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

Author: Joanna Plazek, Jerzy Smyrski, Piotr Salabura, Witold Przygoda, and Krzysztof Korcyl
Published: 2021
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2. The potential of $\varLambda $ and $\varXi ^-$ studies with PANDA at FAIR

Author: M. Sachs, I. K. Keshk, Xi-Guang Cao, M. Traxler, Yan Liang, G. Mazza, C. Fritzsch, T. Holtmann, S. Godre, A. N. Skachkova, Edward Lisowski, E. Rosenthal, S. Yogesh, Y. K. Sun, H. Pace, D. A. Morozov, H. Deppe, J. Pütz, A. G. Denig, S. Ryzhikov, Hans-Georg Zaunick, Dirk Grunwald, A. Kantsyrev, Paolo Mengucci, Christoph Herold, P. Eugenio, Grzegorz Filo, A. Boukharov, M. Kesselkaul, Concettina Sfienti, A. Kulkarni, M. Lattery, J. Frech, A. Hayrapetyan, W. Zhu, A. A. Piskun, Zbigniew Rudy, V. E. Blinov, S. Spataro, Jens Hartmann, S. Schlimme, D. Branford, C. Schwarz, Michaela Thiel, G. Golovanov, T. Wasem, J. Schwiening, P. Wieczorek, E. Pyata, Ch. Hammann, D. Lehmann, Chinorat Kobdaj, V. Moiseev, P. Balanutsa, B. J. Liu, S. Bodenschatz, F. E. Maas, N. Wongprachanukul, Lorenzo Scalise, M. Hoek, A. K. Saxena, M. Virius, M. Steinke, N. Rathod, A.A. Efremov, A. Samartsev, I. Shein, Alexander Olshevskiy, Herbert Koch, V. Panjushkin, K. Nowakowski, S. Belostotski, S. Bukreeva, Ulrich Wiedner, U. Thöring, A.S. Vodopianov, J. Kellers, L. Robison, Ting Xiao, V. Crede, Egle Tomasi-Gustafsson, R. Karabowicz, P. Srisawad, F. Feldbauer, J. Reher, D. Kazlou, M. Yu. Barabanov, W. Kühn, M. Steinen, P. Wintz, D. Wölbing, A. Dbeyssi, M. Kunze, C. Hargens, A. Pitka, A. Lehmann, I. Augustin, Mathias Fink, P. Terlecki, A. E. Yakutin, Magnus Wolke, I. Kisel, V. Varentsov, U. Thoma, Nicola Bianchi, D. Bettoni, Antoni Szczurek, Dan Pantea, M. Slunecka, D. I. Glazier, H. H. Leithoff, Genady Gavrilov, P. Jiang, T. Simantathammakul, Felice Iazzi, E. Widmann, D. G. Ireland, C. Motzko, K.-T. Brinkmann, M. Schmidt, Johann Marton, J. Tao, W. Eyrich, M. Straube, Krzysztof Swientek, B. Krusche, N. K. Walford, S. Vejdani, G. Perez Andrade, Richard Wheadon, N. Kratochwil, H. Li, L. Jokhovets, S.G. Pivovarov, W. Ikegami Andersson, S. Grieser, A. Gerhardt, H. Qi, W. Lauth, S. Diehl, R. Beck, Krzysztof Korcyl, Angelo Rivetti, K. Makonyi, Yupeng Yan, P. P. Natali, G. Kesik, K. N. Basant, I. Lehmann, A. V. Stavinskiy, W. Esmail, M. Preston, A. Gillitzer, D. Calvo, Ayut Limphirat, A. Demekhin, J. Müllers, M. Pelizäus, Andrew Levin, Gianangelo Bracco, N. Quin, D. Lersch, V. Chernetsky, M. Domagala, N. Minaev, A. Balashoff, U. Müller, N. Hüsken, V. Abramov, Torbjörn Bäck, A. Ali, S. Pflüger, C. Yu, G. Boca, R. Klasen, N. Kristi, J. Zmeskal, T. Nasawad, A. Dolgolenko, A. Belousov, B. Wohlfahrt, H. Xu, R. Dosdall, E. Maslova, Gianni Barucca, M.P. Bussa, B. Seitz, J. S. Díaz, G. Hunter, M. Volf, V.Kh. Dodokhov, Piotr Lebiedowicz, A. Scholl, Grzegorz Korcyl, H. Loehner, Mohammed Al-Turany, Andrzej Kupsc, R. W. Novotny, L. Montalto, A. E. Blinov, J. Kannika, Andrey Uzunian, R. Lalik, P. N. Deepak, P.-E. Tegnér, E. Antokhin, A. Gerasimov, P. De Remigis, X. Zhou, Petr Gallus, P. Orsich, I. Prochazka, Valentino Rigato, S. Maldaner, M. Himmelreich, V. M. Abazov, J. Płażek, Kazem Azizi, James Ritman, S. Wolff, Andrea Bianconi, Nicola Paone, W. Nalti, S. Kegel, I. A. Kuyanov, M. Steinacher, A. Chlopik, V. Lucherini, A. Belias, K. K. Seth, Mario Bragadireanu, C. J. Schmidt, V. Freudenreich, A. Ehret, G. V. Fedotov, J. Li, A. Galoyan, G. Neue, P. Schakel, M. Wojciechowski, B. Kopf, C. Liu, P. Gianotti, X. Ma, R. Kappert, Oleg V. Missevitch, J. Pereira-de-Lira, X. Zhang, D. Melnychuk, Paweł Moskal, I. Köseoglu, Bo Cederwall, K. Götzen, M. Finger, M. Marcisovsky, A. Derevschikov, V. Goryachev, V. Jary, R. Kunne, Y. Zhou, G. Reicherz, C. Schnier, J. G. Messchendorp, M. Michałek, T. Erlen, D. Miehling, G. D. Alexeev, Hasko Stenzel, A. Fechtchenko, L. Schmitt, J. Rieger, M. Zyzak, Michael Papenbrock, F. Schupp, Sean A Dobbs, J. Pochodzalla, S. Chernichenko, S. Shimanski, A. Mustafa, K. Dutta, M. Kümmel, S. Bökelmann, S. Sun, Bruce Yabsley, I. Zimmermann, E.K. Koshurnikov, B. Zwieglinski, O. Malyshev, H. Flemming, O. Korchak, U. Kurilla, F. Nerling, M. Pugach, Claude Amsler, G. Huang, A. Akram, L. Sohl, B. J. Roy, S. Wronka, Andrey V. Izotov, Vaclav Vrba, A. Malige, M. Kuhlmann, E. Prencipe, R. Böhm, R. Schubert, Matthias Richter, M. Krebs, L. Nogach, Frank Goldenbaum, B. Ramstein, X. Y. Shen, Paul Alois Buhler, S. I. Manaenkov, A. Aycock, M. Küßner, A. Khoukaz, E. Luschevskaya, K. Khosonthongkee, C. Wenzel, M. Pfaffinger, J. Lühning, P. Poznański, Fabrizio Daví, S. Koch, O. Corell, M. Kavatsyuk, Bernd Voss, B. Hetz, Daniele Rinaldi, J. Regina, L. Capozza, J. Novy, V. Ferapontov, A. Kozela, D. Y. Kirin, U. Lynen, T. Johansson, S. Orfanitski, M. Tomasek, A. Derichs, Andrea Lavagno, Krisztian Peters, A. Ryazantsev, Daniel Duda, Valery Dormenev, M. Peskova, X. A. Xiong, O. Noll, M. Rossbach, M. Fritsch, N. I. Zhuravlev, Tomasz Fiutowski, S. Zimmermann, Y. Melnik, V. A. Matveev, A. Täschner, P. Salabura, S.A. Kononov, T. Triffterer, J. S. Lange, K. Pysz, K. Kalita, W. Erni, Ajay Kumar Rai, D. P. Watts, Lennart Isaksson, Utpal N. Roy, M. Strickert, M. Böhm, M. Albrecht, Y. Bettner, Boris Batyunya, A. Hamdi, J. Hofmann, Jize Zhao, R. Dzhygadlo, T. Held, V. V. Tokmenin, K. Manasatitpong, Andrei Fedorov, H. Orth, Hans Calén, M. Urban, G. Zhao, F. Lisowski, Witold Przygoda, D. Prasuhn, M. Zambrana, W. Schäfer, S. Bleser, A. K. Hergemöller, M. Pesek, Y. A. Tikhonov, A. Filippi, M. Peter, Volker Metag, M. Moritz, A. Kripko, J. Tarasiuk, S. Schadmand, G. Schepers, S. Poslavskiy, Andreas Martin Heinz, Anne-Laure Martin, L. Brück, Antonin Kveton, V. Mochalov, D. Steinschaden, M. Bölting, N. Er, Ch. Schmidt, Mikhail Korzhik, V. Astakhov, Konstantin Beloborodov, H. Denizli, T. Saito, R. Hagdorn, Pawel Marciniewski, D. Veretennikov, C. Morales Morales, Harphool Kumawat, Karin Schönning, Marek Idzik, M. O. Distler, A. Golubev, E. Ladygina, G. Kozlov, Tobias Stockmanns, C. Hahn, N. Cao, T. Sefzick, Giovanni Lancioni, V. Serdyuk, B. Ketzer, Jerzy Smyrski, D. Bonaventura, P. Wüstner, Yu. Yu. Lobanov, V. Pothodi Chackara, Mariana Nanova, B. Salisbury, E. A. Kravchenko, L. Tomasek, D. Bumrungkoh, Patrick Achenbach, W. Alkakhi, V. Uzhinsky, Y. Goncharenko, Harald Merkel, A. Atac, D. Rodríguez Piñeiro, A. Verkheev, P. Fedorets, S. Nakhoul, F. H. Heinsius, Q. Hu, N. B. Skachkov, S. Pongampai, R. Schmitz, E. A. Strokovsky, Zhiyong Liu, H. Peng, V. Arefiev, K. Föhl, D. Liu, P. Semenov, V. Rodin, Keval Gandhi, P. Kulessa, O. Miklukho, A. Vasiliev, P. Brand, A. A. Zhdanov, R. Kliemt, P. Grasemann, A. Yu. Barnyakov, Z. Li, A. Meschanin, Michael Düren, S. Ahmed, Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, 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), PANDA, Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), BAİBÜ, Fen Edebiyat Fakültesi, Fizik Bölümü, Denizli, Haluk, and 0-Belirlenecek
Subjects: +Antixi+Xi%22">anti-p p --> Antixi Xi, Hadron, hyperon: pair production, correction: efficiency, 01 natural sciences, 13.30.-a, symmetry: CP, High Energy Physics - Experiment, Subatomär fysik, benchmark, Subatomic Physics, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Electromagnetic Form-Factors, Nuclear Experiment, Spin-½, Physics, Antihyperon Production, Hyperon, PANDA, strong interaction, Observable, hyperon: production, 13.88.+, +Antilambda+Lambda%22">anti-p p --> Antilambda Lambda, Production (computer science), Low-Energy, Nuclear and High Energy Physics, Particle physics, Cp-Violation, +Lambda+pi%22">Xi- --> Lambda pi, Bar (music), spin: correlation, Strong interaction, Hyperons, nonperturbative, 13.60.R, hyperon: decay, 0103 physical sciences, anti-p p: scattering, ddc:530, anti-p: beam, 010306 general physics, polarization, 010308 nuclear & particles physics, background, High Energy Physics::Phenomenology, antihyperon, [No Keywords], Exchange, 13.75.-n, Decay, hyperon: ground state, Antiproton, High Energy Physics::Experiment
Abstract: The antiproton experiment PANDA at FAIR is designed to bring hadron physics to a new level in terms of scope, precision and accuracy. In this work, its unique capability for studies of hyperons is outlined. We discuss ground-state hyperons as diagnostic tools to study non-perturbative aspects of the strong interaction, and fundamental symmetries. New simulation studies have been carried out for two benchmark hyperon-antihyperon production channels: $\bar{p}p \to \bar{\Lambda}\Lambda$ and $\bar{p}p \to \bar{\Xi}^+\Xi^-$. The results, presented in detail in this paper, show that hyperon-antihyperon pairs from these reactions can be exclusively reconstructed with high efficiency and very low background contamination. In addition, the polarisation and spin correlations have been studied, exploiting the weak, self-analysing decay of hyperons and antihyperons. Two independent approaches to the finite efficiency have been applied and evaluated: one standard multidimensional efficiency correction approach, and one efficiency independent approach. The applicability of the latter was thoroughly evaluated for all channels, beam momenta and observables. The standard method yields good results in all cases, and shows that spin observables can be studied with high precision and accuracy already in the first phase of data taking with PANDA., Comment: 26 pages, 16 figures. Changes: Revised title and abstract and corrections/clarifications in the text according to suggestions by journal referees
Published: 2021
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3. Study of excited $$arvec{arXi }$$ baryons with the $$overline{ ext{ P }}$$ANDA detector

