, J. Tokarz, Tomasz Fiutowski, Krzysztof Swientek, Marek Idzik, M. Kajetanowicz, D. Przyborowski, P. Terlecki, Jerzy Smyrski, Grzegorz Korcyl, and P. Strzempek

Subjects
Physics, 010308 nuclear & particles physics, Preamplifier, business.industry, Amplifier, Electrical engineering, Integrated circuit, 01 natural sciences, law.invention, CMOS, Application-specific integrated circuit, law, 0103 physical sciences, Electronics, 010306 general physics, business, Instrumentation, Mathematical Physics, Electronic circuit, Jitter
Abstract

The design and tests of front-end electronics for straw tube trackers in the ANDA experiment at FAIR are presented. The challenges for the front-end electronics, comprising operation at high counting rate up to 1 MHz per straw tube, are discussed and the proposed architecture comprising a switched gain charge sensitive preamplifier (CSP), a pole-zero cancellation circuit (PZC), a second order variable peaking time shaper, a trimming ion tail cancellation circuit, and a baseline holder (BLH), is described. The front-end provides an analogue output and a discriminator with LVDS differential driver for the Time-of-Arrival (ToA) and Time-over-Threshold (ToT) measurements. A prototype readout ASIC featuring four channels was fabricated in 0.35 μm CMOS technology consuming 15.5 mW (analog part) and 12 mW (LVDS) per channel. The results of measurements of peaking time (25–67 ns), gain, noise (ENC 800–2500 el. for various gains), time walk and jitter are presented as well as the first results obtained with prototype straw tubes connected.

Published
2016

28. Study of dielectron production in C+C collisions at 1A GeV

Author

M. Roy-Stephan, R.S. Simon, P. Tlusty, Laura Fabbietti, J. S. Lange, E. Schwab, Tetyana Galatyuk, O. Pechenova, J. Pietraszko, A. B. Kurepin, M. Traxler, Filip Krizek, C. Sturm, A.P. Ierusalimov, A. M. Schmah, M. Weber, A. Gil, S. Spataro, R. Holzmann, J. Markert, E. Morinière, Y. Parpottas, Yu. G. Sobolev, D. Mishra, C. Müntz, H. Wen, Alexander Belyaev, D. González-Díaz, J. S. Díaz, Y. C. Pachmayer, S. Lang, Tatiana Karavicheva, Thomas Eberl, K. Lapidus, T. Christ, A. Dybczak, R. Novotny, Jehad Mousa, B. Michalska, P. Cabanelas, J. Lamas-Valverde, H. Alvarez-Pol, A. Rustamov, A. Krása, Andrey Reshetin, D. Belver, T. Perez Cavalcanti, Witold Przygoda, I. Koenig, A. Kozuch, A. Kugler, M. Sudol, T. Heinz, B. Spruck, R. Pleskac, P. Zhou, T. Hennino, C. Gilardi, Yu.V. Zanevsky, J. L. Boyard, M. Destefanis, A. Blanco, P. Fonte, V. Pospíšil, F. Dohrmann, A. Ivashkin, Paolo Finocchiaro, R. Kotte, A. Toia, A. Bortolotti, M. B. Golubeva, A. Balanda, S. Yurevich, J. Friese, T. Wojcik, Piotr Salabura, L. Lopes, L. Maier, V. Pechenov, Joachim Stroth, R. Krücken, E. Grosse, J. A. Garzón, I. Iori, B. Kämpfer, H. Ströbele, V. Wagner, B. W. Kolb, J. Otwinowski, B. Ramstein, B. Sailer, R. Trebacz, J. Marín, Kalliopi Kanaki, M. Münch, D. Kirschner, C. Schroeder, P. Zumbruch, E. Castro, O. V. Fateev, C. Agodi, R. Bassini, M. Heilmann, Roman Gernhäuser, M. Kajetanowicz, M. Jurkovic, Wolfgang Kuhn, H. Tsertos, Peter Braun-Munzinger, G. Bellia, I. Veretenkin, Fedor Guber, I. Fröhlich, A. Tarantola, M. Böhmer, A. Mangiarotti, S. P. Chernenko, Volker Metag, J. Wüstenfeld, G. Agakishiev, W. Koenig, L. Naumann, A. Sadovsky, K. Teilab, Marek Palka, and M. Wisniowski

Subjects
Excitation function, Physics, Nuclear and High Energy Physics, Particle physics, 010308 nuclear & particles physics, Nuclear Theory, Hadron, 01 natural sciences, Nuclear physics, Pion, 0103 physical sciences, Incident energy, High Energy Physics::Experiment, Production (computer science), Nuclear Experiment, 010306 general physics, Nucleon
Abstract

The emission of e+ e- pairs from C + C collisions at an incident energy of 1 GeV per nucleon has been investigated. The measured production probabilities, spanning from the π0-Dalitz to the ρ / ω invariant-mass region, display a strong excess above the cocktail of standard hadronic sources. The bombarding-energy dependence of this excess is found to scale like pion production, rather than like eta production. The data are in good agreement with results obtained in the former DLS experiment. © 2008 Elsevier B.V. All rights reserved.

Published
2008

29. Modeling of the Architectural Studies for the PANDA DAT System

Author

Wolfgang Kuehn, Piotr Salabura, L. Schmitt, J. Otwinowski, and K. Korcyl

Subjects
Ethernet, Nuclear and High Energy Physics, Engineering, Event (computing), business.industry, Detector, Local area network, Network topology, Data acquisition, Nuclear Energy and Engineering, Computer architecture, SystemC, Synchronization (computer science), Key (cryptography), Electrical and Electronic Engineering, business, computer, Computer hardware, computer.programming_language
Abstract

We present design studies of the DAQ and trigger system (DAT) for the PANDA detector proposed for the new FAIR facility at GSI. The broad physics program of PANDA requires a novel DAT system able to cope with high interaction rates (up to 2*107/s) and to trigger on various event topologies simultaneously. We used SystemC as modeling platform to investigate a candidate architecture for the PANDA DAT system. We simulated the behavior of the complete system with simplified models of all the components. The model covers detector buffers connected via Ethernet to farms of computing nodes constituting two filtering levels and an event building level. We present results from modeling illustrating the impact of the key architectural choices and parameters on the overall performance.

Published
2008

30. A General Purpose Trigger and Readout Board for HADES and FAIR-Experiments

Author

Marek Palka, Piotr Salabura, Wojciech Krzemien, M. Traxler, R. Trebacz, I. Fröhlich, S. Yurevich, K. Korcyl, Joachim Stroth, H. Strobele, P. Skott, A. Tarantola, C. Schrader, and M. Kajetanowicz

Subjects
Ethernet, Nuclear and High Energy Physics, Virtex, Engineering, business.industry, Interface (computing), Detector, Time-to-digital converter, Data acquisition, Nuclear Energy and Engineering, Nuclear electronics, Electronic engineering, Electrical and Electronic Engineering, business, Field-programmable gate array, Computer hardware
Abstract

HADES is a running spectrometer installed at GSI, Germany. PANDA and CBM are planned detector systems for the new FAIR facility at GSI. For these detectors, a general-purpose trigger and readout board with on-board DAQ functionality was developed. The original motivation for this project was the implementation of a 128-channel time to digital converter (TDC) with a time resolution of sigma=40 ps based on the HPTDC chip from CERN into a fully fledged data acquisition system. The application of the board is detector independent, includes a 2 Gbit/s optical link and has the option to employ the TDC chips and/or to integrate versatile add-on boards through 16 Gbit/s connectors. The latter one may interface to the front end electronics of other types of detectors. A large FPGA (Xilinx Virtex 4 LX40) and a TigerSharc DSP can be used as on-board resources for trigger and on-line analysis algorithms. Data transfer to mass storage and slow control is done via an ETRAX processor running Linux and a 100 Mbit/s Ethernet interface.

