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64 results on '"Frohlich I"'

1. The TRB for HADES and FAIR experiments at GSI

Author

Krzemien, W., Frohlich, I., Kajetanowicz, M., Korcyl, K., Michel, J., Palka, M., Salabura, P., Schrader, C., Skott, P., Strobele, H., Stroth, J., Tarantola, A., Traxler, M., and Trebacz, R.

Subjects
Nuclear Experiment
Abstract

The TRB hardware module is a multi-purpose Trigger and Readout Board with on-board DAQ functionality developed for the upgrade of the HADES experiment. It contains a single computer chip (Etrax) running Linux as a well as a 100 Mbit/s Ethernet interface. It has been orginally designed to work as a 128-channel Time to Digital Converter based on the HPTDC chip from CERN. The new version contains a 2 Gbit/s optical link and an interface connector (15 Gbit/s) in order to realize an add-on card concept which makes the hardware very flexible. Moreover, an FPGA chip (Xilinx, Virtex 4 LX 40) and a TigerSharc DSP provide new computing resources which can be used to run on-line analysis algorithms. The TRB is proposed as a prototype for new modules for the planned detector systems PANDA and CBM at the future FAIR facility at GSI-Darmstadt., Comment: Presented at 10th ICATPP Conference on Astroparticle, Particle and Space Physics, Detectors and Medical Physics Applications, Villa Olmo, Como, 8-12 October 2007 5 pages, 2 figures

Published
2008

2. A general purpose trigger and readout board for HADES and FAIR-Experiments

Author

Frohlich, I., Kajetanowicz, M., Korcyl, K., Krzemien, W., Palka, M., Salabura, P., Schrader, C., Skott, P., Strobele, H., Stroth, J., Tarantola, A., Traxler, M., Trebacz, R., and Yurevich, S.

Subjects
Algorithms -- Methods, Spectrometer -- Usage, Data entry -- Methods, Radiation warning systems -- Usage, Algorithm, Business, Electronics, Electronics and electrical industries
Abstract

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

Published
2008

3. Proton-number fluctuations in sNN =2.4 GeV Au + Au collisions studied with the High-Acceptance DiElectron Spectrometer (HADES) PROTON-NUMBER FLUCTUATIONS in sNN =2.4 GeV Au + Au ... J. ADAMCZEWSKI-MUSCH et al

Author

Adamczewski-Musch, J., Arnold, O., Behnke, C., Belounnas, A., Belyaev, A., Berger-Chen, J. C., Blanco, A., Blume, C., Bohmer, M., Bordalo, P., Chernenko, S., Chlad, L., Ciepal, I., Deveaux, C., Dreyer, J., Epple, E., Fabbietti, L., Fateev, O., Filip, P., Fonte, P., Franco, C., Friese, J., Frohlich, I., Galatyuk, T., Garzon, J. A., Gernhauser, R., Golubeva, M., Greifenhagen, R., Guber, F., Gumberidze, M., Harabasz, S., Heinz, T., Hennino, T., Hlavac, S., Hohne, C., Holzmann, R., Ierusalimov, A., Ivashkin, A., Kampfer, B., Karavicheva, T., Kardan, B., Koenig, I., Koenig, W., Kohls, M., Kolb, B. W., Korcyl, G., Kornakov, G., Kornas, F., Kotte, R., Kugler, A., Kunz, T., Kurepin, A., Kurilkin, A., Kurilkin, P., Ladygin, V., Lalik, R., Lapidus, K., Lebedev, A., Lopes, L., Lorenz, M., Mahmoud, T., Maier, L., Malige, A., Mangiarotti, A., Markert, J., Matulewicz, T., Maurus, S., Metag, V., Michel, J., Mihaylov, D. M., Morozov, S., Muntz, C., Munzer, R., Naumann, L., Nowakowski, K., Parpottas, Y., Pechenov, V., Pechenova, O., Petukhov, O., Piasecki, K., Pietraszko, J., Przygoda, W., Pysz, K., Ramos, S., Ramstein, B., Rathod, N., Reshetin, A., Rodriguez-Ramos, P., Rosier, P., Rost, A., Rustamov, A., Sadovsky, A., Salabura, P., Scheib, T., Schuldes, H., Schwab, E., Scozzi, F., Seck, F., Sellheim, P., Selyuzhenkov, I., Siebenson, J., Silva, L., Singh, U., Smyrski, J., Sobolev, Y. G., Spataro, S., Spies, S., Strobele, H., Stroth, J., Sturm, C., Svoboda, O., Szala, M., Tlusty, P., Traxler, M., Tsertos, H., Usenko, E., Wagner, V., Wendisch, C., Wiebusch, M. G., Wirth, J., Wojcik, D., Zanevsky, Y., and Zumbruch, P.