Author: Egle Tomasi-Gustafsson, R. Karabowicz, A. Kripko, M. Domagala, U. Müller, Pawel Marciniewski, D. Veretennikov, Xuan Zhang, Y. A. Tikhonov, A. Hamdi, J. Hofmann, A. Filippi, A. Golubev, Tobias Stockmanns, V. Abramov, C. Hahn, A. Belias, K. Nowakowski, V. Serdyuk, M. Pelizä, Z. Tavukoglu, B. Ketzer, Jerzy Smyrski, J. Pütz, O. Malyshev, U. Kurilla, Konstantin Beloborodov, V. Chauhan, R. W. Novotny, A. Kantsyrev, P. Balanutsa, B. J. Liu, D. G. Ireland, Petr Gallus, G. D. Alexeev, D. Bonaventura, A. V. Stavinskiy, C. Motzko, K.-T. Brinkmann, H. Denizli, V. Crede, I. Zimmermann, E.K. Koshurnikov, Jize Zhao, R. Dzhygadlo, Kazem Azizi, A. Chlopik, Fabrizio Daví, V. Ferapontov, D. Y. Kirin, P. Wüstner, M. Fritsch, N. I. Zhuravlev, D. Rodríguez Piñeiro, Dan Pantea, A. Täschner, W. Eyrich, T. Held, W. Esmail, T. Triffterer, V. V. Tokmenin, K. Manasatitpong, W. Kühn, A. Khoukaz, A. Ali, Alexander Olshevskiy, S. Koch, J. Rieger, R. Hagdorn, S. Godre, V. Lucherini, T. Erlen, Herbert Koch, Y. K. Sun, Mariana Nanova, A. Verkheev, M. Marcisovsky, P. Fedorets, Yan Liang, Claude Amsler, M. Slunecka, S. Nakhoul, J. Müllers, Krisztian Peters, J. Oppotsch, A. Malige, N. Hüsken, B. Salisbury, G. Huang, S. Sun, F. Nerling, A. A. Piskun, F. H. Heinsius, G. Mazza, S. I. Manaenkov, O. Noll, A. T. Olgun, E. Antokhin, A. Gerasimov, S. Spataro, P. Salabura, D. Bumrungkoh, Q. Hu, Kamal K. Seth, D. P. Watts, S. Shimanski, V. Uzhinsky, M. Krebs, S. Bodenschatz, Karin Schönning, C. Yu, G. Perez-Andrade, G. Boca, Krzysztof Swientek, V. E. Blinov, P. De Remigis, C. J. Schmidt, Paolo Mengucci, Christoph Herold, F. Lisowski, E. A. Strokovsky, N. B. Skachkov, Y. Goncharenko, Harald Merkel, Lennart Isaksson, S. Maldaner, S. Pongampai, F. Khalid, W. Lauth, F. Feldbauer, G. Reicherz, Volker Metag, C. Mannweiler, M. Moritz, L. Montalto, Piotr Lebiedowicz, D. Prasuhn, A. Scholl, Michaela Thiel, R. Schmitz, S. Pflüger, J. Kannika, M. Albrecht, M. Volf, V.Kh. Dodokhov, P. Poznański, Marek Idzik, M. O. Distler, I. Shein, T. Wasem, J. Schwiening, T. Sefzick, Giovanni Lancioni, J. Tarasiuk, E. Ladygina, Hans-Georg Zaunick, A. E. Blinov, N. Wongprachanukul, W. Schäfer, S. Schadmand, G. Schepers, Yu. Yu. Lobanov, I. Augustin, Mathias Fink, D. Lehmann, P. Terlecki, P. Eugenio, Concettina Sfienti, S. Poslavskiy, M. Virius, S. Schlimme, C. Schwarz, Andreas Martin Heinz, Andrey Uzunian, B. Zwieglinski, M. Lattery, A. E. Yakutin, P.-E. Tegnér, H. Peng, J. Pereira-de-Lira, Ting Xiao, A.A. Efremov, James Ritman, L. Brück, Antonin Kveton, V. Mochalov, V. M. Abazov, S. Wolff, E. A. Kravchenko, E. Prencipe, F. E. Maas, R. Beck, Krzysztof Korcyl, Lorenzo Scalise, Gianangelo Bracco, L. Tomasek, Patrick Achenbach, A. Derevschikov, E. Vishnevsky, D. Melnychuk, M. Firlej, P. Srisawad, A. Dbeyssi, J. Petersen, I. Köseoglu, D. Miehling, M. Bölting, J. Regina, P. Wintz, J. Reher, W. Alkakhi, H. H. Leithoff, S. Bleser, S. Kegel, N. Er, S. Pankonin, Antoni Szczurek, D. Kazlou, M. Yu. Barabanov, Dirk Grunwald, L. Capozza, L. Linzen, D. Liu, V. Freudenreich, A. Ehret, C. Liu, Yupeng Yan, P. Gianotti, R. Dosdall, Ch. Schmidt, M. Steinen, Y. Zhou, A. Demekhin, A. Galoyan, M. Preston, Zhengtai Liu, T. Holtmann, Paweł Moskal, Mikhail Korzhik, A. Boukharov, D. Klostermann, S. Orfanitski, E. Pyata, P. P. Natali, G. Golovanov, M. Pesek, Ch. Hammann, C. Schnier, J. G. Messchendorp, P. Semenov, V. Rodin, Valentino Rigato, B. Kopf, Keval Gandhi, Daniel Duda, Andrea Bianconi, D. I. Glazier, A. Gillitzer, A. Akram, H. Flemming, M. Kümmel, M. Steinke, I. A. Kuyanov, N. Rathod, D. Calvo, D. Wölbing, R. Böhm, Ali Yilmaz, F. Schupp, Sean A Dobbs, J. Pochodzalla, U. Lynen, S. Chernichenko, B. Krusche, Felice Iazzi, Richard Wheadon, X. Y. Shen, L. Jokhovets, S.G. Pivovarov, R. Kappert, A. Lehmann, Ayut Limphirat, P. Kulessa, I. Lehmann, Andrea Lavagno, N. Kristi, T. Nasawad, A. Dolgolenko, M. Peskova, J. Płażek, Tomasz Fiutowski, L. Nogach, G. V. Fedotov, E. Luschevskaya, E. Maslova, R. Lalik, K. Khosonthongkee, C. Wenzel, M. Pfaffinger, Grzegorz Korcyl, O. Miklukho, A. N. Skachkova, Edward Lisowski, V. Jary, M. Kavatsyuk, M. Himmelreich, H. Deppe, A. G. Denig, A. Vasiliev, A. Derichs, J. Frech, A. Hayrapetyan, W. Zhu, Chinorat Kobdaj, P. Brand, E. Rosenthal, S. Belostotski, Ulrich Wiedner, A.S. Vodopianov, J. Kellers, U. Keskin, U. Thoma, R. Kliemt, A. Yu. Barnyakov, Bo Cederwall, K. Götzen, A. Meschanin, Michael Düren, Johann Marton, V. Chernetsky, Gianni Barucca, H. Loehner, Vaclav Vrba, M. Sachs, I. K. Keshk, Xi-Guang Cao, M. Traxler, S. Diehl, Andrew Levin, M.P. Bussa, S. Yerlikaya, Nicola Paone, A. Samartsev, P. Jiang, A. Fechtchenko, L. Schmitt, Michael Papenbrock, Bernd Voss, B. Hetz, Daniele Rinaldi, V. Moiseev, Magnus Wolke, V. Varentsov, M. Schmidt, N. Minaev, A. Balashoff, Mohammed Al-Turany, Andrzej Kupsc, P. Orsich, M. Steinacher, M. Finger, V. Panjushkin, H. Xu, M. Michałek, S. Bökelmann, S. Wronka, Andrey V. Izotov, M. Bukharova, G. Neue, R. Schubert, M. Tomasek, D. A. Morozov, S. Zimmermann, J. Grochowski, P. Wieczorek, S. Ryzhikov, M. Hoek, A. Gerhardt, H. Qi, Jens Hartmann, B. Seitz, S. Bukreeva, X. Zhou, G. Kesik, I. Prochazka, Mario Bragadireanu, K. Pysz, S. Coen, O. Korchak, K. Kalita, M. Küßner, O. Corell, T. Johansson, A. Ryazantsev, Y. Melnik, V. A. Matveev, S.A. Kononov, H. Orth, Hans Calén, M. Urban, G. Zhao, Witold Przygoda, T. Simantathammakul, J. Moron, J. Li, Oleg V. Missevitch, Frank Goldenbaum, Ajay Kumar Rai, M. Strickert, M. Böhm, Grzegorz Filo, M. Kunze, W. Ikegami Andersson, R. Klasen, S. Vestrick, Paul Alois Buhler, J. Lühning, J. Novy, Valery Dormenev, Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), and Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay
Subjects: Nuclear and High Energy Physics, hyperon: particle source, Hadron, Type (model theory), [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 01 natural sciences, decay modes, Combinatorics, Tree (descriptive set theory), excited state: spectrum, 0103 physical sciences, ddc:530, structure, 010306 general physics, Nuclear Experiment, Physics, 010308 nuclear & particles physics, baryon: excited state, Spectrum (functional analysis), Hyperon, anti-p, Baryon, statistics, efficiency, Excited state, Production (computer science), acceptance
Abstract: The European physical journal / A 57(4), 149 (2021). doi:10.1140/epja/s10050-021-00444-5, Published by Springer, Heidelberg
Published: 2021
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4. PANDA Phase One: PANDA collaboration

Author: R. Klasen, S. Vestrick, Grzegorz Filo, S. Diehl, M. Kunze, W. Ikegami Andersson, A. V. Stavinskiy, Yupeng Yan, Felice Iazzi, D. Rodríguez Piñeiro, J. Müllers, Andrew Levin, Paul Alois Buhler, J. Lühning, J. Novy, Valery Dormenev, James Ritman, Piotr Lebiedowicz, L. Montalto, M. Küßner, A. Scholl, Frank Goldenbaum, Ali Yilmaz, Yan Liang, W. Esmail, M.P. Bussa, A. Ali, L. Jokhovets, S.G. Pivovarov, D. Bonaventura, A. Verkheev, S. Rimjaem, M. Preston, A. T. Olgun, Konstantin Beloborodov, P. Fedorets, A. Hamdi, M. Volf, S. Yerlikaya, S. Nakhoul, J. Kannika, O. Corell, A. Vasiliev, G. Mazza, E. Antokhin, A. Gerasimov, Egle Tomasi-Gustafsson, J. Hofmann, R. Karabowicz, V.Kh. Dodokhov, A. E. Blinov, P.-E. Tegnér, Andrey Uzunian, S. Wolff, M. Steinen, L. Linzen, Y. Zhou, F. H. Heinsius, Zhengtai Liu, P. De Remigis, C. J. Schmidt, I. Lehmann, H. Denizli, H. Deppe, Ajay Kumar Rai, T. Johansson, T. Holtmann, A. G. Denig, V. Panjushkin, J. Frech, A. Hayrapetyan, W. Zhu, L. Nogach, E. Vishnevsky, D. Melnychuk, Q. Hu, I. Köseoglu, Andrea Bianconi, J. Pereira-de-Lira, A. Derevschikov, A. Belias, O. Malyshev, D. Miehling, Nicola Paone, K. Pysz, A. Ryazantsev, D. I. Glazier, G. Reicherz, R. Hagdorn, M. Strickert, M. Böhm, Chinorat Kobdaj, P. Brand, Vladimir Blinov, P. Wüstner, X. Y. Shen, Paolo Mengucci, Christoph Herold, M. Pelizäus, G. V. Fedotov, T. Nasawad, A. Dolgolenko, N. B. Skachkov, S. Pongampai, S. Coen, Y. Melnik, V. A. Matveev, U. Kurilla, V. Jary, B. Zwieglinski, F. Khalid, A. Gillitzer, D. Calvo, Andreas Martin Heinz, M. Kavatsyuk, Mariana Nanova, S. Belostotski, K. Nowakowski, Claude Amsler, T. Erlen, K. Kalita, M. Domagala, A. Derichs, Ulrich Wiedner, E. Prencipe, L. Brück, R. Schmitz, Antonin Kveton, V. Mochalov, A.S. Vodopianov, J. Kellers, J. Rieger, G. Huang, N. Wongprachanukul, Bo Cederwall, K. Götzen, A. N. Skachkova, Edward Lisowski, J. Pütz, U. Müller, C. Motzko, K.-T. Brinkmann, S.A. Kononov, Dirk Grunwald, G. Neue, U. Thoma, R. Lalik, A. Kantsyrev, S. Sun, M. Virius, B. Salisbury, J. Oppotsch, Jize Zhao, R. Dzhygadlo, T. Held, F. Nerling, G. D. Alexeev, M. Bölting, A. Boukharov, G. Golovanov, I. Zimmermann, N. Er, A. Malige, S. Godre, Ting Xiao, M. Wojciechowski, Ch. Schmidt, T. Simantathammakul, B. Seitz, P. Balanutsa, B. J. Liu, V. Crede, M. Krebs, E. Rosenthal, Y. K. Sun, D. G. Ireland, W. Kühn, V. Abramov, Z. Tavukoglu, Mikhail Korzhik, A. Kripko, S. Spataro, D. Bumrungkoh, V. M. Abazov, R. Schubert, H. Flemming, Vaclav Vrba, S. I. Manaenkov, S. Kegel, A. Lehmann, U. Keskin, Hans-Georg Zaunick, R. Kliemt, V. Uzhinsky, Karin Schönning, X. Zhou, R. Böhm, S. Maldaner, J. Moron, D. P. Watts, E.K. Koshurnikov, M. Slunecka, P. Poznański, M. Firlej, P. Srisawad, A. Yu. Barnyakov, D. Kazlou, M. Yu. Barabanov, J. Płażek, V. Chauhan, R. W. Novotny, S. Schlimme, C. Schwarz, Y. Goncharenko, Lennart Isaksson, P. Eugenio, Kamal K. Seth, Concettina Sfienti, Harald Merkel, H. Xu, A. Meschanin, Marek Idzik, Mario Bragadireanu, Kazem Azizi, M. Lattery, C. Yu, G. Perez-Andrade, G. Boca, C. Liu, A. Chlopik, Johann Marton, Jens Hartmann, A. Samartsev, M. O. Distler, Dan Pantea, W. Eyrich, P. Gianotti, J. Li, E. Ladygina, Michael Düren, M. Albrecht, M. Tomasek, J. Regina, Michaela Thiel, I. Shein, L. Capozza, V. Chernetsky, Y. A. Tikhonov, Oleg V. Missevitch, V. Lucherini, Lorenzo Scalise, Fabrizio Daví, J. Petersen, F. E. Maas, A. Filippi, Gianni Barucca, T. Wasem, J. Reher, J. Schwiening, P. Wintz, O. Korchak, M. Marcisovsky, Volker Metag, S. Zimmermann, N. Hüsken, S. Pankonin, P. Jiang, Antoni Szczurek, C. Schnier, H. Orth, S. Bukreeva, H. Loehner, S. Orfanitski, D. Lehmann, C. Mannweiler, V. Ferapontov, D. Y. Kirin, M. Moritz, C. Hahn, D. A. Morozov, J. Grochowski, A. A. Piskun, Hans Calén, Christoph Hanhart, S. Bodenschatz, J. Tarasiuk, Christian S. Fischer, M. Urban, G. Zhao, T. Sefzick, A. Demekhin, P. Wieczorek, Giovanni Lancioni, Daniel Duda, M. Hoek, A. Akram, S. Ryzhikov, Yu. Yu. Lobanov, E. A. Strokovsky, A. Galoyan, F. Feldbauer, S. Shimanski, A.A. Efremov, Paweł Moskal, H. Peng, G. Kesik, S. Schadmand, B. Kopf, G. Schepers, B. Krusche, J. G. Messchendorp, V. V. Tokmenin, K. Manasatitpong, A. Dbeyssi, M. Fritsch, Witold Przygoda, S. Poslavskiy, Valentino Rigato, A. Khoukaz, M. Kümmel, D. Klostermann, S. Koch, E. A. Kravchenko, M. Sachs, Ayut Limphirat, L. Tomasek, I. K. Keshk, D. Liu, P. P. Natali, A. Gerhardt, H. Qi, I. A. Kuyanov, Patrick Achenbach, Alexander Olshevskiy, W. Alkakhi, N. Kristi, H. H. Leithoff, N. I. Zhuravlev, P. Semenov, V. Rodin, Keval Gandhi, E. Maslova, Xi-Guang Cao, M. Traxler, Herbert Koch, A. Täschner, Grzegorz Korcyl, Krisztian Peters, P. Kulessa, Sinead M. Ryan, F. Schupp, Sean A Dobbs, J. Pochodzalla, M. Himmelreich, S. Chernichenko, O. Noll, T. Triffterer, F. Lisowski, P. Salabura, Krzysztof Swientek, Pawel Marciniewski, D. Veretennikov, W. Lauth, Xuan Zhang, I. Prochazka, D. Prasuhn, Johann Haidenbauer, S. Pflüger, W. Schäfer, A. Golubev, Tobias Stockmanns, S. Bleser, V. Serdyuk, M. Michałek, B. Ketzer, Jerzy Smyrski, S. Bökelmann, V. Freudenreich, A. Ehret, S. Wronka, R. Kappert, Andrey V. Izotov, M. Bukharova, E. Luschevskaya, K. Khosonthongkee, C. Wenzel, M. Pfaffinger, E. Pyata, Ch. Hammann, M. Steinke, A. Fechtchenko, L. Schmitt, Michael Papenbrock, N. Rathod, D. Wölbing, Richard Wheadon, U. Lynen, Andrea Lavagno, M.F.M. Lutz, Bernd Voss, B. Hetz, Daniele Rinaldi, Tomasz Fiutowski, V. Moiseev, Magnus Wolke, V. Varentsov, M. Schmidt, N. Minaev, A. Balashoff, Mohammed Al-Turany, Andrzej Kupsc, P. Orsich, M. Steinacher, M. Finger, I. Augustin, Mathias Fink, P. Terlecki, A. E. Yakutin, R. Beck, Krzysztof Korcyl, Gianangelo Bracco, R. Dosdall, and O. Miklukho
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Luminosity (scattering theory), 010308 nuclear & particles physics, Physics::Instrumentation and Detectors, Physics beyond the Standard Model, Hadron, Detector, Strong interaction, 01 natural sciences, Antiproton, 0103 physical sciences, Facility for Antiproton and Ion Research, 010306 general physics, Nuclear Experiment, Storage ring
Abstract: The Facility for Antiproton and Ion Research (FAIR) in Darmstadt, Germany, provides unique possibilities for a new generation of hadron-, nuclear- and atomic physics experiments. The future antiProton ANnihilations at DArmstadt (PANDA or $$\overline{\mathrm{P}}$$ P ¯ ANDA) experiment at FAIR will offer a broad physics programme, covering different aspects of the strong interaction. Understanding the latter in the non-perturbative regime remains one of the greatest challenges in contemporary physics. The antiproton–nucleon interaction studied with PANDA provides crucial tests in this area. Furthermore, the high-intensity, low-energy domain of PANDA allows for searches for physics beyond the Standard Model, e.g. through high precision symmetry tests. This paper takes into account a staged approach for the detector setup and for the delivered luminosity from the accelerator. The available detector setup at the time of the delivery of the first antiproton beams in the HESR storage ring is referred to as the Phase One setup. The physics programme that is achievable during Phase One is outlined in this paper.
Published: 2021