Published
2008

31. SubthresholdΞ−Production in Collisions ofp(3.5 GeV)+Nb

Author

S. P. Chernenko, Volker Metag, T. Heinz, J. Michel, O. Pechenova, J. Pietraszko, Laura Fabbietti, Yu.V. Zanevsky, D. González-Díaz, M. B. Golubeva, A. Balanda, Piotr Salabura, L. Naumann, P. Tlusty, Y. Parpottas, C. Wendisch, Kirill Lapidus, C. Müntz, A. Tarantola, L. Maier, Filip Krizek, B. Spruck, Eliane Epple, R. Müntzer, Yu. G. Sobolev, T. Hennino, H. Tsertos, A. M. Schmah, S. Yurevich, Y. C. Pachmayer, Kathrin Göbel, A. Lebedev, W. Kühn, G. Kornakov, P. Cabanelas, J. Stroth, B. Ramstein, Witold Przygoda, S. Lang, I. Koenig, V. Pechenov, D. Belver, Andrey Reshetin, M. Lorenz, H. Kuc, Tatiana Karavicheva, A. B. Kurepin, M. Traxler, Alexander Belyaev, T. A. Vasiliev, B. W. Kolb, J. Friese, O. V. Fateev, Tetyana Galatyuk, J. Siebenson, M. Böhmer, A. Mangiarotti, C. Sturm, W. Koenig, E. Schwab, A.P. Ierusalimov, B. Kämpfer, A. Rustamov, J. Wüstenfeld, R. Lalik, T. Liu, J. L. Boyard, L. Lopes, M. Gumberidze, Roman Gernhäuser, R. Krücken, R. Holzmann, J. Markert, G. Agakishiev, Paolo Finocchiaro, A. Kugler, V. P. Ladygin, B. Michalska, S. Spataro, I. Fröhlich, A. Dybczak, J. C. Berger-Chen, A. Krása, J. A. Garzón, A. Blanco, P. Fonte, M. Jurkovic, A. Ivashkin, R. Kotte, Fedor Guber, Oliver Werner Arnold, Michael Weber, R. Trebacz, I. Iori, H. Ströbele, V. Wagner, K. Teilab, Marek Palka, and A. Sadovsky

Subjects
Nuclear physics, Baryon, Physics, Particle physics, Subthreshold conduction, Hyperon, General Physics and Astronomy, Heavy ion, 7. Clean energy, Beam energy
Abstract

Results on the production of the double strange cascade hyperon Ξ^{-} are reported for collisions of p(3.5 GeV)+Nb, studied with the High Acceptance Di-Electron Spectrometer (HADES) at SIS18 at GSI Helmholtzzentrum for Heavy-Ion Research, Darmstadt. For the first time, subthreshold Ξ^{-} production is observed in proton-nucleus interactions. Assuming a Ξ^{-} phase-space distribution similar to that of Λ hyperons, the production probability amounts to P_{Ξ^{-}}=[2.0±0.4(stat)±0.3(norm)±0.6(syst)]×10^{-4} resulting in a Ξ^{-}/(Λ+Σ^{0}) ratio of P_{Ξ^{-}}/P_{Λ+Σ^{0}}=[1.2±0.3(stat)±0.4(syst)]×10^{-2}. Available model predictions are significantly lower than the measured Ξ^{-} yield.

Published
2015

32. Plastic scintillators for positron emission tomography obtained by the bulk polymerization method

Author

Łukasz Kapłon, Andrzej Kochanowski, Marcin Molenda, Paweł Moskal, Anna Wieczorek, Tomasz Bednarski, Piotr Białas, Eryk Czerwiński, Grzegorz Korcyl, Jakub Kowal, Paweł Kowalski, Tomasz Kozik, Wojciech Krzemień, Szymon Niedźwiecki, Marek Pałka, Monika Pawlik, Lech Raczyński, Zbigniew Rudy, Piotr Salabura, Neha Gupta-Sharma, Michał Silarski, Artur Słomski, Jerzy Smyrski, Adam Strzelecki, Wojciech Wiślicki, Marcin Zieliński, and Natalia Zoń

Subjects
Materials science, positron emission tomography, Physics - Instrumentation and Detectors, General Computer Science, Bulk polymerization, Physics::Instrumentation and Detectors, FOS: Physical sciences, Medicine (miscellaneous), Health Informatics, Scintillator, polymer scintillator, Biochemistry, Genetics and Molecular Biology (miscellaneous), plastic scintillator, medicine, batch cell bulk polymerization, Condensed Matter - Materials Science, medicine.diagnostic_test, Quantitative Biology::Neurons and Cognition, business.industry, Manufacturing process, Materials Science (cond-mat.mtrl-sci), Instrumentation and Detectors (physics.ins-det), Physics - Medical Physics, Positron emission tomography, Optoelectronics, Medical Physics (physics.med-ph), business
Abstract

This paper describes three methods regarding the production of plastic scintillators. One method appears to be suitable for the manufacturing of plastic scintillator, revealing properties which fulfill the requirements of novel positron emission tomography scanners based on plastic scintillators. The key parameters of the manufacturing process are determined and discussed., 7 pages, 4 figures

Published
2015

33. Analysis framework for the J-PET scanner

Author

Łukasz Kapłon, Sz. Niedźwiecki, Adam Strzelecki, Michał Silarski, Piotr Białas, A. Gruntowski, Anna Wieczorek, Janusz Kowal, Piotr Salabura, Tomasz Bednarski, Wojciech Krzemien, Marcin Zieliński, Artur Słomski, K. Stola, Paweł Kowalski, Lech Raczyński, Neha Gupta Sharma, Ewelina Kubicz, Aleksander Gajos, Paweł Moskal, N. Zoń, Tomasz Kozik, Jerzy Smyrski, Marek Palka, Daria Kamińska, D. Trybek, Grzegorz Korcyl, Zbigniew Rudy, Andrzej Kochanowski, Eryk Czerwiński, and Wojciech Wiślicki

Subjects
Scanner, Physics - Instrumentation and Detectors, business.industry, Computer science, InformationSystems_INFORMATIONINTERFACESANDPRESENTATION(e.g.,HCI), Data reconstruction, ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION, General Physics and Astronomy, FOS: Physical sciences, Instrumentation and Detectors (physics.ins-det), Software package, Physics - Medical Physics, Pet scanner, Calibration, Computer vision, Artificial intelligence, Tomography, Medical Physics (physics.med-ph), business
Abstract

J-PET analysis framework is a flexible, lightweight, ROOT-based software package which provides the tools to develop reconstruction and calibration procedures for PET tomography. In this article we present the implementation of the full data-processing chain in the J-PET framework which is used for the data analysis of the J-PET tomography scanner. The Framework incorporates automated handling of PET setup parameters' database as well as high level tools for building data reconstruction procedures. Each of these components is briefly discussed., 6 pages, 1 figure

Published
2015

34. GPU accelerated image reconstruction in a two-strip J-PET tomograph

Author

Sz. Niedźwiecki, Łukasz Kapłon, Adam Strzelecki, Artur Słomski, Jerzy Smyrski, Anna Wieczorek, Piotr Salabura, Tomasz Bednarski, Grzegorz Korcyl, Zbigniew Rudy, Michał Silarski, Jakub Kowal, Marcin Zieliński, Andrzej Kochanowski, Eryk Czerwiński, Lech Raczyński, Neha Gupta Sharma, Oleksandr Rundel, Ewelina Kubicz, Tomasz Kozik, Piotr Białas, Marek Palka, Wojciech Krzemien, Paweł Moskal, N. Zoń, Paweł Kowalski, Wojciech Wiślicki, Aleksander Gajos, and Daria Kamińska

Subjects
Physics - Instrumentation and Detectors, business.industry, Computer science, Physics::Instrumentation and Detectors, Physics::Medical Physics, FOS: Physical sciences, General Physics and Astronomy, Instrumentation and Detectors (physics.ins-det), Iterative reconstruction, Pet detector, Time of flight, CUDA, Computer vision, Artificial intelligence, Tomography, Nuclear Experiment (nucl-ex), business, Nuclear Experiment
Abstract

We present a fast GPU implementation of the image reconstruction routine, for a novel two strip PET detector that relies solely on the time of flight measurements.