Published
2020

4. Identical pion intensity interferometry at √sNN=2.4GeV : HADES collaboration

Author

Adamczewski-Musch, J., Arnold, O., Behnke, C., Belounnas, A., Belyaev, A., Berger-Chen, J. C., Biernat, J., Blanco, A., Blume, C., Bohmer, M., Bordalo, P., Chernenko, S., Chlad, L., Deveaux, C., Dreyer, J., Dybczak, A., Epple, E., Fabbietti, L., Fateev, O., Filip, P., Fonte, P., Franco, C., Friese, J., Frohlich, I., Galatyuk, T., Garzon, J. A., Gernhauser, R., Golubeva, M., Greifenhagen, R., Guber, F., Gumberidze, M., Harabasz, S., Heinz, T., Hennino, T., Hlavac, S., Hohne, C., Holzmann, R., Ierusalimov, A., Ivashkin, A., Kampfer, B., Karavicheva, T., Kardan, B., Koenig, I., Koenig, W., Kolb, B. W., Korcyl, G., Kornakov, G., Kornas, F., Kotte, R., Kugler, A., Kunz, T., Kurepin, A., Kurilkin, A., Kurilkin, P., Ladygin, V., Lalik, R., Lapidus, K., Lebedev, A., Lopes, L., Lorenz, M., Mahmoud, T., Maier, L., Mangiarotti, A., Markert, J., Matulewicz, T., Maurus, S., Metag, V., Michel, J., Mihaylov, D. M., Morozov, S., Muntz, C., Munzer, R., Naumann, L., Nowakowski, K., Palka, M., Parpottas, Y., Pechenov, V., Pechenova, O., Petukhov, O., Piasecki, K., Pietraszko, J., Przygoda, W., Ramos, S., Ramstein, B., Reshetin, A., Rodriguez-Ramos, P., Rosier, P., Rost, A., Sadovsky, A., Salabura, P., Scheib, T., Schuldes, H., Schwab, E., Scozzi, F., Seck, F., Sellheim, P., Selyuzhenkov, I., Siebenson, J., Silva, L., Sobolev, Y. G., Spataro, S., Spies, S., Strobele, H., Stroth, J., Strzempek, P., Sturm, C., Svoboda, O., Szala, M., Tlusty, P., Traxler, M., Tsertos, H., Usenko, E., Wagner, V., Wendisch, C., Wiebusch, M. G., Wirth, J., Wojcik, D., Zanevsky, Y., and Zumbruch, P.

Published
2020

5. Charged-pion production in Au+ Au collisions at √sNN=2.4GeV : HADES Collaboration

Author

Adamczewski-Musch, J., Arnold, O., Behnke, C., Belounnas, A., Belyaev, A., Berger-Chen, J. C., Blanco, A., Blume, C., Bohmer, M., Bordalo, P., Chernenko, S., Chlad, L., Ciepal, I., Deveaux, C., Dreyer, J., Epple, E., Fabbietti, L., Fateev, O., Filip, P., Fonte, P., Franco, C., Friese, J., Frohlich, I., Galatyuk, T., Garzon, J. A., Gernhauser, R., Glassel, S., Golubeva, M., Greifenhagen, R., Guber, F., Gumberidze, M., Harabasz, S., Heinz, T., Hennino, T., Hlavac, S., Hohne, C., Holzmann, R., Ierusalimov, A., Ivashkin, A., Kampfer, B., Karavicheva, T., Kardan, B., Koenig, I., Koenig, W., Kohls, M., Kolb, B. W., Korcyl, G., Kornakov, G., Kornas, F., Kotte, R., Kugler, A., Kunz, T., Kurepin, A., Kurilkin, A., Kurilkin, P., Ladygin, V., Lalik, R., Lapidus, K., Lebedev, A., Lopes, L., Lorenz, M., Mahmoud, T., Maier, L., Malige, A., Mangiarotti, A., Markert, J., Matulewicz, T., Maurus, S., Metag, V., Michel, J., Mihaylov, D. M., Morozov, S., Muntz, C., Munzer, R., Naumann, L., Nowakowski, K., Parpottas, Y., Pechenov, V., Pechenova, O., Petukhov, O., Piasecki, K., Pietraszko, J., Przygoda, W., Pysz, K., Ramos, S., Ramstein, B., Rathod, N., Reshetin, A., Rodriguez-Ramos, P., Rosier, P., Rost, A., Rustamov, A., Sadovsky, A., Salabura, P., Scheib, T., Schuldes, H., Schwab, E., Scozzi, F., Seck, F., Sellheim, P., Selyuzhenkov, I., Siebenson, J., Silva, L., Singh, U., Smyrski, J., Sobolev, Y. G., Spataro, S., Spies, S., Strobele, H., Stroth, J., Sturm, C., Svoboda, O., Szala, M., Tlusty, P., Traxler, M., Tsertos, H., Usenko, E., Wagner, V., Wendisch, C., Wiebusch, M. G., Wirth, J., Wojcik, D., Zanevsky, Y., and Zumbruch, P.