5. 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
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6. 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
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7. Proton-number fluctuations in sNN=2.4 GeV Au + Au collisions studied with the High-Acceptance DiElectron Spectrometer (HADES)

Author: H. Tsertos, N. Rathod, E. Schwab, J. Stroth, A. Sadovsky, Roman Gernhäuser, A. Kugler, A.P. Ierusalimov, L. Silva, Laura Fabbietti, S. Spies, G. Korcyl, Oliver Werner Arnold, W. Koenig, K. Nowakowski, Yu.V. Zanevsky, F. Scozzi, T. Galatyuk, J. Adamczewski-Musch, R. Lalik, A. Rustamov, V. P. Ladygin, F. Kornas, A. Lebedev, O. V. Fateev, A. Belounnas, M. Traxler, L. Chlad, P. Rodriguez-Ramos, B. W. Kolb, C. Sturm, P. Tlusty, Kirill Lapidus, V. Pechenov, Sergey V. Morozov, L. Lopes, F.F. Guber, L. Maier, A. K. Kurilkin, M. Szala, M. Böhmer, Yiannis Parpottas, E. Usenko, I. Koenig, A. Mangiarotti, Ilya Selyuzhenkov, B. Kämpfer, P. Filip, K. Pysz, T. Scheib, Alexey Kurepin, B. Kardan, O. Petukhov, J. A. Garzón, T. Hennino, A. Blanco, P. Fonte, H. Schuldes, M. Kohls, J. Siebenson, A. Rost, A. Ivashkin, B. Ramstein, S. Harabasz, C. Wendisch, M. Gumberidze, T. Matulewicz, R. Kotte, S. Spataro, Witold Przygoda, I. Fröhlich, P. Bordalo, O. Pechenova, Krzysztof Piasecki, T. Kunz, Izabela Ciepał, Jerzy Smyrski, T. Heinz, C. Höhne, J. C. Berger-Chen, J. Pietraszko, M. G. Wiebusch, Christoph Blume, M.B. Golubeva, Andrey Reshetin, V. Metag, H. Ströbele, Yu. G. Sobolev, R. H. Munzer, D. M. Mihaylov, C. Müntz, R. Holzmann, J. Markert, M. Lorenz, V. Wagner, P. Rosier, S. Maurus, Tatiana Karavicheva, S. Ramos, C. Behnke, P. K. Kurilkin, L. Naumann, Udai Pratap Singh, S. Hlavac, T. Mahmoud, A. Malige, D. Wójcik, P. Sellheim, S. P. Chernenko, P. Zumbruch, P. Salabura, J. Dreyer, Alexander Belyaev, J. Friese, J. Michel, J. Wirth, F. Seck, Eliane Epple, G. Kornakov, C. Franco, C. Deveaux, R. Greifenhagen, and O. Svoboda
Subjects: Physics, Proton, Spectrometer, 010308 nuclear & particles physics, Position and momentum space, 01 natural sciences, 7. Clean energy, Nuclear physics, Isospin, Phase space, 0103 physical sciences, Rapidity, Atomic number, Nuclear Experiment, 010306 general physics, Relativistic Heavy Ion Collider
Abstract: We present an analysis of proton-number fluctuations in sNN=2.4 GeV Au197+Au197 collisions measured with the High-Acceptance DiElectron Spectrometer (HADES) at GSI Helmholtzzentrum fur Schwerionenforschung, Darmstadt. With the help of extensive detector simulations done with Isospin Quantum Molecular Dynamics (IQMD) transport model events including nuclear clusters, various nuisance effects influencing the observed proton cumulants have been investigated. Acceptance and efficiency corrections have been applied as a function of fine-grained rapidity and transverse momentum bins, as well as considering local track density dependencies. Next, the effects of volume changes within particular centrality selections have been considered and beyond-leading-order corrections have been applied to the data. The efficiency and volume-corrected proton number moments and cumulants Kn of orders n=1, 2, 3, and 4 have been obtained as a function of centrality and phase-space bin, as well as the corresponding correlators Cn. We find that the observed correlators show a power-law scaling with the mean number of protons, i.e., Cn∞«N»n, indicative of mostly long-range multiparticle correlations in momentum space. We also present a comparison of our results with Au + Au collision data obtained at the Relativistic Heavy Ion Collider (RHIC) at similar centralities but higher √sNN.
Published: 2020
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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
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9. 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
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10. 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
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11. Identical pion intensity interferometry at $\sqrt{s_{\mathrm{NN}}}=2.4~\hbox {GeV}$: HADES collaboration

Author: Christoph Blume, Marek Palka, O. V. Fateev, I. Koenig, S. Harabasz, F. Seck, Ilya Selyuzhenkov, P. Tlusty, P. Strzempek, C. Franco, A. Dybczak, J. C. Berger-Chen, J. Biernat, Tatiana Karavicheva, C. Behnke, C. Wendisch, J. Dreyer, B. W. Kolb, Alexander Belyaev, B. Ramstein, L. Silva, A. Blanco, P. Fonte, S. Spataro, T. Matulewicz, S. Hlavac, Laura Fabbietti, A. Ivashkin, R. Kotte, K. Nowakowski, C. Deveaux, R. Greifenhagen, I. Fröhlich, C. Höhne, M. G. Wiebusch, T. Heinz, A. Sadovsky, O. Svoboda, P. Zumbruch, P. Salabura, H. Tsertos, E. Usenko, L. Chlad, M. Lorenz, Andrey Reshetin, L. Lopes, J. Siebenson, Joachim Stroth, Roman Gernhäuser, E. Epple, S. Maurus, A. Kugler, G. Kornakov, H. Schuldes, R. H. Munzer, D. M. Mihaylov, J. Friese, A. Rost, T. Galatyuk, F. Kornas, F. Scozzi, J. Adamczewski-Musch, E. Schwab, L. Naumann, R. Holzmann, P. Rosier, L. Maier, J. Markert, Krzysztof Piasecki, T. Kunz, S. Ramos, B. Kämpfer, S. Spies, J. A. Garzón, Witold Przygoda, G. Korcyl, R. Lalik, A.P. Ierusalimov, M. Gumberidze, T. Scheib, C. Sturm, T. Hennino, B. Kardan, M. Böhmer, A. Mangiarotti, Sergey V. Morozov, O. Petukhov, Fedor Guber, Oliver Werner Arnold, V. P. Ladygin, Yu.V. Zanevsky, S. P. Chernenko, Volker Metag, J. Michel, J. Wirth, M. B. Golubeva, P. Rodriguez-Ramos, Yu. G. Sobolev, M. Szala, C. Müntz, A. K. Kurilkin, O. Pechenova, J. Pietraszko, P. Filip, K. Lapidus, V. Pechenov, P. Bordalo, D. Wójcik, Y. Parpottas, A. Lebedev, A. Belounnas, A. B. Kurepin, M. Traxler, W. Koenig, H. Ströbele, V. Wagner, T. Mahmoud, P. Sellheim, P. K. Kurilkin, 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: Nuclear and High Energy Physics, dimension: 3, media_common.quotation_subject, interferometer, transverse momentum: low, Extrapolation, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 01 natural sciences, beam: energy, energy dependence, Nuclear physics, Pion, 0103 physical sciences, Perpendicular, correlation function, Eccentricity (behavior), 010306 general physics, Nuclear Experiment, impact parameter, media_common, pi pi, Physics, energy: high, 010308 nuclear & particles physics, Plane (geometry), Transverse plane, Correlation function (statistical mechanics), 2.4 GeV-cms/nucleon, HADES, space-time, Impact parameter
Abstract: High-statistics $$\pi ^-\pi ^-$$π-π- and $$\pi ^+\pi ^+$$π+π+ femtoscopy data are presented for Au + Au collisions at $$\sqrt{s_\mathrm{NN}} = 2.4~\hbox {GeV}$$sNN=2.4GeV, measured with HADES at SIS18/GSI. The experimental correlation functions allow the determination of the space-time extent of the corresponding emission sources via a comparison to models. The emission source, parametrized as three-dimensional Gaussian distribution, is studied in dependence on pair transverse momentum, azimuthal emission angle with respect to the reaction plane, collision centrality and beam energy. For all centralities and transverse momenta, a geometrical distribution of ellipsoidal shape is found in the plane perpendicular to the beam direction with the larger extension perpendicular to the reaction plane. For large transverse momenta, the corresponding eccentricity approaches the initial eccentricity. The eccentricity is smallest for most central collisions, where the shape is almost circular. The magnitude of the tilt angle of the emission ellipsoid in the reaction plane decreases with increasing centrality and increasing transverse momentum. All source radii increase with centrality, largely exhibiting a linear rise with the cube root of the number of participants. A substantial charge-sign difference of the source radii is found, appearing most pronounced at low transverse momentum. The extracted source parameters are consistent with the extrapolation of their energy dependence down from higher energies.
Published: 2020
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12. Correlated pion-proton pair emission off hot and dense QCD matter

Author: S. Spataro, I. Fröhlich, A. K. Kurilkin, R. Holzmann, J. Markert, S. Ramos, C. Franco, V. P. Ladygin, L. Lopes, H. Ströbele, V. Wagner, P. Filip, C. Wendisch, Joachim Stroth, Tatiana Karavicheva, C. Behnke, E. Usenko, O. Pechenova, O. V. Fateev, M. Böhmer, A. Mangiarotti, E. Schwab, P. Bordalo, L. Fabbietti, S. Harabasz, J. Pietraszko, A.P. Ierusalimov, Witold Przygoda, C. Deveaux, F. Kornas, C. Sturm, Y. Parpottas, H. Schuldes, R. Greifenhagen, L. Silva, O. Svoboda, K. Pysz, T. Scheib, T. Galatyuk, A. Lebedev, C. Höhne, M. G. Wiebusch, F. Scozzi, K. Nowakowski, A. Belounnas, A. B. Kurepin, M. Traxler, T. Heinz, Yu. G. Sobolev, J. Adamczewski-Musch, J. Dreyer, Alexander Belyaev, L. Naumann, H. Tsertos, B. W. Kolb, C. Müntz, J. Friese, Izabela Ciepał, P. Zumbruch, P. Salabura, M. Lorenz, W. Koenig, B. Kämpfer, Sergey V. Morozov, P. K. Kurilkin, V. Pechenov, Yu.V. Zanevsky, G. Kornakov, M. B. Golubeva, P. Rodriguez-Ramos, A. Malige, G. Korcyl, R. Lalik, E. Epple, P. Rosier, L. Maier, S. Hlavac, J. A. Garzón, Udai Pratap Singh, J. C. Berger-Chen, F. Seck, M. Kohls, J. Siebenson, S. Maurus, M. Gumberidze, Roman Gernhäuser, A. Kugler, I. Koenig, Ilya Selyuzhenkov, S. Spies, L. Chlad, N. Rathod, B. Kardan, O. Petukhov, Fedor Guber, Oliver Werner Arnold, B. Ramstein, T. Matulewicz, A. Sadovsky, A. Blanco, P. Fonte, A. Ivashkin, R. Kotte, Christoph Blume, M. Szala, T. Mahmoud, P. Sellheim, A. Rost, Jerzy Smyrski, K. Lapidus, T. Hennino, D. Wójcik, S. P. Chernenko, Volker Metag, J. Michel, J. Wirth, Krzysztof Piasecki, T. Kunz, P. Tlusty, Andrey Reshetin, R. H. Munzer, D. M. Mihaylov, Laboratoire de Physique des 2 Infinis Irène Joliot-Curie (IJCLab), and Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)
Subjects: energy [excited state], Proton, Freezeout, transverse momentum dependence, 01 natural sciences, energy [hadron], Invariant mass, heavy-ion reactions, Nuclear Experiment (nucl-ex), Nuclear Experiment, mass [Delta(1232)], Physics, Baryonic resonances, Heavy-ion reactions, education.field_of_study, fireball, Breit-Wigner, hadron: energy, pi p: correlation, kinetic [energy], ddc, Isospin, Nucleon, Nuclear and High Energy Physics, 2.42 GeV-cms/nucleon, QC1-999, Population, correlation [pi p], FOS: Physical sciences, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], transverse momentum, Kinetic energy, Nuclear physics, isospin, Pion, 0103 physical sciences, Delta(1232): mass, matter [quantum chromodynamics], ddc:530, 010306 general physics, education, quantum chromodynamics: matter, energy: kinetic, 010308 nuclear & particles physics, background, excited state: energy, rapidity, HADES, freezeout, Energy (signal processing)
Abstract: In this letter we report the first multi-differential measurement of correlated pion-proton pairs from 2 billion Au+Au collisions at \sqrt{s_{NN}} = 2.42 GeV collected with HADES. In this energy regime the population of \Delta(1232) resonances plays an important role in the way energy is distributed between intrinsic excitation energy and kinetic energy of the hadrons in the fireball. The triple differential d3N/dM{\pi}pdpTdy distributions of correlated {\pi}p pairs have been determined by subtracting the {\pi}p combinatorial background using an iterative method. The invariant-mass distributions in the \Delta(1232) mass region show strong deviations from a Breit-Wigner function with vacuum width and mass. The yield of correlated pion-proton pairs exhibits a complex isospin, rapidity and transverse-momentum dependence. In the invariant mass range 1.1 < Minv (GeV/c2) < 1.4, the yield is found to be similar for {\pi}+p and {\pi}-p pairs, and to follow a power law ^{\alpha}, where is the mean number of participating nucleons. The exponent {\alpha} depends strongly on the pair transverse momentum (pT) while its pT-integrated and charge-averaged value is {\alpha} = 1.5 \pm 0.08stat \pm 0.2sys., Comment: 9 pages, 9 figures
Published: 2020
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13. 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
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14. Production and electromagnetic decay of hyperons: a feasibility study with HADES as a Phase-0 experiment at FAIR