Published
2015

35. Multiple scattering and accidental coincidences in the J-PET detector simulated using GATE package

Author

Janusz Kowal, Marcin Zieliński, Marek Palka, Sz. Niedźwiecki, Ewelina Kubicz, Tomasz Kozik, A. Gruntowski, Lech Raczyński, Neha Gupta Sharma, Daria Kamińska, Tomasz Bednarski, Paweł Kowalski, Anna Wieczorek, Paweł Moskal, N. Zoń, J. Bułka, Grzegorz Korcyl, Piotr Salabura, Jerzy Smyrski, Aleksander Gajos, Artur Słomski, I. Wochlik, Piotr Białas, Zbigniew Rudy, Andrzej Kochanowski, Eryk Czerwiński, Wojciech Wiślicki, Michał Silarski, Łukasz Kapłon, Adam Strzelecki, and Wojciech Krzemien

Subjects
Physics, Physics - Instrumentation and Detectors, medicine.diagnostic_test, Scattering, business.industry, Astrophysics::High Energy Astrophysical Phenomena, General Physics and Astronomy, FOS: Physical sciences, Instrumentation and Detectors (physics.ins-det), Scintillator, Pet detector, Optics, Positron emission tomography, medicine, business, ComputingMethodologies_COMPUTERGRAPHICS
Abstract

Novel Positron Emission Tomography system, based on plastic scintillators, is developed by the J-PET collaboration. In order to optimize geometrical configuration of built device, advanced computer simulations are performed. Detailed study is presented of background given by accidental coincidences and multiple scattering of gamma quanta., 18 pages, 16 figures