Author: Burkhard Kampfer, G. Kornakov, H.P. Zbroszczyk, K. Nowakowski, O. Svoboda, J. Saraiva, R. Greifenhagen, H. Huck, L. Chlad, J. Kuboś, C. Wendisch, M. Strikhanov, J. Szewczyk, M. Wasiluk, A.A. Weber, P. Chudoba, T. Matulewicz, T. Galatyuk, M. Szala, K. Pysz, S. Linev, I. Koenig, L. Naumann, Ilya Selyuzhenkov, F. Kornas, M. Kohls, Witold Przygoda, Manfred Sobiella, Sergey V. Morozov, V. Kedych, B. Kardan, E. Schwab, T. Heinz, O. Petukhov, B. Ramstein, Krzysztof Piasecki, J. Adamczewski-Musch, A. Prozorov, F. Scozzi, M. Grunwald, J. Ritman, C. Müntz, M. Lorenz, P. Kulessa, D. Grzonka, D. Pfeifer, A. Zhilin, N. Schild, Fedor Guber, A.P. Ierusalimov, J. Friese, V. Khomyakov, V. Serdyuk, J. Regina, G. I. Lykasov, Jerzy Smyrski, N. Rathod, P. Wintz, A. Shabanov, Arkadiy Taranenko, A. Kugler, M. Gumberidze, J. Rieger, I. Fröhlich, G. Perez Andrade, A. Rost, H. Ströbele, J. Michel, B. Heybeck, S. Spies, A. Malige, A. Rustamov, B. Włoch, I. Georgadze, C. Charlotte, V. Wagner, A. Blanco, P. Fonte, Andrey Reshetin, O. Pechenova, Udai Pratap Singh, A. Ivashkin, R. Kotte, J. Pietraszko, Christoph Blume, K. Sumara, S. Reznikov, A. Kozela, Karin Schönning, S. Orfanitsky, V. Pechenov, D. Dittert, A.I. Zinchenko, W. Koenig, P. Tlusty, D.S. Borisenko, A. Derichs, C. Pauly, W.A. Esmail, S. Lebedev, V. Kozlov, C. Le Galliard, I. Kres, J. Förtsch, R. Lalik, L. Lopes, M. Imre, Joachim Stroth, M. B. Golubeva, P. Rodriguez-Ramos, J.-H. Otto, Izabela Ciepał, M. Holona, A. Lebedev, M. Traxler, Vikram Patel, J. Dreyer, Alexander Belyaev, K. H. Kampert, F. Seck, Oleg Golosov, P. Zumbruch, P. Salabura, C. Höhne, E. Zherebzova, R. Holzmann, J. Markert, V. P. Ladygin, O. V. Fateev, S. Harabasz, Laboratoire de Physique des 2 Infinis Irène Joliot-Curie (IJCLab), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), HADES, and PANDA
Subjects: Lambda(1520): electromagnetic decay, p p: scattering, Nuclear and High Energy Physics, Particle physics, hyperon: electromagnetic decay, hydrogen: liquid, Physics::Instrumentation and Detectors, polymer, Hadron, FOS: Physical sciences, Elementary particle, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Lambda, 01 natural sciences, Subatomär fysik, Particle decay, Subatomic Physics, 0103 physical sciences, Lambda(1405): electromagnetic decay, ddc:530, Darmstadt GSI FAIR, Nuclear Experiment (nucl-ex), 010306 general physics, Nuclear Experiment, Xi-: production, Regular Article - Experimental Physics, Nuclear Physics, Heavy Ions, Hadrons, Particle and Nuclear Physics, Nuclear Fusion, p p: interaction, hydrogen: target, Physics, forward spectrometer, Sigma(1385): electromagnetic decay, energy: kinetic, 010308 nuclear & particles physics, Lambda(1405), PANDA, Hyperon, Order (ring theory), 4.5 GeV/nucleon, ddc, Baryon, HADES, Sigma(1385), upgrade, Production (computer science), High Energy Physics::Experiment, performance, acceptance
Abstract: A feasibility study has been performed in order to investigate the performance of the HADES detector to measure the electromagnetic decays of the hyperon resonances $\Sigma(1385)^0$, $\Lambda(1405)$ and $\Lambda{\Lambda}(1520)$ as well as the production of double strange baryon systems $\Xi^-$ and $\Lambda\Lambda$ in p+p reactions at a beam kinetic energy of 4.5 GeV. The existing HADES detector will be upgraded by a new Forward Detector, which extends the detector acceptance into a range of polar angles that plays a crucial role for these investigations. The analysis of each channel is preceded by a consideration of the production cross-sections. Afterwards the expected signal count rates using a target consisting of either liquid hydrogen or polyethylene are summarized., Comment: Draft prepared by Rafa{\l} Lalik, James Ritman, Piotr Salabura, 19 pages, 21 figures, 4 tables
Published: 2020
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15. Strong Absorption of Hadrons with Hidden and Open Strangeness in Nuclear Matter

Author: Grzegorz Korcyl, S. P. Chernenko, V. Metag, L. Chlad, T. Hennino, O. V. Fateev, J. A. Garzón, J. Michel, T. Mahmoud, D. Dittert, L. Silva, A. Blanco, P. Fonte, P. Chudoba, M. Lorenz, Yu.V. Zanevsky, V. P. Ladygin, A. Ivashkin, J. Dreyer, Alexander Belyaev, R. Kotte, A. Prozorov, K. Nowakowski, S. Spataro, S. Linev, P. Sellheim, V. Pechenov, J. Wirth, T. Kunz, T. Heinz, T. Galatyuk, H. Tsertos, P. Zumbruch, P. Rodriguez-Ramos, J. Kuboś, C. Behnke, P. Salabura, A. Rost, S. Harabasz, H. Schuldes, I. Fröhlich, M.B. Golubeva, A. K. Kurilkin, M. Szala, Sergey V. Morozov, P. Tlusty, Kirill Lapidus, O. Vazquez Doce, T. Scheib, V. Mikhaylov, Christoph Blume, H. Ströbele, Izabela Ciepał, L. Maier, O. Pechenova, A. Malige, B. Kämpfer, V. Wagner, W. Koenig, F. Seck, L. Lopes, Andrey Reshetin, Yiannis Parpottas, J. Pietraszko, C. Ungethüm, S. Maurus, Oliver Werner Arnold, Eliane Epple, M. Gumberidze, C. Höhne, M. G. Wiebusch, C. Wendisch, R. H. Munzer, D. M. Mihaylov, Roman Gernhäuser, Alexey Kurepin, A. Kugler, E. T. Atomssa, Jerzy Smyrski, B. Ramstein, S. Spies, J. Siebenson, E. Schwab, B. Kardan, Laura Fabbietti, C. Müntz, O. Petukhov, A. Sadovsky, P. Strzempek, J. Biernat, R. Holzmann, N. Rathod, J. Stroth, J. Markert, A.P. Ierusalimov, P. K. Kurilkin, R. Lalik, A. Lebedev, F. Kornas, A. Belounnas, M. Traxler, F.F. Guber, M. Böhmer, Catalina Curceanu, B. W. Kolb, F. Scozzi, J. Adamczewski-Musch, Alessandro Scordo, I. Koenig, J. C. Berger-Chen, G. Kornakov, C. Franco, C. Deveaux, R. Greifenhagen, O. Svoboda, K. Schmidt-Sommerfeld, J. Friese, Witold Przygoda, K. Piscicchia, L. Naumann, D. Wójcik, C. Sturm, Institut de Physique Nucléaire d'Orsay (IPNO), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), HADES, and 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)
Subjects: Meson, Hadron, FOS: Physical sciences, General Physics and Astronomy, Strangeness, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], meson, 01 natural sciences, Nuclear physics, Momentum, strangeness, K-: absorption, 0103 physical sciences, strong coupling, Nuclear Experiment (nucl-ex), 010306 general physics, Absorption (electromagnetic radiation), Nuclear Experiment, Physics, nucleus, hadron: absorption, Coupling (probability), Nuclear matter, Neutron star, Automatic Keywords, HADES, nuclear matter, beam: momentum, Elementary Particles and Fields, acceptance
Abstract: We present the first observation of K- and \phi absorption within nuclear matter by means of \pi- -induced reactions on C and W targets at an incident beam momentum of 1.7 GeV/c studied with HADES at SIS18/GSI. The double ratio (K-/K+)W / (K-/K+)C is found to be 0.319 \pm 0.009(stat)+0.014-0.012 (syst) indicating a larger absorption of K- in heavier targets as compared to lighter ones. The measured \phi/K- ratios in \pi-+C and \pi^- +W reactions within the HADES acceptance are found to be equal to $0.55 \pm 0.03(stat)+0.06-0.07$ (syst) and to $0.63 \pm 0.05(stat)-0.11+0.11$ (syst), respectively. The similar ratios measured in the two different reactions demonstrate for the first time experimentally that the dynamics of the \phi meson in nuclear medium is strongly coupled to the K- dynamics. The large difference in the \phi production off C and W nuclei is discussed in terms of a strong \phiN in-medium coupling., Comment: 6 pages, 3 figures
Published: 2019
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16. Time-like baryon transitions studies with HADES

Author: A. Blanco, P. Fonte, A. Ivashkin, R. Kotte, V. Kushpil, C. Wendisch, A. Lebedev, P. Wintz, L. Silva, S. Morozov, K. Nowakowski, A. Belounnas, A. B. Kurepin, J. Kuboś, Manfred Sobiella, C. Müntz, M. Traxler, C. Deveaux, P. Tlusty, R. Greifenhagen, E. Schwab, Christoph Blume, S. Spataro, Arkadiy Taranenko, V. Mikhaylov, T. Heinz, H. Tsertos, I. Fröhlich, O. Svoboda, M. Liu, A.I. Zinchenko, B. Kardan, F. Kornas, A. Kozela, D. Pfeifer, K. H. Kampert, B. Kämpfer, R. Lalik, O. Petukhov, M. Lorenz, V. Pechenov, B. Włoch, L. Lopes, M. Gumberidze, A.P. Ierusalimov, T. Galatyuk, F. Seck, W. Koenig, C. Pauly, P. K. Kurilkin, Fedor Guber, Joachim Stroth, P. Chudoba, S. Harabasz, C. Franco, L. Naumann, P. Bordalo, Oliver Werner Arnold, M. Zuschke, Laura Fabbietti, R. Holzmann, H. Schuldes, J. Pietraszko, J. Markert, T. Hennino, I. Koenig, Vikram Patel, Andrey Reshetin, D. Dittert, Roman Gernhäuser, G. Kornakov, A. Kugler, Ilya Selyuzhenkov, Grzegorz Korcyl, V. Khomyakov, Y. Parpottas, S. Ramos, D. M. Mihaylov, M. Kajetanowicz, L. Chlad, Anna Carolina Toledo da Cunha Pereira, M. Böhmer, J. Dreyer, Alexander Belyaev, Izabela Ciepał, V. Petousis, S. Spies, A. Rost, V. P. Ladygin, S. Linev, Witold Przygoda, A. Gillitzer, L. Ritman, P. Zumbruch, O. V. Fateev, Victor Ivanov, P. Salabura, A. Zhilin, T. Kunz, H. Ströbele, B. Ramstein, F. Scozzi, M. B. Golubeva, Gennady Lykasov, J. Adamczewski-Musch, P. Rodriguez-Ramos, A. Sadovsky, M. Himmelreich, V. Wagner, C. Höhne, T. Mahmoud, M. G. Wiebusch, J. Friese, P. Sellheim, S. Maurus, P. Strzempek, J. Biernat, J. A. Garzón, Tatiana Karavicheva, A. Troyan, K. Pysz, T. Scheib, B. Arnoldi-Meadows, Volker Metag, J. Michel, J. Wirth, O. Pechenova, M. Szala, Jerzy Smyrski, Alexander Malakhov, 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), HADES, and Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)
Subjects: p p: scattering, Meson, QC1-999, Nuclear Theory, off-shell, hyperon, 01 natural sciences, Resonance (particle physics), electron: pair production, Nuclear physics, transition: electromagnetic, 0103 physical sciences, Elementary reaction, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], talk: Krakow 2018/06/07, ddc:530, structure, pi: beam, Vector meson, Nuclear Experiment, 010306 general physics, Physics, Range (particle radiation), 1-3.5 GeV-cms/nucleon, 010308 nuclear & particles physics, nucleon, Hyperon, matter: effect, vector meson, Darmstadt Lab, Baryon, HADES, kinematics, baryon resonance: production, Physics::Accelerator Physics, High Energy Physics::Experiment, Nucleon, experimental results
Abstract: The HADES collaboration uses the e+e−production as a probe of the resonance matter produced in collisions at incident energies of 1-3.5 GeV/nucleon at GSI. Elementary reactions provide useful references for these studies and give information on resonance Dalitz decays (R→Ne+e−). Such processes are sensitive to the structure of time-like electromagnetic baryon transitions in a kinematic range where (off-shell) vector mesons play a crucial role. Results obtained in proton-proton reactions and in a commissioning pion-beam experiment are reported and prospects for future pion beam experiments and for first hyperon Dalitz decay measurements are described. The connection with the investigations of medium effects to be continued with HADES in the next years at SIS18 and SIS100 is also discussed.
Published: 2019
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17. Probing dense baryon-rich matter with virtual photons

Author: I. Koenig, J. Dreyer, Alexander Belyaev, Yiannis Parpottas, Christian Sturm, Alexey Kurepin, M. Szala, Andrey Reshetin, Christoph Blume, Yu.V. Zanevsky, Vladimir Pechenov, F.F. Guber, F. Seck, Eliane Epple, L. Silva, D. M. Mihaylov, A. Kugler, L. Lopes, V. P. Ladygin, K. Nowakowski, A. Mangiarotti, Joachim Stroth, S. Spies, A. Sadovsky, Laura Fabbietti, P. Rodriguez-Ramos, B. W. Kolb, A.P. Ierusalimov, V. Wagner, T. Scheib, J. Pietraszko, Olga Pechenova, H. Tsertos, M. Boehmer, C. Muentz, V. Metag, P. Rosier, P. Bordalo, R. Gernhaeuser, A. Dybczak, S. Maurus, S. Spataro, C. Hoehne, B. Ramstein, R. Muenzer, T. Mahmoud, J. C. Berger-Chen, Sergey V. Morozov, M. Lorenz, Malgorzata Gumberidze, L. Maier, D. Dittert, Tetyana Galatyuk, P. Sellheim, Oliver Werner Arnold, Behruz Kardan, H. Stroebele, R. Holzmann, S. Hlavac, A. Rost, S. Ramos, P. Salabura, G. Korcyl, J. A. Garzón, R. Lalik, A. K. Kurilkin, Yu. G. Sobolev, Jörn Adamczewski-Musch, Marek Palka, Wolfgang Koenig, Tatiana Karavicheva, Ilya Selyuzhenkov, Erwin Schwab, J. Siebenson, C. Behnke, T. Hennino, P. K. Kurilkin, P. Filip, M. G. Wiebusch, B. Kaempfer, E. Usenko, P. Strzempek, O. Petukhov, J. Biernat, A. Blanco, P. Fonte, H. Schuldes, A. Ivashkin, Torsten Heinz, L. Chlad, R. Kotte, F. Scozzi, O. V. Fateev, C. Franco, I. Froehlich, Peter Zumbruch, S. Harabasz, A. Lebedev, G. Kornakov, A. Belounnas, M. Traxler, Jochen Markert, Christian Wendisch, C. Deveaux, R. Greifenhagen, L. Naumann, O. Svoboda, Witold Przygoda, J. Friese, T. Kunz, M.B. Golubeva, P. Tlusty, Kirill Lapidus, S. P. Chernenko, J. Michel, J. Wirth, 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), HADES, and Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)
Subjects: Big Bang, radiation: electromagnetic, Photon, heavy ion: scattering, Strong interaction, General Physics and Astronomy, Virtual particle, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 01 natural sciences, 7. Clean energy, 010305 fluids & plasmas, Nuclear physics, decoupling, pressure, photon: emission, 0103 physical sciences, 010306 general physics, neutron star, QCD matter, quantum chromodynamics: matter, Quantum chromodynamics, Physics, electron positron, matter: strong interaction, High Energy Physics::Phenomenology, big bang, Baryon, 13. Climate action, Quark–gluon plasma, spectral, High Energy Physics::Experiment, photon: virtual
Abstract: International audience; About 10 μs after the Big Bang, the universe was filled—in addition to photons and leptons—with strong-interaction matter consisting of quarks and gluons, which transitioned to hadrons at temperatures close to kT = 150 MeV and densities several times higher than those found in nuclei. This quantum chromodynamics (QCD) matter can be created in the laboratory as a transient state by colliding heavy ions at relativistic energies. The different phases in which QCD matter may exist depend for example on temperature, pressure or baryochemical potential, and can be probed by studying the emission of electromagnetic radiation. Electron–positron pairs emerge from the decay of virtual photons, which immediately decouple from the strong interaction, and thus provide information about the properties of QCD matter at various stages. Here, we report the observation of virtual photon emission from baryon-rich QCD matter. The spectral distribution of the electron–positron pairs is nearly exponential, providing evidence for a source of temperature in excess of 70 MeV with constituents whose properties have been modified, thus reflecting peculiarities of strong-interaction QCD matter. Its bulk properties are similar to the dense matter formed in the final state of a neutron star merger, as apparent from recent multimessenger observation.
Published: 2019
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18. Identical pion intensity interferometry in central Au + Au collisions at 1.23 A GeV

Author: I. Koenig, O. V. Fateev, P. Bordalo, P. K. Kurilkin, Laura Fabbietti, B. Kämpfer, Y. Parpottas, C. Deveaux, R. Greifenhagen, E. Usenko, O. Svoboda, A. Dybczak, Yu.V. Zanevsky, J. C. Berger-Chen, R. Lalik, Roman Gernhäuser, C. Wendisch, M. Gumberidze, H. Schuldes, O. Pechenova, A. Kugler, R. Holzmann, J. Markert, B. Ramstein, G. Kornakov, P. Tlusty, S. Ramos, T. Galatyuk, J. Dreyer, Alexander Belyaev, F. Scozzi, A. Blanco, P. Fonte, M. B. Golubeva, S. P. Chernenko, S. Spataro, I. Fröhlich, P. Rodriguez-Ramos, A. Ivashkin, A. Lebedev, R. Kotte, J. Pietraszko, V. P. Ladygin, S. Spies, Volker Metag, L. Naumann, P. Rosier, Witold Przygoda, L. Maier, M. Böhmer, A. Mangiarotti, C. Höhne, M. G. Wiebusch, A. K. Kurilkin, E. Epple, L. Lopes, S. Maurus, J. Michel, L. Silva, Joachim Stroth, F. Seck, A. Belounnas, A. B. Kurepin, J. Friese, C. Franco, M. Traxler, K. Nowakowski, B. W. Kolb, M. Lorenz, C. Sturm, S. Hlavac, P. Filip, A. Rost, J. Adamczewski-Musch, S. Morozov, J. Wirth, T. Mahmoud, J. Siebenson, E. Schwab, P. Strzempek, M. Szala, J. A. Garzón, Andrey Reshetin, P. Sellheim, J. Biernat, A.P. Ierusalimov, R. H. Munzer, D. M. Mihaylov, T. Scheib, T. Heinz, W. Koenig, P. Zumbruch, P. Salabura, Tatiana Karavicheva, C. Behnke, Krzysztof Piasecki, T. Kunz, H. Ströbele, Christoph Blume, V. Wagner, K. Lapidus, D. Wójcik, I. Selyuzhenkov, H. Tsertos, B. Kardan, Marek Palka, O. Petukhov, S. Harabasz, Fedor Guber, T. Hennino, Oliver Werner Arnold, Grzegorz Korcyl, L. Chlad, T. Matulewicz, A. Sadovsky, Yu. G. Sobolev, C. Müntz, V. Pechenov, Institut de Physique Nucléaire d'Orsay (IPNO), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), HADES, and 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)
Subjects: correlation: two-particle, Nuclear and High Energy Physics, heavy ion: scattering, dimension: 3, Gaussian, interferometer, transverse momentum: low, potential: Coulomb, Extrapolation, pi, FOS: Physical sciences, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 01 natural sciences, Computer Science::Digital Libraries, energy dependence, Nuclear physics, symbols.namesake, Pion, Correlation function, 0103 physical sciences, correlation function: two-particle, Nuclear Experiment (nucl-ex), 010306 general physics, Nuclear Experiment, energy: low, Physics, 010308 nuclear & particles physics, Radius, Hanbury-Brown-Twiss effect, lcsh:QC1-999, Intensity (physics), Interferometry, HADES, symbols, lcsh:Physics, Excitation, experimental results
Abstract: We investigate identical pion HBT intensity interferometry for central Au+Au collisions at 1.23A GeV. High-statistics $\pi^-\pi^-$ and $\pi^+\pi^+$ data are measured with HADES at SIS18/GSI. The radius parameters, derived from the correlation function depending on relative momenta in the longitudinal-comoving system and parametrized as three-dimensional Gaussian distribution, are studied as function of transverse momentum. A substantial charge-sign difference of the source radii is found, particularly pronounced at low transverse momentum. The extracted Coulomb-corrected source parameters agree well with a smooth extrapolation of the center-of-mass energy dependence established at higher energies, extending the corresponding excitation functions down towards a very low energy. Our data would thus rather disfavour any strong energy dependence of the radius parameters in the low energy region., Comment: 7 pages, 5 figures, updated author and grant lists
Published: 2019
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19. 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
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20. 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

21. Δ(1232) Dalitz decay in proton-proton collisions at T=1.25 GeV measured with HADES at GSI

Author: V. Pechenov, C. Höhne, M. G. Wiebusch, O. Petukhov, T. Heinz, Christoph Blume, M. Lorenz, J. Siebenson, A. Dybczak, V. Petousis, S. Hlavac, E. Schwab, O. V. Fateev, J. C. Berger-Chen, A. Rost, L. Chlad, W. Kühn, B. Ramstein, E. Usenko, A. K. Kurilkin, H. Schuldes, P. Rosier, J. Pietraszko, S. Harabasz, A.P. Ierusalimov, B. Kämpfer, W. Koenig, A. Sadovsky, F. Scozzi, L. Lopes, Marek Palka, J. Adamczewski-Musch, J. A. Garzón, P. Filip, C. Sturm, M. Gumberidze, B. W. Kolb, Fedor Guber, E. Morinière, Yu. G. Sobolev, C. Müntz, C. Wendisch, T. Scheib, I. Koenig, P. Bordalo, T. Galatyuk, A. Lebedev, Oliver Werner Arnold, R. Holzmann, L. Naumann, M. Böhmer, A. Mangiarotti, L. Silva, J. Markert, B. Kardan, L. Maier, A. Belounnas, A. B. Kurepin, A. V. Sarantsev, M. Traxler, S. Ramos, K. Nowakowski, C. Deveaux, V. P. Ladygin, T. Hennino, Roman Gernhäuser, Yu.V. Zanevsky, A. Blanco, P. Fonte, A. Kugler, A. Ivashkin, R. Kotte, P. K. Kurilkin, M. B. Golubeva, P. Rodriguez-Ramos, Sergey V. Morozov, J. Stroth, R. Lalik, T. Liu, O. Svoboda, S. Spataro, I. Fröhlich, G. Kornakov, Andrey Reshetin, C. Franco, R. H. Munzer, D. M. Mihaylov, Grzegorz Korcyl, H. Tsertos, Laura Fabbietti, T. Kunz, P. Tlusty, Kirill Lapidus, Tatiana Karavicheva, C. Behnke, Witold Przygoda, S. P. Chernenko, Volker Metag, Yiannis Parpottas, J. Michel, J. Wirth, O. Pechenova, J. Friese, H. Ströbele, V. Wagner, T. Mahmoud, P. Sellheim, P. Strzempek, E. T. Atomssa, J. Biernat, Paolo Finocchiaro, S. Maurus, F. Seck, Eliane Epple, J. Dreyer, Alexander Belyaev, P. Zumbruch, and P. Salabura
Subjects: Physics, Quark, Particle physics, Proton, 010308 nuclear & particles physics, Branching fraction, Partial wave analysis, Nuclear Theory, Hadron, Kinetic energy, 01 natural sciences, Particle identification, Nuclear physics, Particle decay, 0103 physical sciences, High Energy Physics::Experiment, Nuclear Experiment, 010306 general physics
Abstract: We report on the investigation of Δ(1232) production and decay in proton-proton collisions at a kinetic energy of 1.25 GeV measured with HADES. Exclusive dilepton decay channels ppe+e− and ppe+e−γ have been studied and compared with the partial-wave analysis of the hadronic ppπ0 channel. They allow to access both Δ+→pπ0(e+e−γ) and Δ+→pe+e− Dalitz decay channels. The perfect reconstruction of the well-known π0 Dalitz decay serves as a proof of the consistency of the analysis. The Δ Dalitz decay is identified for the first time and the sensitivity to N-Δ transition form factors is tested. The Δ(1232) Dalitz decay branching ratio is also determined for the first time; our result is (4.19 ± 0.62 syst. ± 0.34 stat.) ×10−5, albeit with some model dependence.
Published: 2017
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22. 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
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23. Λpinteraction studied via femtoscopy inp+Nbreactions atsNN=3.18GeV

Author: A. Sadovsky, A.P. Ierusalimov, V. Petousis, R. Holzmann, V. P. Ladygin, A. Rost, J. Markert, S. Ramos, G. Kornakov, V. Metag, S. P. Chernenko, Christoph Blume, A. Rustamov, M. Lorenz, J. Michel, W. Koenig, C. Höhne, T. Galatyuk, C. Franco, L. Maier, C. Deveaux, J. Wüstenfeld, O. Svoboda, J. Wirth, Marek Palka, J. Friese, Eliane Epple, T. Scheib, P. K. Kurilkin, S. Spataro, I. Fröhlich, O. V. Fateev, J. Siebenson, Tatiana Karavicheva, C. Behnke, C. Wendisch, L. Silva, S. Harabasz, E. Krebs, Laura Fabbietti, B. W. Kolb, A. Lebedev, E. T. Atomssa, K. Teilab, A. Kugler, M. Traxler, A. Dybczak, J. Stroth, J. C. Berger-Chen, Witold Przygoda, T. Mahmoud, S. Hlavac, F.F. Guber, T. Hennino, A. Krása, M. Böhmer, A. Blanco, P. Fonte, A. Mangiarotti, P. Sellheim, A. Ivashkin, R. Kotte, K. Schmidt-Sommerfeld, I. Koenig, J. A. Garzón, C. Sturm, M. Jurkovic, J. Adamczewski-Musch, K. Gill, G. Korcyl, H. Ströbele, H. Kuc, R. Lalik, A. Tarantola, L. Lopes, L. Naumann, H. Schuldes, T. A. Vasiliev, B. Kämpfer, P. Strzempek, V. Wagner, J. Biernat, B. Ramstein, M. Gumberidze, B. Kardan, G. Agakishiev, Yiannis Parpottas, S. Maurus, Alexey Kurepin, Oliver Werner Arnold, P. Zumbruch, P. Salabura, V. Pechenov, O. Pechenova, J. Pietraszko, H. Tsertos, Yu. G. Sobolev, P. Tlusty, Kirill Lapidus, C. Müntz, T. Kunz, L. Rehnisch, M.B. Golubeva, Yu.V. Zanevsky, Andrey Reshetin, R. H. Munzer, P. Bordalo, and A. K. Kurilkin
Subjects: Physics, Nuclear physics, 010308 nuclear & particles physics, 0103 physical sciences, 010306 general physics, 01 natural sciences
Published: 2016
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24. Resonance Production and Decay in Proton and Pion Induced Collisions with HADES

Author: Witold Przygoda
Subjects: Physics, Particle physics, Proton, 010308 nuclear & particles physics, Partial wave analysis, Resonance, Transport theory, 01 natural sciences, Model exchange, Nuclear physics, Pion, 0103 physical sciences, Mass spectrum, 010306 general physics, Beam energy
Published: 2016
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25. Production of in reactions at 3.5 GeV beam energy

Author: J. Otwinowski, P. Tlusty, Kirill Lapidus, A. Dybczak, J. C. Berger-Chen, A. Krása, Burkhard Kampfer, B. Spruck, A. M. Schmah, E. Schwab, S. Lang, A.P. Ierusalimov, T. Christ, A. Rustamov, I. Iori, B. Michalska, Michael Weber, Tatiana Karavicheva, T. Hennino, H. Kuc, B. W. Kolb, R. Holzmann, J. Markert, H. Ströbele, S. Yurevich, A. Tarantola, I. Koenig, C. Wendisch, Filip Krizek, V. Pechenov, Laura Fabbietti, V. Wagner, Y. C. Pachmayer, M. Gumberidze, M. Böhmer, A. Mangiarotti, S. P. Chernenko, Tetyana Galatyuk, J. S. Lange, A. Sadovsky, Andrey Reshetin, M. Lorenz, Volker Metag, Witold Przygoda, J. Michel, G. Agakishiev, W. Kühn, Marek Palka, Yu. G. Sobolev, R. H. Munzer, Fedor Guber, O. V. Fateev, C. Müntz, Y. Parpottas, Paolo Finocchiaro, O. Pechenova, K. Teilab, M. Destefanis, J. Friese, Yu.V. Zanevsky, D. González-Díaz, J. Pietraszko, D. Belver, T. Heinz, M. B. Golubeva, A. Balanda, C. Gilardi, Roman Gernhäuser, A. Kugler, A. Blanco, J. A. Garzón, M. Jurkovic, W. Koenig, L. Naumann, R. Trebacz, L. Maier, P. Fonte, K. Kanaki, A. Ivashkin, Jehad Mousa, R. Kotte, E. Castro, P. Salabura, Alexander Belyaev, F. Dohrmann, Eliane Epple, A. B. Kurepin, C. Sturm, B. Ramstein, J. Wüstenfeld, P. Cabanelas, J. Siebenson, J. L. Boyard, L. Lopes, Joachim Stroth, R. Krücken, E. Morinière, S. Spataro, I. Fröhlich, M. Traxler, R. Lalik, T. Liu, and H. Tsertos
Subjects: Physics, Nuclear and High Energy Physics, Angular distribution, 010308 nuclear & particles physics, 0103 physical sciences, Resonance, Production (computer science), Atomic physics, 010306 general physics, Kinetic energy, 01 natural sciences, Beam energy
Abstract: We study the production of Σ ± π ∓ p K + particle quartets in p + p reactions at 3.5 GeV kinetic beam energy. The data were taken with the HADES experiment at GSI. This report evaluates the contribution of resonances like Λ ( 1405 ) , Σ ( 1385 ) 0 , Λ ( 1520 ) , Δ ( 1232 ) , N ⁎ and K ⁎ 0 to the Σ ± π ∓ p K + final state. The resulting simulation model is compared to the experimental data in several angular distributions and it shows itself as suitable to evaluate the acceptance corrections properly.
Published: 2012
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26. Strange baryon resonances in pp collisions measured with HADES

Author: O. V. Fateev, I. Koenig, A. Kozuch, T. Hennino, A. Blanco, P. Fonte, A. Ivashkin, R. Kotte, A. Sadovsky, H. Kuc, Witold Przygoda, L. Naumann, V. Metag, K. Teilab, A.P. Ierusalimov, V. P. Ladygin, A. Dybczak, M. Lorenz, A. Krása, B. Michalska, R. Holzmann, Yvonne Chiara Pachmayer, Alexander Belyaev, A. Rustamov, J. Markert, M.B. Golubeva, W. Koenig, P. Tlusty, Grzegorz Korcyl, H. Ströbele, H. Tsertos, J. Friese, S. P. Chernenko, P. Cabanelas, Yu. G. Sobolev, F.F. Guber, P. Huck, Kirill Lapidus, G. Kornakov, Marek Palka, J. Michel, S. Spataro, I. Fröhlich, M. Böhmer, T. A. Vasiliev, V. Wagner, A. Kugler, A. Mangiarotti, C. Sturm, P. Salabura, A. M. Schmah, J. Siebenson, J. Wüstenfeld, B. Kämpfer, B. W. Kolb, C. Müntz, S. Lang, S. Yurevich, L. Lopes, M. Gumberidze, M. Traxler, Andrey Reshetin, R. Krücken, Yiannis Parpottas, G. Agakishiev, E. Epple, Alexey Kurepin, D. González-Díaz, Paolo Finocchiaro, A. Tarantola, J. A. Garzón, B. Ramstein, O. Pechenova, J. Stroth, M. Jurkovic, J. Pietraszko, Tatiana Karavicheva, Laura Fabbietti, T. Liu, Yu.V. Zanevsky, R. Trebacz, V. Pechenov, A. K. Kurilkin, Marc Weber, T. Galatyuk, L. Maier, W. Kühn, D. Belver, Filip Krizek, and P. K. Kurilkin
Subjects: Nuclear physics, Baryon, Physics, Nuclear and High Energy Physics, Particle physics, Spectrometer, Hyperon, Physical and Theoretical Chemistry, Condensed Matter Physics, Kinetic energy, Beam energy, Atomic and Molecular Physics, and Optics
Abstract: We present an analysis of the hyperons Λ(1405) and Σ(1385) + for p+p reactions at 3.5 GeV kinetic beam energy. The data were taken with the High Acceptance Di-Electron Spectrometer (HADES). A Λ(1405) signal could be reconstructed in both charged decay channels Λ(1405)→Σ± π ∓ . The obtained statistics of the Σ(1385) + signal allows also differential studies.
Published: 2011
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27. Partial wave analysis of HADES data for two-pion production in pion-nucleon reactions

Author: Izabela Ciepał, A. V. Sarantsev, and Witold Przygoda
Subjects: Physics, Meson production, 010308 nuclear & particles physics, QC1-999, Partial wave analysis, Nuclear Theory, Resonance, 01 natural sciences, Nuclear physics, Baryon, Pion, 0103 physical sciences, High Energy Physics::Experiment, Production (computer science), Nuclear Experiment, 010306 general physics, Nucleon
Abstract: Pion beams are perfect tools to probe resonance excitations at a fixed energy, thus properties of baryonic resonances and their coupling channels can be studied. The HADES Collaboration performed a systematic scan around the second resonance region at four different pion beam momenta 0.656, 0.69, 0.748 and 0.8 GeV/c in π− p reaction. The role of the N(1520) resonance in conjunction with the intermediate ρ-meson production has been studied in the framework of a partial wave analysis. Preliminary results on exclusive channels with one pion (π− p) and two pions (nπ+π− and pπ−π0) in the final state are presented.
Published: 2019
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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
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29. Production and decay of baryonic resonances in pion induced reactions