Published
2015

36. Experimental access to Transition Distribution Amplitudes with the P̄ANDA experiment at FAIR

Author

M. C. Mora Espí, Pawel Marciniewski, K. Makonyi, Yupeng Yan, S. Wronka, D. Pietreanu, Shaji Kumar, N. Belikov, D. I. Glazier, A. Gillitzer, K. Khanchai, Ajay Kumar Rai, M. Steinen, D. Calvo, Yury Tikhonov, A. A. Derevschikov, T. A. Pocheptsov, R.A. Salmin, P. Balanutsa, B. J. Liu, P. N. Deepak, A. E. Blinov, S. Lange, S. Ryzhikov, G. Kalicy, Arpit Parmar, P. Musiol, G. D. Alexeev, D. P. Watts, Lennart Isaksson, Tobias Stockmanns, E. Gutz, P. F. Dalpiaz, Zhi Liu, D. Marchand, S. Grieser, A. Gerhardt, D. Kangh, L. Fava, A. A. Festchenko, Harphool Kumawat, I. Zimmermann, M. Albrecht, B. Krusche, A. Sanchez Lorente, E. A. Strokovsky, M. A. Pasyuk, J. Ritman, P. C. Vinodkumar, T. Quagli, M.G. Sapozhnikov, Ashok Kumar, Herbert Koch, V. I. Astakhov, V. Serdyuk, K. M. von Würtemberg, D. Münchow, Hans-Georg Zaunick, S. Marcello, M. Ullrich, A. Mustafa, Paola Gianotti, T. Kuske, Michaela Thiel, Kamal K. Seth, S. Schlimme, C. Schwarz, M. Savrie, B. Ketzer, Jerzy Smyrski, E. Etzelmüller, A. G. Fedunov, H. Sohlbach, K. Malgorzata, Victor Bobrovnikov, R.Sh. Teshev, L. Ayut, V.M. Abazov, B. Spruck, B. Kamys, D. Mülhheim, Krzysztof Swientek, S. Schadmand, M. V. Korzihik, Zbigniew Rudy, Matei Eugen Vasile, T. Wasem, J. Schwiening, D. Lehmann, M. Patsyuk, Karin Schönning, W. Czyzycki, M. Zühlsdorf, V. N. Goryachev, A. G. Zorin, A. Davidenko, W. Lauth, B. Fröhlich, A. Amoroso, V. Lucherini, P. Schakel, Grzegorz Korcyl, G.A. Mustafaev, Smbat Grigoryan, Ajit Kumar Mohanty, Grzegorz Filo, R. Veenstra, P. Wüstner, J. Marton, Boris Batyunya, L. Ferrero, A. N. Skachkova, Edward Lisowski, I. Garzia, D. Bremer, T. Eissner, D. Lin, Y.M. Goncharenko, Soumen Paul, A.A. Efremov, Dipanwita Dutta, Alberto Rotondi, M. Michel, B. Slowinski, A. Arefiev, Philip Woods, I. Augustin, Yan Liang, A. Karavdina, M. Greco, P. Rosier, Antoni Szczurek, N. Saito, K. Föhl, T. Schröder, B. Singh, Mariana Nanova, Andreas Herten, Oleg V. Missevitch, S.A. Zaporozhets, K.-T. Brinkmann, Sukanta Dash, A. Filippi, A. Trzcinski, Marek Idzik, M. O. Distler, J. Schumann, C. Sowa, I. Konorov, J. C. van der Weele, Mathias Fink, A. E. Yakutin, B. Kopf, E. Atomssa, A. Pitka, R. Karabowicz, H. H. Leithoff, Angelo Rivetti, S. Pornrad, S. Diehl, M. Maggiora, B. Kröck, R. Duchat, O. Levitskaya, Gianluigi Boca, Krzysztof Korcyl, Gianangelo Bracco, Harald Kleines, F. Nerling, L. Caldeira Balkeståhl, S. Coli, E. Perevalova, T. Gessler, Klaus Peters, A. Magiera, Vassili Kachanov, M. Hawryluk, S. Ong, R. Varma, X. Shen, T. Czyzewski, M. Domagala, S. Godre, M. Zyzak, J. Pettersson, F. Uhlig, F. De Mori, P.J.J. Lemmens, Alexander D. Vasiliev, Mohammed Al-Turany, Q. Hu, Andrzej Kupsc, R. Schmitz, P. Mahlberg, P. De Remigis, C. Schnier, S. Lusso, R. Dosdall, L. Zotti, J. Van de Wiele, A. Britting, S. Fissum, Zhigang Li, Jozef Zlomanczuk, Amiran Tomaradze, S. Spataro, U. Müller, R. Valente, V. Uzhinsky, Giulio Stancari, G. S. Shabratova, I. Keshelashvili, S. Jowzaee, Harald Merkel, C. Guaraldo, S. Li, Christian Schmidt, M. Steinacher, V. Kozlov, Yu.N. Rogov, A. Bianconi, T. Held, V. Datar, Andrei Fedorov, H. Orth, T. Weber, A. Kozela, Piotr Salabura, M. Destefanis, Andrea Lavagno, M. Kuhlmann, B. Ma, J. Pychy, Piotr Lebiedowicz, L. Capozza, Dominik Kwiatkowski, Andrew Levin, A. Wilms, Germán Mazza, Matthias Richter, Wojciech Krzemien, Sean A Dobbs, J. Pochodzalla, I. Shein, H. Ohm, Paolo Montagna, Paul Alois Buhler, Y. Naryshkin, Hans Calén, A. Apostolou, S. Orfanitski, V. Grishin, A. Kashchuk, V. Kormilitsin, Tomasz Fiutowski, M. Mingnore, M. Krebs, A. Dolgolenko, E. Fioravanti, P.-E. Tegnér, A. Chlopik, A. Gromliuk, Andreas Lehrach, I. Georgadze, B. Czech, B. Zwieglinski, Kurt Hansen, W. Schäfer, C. Motzko, R. Kunne, P. Genova, J. Lühning, A. Psyzniak, S. Bianco, H. Smit, Nicola Bianchi, Felice Iazzi, J. Rieke, M. Fritsch, R. Dzhygadlo, O. Corell, E. Pace, S. I. Manaenkov, V. Chandratre, S. Sosio, A. Olshevskiy, T. Johansson, S. Sanchez, Concettina Sfienti, R. F. Parodi, D. Walther, T. Saito, E. Köhler, Zhi Sun, Markus Büscher, P. Kulessa, Magnus Wolke, I. Kisel, V. Tokmenin, Alexander Vodopyanov, J.H. Zhao, C. Wang, M. Kube, M. Kavatsyuk, T. Hennino, Johann Zmeskal, V. Varentsov, C. Morales Morales, S. Esch, R. Kliemt, G. Schepers, S. Poslavskiy, Alessandro Drago, Dan Pantea, M. Imre, W. Eyrich, D. Melnychuk, M.P. Bussa, Dirk Grunwald, I. Lehmann, D. Rodríguez Piñeiro, Kjell Fransson, A. P. Onuchin, Valery Dormenev, M. Rossbach, F. E. Maas, Giuseppe Giraudo, M. Pelizäus, D. P. Mohanta, H. Deppe, C. Rosenbaum, M. Cardinali, A. G. Denig, A. Boukharov, V. Abramov, A. Hayrapetyan, K. Pysz, Vladimir Blinov, A. K. Hergemöller, A. Ryazantsev, K. Kalita, P. Wintz, Raghunath Sahoo, V. Akishina, P. A. Semenov, V. Balanutsa, Mikael Lundin, M. M. Macri, Anne-Laure Martin, A. Karmokov, U. Cahit, A. Demekhin, G. Rosner, W. Erni, S. Plueger, S. Leiber, Michael Werner, L. Schmitt, S. Costanza, Bent Schröder, R. Arora, D. Deermann, M. Leyhe, S.A. Kononov, S. Belostotski, Ulrich Wiedner, Maria Krawczyk, L. V. Malinina, M. Tiemens, Yu.M. Mel'nik, Ch. Schmidt, O. Merle, U. Thoma, M. Babai, A. Semenov, R. Maier, Ankhi Roy, Michael Düren, L. V. Nogach, E. Widmann, A. Zhadanov, Valentino Rigato, Stanisław Kistryn, P. Fedorets, K. Suzuki, D. A. Morozov, Franco Bradamante, Torbjörn Bäck, L. Busso, C. Le Galliard, Bhavin Patel, Alessandro Bressan, K. Chinorat, M. Wojciechowski, A. Lehmann, A.F. Makarov, A. Galoyan, P. Wieczorek, T. Holtmann, Bernd Voss, Aleksandra Wrońska, J. S. Díaz, M. Hoek, D. Veretennikov, F. H. Heinsius, P. Brandys, F. Balestra, H. Flemming, F. Lisowski, H. Younis, Paweł Moskal, G. Maniscalco, P. Jasinski, V. K. Rodionov, J. G. Messchendorp, R. Schnell, O. Miklukho, D. Prasuhn, M. Zambrana, M. Kümmel, L. Cao, I. Marishev, A. Bersani, Bo Cederwall, K. Götzen, L. Lavezzi, S. Vejdani, N. G. Minaev, Herbert Löhner, V. Metag, R. W. Novotny, E. Tomasi-Gustafsson, N. B. Skachkov, A. Cebulla, Bartosz Mindur, V. Chernetsky, B. Seitz, Daniel M. Kaplan, E. K. Koshurnikov, B. Ramstein, A. Kulkarni, B. J. Roy, T. Sefzick, D. Khaneft, D. Branford, A. A. Piskun, Reinhard Beck, S. Bleser, Yu. Yu. Lobanov, R. Siudak, V. I. Lobanov, E. A. Kravchenko, S. Bukreeva, A. Samartsev, U. Thöring, F. Feldbauer, Ting Xiao, Patrick Achenbach, Hongwei Liu, Johannes Peter Wessels, D. Bettoni, Yu.I. Davydov, V. I. Dormenev, Genady Gavrilov, Ch. Wendel, M. Yu. Barabanov, Kirill M. Semenov-Tian-Shansky, R. Birsa, T. Bel, Günter Kemmerling, A. Khoukaz, V. Carassiti, B. Galnander, Jifeng Hu, M. Bragadireanu, I. A. Kuyanov, Bruce Yabsley, Andrey V. Izotov, O. Noll, J. Kunkel, A. Dbeyssi, K. Suvorov, Vivekanand Jha, Wolfgang Kuhn, Hasko Stenzel, O. Malyshev, A. A. Sokolov, U. Kurilla, G. Kuhl, D. Kaiser, P. Strzempek, A. Goerres, J. Biernat, D. G. Ireland, H. Xu, M. K. Suleimanov, G. Sterzenbach, E. Prencipe, A. Ortiz, N. I. Zhuravlev, A. Täschner, A. Gerasimov, T. Triffterer, M. Deiseroth, A. Wilson, Marek Palka, M. Lindemulder, A. Y. Barnyakov, V.Kh. Dodokhov, D. Nicmorus, Andrey Uzunian, A. Ehret, R. Nellen, Ch. Hammann, M. Steinke, V. L. Malyshev, P. Drexler, Richard Wheadon, A. Cotta Ramusino, P. Sarin, Riccardo Introzzi, H. Clement, I. Kulakov, M. Zuehlsdorf, M. Galuska, S. Kliczewski, G.B. Pontecorvo, D. Przyborowski, Mihai Caprini, V. V. Mochalov, M. Jadhav, M. Mikirtychyants, M. Traxler, Frank Goldenbaum, Research unit Nuclear & Hadron Physics, The PANDA Collaboration, Null, Singh, B. P, Erni, W., Keshelashvili, I., Krusche, B., Steinacher, M., Liu, B., Liu, H., Liu, Z., Shen, X., Wang, C., Zhao, J., Albrecht, M., Fink, M., Heinsius, F. H., Held, T., Holtmann, T., Koch, H., Kopf, B., Kümmel, M., Kuhl, G., Kuhlmann, M., Leyhe, M., Mikirtychyants, M., Musiol, P., Mustafa, A., Pelizäus, M., Pychy, J., Richter, M., Schnier, C., Schröder, T., Sowa, C., Steinke, M., Triffterer, T., Wiedner, U., Beck, R., Hammann, C., Kaiser, D., Ketzer, B., Kube, M., Mahlberg, P., Rossbach, M., Schmidt, C., Schmitz, R., Thoma, U., Walther, D., Wendel, C., Wilson, A., Bianconi, A., Bragadireanu, M., Caprini, M., Pantea, D., Pietreanu, D., Vasile, M. E., Patel, B., Kaplan, D., Brandys, P., Czyzewski, T., Czyzycki, W., Domagala, M., Hawryluk, M., Filo, G., Krawczyk, M., Kwiatkowski, D., Lisowski, E., Lisowski, F., Fiutowski, T., Idzik, M., Mindur, B., Przyborowski, D., Swientek, K., Czech, B., Kliczewski, S., Korcyl, K., Kozela, A., Kulessa, P., Lebiedowicz, P., Malgorzata, K., Pysz, K., Schäfer, W., Siudak, R., Szczurek, A., Biernat, J., Jowzaee, S., Kamys, B., Kistryn, S., Korcyl, G., Krzemien, W., Magiera, A., Moskal, P., Palka, M., Psyzniak, A., Rudy, Z., Salabura, P., Smyrski, J., Strzempek, P., Wrońska, A., Augustin, I., Lehmann, I., Nicmorus, D., Schepers, G., Schmitt, L., Al Turany, M., Cahit, U., Capozza, L., Dbeyssi, A., Deppe, H., Dzhygadlo, R., Ehret, A., Flemming, H., Gerhardt, A., Götzen, K., Karabowicz, R., Kliemt, R., Kunkel, J., Kurilla, U., Lehmann, D., Lühning, J., Maas, F., Morales Morales, C., Mora Espí, M. C., Nerling, F., Orth, H., Peters, K., Rodríguez Piñeiro, D., Saito, N., Saito, T., Sánchez Lorente, A., Schmidt, C. J., Schwarz, C., Schwiening, J., Traxler, M., Valente, R., Voss, B., Wieczorek, P., Wilms, A., Zühlsdorf, M., Abazov, V. M., Alexeev, G., Arefiev, A., Astakhov, V. I., Barabanov, M. Y. u., Batyunya, B. V., Davydov, Y. u. I., Dodokhov, V. K. h., Efremov, A. A., Fedunov, A. G., Festchenko, A. A., Galoyan, A. S., Grigoryan, S., Karmokov, A., Koshurnikov, E. K., Lobanov, V. I., Lobanov, Y. u. Y. u., Makarov, A. F., Malinina, L. V., Malyshev, V. L., Mustafaev, G. A., Olshevskiy, A., Pasyuk, M. A., Perevalova, E. A., Piskun, A. A., Pocheptsov, T. A., Pontecorvo, G., Rodionov, V. K., Rogov, Y. u. N., Salmin, R. A., Samartsev, A. G., Sapozhnikov, M. G., Shabratova, G. S., Skachkov, N. B., Skachkova, A. N., Strokovsky, E. A., Suleimanov, M. K., Teshev, R. S. h., Tokmenin, V. V., Uzhinsky, V. V., Vodopyanov, A. S., Zaporozhets, S. A., Zhuravlev, N. I., Zorin, A. G., Branford, D., Glazier, D., Watts, D., Woods, P., Britting, A., Eyrich, W., Lehmann, A., Uhlig, F., Dobbs, S., Seth, K., Tomaradze, A., Xiao, T., Bettoni, D., Carassiti, V., Cotta Ramusino, A., Dalpiaz, P., Drago, A., Fioravanti, E., Garzia, I., Savriè, M., Stancari, G., Akishina, V., Kisel, I., Kulakov, I., Zyzak, M., Arora, R., Bel, T., Gromliuk, A., Kalicy, G., Krebs, M., Patsyuk, M., Zuehlsdorf, M., Bianchi, N., Gianotti, P., Guaraldo, C., Lucherini, V., Pace, E., Bersani, A., Bracco, G., Macri, M., Parodi, R. F., Bianco, S., Bremer, D., Brinkmann, K. T., Diehl, S., Dormenev, V., Drexler, P., Düren, M., Eissner, T., Etzelmüller, E., Föhl, K., Galuska, M., Gessler, T., Gutz, E., Hayrapetyan, A., Hu, J., Kröck, B., Kühn, W., Kuske, T., Lange, S., Liang, Y., Merle, O., Metag, V., Mülhheim, D., Münchow, D., Nanova, M., Novotny, R., Pitka, A., Quagli, T., Rieke, J., Rosenbaum, C., Schnell, R., Spruck, B., Stenzel, H., Thöring, U., Ullrich, M., Wasem, T., Werner, M., Zaunick, H. G., Ireland, D., Rosner, G., Seitz, B., Deepak, P. N., Kulkarni, A. V., Apostolou, A., Babai, M., Kavatsyuk, M., Lemmens, P., Lindemulder, M., Löhner, H., Messchendorp, J., Schakel, P., Smit, H., van der Weele, J. C., Tiemens, M., Veenstra, R., Vejdani, S., Kalita, K., Mohanta, D. P., Kumar, A., Roy, A., Sahoo, R., Sohlbach, H., Büscher, M., Cao, L., Cebulla, A., Deermann, D., Dosdall, R., Esch, S., Georgadze, I., Gillitzer, A., Goerres, A., Goldenbaum, F., Grunwald, D., Herten, A., Hu, Q., Kemmerling, G., Kleines, H., Kozlov, V., Lehrach, A., Leiber, S., Maier, R., Nellen, R., Ohm, H., Orfanitski, S., Prasuhn, D., Prencipe, E., Ritman, J., Schadmand, S., Schumann, J., Sefzick, T., Serdyuk, V., Sterzenbach, G., Stockmanns, T., Wintz, P., Wüstner, P., Xu, H., Li, S., Li, Z., Sun, Z., Rigato, V., Fissum, S., Hansen, K., Isaksson, L., Lundin, M., Schröder, B., Achenbach, P., Bleser, S., Cardinali, M., Corell, O., Deiseroth, M., Denig, A., Distler, M., Feldbauer, F., Fritsch, M., Jasinski, P., Hoek, M., Kangh, D., Karavdina, A., Lauth, W., Leithoff, H., Merkel, H., Michel, M., Motzko, C., Müller, U., Noll, O., Plueger, S., Pochodzalla, J., Sanchez, S., Schlimme, S., Sfienti, C., Steinen, M., Thiel, M., Weber, T., Zambrana, M., Dormenev, V. I., Fedorov, A. A., Korzihik, M. V., Missevitch, O. V., Balanutsa, P., Balanutsa, V., Chernetsky, V., Demekhin, A., Dolgolenko, A., Fedorets, P., Gerasimov, A., Goryachev, V., Varentsov, V., Boukharov, A., Malyshev, O., Marishev, I., Semenov, A., Konorov, I., Paul, S., Grieser, S., Hergemöller, A. K., Khoukaz, A., Köhler, E., Täschner, A., Wessels, J., Dash, S., Jadhav, M., Kumar, S., Sarin, P., Varma, R., Chandratre, V. B., Datar, V., Dutta, D., Jha, V., Kumawat, H., Mohanty, A. K., Roy, B., Yan, Y., Chinorat, K., Khanchai, K., Ayut, L., Pornrad, S., Barnyakov, A. Y., Blinov, A. E., Blinov, V. E., Bobrovnikov, V. S., Kononov, S. A., Kravchenko, E. A., Kuyanov, I. A., Onuchin, A. P., Sokolov, A. A., Tikhonov, Y. A., Atomssa, E., Hennino, T., Imre, M., Kunne, R., Le Galliard, C., Ma, B., Marchand, D., Ong, S., Ramstein, B., Rosier, P., Tomasi Gustafsson, E., Van de Wiele, J., Boca, G., Costanza, S., Genova, P., Lavezzi, L., Montagna, P., Rotondi, A., Abramov, V., Belikov, N., Bukreeva, S., Davidenko, A., Derevschikov, A., Goncharenko, Y., Grishin, V., Kachanov, V., Kormilitsin, V., Melnik, Y., Levin, A., Minaev, N., Mochalov, V., Morozov, D., Nogach, L., Poslavskiy, S., Ryazantsev, A., Ryzhikov, S., Semenov, P., Shein, I., Uzunian, A., Vasiliev, A., Yakutin, A., Yabsley, B., Bäck, T., Cederwall, B., Makónyi, K., Tegnér, P. E., von Würtemberg, K. M., Belostotski, S., Gavrilov, G., Izotov, A., Kashchuk, A., Levitskaya, O., Manaenkov, S., Miklukho, O., Naryshkin, Y., Suvorov, K., Veretennikov, D., Zhadanov, A., Rai, A. K., Godre, S. S., Duchat, R., Amoroso, A., Bussa, M. P., Busso, L., De Mori, F., Destefanis, M., Fava, L., Ferrero, L., Greco, M., Maggiora, M., Maniscalco, G., Marcello, S., Sosio, S., Spataro, S., Zotti, L., Calvo, D., Coli, S., De Remigis, P., Filippi, A., Giraudo, G., Lusso, S., Mazza, G., Mingnore, M., Rivetti, A., Wheadon, R., Balestra, F., Iazzi, F., Introzzi, R., Lavagno, A., Younis, H., Birsa, Renato, Bradamante, Franco, Bressan, Andrea, Martin, Anna, Clement, H., Gålnander, B., Caldeira Balkeståhl, L., Calén, H., Fransson, K., Johansson, T., Kupsc, A., Marciniewski, P., Pettersson, J., Schönning, K., Wolke, M., Zlomanczuk, J., Díaz, J., Ortiz, A., Vinodkumar, P. C., Parmar, A., Chlopik, A., Melnychuk, D., Slowinski, B., Trzcinski, A., Wojciechowski, M., Wronka, S., Zwieglinski, B., Bühler, P., Marton, J., Suzuki, K., Widmann, E., Zmeskal, J., Fröhlich, B., Khaneft, D., Lin, D., Zimmermann, I., and Semenov Tian Shansky, K.