Author: Witold Przygoda
Subjects: Excitation function, Physics, Particle physics, 010308 nuclear & particles physics, QC1-999, Partial wave analysis, Nuclear Theory, Strangeness production, Resonance, 7. Clean energy, 01 natural sciences, Baryon, Nuclear physics, Momentum, Pion, Excited state, 0103 physical sciences, High Energy Physics::Experiment, Nuclear Experiment, 010306 general physics
Abstract: Pion induced reactions give unique opportunities for an unambiguous description of baryonic resonances and their coupling channels. A systematic energy scan and high precision data, in conjunction with a partial wave analysis, allow for the study of the excitation function of the various contributions. A review of available world data unravels strong need for modern facilities delivering measurements with a pion beam. Recently, HADES collaboration collected data in pion-induced reactions on light ( 12 C) and heavy ( 74 W) nuclei at a beam momentum of 1.7 GeV/c dedicated to strangeness production. It was followed by a systematic scan at four different pion beam momenta (0.656, 0.69, 0.748 and 0.8 GeV/c) in π − − p reaction in order to tackle the role of N (1520) resonance in conjunction with the intermediate ρ production. First results on exclusive channels with one pion ( π − p ) and two pions ( n π + π − , p π − π 0 ) in the final state are discussed.
Published: 2016

30. Dielectron Production in C+C Collisions at 2 AGeV with HADES

Author: Witold Przygoda
Subjects: Nuclear physics, Physics, Pluto, Nuclear and High Energy Physics, Particle physics, Pion, Spectrometer, Proton, Thermal, Invariant mass
Abstract: The HADES spectrometer is devoted to study production of di-electron pairs from proton, pion and nucleus induced reactions at 1−2 AGeV. The detector went into operational in 2002 and since then collected data from 12C +12 C collisions at 2 AGeV (2002) and 1 AGeV (2004), 40Ar + KCl at 1.757 GeV (2005) and proton-proton reactions at 2.2 GeV (2004) and 1.25 GeV (2006). This paper focuses on the results obtained from 12C +12 C collisions at 2 AGeV. Invariant mass corrected for reconstruction efficiencies will be shown and compared with calculations based on the thermal (PLUTO) and microscopic (HSD, RQMD, UrQMD) transport models.
Published: 2007
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31. K*(892)+production in proton-proton collisions atEbeam=3.5GeV

Author: Filip Krizek, V. Metag, M. Lorenz, F.F. Guber, P. Tlusty, R. Holzmann, J. Markert, Kirill Lapidus, M. Böhmer, A. Mangiarotti, P. Cabanelas, B. W. Kolb, T. Hennino, J. L. Boyard, A. Lebedev, V. Pechenov, O. Svoboda, A. M. Schmah, S. P. Chernenko, J. Michel, Kathrin Göbel, J. Siebenson, E. Schwab, J. Friese, J. Wüstenfeld, Roman Gernhäuser, G. Kornakov, A. Sadovsky, A. Blanco, T. A. Vasiliev, M. Traxler, A. Kugler, P. Fonte, A. Ivashkin, A.P. Ierusalimov, H. Tsertos, R. Kotte, T. Kunz, A. Dybczak, V. P. Ladygin, B. Kämpfer, Oliver Werner Arnold, J. C. Berger-Chen, W. Kühn, H. Kuc, O. Pechenova, L. Naumann, M.B. Golubeva, H. Ströbele, M. Weber, O. V. Fateev, J. A. Garzón, A. Krása, A. Rustamov, Andrey Reshetin, C. Wendisch, Yu.V. Zanevsky, M. Gumberidze, M. Jurkovic, D. Belver, J. Pietraszko, V. Wagner, R. H. Munzer, D. M. Mihaylov, I. Koenig, S. Yurevich, Yiannis Parpottas, Yu. G. Sobolev, Alexey Kurepin, D. González-Díaz, L. Maier, C. Müntz, W. Koenig, C. Sturm, Witold Przygoda, T. Heinz, A. Tarantola, S. Spataro, I. Fröhlich, J. Stroth, G. Korcyl, R. Lalik, L. Lopes, R. Krücken, G. Agakishiev, Paolo Finocchiaro, Tatiana Karavicheva, P. Salabura, Laura Fabbietti, B. Spruck, I. Iori, Tetyana Galatyuk, Eliane Epple, Alexander Belyaev, Marek Palka, K. Teilab, Yvonne Chiara Pachmayer, and B. Ramstein
Subjects: Physics, Excitation function, Nuclear and High Energy Physics, Proton, 010308 nuclear & particles physics, Nuclear Theory, Hyperon, 7. Clean energy, 01 natural sciences, Resonance (particle physics), Spectral line, Nuclear physics, Cross section (physics), Excited state, 0103 physical sciences, Atomic physics, Nuclear Experiment, 010306 general physics, Spin-½
Abstract: We present results on the K∗(892)+ production in proton-proton collisions at a beam energy of E=3.5 GeV, which is hitherto the lowest energy at which this mesonic resonance has been observed in nucleon-nucleon reactions. The data are interpreted within a two-channel model that includes the three-body production of K∗(892)+ associated with the Λ or Σ hyperon. The relative contributions of both channels are estimated. Besides the total cross section σ(p+p→K∗(892)++X)=9.5±0.9-0.9+1.1±0.7μb, which adds a new data point to the excitation function of the K∗(892)+ production in the region of low excess energy, transverse momenta and angular spectra are extracted and compared with the predictions of the two-channel model. The spin characteristics of K∗(892)+ are discussed as well in terms of the spin-alignment.
Published: 2015
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32. 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
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33. 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
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34. The HADES Pre-Shower detector

Author: J. Pietraszko, M. Kajetanowicz, A. Skoczeń, A. Balanda, M. Jaskula, Wolfgang Kuhn, M. Szczybura, W. Waluś, R. Kulessa, A. Malarz, T. Wojcik, K. Korcyl, M. Petri, W. Prokopowicz, L. Kidon, P. Salabura, Witold Przygoda, M. Wiśniowski, E. Wajda, and J. Otwinowski
Subjects: Physics, Nuclear and High Energy Physics, Spectrometer, Physics::Instrumentation and Detectors, Detector, Helium ionization detector, Scintillator, Particle detector, Particle identification, Nuclear physics, Hermetic detector, High Energy Physics::Experiment, Nuclear Experiment, Discharge ionization detector, Instrumentation
Abstract: The Pre-Shower detector was built for the high acceptance di-electron spectrometer to identify electrons produced in pion, proton and heavy ion-induced reactions in the 0.2 GeV /c momentum range. The system is composed of three layers of wire chambers interleaved with two layers of lead converters for electromagnetic shower formation. A scintillator wall is placed in front of the detector for time-of-flight measurements. The paper describes the Pre-Shower detector construction, the detector operation, the read-out electronics and its response to charged particles studied with electron, proton and heavy ion beams.
Published: 2004
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35. 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
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36. AssociateK0production inp+pcollisions at 3.5 GeV: The role ofΔ(1232)++

Author: Yu. G. Sobolev, C. Müntz, G. Kornakov, I. Koenig, B. Spruck, B. Kämpfer, Filip Krizek, E. Schwab, T. Kunz, A. Sadovsky, Alexander Belyaev, I. Iori, A.P. Ierusalimov, H. Ströbele, M.B. Golubeva, A. Dybczak, M. Gumberidze, V. Wagner, J. L. Boyard, J. C. Berger-Chen, A. Krása, Andrey Reshetin, T. Heinz, A. Rustamov, R. H. Munzer, L. Lopes, R. Krücken, P. Tlusty, P. Cabanelas, Kirill Lapidus, V. P. Ladygin, B. W. Kolb, A. M. Schmah, Kathrin Göbel, Yiannis Parpottas, J. Siebenson, Alexey Kurepin, D. González-Díaz, C. Sturm, B. Ramstein, A. Tarantola, J. A. Garzón, Eliane Epple, M. Jurkovic, Marc Weber, V. Metag, T. A. Vasiliev, M. Lorenz, K. Teilab, G. Agakishiev, W. Kühn, H. Tsertos, Paolo Finocchiaro, J. Stroth, F.F. Guber, Roman Gernhäuser, M. Böhmer, A. Mangiarotti, A. Kugler, Yvonne Chiara Pachmayer, D. Belver, C. Wendisch, Marek Palka, J. Friese, T. Galatyuk, G. Korcyl, S. Yurevich, R. Lalik, L. Maier, P. Salabura, I. Fröhlich, O. V. Fateev, Witold Przygoda, T. Hennino, R. Holzmann, J. Markert, A. Blanco, P. Fonte, A. Ivashkin, R. Kotte, Tatiana Karavicheva, Laura Fabbietti, Oliver Werner Arnold, H. Kuc, L. Naumann, O. Pechenova, J. Pietraszko, S. P. Chernenko, V. Pechenov, J. Michel, A. Lebedev, J. Wüstenfeld, M. Traxler, W. Koenig, and Yu.V. Zanevsky
Subjects: Physics, Nuclear physics, Event selection, Nuclear and High Energy Physics, Angular distribution, Phase space, Mass spectrum, Invariant mass, Production (computer science), Atomic physics, Kinetic energy
Abstract: An exclusive analysis of the four-body final states Λ+p+π++K0 and Σ0+p+π++K0 measured with HADES for p+p collisions at a beam kinetic energy of 3.5 GeV is presented. The analysis uses various phase space variables, such as missing mass and invariant mass distributions, in the four-particle event selection (p,π+,π+,π-) to find cross sections of the different production channels, contributions of the intermediate resonances Δ++ and Σ(1385)+, and corresponding angular distributions. A dominant resonant production is seen, where the reaction Λ+Δ+++K0 has a cross section about ten times higher (29.45±0.08-1.46+1.67±2.06μb) than the analogous nonresonant reaction (2.57±0.02-1.98+0.21±0.18μb). A similar result is obtained in the corresponding Σ0 channels with 9.26±0.05-0.31+1.41±0.65μb in the resonant and 1.35±0.02-1.35+0.10±0.09μb in the nonresonant reactions. © 2014 American Physical Society.
Published: 2014
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37. Dielectron production at 1-2 AGeV with HADES

Author: Witold Przygoda
Subjects: Coupling, Physics, Nuclear and High Energy Physics, Particle physics, Proton, Meson, High Energy Physics::Phenomenology, Nuclear Theory, Bremsstrahlung, Radiation, Baryon, Nuclear physics, Pion, High Energy Physics::Experiment, Nuclear Experiment, Beam (structure)
Abstract: The main goal of the HADES experiment is to study dielectron production in proton, pion and heavy-ion induced reactions using elementary and nuclear targets. At beam energies 1 – 2 AGeV the dominant sources of pairs are decays of π 0 and η mesons, NN bremsstrahlung and radiation from baryonic resonances. The vector mesons ρ , ω are created in heavy-ion collisions below or at the production threshold. As a consequence, off-shell effects and coupling to baryonic resonances are predicted to play an important role.
Published: 2009
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38. Inclusive pion andηproduction inp+Nb collisions at 3.5 GeV beam energy

Author: M.B. Golubeva, B. Spruck, Yu.V. Zanevsky, J. A. Garzón, P. Tlusty, Kirill Lapidus, Andrey Reshetin, M. Jurkovic, A. M. Schmah, C. Wendisch, Kathrin Göbel, I. Koenig, Laura Fabbietti, A. Balanda, S. Lang, R. Trebacz, F.F. Guber, S. Spataro, H. Ströbele, K. Teilab, S. Yurevich, Yu. G. Sobolev, B. Kämpfer, I. Iori, G. Agakishiev, C. Sturm, I. Fröhlich, M. Böhmer, A. Mangiarotti, V. Wagner, C. Müntz, J. L. Boyard, V. Metag, M. Lorenz, T. Heinz, E. Epple, Paolo Finocchiaro, Yvonne Chiara Pachmayer, Alexander Belyaev, V. P. Ladygin, L. Maier, R. Holzmann, J. Markert, M. Gumberidze, B. W. Kolb, J. Stroth, J. Friese, T. Hennino, W. Koenig, A. Blanco, P. Fonte, A. Ivashkin, R. Kotte, Roman Gernhäuser, H. Kuc, G. Kornakov, O. V. Fateev, A. Kugler, Yiannis Parpottas, Tatiana Karavicheva, L. Naumann, V. Pechenov, P. Cabanelas, Alexey Kurepin, D. González-Díaz, Marc Weber, W. Kühn, P. Salabura, H. Tsertos, A. Tarantola, Tetyana Galatyuk, R. Lalik, T. Liu, A. Lebedev, B. Ramstein, L. Lopes, S. P. Chernenko, Filip Krizek, R. Krücken, A. Dybczak, D. Belver, J. Michel, J. C. Berger-Chen, J. Wüstenfeld, M. Traxler, A. Krása, J. Siebenson, T. A. Vasiliev, Witold Przygoda, O. Pechenova, Marek Palka, E. Schwab, A. Sadovsky, J. Pietraszko, A.P. Ierusalimov, B. Michalska, and A. Rustamov
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, 010308 nuclear & particles physics, Nuclear Theory, Transport theory, Kinetic energy, 01 natural sciences, Nuclear physics, Pion, 0103 physical sciences, High Energy Physics::Experiment, Rapidity, Production (computer science), Nuclear Experiment, 010306 general physics, Beam energy, Energy (signal processing)
Abstract: Data on inclusive pion and $\ensuremath{\eta}$ production measured with the dielectron spectrometer HADES in the reaction $p+{}^{93}\mathrm{Nb}$ at a kinetic beam energy of 3.5 GeV are presented. Our results, obtained with the photon-conversion method, supplement the rather sparse information on neutral-meson production in proton-nucleus reactions existing for this bombarding energy regime. The reconstructed ${e}^{+}{e}^{\ensuremath{-}}{e}^{+}{e}^{\ensuremath{-}}$ transverse-momentum and rapidity distributions are confronted with transport-model calculations, which account fairly well for both ${\ensuremath{\pi}}^{0}$ and $\ensuremath{\eta}$ production.
Published: 2013
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39. New data on the differential cross section of dp-elastic scattering at 2.5 GeV with HADES Detector

Author: F.F. Guber, M. Böhmer, A. Mangiarotti, B. Kämpfer, J. A. Garzón, M. Gumberidze, A. Sadovsky, Yiannis Parpottas, P. Huck, H. Schuldes, M. Jurkovic, J. Friese, C. Höhne, A. K. Kurilkin, T. A. Vasiliev, A.P. Ierusalimov, Alexey Kurepin, D. González-Díaz, D. Belver, C. Wendisch, V. Pechenov, M.B. Golubeva, L. Lopes, C. Sturm, Yu.V. Zanevsky, P. K. Kurilkin, T. Galatyuk, Piotr Salabura, L. Maier, A. Rustamov, A. Lebedev, K. Gill, H. Kuc, Andrey Reshetin, S. Yurevich, R. Holzmann, L. Naumann, M. Weber, Filip Krizek, R. H. Munzer, J. Markert, O. Pechenova, B. Ramstein, L. Rehnisch, C. Dritsa, M. Traxler, V. Metag, J. Pietraszko, M. Lorenz, P. Cabanelas, A. Tarantola, H. Ströbele, S. P. Chernenko, K. Teilab, O. V. Fateev, V. Wagner, J. Michel, Yu. G. Sobolev, A. Kugler, S. Harabasz, E. Krebs, P. Tlusty, C. Müntz, J. Wüstenfeld, Kirill Lapidus, J. Siebenson, T. Scheib, H. Tsertos, J. Stroth, Marek Palka, O. Svoboda, G. Korcyl, W. Koenig, R. Lalik, Laura Fabbietti, S. Spataro, I. Fröhlich, S. Lang, G. Kornakov, Tatiana Karavicheva, C. Behnke, Eliane Epple, Alexander Belyaev, G. Agakishiev, T. Hennino, I. Koenig, A. Blanco, P. Fonte, A. Ivashkin, R. Kotte, P. Strzempek, Christoph Blume, A. Dybczak, J. C. Berger-Chen, A. Krása, B. W. Kolb, Witold Przygoda, and V. P. Ladygin
Subjects: Physics, Elastic scattering, Nuclear physics, Spectrometer, Deuterium, Scattering, Nuclear Theory, Detector, Center of mass, Nuclear Experiment, Wave function, Kinetic energy
Abstract: New results on the differential cross section in deuteron-proton elastic scattering are obtained at the deuteron kinetic energy of 2.5 GeV with the HADES spectrometer. The angular range of 69°-125° in the center of mass system is covered. The obtained results are compared with the relativistic multiple scattering model calculation using the CD-Bonn deuteron wave function. The data at fixed scattering angles in the c.m. are in qualitative agreement with the constituent counting rules prediction.
Published: 2013
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40. Baryonic resonances close to theK¯Nthreshold: The case ofΣ(1385)+inppcollisions