Subjects
Particle physics, (P)Over-Baranda, Nuclear and High Energy Physics, Electroproduction, Hadron, Annihilation, FOS: Physical sciences, 7. Clean energy, 01 natural sciences, Particle identification, Nucleon, NO, Nuclear physics, High Energy Physics - Experiment (hep-ex), High Energy Physics - Phenomenology (hep-ph), Factorization, 0103 physical sciences, Fysik, Invariant mass, ddc:530, Meson Production, Monte-Carlo, Nuclear Experiment (nucl-ex), 010306 general physics, Nuclear Experiment, Physics, Quantum chromodynamics, 010308 nuclear & particles physics, Perturbative QCD, Qcd, Physical Sciences, Exclusive Processes, High Energy Physics::Experiment, Pi(0), Cross-Sections, Energy (signal processing)
Abstract

Baryon-to-meson Transition Distribution Amplitudes (TDAs) encoding valuable new information on hadron structure appear as building blocks in the collinear factorized description for several types of hard exclusive reactions. In this paper, we address the possibility of accessing nucleon-to-pion ($��N$) TDAs from $\bar{p}p \to e^+e^- ��^0$ reaction with the future PANDA detector at the FAIR facility. At high center of mass energy and high invariant mass squared of the lepton pair $q^2$, the amplitude of the signal channel $\bar{p}p \to e^+e^- ��^0$ admits a QCD factorized description in terms of $��N$ TDAs and nucleon Distribution Amplitudes (DAs) in the forward and backward kinematic regimes. Assuming the validity of this factorized description, we perform feasibility studies for measuring $\bar{p}p \to e^+e^- ��^0$ with the PANDA detector. Detailed simulations on signal reconstruction efficiency as well as on rejection of the most severe background channel, i.e. $\bar{p}p \to ��^+��^- ��^0$ were performed for the center of mass energy squared $s = 5$ GeV$^2$ and $s = 10$ GeV$^2$, in the kinematic regions $3.0 < q^2 < 4.3$ GeV$^2$ and $5 < q^2 < 9$ GeV$^2$, respectively, with a neutral pion scattered in the forward or backward cone $| \cos��_{��^0}| > 0.5 $ in the proton-antiproton center of mass frame. Results of the simulation show that the particle identification capabilities of the PANDA detector will allow to achieve a background rejection factor of $5\cdot 10^7$ ($1\cdot 10^7$) at low (high) $q^2$ for $s=5$ GeV$^2$, and of $1\cdot 10^8$ ($6\cdot 10^6$) at low (high) $q^2$ for $s=10$ GeV$^2$, while keeping the signal reconstruction efficiency at around $40\%$. At both energies, a clean lepton signal can be reconstructed with the expected statistics corresponding to $2$ fb$^{-1}$ of integrated luminosity. (.../...), 19 pages, 7 figures (some multiple), 2 tables (each double), preprint of an article for epj - v2

Published
2015

37. Di-electron measurements in C+C reactions at with HADES

Author

M. Jaskula, Y. C. Pachmayer, R. Holzmann, J. Markert, L.M. Pant, J. A. Garzón, C. Maiolino, Tatiana Karavicheva, V. T. Smolyankin, B. Ramstein, I. Iori, I. Fröhlich, J. Mousa, James Ritman, Jaroslav Bielcik, Joachim Stroth, R. Krücken, Roman Gernhäuser, M. Jurkovic, Paolo Finocchiaro, J. L. Boyard, O. V. Fateev, C. Agodi, F. Dohrmann, Piotr Salabura, B. Kämpfer, R. Novotny, Yu.V. Zanevsky, H. Alvarez-Pol, R. Djeridi, T. Pérez, G. Agakishiev, Piera Sapienza, S. Hlavac, A.P. Ierusalimov, R. Pleskac, Laura Fabbietti, M. Münch, G. Bellia, J. Novotný, Wolfgang Kuhn, R.S. Simon, M. Sánchez, I. Koenig, A. Toia, T. Christ, A. Rustamov, F. Guber, M. Wiśniowski, A. Sadovsky, P. Tlustý, V. Pospíšil, C. Sturm, S. P. Chernenko, Volker Metag, M. Roy-Stephan, M. B. Golubeva, N. Rabin, P. Zumbruch, T. Hennino, A. B. Kurepin, R. Kulessa, M. Böhmer, D. González-Díaz, A. Kugler, R. Coniglione, A. Balanda, R. Kotte, M. Traxler, B. Sailer, J. Kotulic-Bunta, V. Wagner, M. Sudol, J. Wüstenfeld, E. Grosse, B. W. Kolb, J. Otwinowski, Kalliopi Kanaki, Thomas Eberl, H. Tsertos, Peter Braun-Munzinger, W. Koenig, L. Naumann, V. Pechenov, H. Stroebele, C. Müntz, L. Smykov, I. Duran, J. Pietraszko, A. M. Schmah, S. Spataro, S. Lang, Andrey Reshetin, B. Spruck, J. Lehnert, J. Friese, T. Wojcik, D. Žovinec, and Witold Przygoda

Subjects
Physics, Nuclear and High Energy Physics, Particle physics, Spectrometer, 010308 nuclear & particles physics, Hadron, Detector, Electron, Invariant (physics), Nuclear matter, 01 natural sciences, 7. Clean energy, Nuclear physics, 0103 physical sciences, Nuclear Experiment, 010306 general physics, Analysis method
Abstract

The High Acceptance DiElectron Spectrometer HADES has been recently commissioned at GSI, Darmstadt. It has been designed for systematic studies of hadron properties inside nuclear matter. We report first preliminary results on invariant masses e + e - -pairs which were measured in 12 C + 12 C collisions at E kin = 2 GeV ⋅ A . The analysis methods are briefly outlined and a comparison with detailed Monte-Carlo simulations is shown.

Published
2005

38. Design of the forward straw tube tracker for the PANDA experiment

Author

J. Ritman, D. Przyborowski, Jerzy Smyrski, Witold Przygoda, Edward Lisowski, Grzegorz Filo, Aleksandra Wrońska, A. Apostolou, E. Fioravanti, P. Strzempek, J. Biernat, Krzysztof Swientek, M. Savrie, Piotr Salabura, P. Wintz, Grzegorz Korcyl, J. Płażek, F. Lisowski, W. Czyzycki, Marek Idzik, Paola Gianotti, Krzysztof Korcyl, and Tomasz Fiutowski

Subjects
Straw tube, Physics, Optics, 010308 nuclear & particles physics, business.industry, 0103 physical sciences, Mechanical engineering, 010306 general physics, business, 01 natural sciences, Instrumentation, Mathematical Physics
Published
2017

39. Hades experiment probing baryonic matter at SIS18 overview of results

Author

Piotr Salabura

Subjects
Physics, Range (particle radiation), Particle physics, Proton, Ion beam, 010308 nuclear & particles physics, QC1-999, Nuclear Theory, Strangeness, Nuclear matter, 01 natural sciences, Ion, Nuclear physics, Baryon, Pion, 0103 physical sciences, Physics::Accelerator Physics, Nuclear Experiment, 010306 general physics
Abstract

HADES experiment at GSI is the only high precision experiment probing nuclear matter in the beam energy range of a few AGeV. Pion, proton and ion beams are used to study rare dielectron and strangeness probes to diagnose properties of strongly interacting matter in this energy regime. Selected results from p + A and A + A collisions are presented and discussed.

Published
2017

40. Novel method for hit-position reconstruction using voltage signals in plastic scintillators and its application to Positron Emission Tomography

Author

Tomasz Bednarski, Anna Wieczorek, Piotr Salabura, Ewelina Kubicz, Janusz Kowal, Marcin Zieliński, Marek Palka, Wojciech Wiślicki, Jerzy Smyrski, Zbigniew Rudy, Łukasz Kapłon, Marcin Molenda, Michał Silarski, Adam Strzelecki, Andrzej Kochanowski, Eryk Czerwiński, I. Moskal, Sz. Niedźwiecki, Paweł Moskal, N. Zoń, Lech Raczyński, Neha Gupta Sharma, Tomasz Kozik, Wojciech Krzemien, Paweł Kowalski, Grzegorz Korcyl, Piotr Białas, Monika Pawlik-Niedźwiecka, and Artur Słomski

Subjects
Nuclear and High Energy Physics, medicine.medical_specialty, Photomultiplier, Physics - Instrumentation and Detectors, Physics::Instrumentation and Detectors, Physics::Medical Physics, FOS: Physical sciences, Scintillator, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), Optics, Positron, statistical analysis, Sampling (signal processing), medicine, Waveform, Medical physics, plastic scintillators, Instrumentation, Image resolution, Physics, business.industry, Detector, Instrumentation and Detectors (physics.ins-det), Scintillation counter, business, Positron Emission Tomography
Abstract

Currently inorganic scintillator detectors are used in all commercial Time of Flight Positron Emission Tomograph (TOF-PET) devices. The J-PET collaboration investigates a possibility of construction of a PET scanner from plastic scintillators which would allow for single bed imaging of the whole human body. This paper describes a novel method of hit-position reconstruction based on sampled signals and an example of an application of the method for a single module with a 30 cm long plastic strip, read out on both ends by Hamamatsu R4998 photomultipliers. The sampling scheme to generate a vector with samples of a PET event waveform with respect to four user-defined amplitudes is introduced. The experimental setup provides irradiation of a chosen position in the plastic scintillator strip with an annihilation gamma quanta of energy 511 keV. The statistical test for a multivariate normal (MVN) distribution of measured vectors at a given position is developed, and it is shown that signals sampled at four thresholds in a voltage domain are approximately normally distributed variables. With the presented method of a vector analysis made out of waveform samples acquired with four thresholds, we obtain a spatial resolution of about 1 cm and a timing resolution of about 80 ps ( σ).

Published
2014

41. Electromagnetic calorimeter for the HADES@FAIR experiment

Author

W Czyžycki, Laura Fabbietti, Piotr Salabura, A. Kugler, P. Tlusty, Christoph Blume, W. Koenig, J. Pietraszko, Tetyana Galatyuk, S. Hlavac, M. Kajetanowic, F. Guber, B Kardan, Edward Lisowski, K. Lapidus, A Reshetin, A. Ivashkin, Yu. G. Sobolev, M. Traxler, A. Rost, O. Svoboda, M. B. Golubeva, and E. Epple

Subjects
Physics, Photomultiplier, Photon, Spectrometer, Physics::Instrumentation and Detectors, calorimeters, Pulse generator, Detector, Synchrotron, Calorimeter, law.invention, Nuclear physics, cherenkov detectors, law, Nuclear Experiment, front-end electronics for detector readout, Instrumentation, Mathematical Physics, Cherenkov radiation
Abstract

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.