Author: T. Hennino, C. Gilardi, Jacek Tomasz Otwinowski, Marek Palka, A. Blanco, P. Fonte, A. Ivashkin, R. Kotte, B. Kämpfer, W. Kühn, L. Lopes, J. A. Garzón, I. Koenig, R. Krücken, Yu.V. Zanevsky, Tatiana Karavicheva, E. Schwab, M. Jurkovic, M. Gumberidze, Laura Fabbietti, D. Belver, A. Sadovsky, B. Ramstein, F. Dohrmann, R. Trebacz, V. Pechenov, Andrey Reshetin, Alexander Belyaev, C. Sturm, A.P. Ierusalimov, H. Kuc, A. Balanda, K. Teilab, J. S. Lange, R. H. Munzer, S. Spataro, I. Fröhlich, R. Holzmann, J. Markert, L. Naumann, M. Weber, H. Ströbele, B. Spruck, W. Koenig, Yvonne Chiara Pachmayer, A. Dybczak, T. Galatyuk, J. C. Berger-Chen, T. Christ, C. Wendisch, V. Wagner, Eliane Epple, Jehad Mousa, O. Pechenova, L. Maier, A. Krása, S. P. Chernenko, A. Rustamov, J. Michel, J. Pietraszko, M. Destefanis, T. Heinz, I. Iori, J. Wüstenfeld, J. Stroth, Yiannis Parpottas, Roman Gernhäuser, A. Kugler, S. Yurevich, E. Morinière, Yu. G. Sobolev, Alexey Kurepin, D. González-Díaz, P. Cabanelas, C. Müntz, Kalliopi Kanaki, H. Tsertos, V. Metag, O. V. Fateev, M. Traxler, M. Lorenz, R. Lalik, T. Liu, M.B. Golubeva, P. Tlusty, B. W. Kolb, Kirill Lapidus, J. Siebenson, A. M. Schmah, E. Castro, P. Salabura, Filip Krizek, S. Lang, J. L. Boyard, G. Agakishiev, Paolo Finocchiaro, J. Friese, B. Michalska, Witold Przygoda, F.F. Guber, M. Böhmer, A. Mangiarotti, and A. Tarantola
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, 010308 nuclear & particles physics, Hyperon, Sigma, 01 natural sciences, Baryon, Angular distribution, 0103 physical sciences, Production (computer science), Invariant mass, Atomic physics, 010306 general physics, Beam energy, Bar (unit)
Abstract: We present results of an exclusive measurement of the first-excited state of the $\ensuremath{\Sigma}$ hyperon, $\ensuremath{\Sigma}{(1385)}^{+}$, produced in $p+p\ensuremath{\rightarrow}{\ensuremath{\Sigma}}^{+}+{K}^{+}+n$ at $3.5\phantom{\rule{0.28em}{0ex}}\mathrm{GeV}$ beam energy. The extracted data allow the detailed study of the invariant mass distribution of the $\ensuremath{\Sigma}{(1385)}^{+}$. The mass distribution is well described by a relativistic Breit-Wigner function with a maximum at ${m}_{0}=1383.2\ifmmode\pm\else\textpm\fi{}0.9\phantom{\rule{0.28em}{0ex}}\mathrm{MeV}/{c}^{2}$ and a width of $40.2\ifmmode\pm\else\textpm\fi{}2.1\phantom{\rule{0.28em}{0ex}}\mathrm{MeV}/{c}^{2}$. The exclusive production cross section comes out to be $22.27\ifmmode\pm\else\textpm\fi{}0.89\ifmmode\pm\else\textpm\fi{}1.{56}_{\ensuremath{-}2.10}^{+3.07}\phantom{\rule{0.28em}{0ex}}\ensuremath{\mu}b$. Angular distributions of the $\ensuremath{\Sigma}{(1385)}^{+}$ in different reference frames are found to be compatible with the hypothesis that $33%$ of $\ensuremath{\Sigma}{(1385)}^{+}$ result from the decay of an intermediate broad ${\ensuremath{\Delta}}^{++}$ excitation at about $2000\phantom{\rule{0.28em}{0ex}}\mathrm{MeV}/{c}^{2}$.
Published: 2012
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41. Determination of the Σ(1385)0/Λ(1405) ratio in p+p collisions at 3.5 GeV

Author: E. Schwab, O. V. Fateev, M. Lorenz, A. Dybczak, S. P. Chernenko, Volker Metag, J. Michel, J. C. Berger-Chen, A.P. Ierusalimov, Michael Weber, M. Böhmer, Y. V. Zanevsky, A. Krása, A. Sadovsky, A. B. Kurepin, I. Iori, H. Kuc, V. Pechenov, C. Wendisch, M. B. Golubeva, A. Balanda, J. A. Garzón, Alexander Belyaev, S. Yurevich, R. Gernhäuser, J. S. Lange, Marek Palka, E. Castro, J. Friese, T. Christ, A. Rustamov, Burkhard Kampfer, E. Morinière, Yu. G. Sobolev, Fedor Guber, I. Koenig, Tatiana Karavicheva, D. González-Díaz, L. Fabbietti, Y. Parpottas, Wolfgang Kuhn, R. Holzmann, J. Markert, I. Fröhlich, Luis Lopes, A. Kugler, M. Jurkovic, V. Wagner, H. Ströbele, A. Mangiarotti, D. Belver, C. Gilardi, Jacek Tomasz Otwinowski, J. Pietraszko, Andrey Reshetin, C. Sturm, B. W. Kolb, T. Heinz, Witold Przygoda, P. Fonte, R. Trebacz, Yvonne Chiara Pachmayer, O. Pechenova, J. L. Boyard, T. Hennino, A. Ivashkin, R. Kotte, M. Traxler, C. Müntz, B. Spruck, G. Agakishiev, F. Krizek, E. Epple, F. Dohrmann, Piotr Salabura, Paolo Finocchiaro, S. Spataro, L. Naumann, Kalliopi Kanaki, P. Cabanelas, L. Maier, A. Tarantola, A. Blanco, Tetyana Galatyuk, B. Ramstein, W. Koenig, Joachim Stroth, R. Krücken, Jehad Mousa, M. Gumberidze, J. Siebenson, M. Destefanis, H. Tsertos, P. Tlusty, Kirill Lapidus, J. Wüstenfeld, R. Lalik, K. Teilab, T. Liu, A. M. Schmah, S. Lang, and B. Michalska
Subjects: Physics, Sigma, Production (computer science), Atomic physics, Lambda
Abstract: The aim of the present analysis is to determine the relative production cross sections of the Λ(1405) and Σ(1385)0 resonances in p+p collisions at Ekin = 3.5 GeV measured with HADES. Upper and lower limits have been determined for the ratio $\sigma_{(\Sigma(1385)^{0}+p+K^{+})}/\sigma_{(\Lambda(1405)+p+K^{+})}=0.76_{-0.26}^{+0.54}$. The knowledge of this ratio is an essential input for the analysis of the decay Λ(1405)→Σ± π ∓ , where an unambiguous separation of the Λ(1405) and Σ(1385)0 signals is not possible.
Published: 2012
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42. Probing properties of nuclear matter with HADES

Author: Yu.V. Zanevsky, S. P. Chernenko, J. Michel, T. A. Vasiliev, A. Sadovsky, J. Wüstenfeld, J. Friese, A.P. Ierusalimov, A. Dybczak, H. Kuc, B. Kämpfer, L. Naumann, M. Weber, A. Balanda, T. Galatyuk, R. Holzmann, J. Markert, A. Rustamov, A. Krása, Andrey Reshetin, M. Gumberidze, J. Stroth, L. Maier, Marek Palka, P. Cabanelas, A. Tarantola, O. V. Fateev, A. Kugler, K. Teilab, V. Pechenov, B. Michalska, J. Lamas-Valverde, A. K. Kurilkin, J. Siebenson, B. W. Kolb, W. Kühn, Yvonne Chiara Pachmayer, T. Liu, S. Yurevich, P. Tlusty, Kirill Lapidus, Tatiana Karavicheva, G. Agakishiev, R. Krücken, Grzegorz Korcyl, D. Belver, I. Koenig, A. Kozuch, V. Metag, A. M. Schmah, O. Pechenova, Paolo Finocchiaro, H. Tsertos, M. Lorenz, Witold Przygoda, L. Lopes, B. Ramstein, F.F. Guber, H. Ströbele, P. K. Kählitz, S. Lang, W. Koenig, M. Böhmer, A. Mangiarotti, Laura Fabbietti, V. Wagner, J. Roskoss, Ana M. Gil, J. Pietraszko, S. Spataro, I. Fröhlich, T. Hennino, Yiannis Parpottas, J. A. Garzón, Eliane Epple, M.B. Golubeva, Alexey Kurepin, D. González-Díaz, J. S. Díaz, M. Jurkovic, A. Blanco, P. Fonte, Yu. G. Sobolev, R. Trebacz, A. Ivashkin, R. Kotte, C. Müntz, Alexander Belyaev, M. Traxler, P. K. Kurilkin, Filip Krizek, E. Castro, P. Salabura, V. P. Ladygin, J. L. Boyard, G. Kornakov, C. Sturm, I. Iori, and P. Huck
Subjects: Physics, Nuclear physics, Particle physics, Nuclear matter
Abstract: G. Agakishiev6, A. Balanda3, D. Belver16, A. Belyaev6, A. Blanco2, M. Bohmer9, J. L. Boyard14, P. Cabanelas16, E. Castro16, S. Chernenko6, J. Diaz17, A. Dybczak3, E. Epple8, L. Fabbietti8, O. Fateev6, P. Finocchiaro1, P. Fonte2,b, J. Friese9, I. Frohlich7, T. Galatyuk7,c, J. A. Garzon16, A. Gil17, M. Golubeva12, D. Gonzalez-Diazd , F. Guber12, M. Gumberidze14, T. Hennino14, R. Holzmann4, P. Huck9, A. Ierusalimov6, I. Iori11, f , A. Ivashkin12, M. Jurkovic9, B. Kampfer5,e, T. Karavicheva12, I. Koenig4, W. Koenig4, B. W. Kolb4, G. Korcyl3, G. Kornakov16, R. Kotte5, A. Kozuch3,g, A. Krasa15, F. Krizek15, R. Krucken9, H. Kuc3,14, W. Kuhn10, A. Kugler15, A. Kurepin12, A. Kurilkin6, P. Kurilkin6, P. Kahlitz5, V. Ladygin6, J. Lamas-Valverde16, S. Lang4, K. Lapidus8, T. Liu14, L. Lopes2, M. Lorenz7, L. Maier9, A. Mangiarotti2, J. Markert7, V. Metag10, B. Michalska3, J. Michel7, C. Muntz7, L. Naumann5, Y. C. Pachmayer7, M. Palka7, Y. Parpottas13, V. Pechenov4, O. Pechenova7, J. Pietraszko7, W. Przygoda3, B. Ramstein14, A. Reshetin12, J. Roskoss10, A. Rustamov4, A. Sadovsky12, P. Salabura3, A. Schmaha, J. Siebenson8, Yu.G. Sobolev15, S. Spataroh, H. Strobele7, J. Stroth7,4, C. Sturm4, A. Tarantola7, K. Teilab7, P. Tlusty15, M. Traxler4, R. Trebacz3, H. Tsertos13, T. Vasiliev6, V. Wagner15, M. Weber9, J. Wustenfeld5, S. Yurevich4, Y. Zanevsky6 (HADES collaboration)
Published: 2011
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43. pp and ππ intensity interferometry in collisions of Ar+KCl at 1.76A GeV

Author: Marek Palka, M. Wisniowski, B. Sailer, A. Schmah, I. Iori, C. Gilardi, P. Huck, W. Koenig, M. Lorenz, Jehad Mousa, A. Blanco, P. Fonte, A. Ivashkin, R. Kotte, I. Koenig, M. Heilmann, Roman Gernhäuser, A. Kugler, T. Perez Cavalcanti, M. Jurkovic, T. Hennino, J. A. Garzón, D. Kirschner, S. P. Chernenko, R. Trebacz, P. Cabanelas, K. Kanaki, Piotr Salabura, L. Naumann, L. Maier, Volker Metag, G. Agakishiev, A. B. Kurepin, Tetyana Galatyuk, J. Friese, T. Wojcik, A. Sadovsky, K. Teilab, Y. C. Pachmayer, J. Michel, R. Bassini, J. Siebenson, E. Schwab, A. Dybczak, P. Zhou, Yu.V. Zanevsky, S. Yurevich, Burkhard Kampfer, D. Belver, M. Gumberidze, T. Heinz, Fedor Guber, Witold Przygoda, T. Christ, A. Rustamov, D. González-Díaz, J. S. Díaz, M. B. Golubeva, M. Böhmer, A. Mangiarotti, A. Balanda, M. Roy-Stephan, Tatiana Karavicheva, H. Ströbele, K. Lapidus, B. Michalska, A. Tarantola, V. Wagner, Andrey Reshetin, Laura Fabbietti, B. Spruck, M. Weber, B. Ramstein, Y. Parpottas, D. Mishra, M. Destefanis, P. Tlusty, B. W. Kolb, J. Otwinowski, S. Lang, C. Sturm, A. Gil, H. Tsertos, S. Spataro, J. Wüstenfeld, I. Fröhlich, T. Liu, J. L. Boyard, L. Lopes, Joachim Stroth, R. Krücken, E. Morinière, F. Dohrmann, Wolfgang Kuhn, P. Zumbruch, E. Castro, M. Traxler, B. Bannier, T. Eberl, E. Epple, Paolo Finocchiaro, O. Pechenova, J. Pietraszko, Yu. G. Sobolev, C. Müntz, C. Wendisch, Filip Krizek, V. Pechenov, J. S. Lange, Alexander Belyaev, O. V. Fateev, R. Holzmann, J. Markert, Institut de Physique Nucléaire d'Orsay (IPNO), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Instituto de Fisica Corpuscular (IFIC), Consejo Superior de Investigaciones Científicas [Madrid] (CSIC)-Universitat de València (UV), HADES, and 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)
Subjects: Nuclear reaction, Physics, Nuclear and High Energy Physics, 010308 nuclear & particles physics, Hadron, Radius, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], 01 natural sciences, Nuclear physics, Momentum, Pion, Pair production, Correlation function, 0103 physical sciences, Atomic physics, 010306 general physics, Nucleon, Nuclear Experiment
Abstract: Results on pp, π+π+, and π-π- intensity interferometry are reported for collisions of Ar+KCl at 1.76$A$~GeV beam energy, studied with the High Acceptance Di-Electron Spectrometer (HADES) at SIS18/GSI. The experimental correlation functions as a function of the relative momentum are compared to model calculations allowing the determination of the space-time extent of the corresponding emission sources. The π π source radii are found significantly larger than the pp emission radius. The present radii do well complement the source-size excitation functions of the collision system of size $A+A \simeq 40+40$. The pp source radius at fixed beam energy is found to increase linearly with the cube root of the number of participants. From this trend, a lower limit of the pp correlation radius is deduced.
Published: 2011
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44. Λ−pfemtoscopy in collisions ofAr+KClat1.76A GeV