Published
2014

42. J-PET analysis framework for the prototype TOF-PET detector

Author

L. Raczyński, Artur Słomski, Zbigniew Rudy, Adam Strzelecki, Tomasz Bednarski, M. Pawlik, Andrzej Kochanowski, Eryk Czerwiński, Sz. Niedźwiecki, Piotr Białas, Michał Silarski, Neha Gupta Sharma, Paweł Moskal, N. Zoń, Grzegorz Korcyl, Marcin Zieliński, Marek Palka, K. Stola, Jakub Kowal, Paweł Kowalski, Piotr Salabura, Tomasz Kozik, D. Trybek, Wojciech Krzemien, Łukasz Kapłon, Wojciech Wiślicki, Jerzy Smyrski, and Marcin Molenda

Subjects
Scanner, Physics - Instrumentation and Detectors, General Computer Science, Computer science, business.industry, Detector, ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION, FOS: Physical sciences, Medicine (miscellaneous), Health Informatics, Instrumentation and Detectors (physics.ins-det), Physics - Medical Physics, Biochemistry, Genetics and Molecular Biology (miscellaneous), Software, STRIP-PET, PHY, Physics - Data Analysis, Statistics and Probability, Computer vision, analysis framework, Medical Physics (physics.med-ph), Positron emission, Artificial intelligence, Particle physics experiments, business, Data Analysis, Statistics and Probability (physics.data-an)
Abstract

Novel TOF-PET scanner solutions demand, apart from the state of the art detectors, software for fast processing of the gathered data, monitoring of the whole scanner and reconstruction of the PET image. In this article we present an analysis framework for the novel STRIP-PET scanner developed by the J-PET collaboration in the Institute of Physics of the Jagiellonian University. This software is based on the ROOT package used in many particle physics experiments., Comment: 4 pages, 2 figures

Published
2014

43. A novel method for calibration and monitoring of time synchronization of TOF-PET scanners by means of cosmic rays

Author

Marcin Zieliński, Tomasz Bednarski, Sz. Niedźwiecki, Marek Palka, Grzegorz Korcyl, Wojciech Krzemien, Michał Silarski, Adam Strzelecki, M. Pawlik, Tomasz Kozik, Jakub Kowal, Jerzy Smyrski, Artur Słomski, Łukasz Kapłon, Neha Gupta Sharma, Zbigniew Rudy, Andrzej Kochanowski, Wojciech Wiślicki, Eryk Czerwiński, Paweł Moskal, N. Zoń, L. Raczyński, Marcin Molenda, Piotr Salabura, Piotr Białas, and Paweł Kowalski

Subjects
Scanner, Physics - Instrumentation and Detectors, General Computer Science, Computer science, Physics::Instrumentation and Detectors, Physics::Medical Physics, FOS: Physical sciences, Medicine (miscellaneous), Health Informatics, Cosmic ray, Scintillator, Biochemistry, Genetics and Molecular Biology (miscellaneous), Optics, cosmic rays, medicine, Calibration, TOF-PET calibration, Monitoring methods, Nuclear Experiment (nucl-ex), Nuclear Experiment, Time synchronization, medicine.diagnostic_test, business.industry, Detector, Instrumentation and Detectors (physics.ins-det), Physics - Medical Physics, Positron emission tomography, Physics::Accelerator Physics, Medical Physics (physics.med-ph), business
Abstract

All of the present methods for calibration and monitoring of TOF-PET scanner detectors utilize radioactive isotopes such as e.g. $^{22}$Na or $^{68}$Ge, which are placed or rotate inside the scanner. In this article we describe a novel method based on the cosmic rays application to the PET calibration and monitoring methods. The concept allows to overcome many of the drawbacks of the present methods and it is well suited for newly developed TOF-PET scanners with a large longitudinal field of view. The method enables also monitoring of the quality of the scintillator materials and in general allows for the continuous quality assurance of the PET detector performance., Comment: 10 pages, 7 figures

Published
2014

44. Test of a single module of the J-PET scanner based on plastic scintillators

Author

Marcin Molenda, I. Moskal, Monika Pawlik-Niedźwiecka, Zbigniew Rudy, Aleksander Gajos, Tomasz Kozik, Paweł Kowalski, Wojciech Krzemien, Grzegorz Korcyl, Wojciech Wiślicki, Jerzy Smyrski, Piotr Białas, Andrzej Kochanowski, Marcin Zieliński, Eryk Czerwiński, Adam Strzelecki, Michał Silarski, Paweł Moskal, N. Zoń, Łukasz Kapłon, Tomasz Bednarski, Anna Wieczorek, Sz. Niedźwiecki, Marek Palka, Artur Słomski, Lech Raczyński, Neha Gupta Sharma, Piotr Salabura, Ewelina Kubicz, and Janusz Kowal

Subjects
Nuclear and High Energy Physics, Photomultiplier, Physics - Instrumentation and Detectors, Physics::Instrumentation and Detectors, J-PET, FOS: Physical sciences, Scintillator, Particle detector, Collimated light, High Energy Physics - Experiment, Nuclear physics, High Energy Physics - Experiment (hep-ex), Optics, Nuclear Experiment (nucl-ex), Nuclear Experiment, Instrumentation, Image resolution, Physics, business.industry, Compton scattering, Instrumentation and Detectors (physics.ins-det), Physics - Medical Physics, Time of flight, scintillator detectors, Scintillation counter, Medical Physics (physics.med-ph), business, Positron Emission Tomography
Abstract

Time of Flight Positron Emission Tomography scanner based on plastic scintillators is being developed at the Jagiellonian University by the J-PET collaboration. The main challenge of the conducted research lies in the elaboration of a method allowing application of plastic scintillators for the detection of low energy gamma quanta. In this article we report on tests of a single detection module built out from BC-420 plastic scintillator strip (with dimensions of 5x19x300mm^3) read out at two ends by Hamamatsu R5320 photomultipliers. The measurements were performed using collimated beam of annihilation quanta from the 68Ge isotope and applying the Serial Data Analyzer (Lecroy SDA6000A) which enabled sampling of signals with 50ps intervals. The time resolution of the prototype module was established to be better than 80ps (sigma) for a single level discrimination. The spatial resolution of the determination of the hit position along the strip was determined to be about 0.93cm (sigma) for the annihilation quanta. The fractional energy resolution for the energy E deposited by the annihilation quanta via the Compton scattering amounts to sigma(E)/E = 0.044/sqrt(E[MeV]) and corresponds to the sigma(E)/E of 7.5% at the Compton edge., Comment: 12 pages, 6 figures; Updated with editorial corrections related to publication in NIM A

Published
2014
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45. Trigger-less and reconfigurable data acquisition system for positron emission tomography

Author

Marcin Zieliński, Marcin Molenda, Łukasz Kapłon, Lech Raczyński, Michał Silarski, Jakub Kowal, Paweł Kowalski, Wojciech Wiślicki, N. Gupta-Sharma, M. Pawlik, Wojciech Krzemien, Marek Palka, Zbigniew Rudy, Piotr Białas, Andrzej Kochanowski, Eryk Czerwiński, Szymon Niedźwiecki, Piotr Salabura, Jerzy Smyrski, Grzegorz Korcyl, Tomasz Bednarski, Artur Słomski, Paweł Moskal, N. Zoń, Tomasz Kozik, and Adam Strzelecki

Subjects
Continuous registration, Data collection, General Computer Science, medicine.diagnostic_test, business.industry, Computer science, Detector, Physics::Medical Physics, ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION, Medicine (miscellaneous), Health Informatics, trigger, Biochemistry, Genetics and Molecular Biology (miscellaneous), DAQ, Analog signal, Data acquisition, PET, Positron emission tomography, Embedded system, medicine, business, Field-programmable gate array, Computer hardware, Emission computed tomography, FPGA
Abstract

This article is focused on data acquisition system (DAQ) designed especially to be used in positron emission tomography (PET) or single-photon emission computed tomography. The system allows for continuous registration of analog signals during measurement. It has been designed to optimize registration and processing of the information carried by signals from the detector system in PET scanner. The processing does not require any rejection of data with a trigger system. The proposed system possesses also an ability to implement various data analysis algorithms that can be performed in real time during data collection.

Published
2014

46. Calibration of photomultipliers gain used in the J-PET detector

Author

Sz. Niedźwiecki, Zbigniew Rudy, Paweł Moskal, N. Zoń, Piotr Salabura, Andrzej Kochanowski, Eryk Czerwiński, Marcin Molenda, Neha Gupta Sharma, Wojciech Wiślicki, Adam Strzelecki, Tomasz Bednarski, Grzegorz Korcyl, Marek Palka, Krzysztof Giergiel, Konrad Szymański, Jakub Kowal, Piotr Białas, M. Pawlik, Jerzy Smyrski, Michał Silarski, Wojciech Krzemien, Artur Słomski, Piotr Witkowski, L. Raczyński, Łukasz Kapłon, Tomasz Kozik, Paweł Kowalski, I. Moskal, and Marcin Zieliński

Subjects
Physics, Scanner, Photomultiplier, single photo-electron, Physics - Instrumentation and Detectors, General Computer Science, Calibration curve, business.industry, photomultiplier calibration, Medicine (miscellaneous), FOS: Physical sciences, Health Informatics, Instrumentation and Detectors (physics.ins-det), Scintillator, Biochemistry, Genetics and Molecular Biology (miscellaneous), Physics - Medical Physics, Pet detector, Optics, Pet scanner, Calibration, Medical Physics (physics.med-ph), Nuclear Experiment (nucl-ex), business, Nuclear Experiment
Abstract

Photomultipliers are commonly used in commercial PET scanner as devices which convert light produced in scintillator by gamma quanta from positron-electron annihilation into electrical signal. For proper analysis of obtained electrical signal, a photomultiplier gain curve must be known, since gain can be significantly different even between photomultipliers of the same model. In this article we describe single photoelectron method used for photomultipliers calibration applied for J-PET scanner, a novel PET detector being developed at the Jagiellonian University. Description of calibration method, an example of calibration curve and gain of few R4998 Hamamatsu photomultipliers are presented., Submitted to Bio-Algorithms and Med-Systems (12 pages, 6 figures)

Published
2014

47. Computing support for advanced medical data analysis and imaging

Author

Marcin Zieliński, Monika Pawlik-Niedźwiecka, Tomasz Bednarski, Anna Wieczorek, Paweł Moskal, N. Zoń, Jakub Kowal, Piotr Salabura, Grzegorz Korcyl, Lech Raczyński, Neha Gupta Sharma, Paweł Kowalski, Adam Strzelecki, Tomasz Kozik, Piotr Białas, Marek Palka, Artur Słomski, Michał Silarski, Zbigniew Rudy, Andrzej Kochanowski, Eryk Czerwiński, Szymon Niedźwiecki, Jerzy Smyrski, Łukasz Kapłon, Wojciech Krzemien, Wojciech Wiślicki, and Marcin Molenda

Subjects
FOS: Computer and information sciences, Scanner, Physics - Instrumentation and Detectors, positron emission tomography, General Computer Science, Computer science, computer.internet_protocol, Computer Vision and Pattern Recognition (cs.CV), Real-time computing, Physics::Medical Physics, Computer Science - Computer Vision and Pattern Recognition, ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION, Medicine (miscellaneous), FOS: Physical sciences, Health Informatics, Cloud computing, Iterative reconstruction, Biochemistry, Genetics and Molecular Biology (miscellaneous), business.industry, high-performance computing, Service-oriented architecture, Instrumentation and Detectors (physics.ins-det), Computational Physics (physics.comp-ph), Grid, Supercomputer, Physics - Medical Physics, medical image reconstruction, Computer Science - Distributed, Parallel, and Cluster Computing, Distributed, Parallel, and Cluster Computing (cs.DC), Medical Physics (physics.med-ph), business, computer, Physics - Computational Physics
Abstract

We discuss computing issues for data analysis and image reconstruction of PET-TOF medical scanner or other medical scanning devices producing large volumes of data. Service architecture based on the grid and cloud concepts for distributed processing is proposed and critically discussed., Comment: 9 p, 3 figs, based on talk given at Symposium on Positron Emission Tomography, Sept. 19-22, 2013, Jagiellonian University, Krak\'ow, Pl

Published
2014

48. List-mode reconstruction in 2D strip PET

Author

Adam Strzelecki, Marcin Zieliński, Marcin Molenda, Marek Palka, Łukasz Kapłon, Wojciech Wiślicki, Krzysztof Giergiel, Konrad Szymański, Jakub Kowal, Zbigniew Rudy, Neha Gupta Sharma, Piotr Białas, Andrzej Kochanowski, Paweł Moskal, Tomasz Bednarski, Eryk Czerwiński, Wojciech Krzemien, N. Zoń, Paweł Kowalski, Szymon Niedźwiecki, Piotr Salabura, Tomasz Kozik, I. Moskal, Artur Słomski, Michał Silarski, Grzegorz Korcyl, M. Pawlik, Piotr Witkowski, L. Raczyński, and Jerzy Smyrski

Subjects
Physics, General Computer Science, medicine.diagnostic_test, Physics::Instrumentation and Detectors, Maximum likelihood, Detector, Physics::Medical Physics, MLEM, Medicine (miscellaneous), Health Informatics, Scintillator, image reconstruction, Biochemistry, Genetics and Molecular Biology (miscellaneous), List mode, Positron emission tomography, Computer graphics (images), Kernel (statistics), medicine, Algorithm, Monte Carlo simulation
Abstract

Using a theory of list-mode maximum likelihood expectation-maximization (MLEM) algorithm, in this contribution, we present a derivation of the system response kernel for a novel positron emission tomography (PET) detector based on plastic scintillators.

Published
2014

49. Database and data structure for the novel TOF-PET detector developed for J-PET project

Author

W. Wislicki, L. Kaplon, Piotr Białas, Szymon Niedzwiecki, Tomasz Kozik, Tomasz Bednarski, Marcin Molenda, Anna Wieczorek, Jerzy Smyrski, N. Gupta-Sharma, Adam Strzelecki, Paweł Moskal, N. Zoń, Piotr Salabura, Paweł Kowalski, Michał Silarski, Artur Słomski, Zbigniew Rudy, M. Pawlik-Niedzwiecka, Marcin Zieliński, Andrzej Kochanowski, Jakub Kowal, Eryk Czerwiński, Grzegorz Korcyl, Wojciech Krzemien, Ewelina Kubicz, Lech Raczyński, and Marek Palka

Subjects
Physics - Instrumentation and Detectors, General Computer Science, business.industry, Computer science, Detector, ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION, Medicine (miscellaneous), FOS: Physical sciences, Health Informatics, Instrumentation and Detectors (physics.ins-det), Data structure, Biochemistry, Genetics and Molecular Biology (miscellaneous), DAQ, Data acquisition, Computer vision, positron emission tomography (PET), Artificial intelligence, business, database, scintillating detectors
Abstract

The complexity of the hardware and the amount of data collected during the PET imaging process require application of modern methods of efficient data organization and processing. In this article we will discuss the data structures and the flow of collected data from the novel TOF-PET medical scanner which is being developed at the Jagiellonian University. The developed data format reflects: registration process of the gamma quanta emitted from positron-electron annihilation, Front-End Electronic (FEE) structure and required input information for the image reconstruction. In addition, the system database fulfills possible demands of the evolving J-PET project., Comment: 6 p, 3 figs, based on talk given at Symposium on Positron Emission Tomography, Sept. 19-22, 2013, Jagiellonian University, Krak\'ow PL, submitted to Bio-Algorithms and Med-Systems

Published
2014
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50. Development of a fast pad readout system for the HADES shower detector

Author

J. Pietraszko, W. Waluś, Piotr Salabura, M. Kajetanowicz, M. Petri, R. Kulessa, M. Debowski, M. Jaskula, K. Korcyl, J. Foryciarz, L. Kidon, J. Otwinowski, W. Prokopowicz, A. Skoczeń, A Ratajczak, E. Wajda, A. Malarz, E. Lubkiewicz, A Balanda, and Wolfgang Kuhn

Subjects
Physics, Nuclear and High Energy Physics, Wire chamber, Physics::Instrumentation and Detectors, business.industry, Optical link, Detector, Astrophysics::Instrumentation and Methods for Astrophysics, Multiplexing, Application-specific integrated circuit, business, Instrumentation, Computer hardware, Charge amplifier, Data rate units, Data transmission
Abstract

The paper presents the readout system for the 18432 channels of the HADES shower detector. The readout system consists of an analog front-end ASIC for the readout of the pad multiwire chamber, a readout controller board, the so-called readout board for collection and digitization of the analog information from the ASIC and an optical link system for the data transfer. The readout system is designed to cope with event rate of 105 events/s and a data transfer rate of 1.9 Gbyte/s. Utilizing a multistage fast multiplexing system, the cost per channel is kept on the level of $5. Recent results from a test experiment confirm the intended performance of the readout system. ( 1998 Elsevier Science B.V. All rights reserved.

Published
1998

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