Author: Andrey Reshetin, V. Metag, M. Lorenz, Yvonne Chiara Pachmayer, M. Destefanis, J. A. Garzón, M. Jurkovic, R. Holzmann, J. Markert, R. Trebacz, A. Dybczak, Roman Gernhäuser, A. Kugler, P. Tlusty, Kirill Lapidus, Yiannis Parpottas, F.F. Guber, O. Pechenova, Alexey Kurepin, M. Böhmer, A. Mangiarotti, D. González-Díaz, J. S. Díaz, B. Michalska, A. M. Schmah, J. Pietraszko, B. Sailer, D. Kirschner, C. Wendisch, M. Sudol, B. Ramstein, S. Lang, J. L. Boyard, S. Yurevich, Witold Przygoda, M. Roy-Stephan, T. Hennino, C. Gilardi, O. V. Fateev, Jacek Tomasz Otwinowski, V. Pechenov, Marek Palka, M. Wisniowski, T. Galatyuk, B. W. Kolb, A. Blanco, P. Fonte, I. Koenig, A. Ivashkin, R. Kotte, B. Spruck, P. Zhou, M.B. Golubeva, L. Maier, Laura Fabbietti, S. P. Chernenko, J. S. Lange, A. Tarantola, M. Traxler, I. Iori, J. Friese, T. Wojcik, J. Michel, E. Morinière, Yu. G. Sobolev, H. Ströbele, B. Kämpfer, R. Bassini, J. Wüstenfeld, C. Müntz, P. Zumbruch, E. Castro, P. Salabura, V. Wagner, W. Koenig, Alexander Belyaev, W. Kühn, Jehad Mousa, Ana M. Gil, Filip Krizek, Tatiana Karavicheva, G. Agakishiev, Yu.V. Zanevsky, T. Eberl, L. Naumann, M. Weber, Paolo Finocchiaro, D. Belver, A. Balanda, F. Dohrmann, C. Sturm, P. Cabanelas, L. Lopes, R. Krücken, D. K. Mishra, J. Stroth, A. Sadovsky, T. Liu, S. Spataro, I. Fröhlich, T. Christ, A. Rustamov, Kalliopi Kanaki, H. Tsertos, Peter Braun-Munzinger, and K. Teilab
Subjects: Physics, Nuclear and High Energy Physics, 010308 nuclear & particles physics, Collision system, Radius, Lambda, 01 natural sciences, Nuclear physics, 0103 physical sciences, Experimental correlation, Nuclear Experiment, 010306 general physics, Beam energy, Energy (signal processing)
Abstract: Results on $\ensuremath{\Lambda}p$ femtoscopy are reported at the lowest energy so far. At a beam energy of $1.76A$ GeV, the reaction $\mathrm{Ar}+\mathrm{KCl}$ was studied with the High Acceptance Di-Electron Spectrometer (HADES) at SIS18/GSI. A high-statistics and high-purity $\ensuremath{\Lambda}$ sample was collected, allowing for the investigation of $\ensuremath{\Lambda}p$ correlations at low relative momenta. The experimental correlation function is compared to corresponding model calculations allowing the determination of the space-time extent of the $\ensuremath{\Lambda}p$ emission source. The $\ensuremath{\Lambda}p$ source radius is found to be slightly smaller than the $\mathit{pp}$ correlation radius for a similar collision system. The present $\ensuremath{\Lambda}p$ radius is significantly smaller than that found for $\mathrm{Au}+\mathrm{Au}/\mathrm{Pb}+\mathrm{Pb}$ collisions in the AGS, SPS, and RHIC energy domains but larger than that observed for electroproduction from He. Taking into account all available data, we find the $\ensuremath{\Lambda}p$ source radius to increase almost linearly with the number of participants to the power of one-third.
Published: 2010
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45. ϕ decay: A relevant source forK−production at energies available at the GSI Schwerionen-Synchrotron (SIS)?

Author: B. Spruck, I. Iori, J. Friese, T. Wojcik, C. Sturm, J. L. Boyard, Tatiana Karavicheva, V. Pechenov, O. V. Fateev, P. Cabanelas, P. Zhou, W. Kühn, Witold Przygoda, S. Spataro, D. Belver, J. S. Lange, T. Perez Cavalcanti, R. Holzmann, J. Markert, E. Schwab, I. Fröhlich, M. Roy-Stephan, A. Sadovsky, S. Yurevich, B. Kämpfer, A.P. Ierusalimov, P. Zumbruch, E. Castro, M. Traxler, Kalliopi Kanaki, H. Tsertos, T. Galatyuk, B. Michalska, Piotr Salabura, Marek Palka, M. Wisniowski, Peter Braun-Munzinger, L. Maier, Yu.V. Zanevsky, L. Lopes, T. Christ, A. Rustamov, W. Koenig, V. Metag, Yiannis Parpottas, Laura Fabbietti, Jehad Mousa, Ana M. Gil, Alexey Kurepin, D. González-Díaz, J. S. Díaz, R. Krücken, M.B. Golubeva, Andrzej Bałanda, D. Kirschner, M. Lorenz, O. Pechenova, H. Ströbele, Filip Krizek, B. Ramstein, J. Pietraszko, V. Wagner, K. Teilab, E. Morinière, Yu. G. Sobolev, Andrey Reshetin, C. Müntz, Yvonne Chiara Pachmayer, D. K. Mishra, J. Stroth, Alexander Belyaev, T. Liu, M. Sudol, M. Destefanis, B. Bannier, P. Tlusty, Kirill Lapidus, G. Agakishiev, T. Eberl, Paolo Finocchiaro, A. M. Schmah, S. Lang, B. W. Kolb, A. Dybczak, I. Koenig, S. P. Chernenko, J. Michel, R. Bassini, J. Wüstenfeld, F. Dohrmann, L. Naumann, M. Weber, B. Sailer, T. Heinz, A. Tarantola, F.F. Guber, M. Böhmer, A. Mangiarotti, T. Hennino, C. Gilardi, Jacek Tomasz Otwinowski, A. Blanco, P. Fonte, A. Ivashkin, R. Kotte, M. Heilmann, Roman Gernhäuser, A. Kugler, J. A. Garzón, M. Jurkovic, and R. Trebacz
Subjects: Nuclear physics, Physics, Nuclear and High Energy Physics, Meson production, 010308 nuclear & particles physics, 0103 physical sciences, 010306 general physics, 01 natural sciences, 7. Clean energy
Abstract: We gratefully acknowledge the useful discussions with H. Oeschler and K. Redlich. In particular we thank K. Redlich for providing the calculations by the statistical model. The HADES Collaboration gratefully acknowledges support from the following: BMBF Grants 06TM970I, 06GI146I, 06F-140, and 06DR135 (Germany); GSI (TMFR1, GI/ME3, OF/STR); Excellence Cluster of Universe (Germany); Grants GA AS CR IAA100480803 and MSMT LC 07050 (Czech Republic); Grant KBN 5P03B 140 20 (Poland); INFN (Italy); CNRS/IN2P3 (France);GrantsMCYT FPA2000-2041-C02-02 and XUGA PGID T02PXIC20605PN (Spain); Grant UCY-10.3.11.12 (Cyprus); INTAS Grant 06- 1000012-8861; and EU Contract RII3-CT-2004-506078.
Published: 2009
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46. Dielectron Production inC12+C12Collisions at2A GeVwith the HADES Spectrometer

Author: B. W. Kolb, T. Hennino, C. Gilardi, Jacek Tomasz Otwinowski, D. Magestro, R. Coniglione, A. Ivashkin, E. Schwab, A. Sadovsky, G. Bellia, R. Kotte, A.P. Ierusalimov, F. Dohrmann, Kalliopi Kanaki, J. Friese, T. Wojcik, T. Christ, A. Rustamov, P. Cabanelas, J. A. Garzón, M. Sudol, H. Tsertos, Tatiana Karavicheva, M. Jurkovic, O. V. Fateev, Alexey Kurepin, D. González-Díaz, J. S. Díaz, C. Agodi, M. Jaskula, W. Kühn, M. Suk, Peter Braun-Munzinger, Alberica Toia, Karl Zeitelhack, C. Sturm, C. Schröder, J. L. Boyard, P. Zumbruch, Yu.V. Zanevsky, Andrey Reshetin, H. J. Körner, B. Spruck, D. Vassiliev, W. Schön, V. Pechenov, H. Ströbele, A. Vazquez, T. Eberl, Paolo Finocchiaro, V. T. Smolyankin, M. Kagarlis, Adam Malarz, B. Sailer, A. Taranenko, V. Wagner, C. Fernandez, W. Koenig, I. Iori, Wolfgang Enghardt, Jehad Mousa, Piotr Salabura, M. Ploskon, Witold Przygoda, T. Pérez, E. Lins, A. Nekhaev, H. Alvarez-Pol, S. Lange, Laura Fabbietti, C. Müntz, R.S. Simon, A. Balanda, M. Roy-Stephan, M. Sánchez, D. Zovinec, Paul Kienle, V. Pospíšil, M.B. Golubeva, L. Kidon, Luigi Cosentino, G. Agakichiev, Paolo Sapienza, R. Holzmann, J. Markert, P. Tlusty, M. Traxler, B. Kämpfer, A. M. Schmah, E. Grosse, I. Duran, S. Hlavac, Yvonne Chiara Pachmayer, B. Fuentes, H. Schön, S. Lang, J. Pietraszko, Paolo Piattelli, M. Münch, J. Lehnert, W. Prokopowicz, H. Bokemeyer, B. Ramstein, Jaroslav Bielcik, R. Krücken, Władysław Waluś, S. Spataro, I. Fröhlich, R. Pleskac, J. Stroth, I. Koenig, M. Wiśniowski, J. Homolka, L. Naumann, Jan Novotny, L. Smykov, J. Ritman, S. P. Chernenko, J. Wüstenfeld, D. Bertini, F.F. Guber, M. Böhmer, C. Garabatos, C. Maiolino, Reinhard Kulessa, Roman Gernhäuser, A. Kugler, M. Kajetanowicz, A. Kastenmüller, and V. Metag
Subjects: Physics, Particle physics, 010308 nuclear & particles physics, General Physics and Astronomy, Electron, 7. Clean energy, 01 natural sciences, Omega, Nuclear physics, Particle decay, Pair production, Orders of magnitude (time), 0103 physical sciences, Mass spectrum, High Energy Physics::Experiment, Production (computer science), Nuclear Experiment, 010306 general physics, Nucleon
Abstract: The invariant-mass spectrum of e{sup +}e{sup -} pairs produced in {sup 12}C+{sup 12}C collisions at an incident energy of 2 GeV per nucleon has been measured for the first time. The measured pair production probabilities span over 5 orders of magnitude from the {pi}{sup 0}-Dalitz to the {rho}/{omega} invariant-mass region. Dalitz decays of {pi}{sup 0} and {eta} account for all the yield up to 0.15 GeV/c{sup 2}, but for only about 50% above this mass. A comparison with model calculations shows that the excess pair yield is likely due to baryon-resonance and vector-meson decays. Transport calculations based on vacuum spectral functions fail, however, to describe the entire mass region.
Published: 2007
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47. Dielectron production in C+C and p+p collisions with HADES

Author: R. Gernhóuser, H. Ströbele, B. Kämpfer, Peter Senger, Andrey Reshetin, V. Wagner, B. Spruck, T. Hennino, C. Gilardi, P. Zumbruch, E. Castro, B. Ramstein, P. Fonte, A. Ivashkin, M. Sudol, R. Pleskac, J. Marín, R. Kotte, G. Bellia, M. Heilmann, M. Destefanis, A.P. Ierusalimov, F. Dohrmann, I. Veretenkin, J. A. Garzón, I. Iori, R.S. Simon, M. Jurkovic, R. Holzmann, P. Tlusty, K. Teilab, D. González-Díaz, J. S. Díaz, J. Mousa, T. Christ, A. Rustamov, J. Markert, R. Trȩbacz, Yu.V. Zanevsky, G. Agakishiev, Paolo Finocchiaro, Joachim Stroth, M. Roy-Stephan, W. Koenig, A. Blanco, Tatiana Karavicheva, A. M. Schmah, Ch. Hadjivasiliou, R. Krücken, Wolfgang Kuhn, L. Lopez, Y. C. Pachmayer, S. Spataro, J. Lamas-Valverde, Thomas Eberl, I. Duran, S. Lang, A. B. Kurepin, M. Traxler, Fedor Guber, R. Novotny, J. Pietraszko, M. Böhmer, A. Mangiarotti, K.A. Shileev, J. L. Boyard, Alexander Belyaev, S. Lange, M. B. Golubeva, Marek Palka, I. Frhölich, B. Sailer, I. Koenig, E. Morinière, A. Balanda, L. Naumann, B. W. Kolb, J. Otwinowski, Laura Fabbietti, Eckart Grosse, C. Müntz, A. Kugler, M. Wiśniowski, H. Wen, S. P. Chernenko, Volker Metag, M. Münch, Kalliopi Kanaki, H. Tsertos, D. Belver, D. Kirschner, O. V. Fateev, C. Agodi, J. Wüstenfeld, V. Pospíšil, Peter Braun-Munzinger, C. Sturm, A. Sadovsky, T. Galatyuk, Piotr Salabura, T. Pérez, V. Pechenov, D. Mishra, Filip Krizek, J. Friese, T. Wojcik, Witold Przygoda, B. Michalska, and P. Cabanelas
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Rho meson, Spectrometer, Hadron, Nuclear Theory, Astronomy and Astrophysics, HEAVY-ION COLLISIONS, Nuclear matter, Dilepton production, Atomic and Molecular Physics, and Optics, Energies, Nuclear physics, Pion, heavy ion collisions, dilepton production, RING RECOGNITION, RHO-MESON, ρ-meson, Heavy ion collisions, Heavy ion, High Energy Physics::Experiment, Nuclear Experiment, Ring Recognition
Abstract: 9 pages.-- HADES Collaboration: et al., The High Acceptance Di-Electron Spectrometer HADES has been constructed at the SIS accelerator (GSI Darmstadt) to investigate electron-positron pairs produced in proton, pion and heavy ion induced reactions. The main goal of these studies is to explore properties of hadrons in nuclear matter. The apparatus and the experimental results from C+C at 2.0 AGeV and 1.0 AGeV and p+p at 2.2 GeV compared with Monte-Carlo events from a generator based on known cross-sections and branching ratios are presented.
Published: 2007

48. PERFORMANCE OF THE PRE-SHOWER SYSTEM IN THE HADES SPECTROMETER

Author: W. Waluś, T. Wojcik, K. Korcyl, J. Pietraszko, A. Balanda, A. Skoczeń, M. Płoskoń, L. Kidon, J. Otwinowski, E. Lubkiewicz, Witold Przygoda, R. Kulessa, M. Jaskula, W. Prokopowicz, E. Wajda, A. Malarz, P. Salabura, and M. Kajetanowicz
Subjects: Shower, Spectrometer, business.industry, Computer science, business, Computer hardware
Published: 2002
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49. Single-pion production in proton-proton collisions at 1.25 GeV: measurements by HADES and a PWA

Author: Witold Przygoda
Subjects: Nuclear physics, Physics, Pion, Proton, QC1-999, Partial wave analysis, Production (computer science), Nuclear Experiment, Kinetic energy, 7. Clean energy, Resonance (particle physics), Parametrization
Abstract: We report on the single-pion production in proton-proton collisions at a kinetic energy of 1.25 GeV based on data measured with HADES. Exclusive channels $np\pi ^{+}$ and $pp\pi ^{0}$ were studied simultaneously. The parametrization of production cross sections of the one-pion final states by means of the resonance model has been obtained. Independently, the extraction of the leading partial waves in the data were analyzed within the framework of the partial wave analysis (PWA). Contributions for the production of $\Delta$(1232) and N(1440) intermediate states have been deduced.
Published: 2014
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