Published
2020

6. Sub-threshold production of K s0 mesons and Λ hyperons in Au+Au collisions at s NN =2.4 GeV

Author

Adamczewski-Musch, J., Arnold, O., Behnke, C., Belounnas, A., Belyaev, A., Berger-Chen, J. C., Biernat, J., Blanco, A., Blume, C., Bohmer, M., Bordalo, P., Chernenko, S., Chlad, L., Deveaux, C., Dreyer, J., Dybczak, A., Epple, E., Fabbietti, L., Fateev, O., Filip, P., Fonte, P., Franco, C., Friese, J., Frohlich, I., Galatyuk, T., Garzon, J. A., Gernhauser, R., Golubeva, M., Greifenhagen, R., Guber, F., Gumberidze, M., Harabasz, S., Heinz, T., Hennino, T., Hlavac, S., Hohne, C., Holzmann, R., Ierusalimov, A., Ivashkin, A., Kampfer, B., Karavicheva, T., Kardan, B., Koenig, I., Koenig, W., Kolb, B. W., Korcyl, G., Kornakov, G., Kotte, R., Kugler, A., Kunz, T., Kurepin, A., Kurilkin, A., Kurilkin, P., Ladygin, V., Lalik, R., Lapidus, K., Lebedev, A., Lopes, L., Lorenz, M., Mahmoud, T., Maier, L., Mangiarotti, A., Markert, J., Maurus, S., Metag, V., Michel, J., Mihaylov, D. M., Morozov, S., Muntz, C., Munzer, R., Naumann, L., Nowakowski, K., Palka, M., Parpottas, Y., Pechenov, V., Pechenova, O., Petukhov, O., Pietraszko, J., Przygoda, W., Ramos, S., Ramstein, B., Reshetin, A., Rodriguez-Ramos, P., Rosier, P., Rost, A., Sadovsky, A., Salabura, P., Scheib, T., Schuldes, H., Schwab, E., Scozzi, F., Seck, F., Sellheim, P., Selyuzhenkov, I., Siebenson, J., Silva, L., Sobolev, Y. G., Spataro, S., Spies, S., Strobele, H., Stroth, J., Strzempek, P., Sturm, C., Svoboda, O., Szala, M., Tlusty, P., Traxler, M., Tsertos, H., Usenko, E., Wagner, V., Wendisch, C., Wiebusch, M. G., Wirth, J., Zanevsky, Y., Zumbruch, P., and Leifels, Y.

Published
2019

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

Author

Adamczewski-Musch, J., Arnold, O., Atomssa, E. T., Behnke, C., Belounnas, A., Belyaev, A., Berger-Chen, J. C., Biernat, J., Blanco, A., Blume, C., Bohmer, M., Bordalo, P., Chernenko, S., Chlad, L., Deveaux, C., Dreyer, J., Dybczak, A., Epple, E., Fabbietti, L., Fateev, O., Filip, P., Finocchiaro, P., Fonte, P., Franco, C., Friese, J., Frohlich, I., Galatyuk, T., Garzon, J. A., Gernhauser, R., Golubeva, M., Guber, F., Gumberidze, M., Harabasz, S., Heinz, T., Hennino, T., Hlavac, S., Hohne, C., Holzmann, R., Ierusalimov, A., Ivashkin, A., Kampfer, B., Karavicheva, T., Kardan, B., Koenig, I., Koenig, W., Kolb, B. W., Korcyl, G., Kornakov, G., Kotte, R., Kuhn, W., Kugler, A., Kunz, T., Kurepin, A., Kurilkin, A., Kurilkin, P., Ladygin, V., Lalik, R., Lapidus, K., Lebedev, A., Liu, T., Lopes, L., Lorenz, M., Mahmoud, T., Maier, L., Mangiarotti, A., Markert, J., Maurus, S., Metag, V., Michel, J., Moriniere, E., Mihaylov, D. M., Morozov, S., Muntz, C., Munzer, R., Naumann, L., Nowakowski, K., Palka, M., Parpottas, Y., Pechenov, V., Pechenova, O., Petousis, V., Petukhov, O., Pietraszko, J., Przygoda, W., Ramos, S., Ramstein, B., Reshetin, A., Rodriguez-Ramos, P., Rosier, P., Rost, A., Sadovsky, A., Salabura, P., Scheib, T., Schuldes, H., Schwab, E., Scozzi, F., Seck, F., Sellheim, P., Siebenson, J., Silva, L., Sobolev, Y. G., Spataro, S., Strobele, H., Stroth, J., Strzempek, P., Sturm, C., Svoboda, O., Tlusty, P., Traxler, M., Tsertos, H., Usenko, E., Wagner, V., Wendisch, C., Wiebusch, M. G., Wirth, J., Zanevsky, Y., Zumbruch, P., and Sarantsev, A. V.

Published
2017

8. The Multiple Sclerosis Genomic Map: Role of peripheral immune cells and resident microglia in susceptibility

Author

Ashley Beecham, David A. Hafler, Colombe J, Ublick K, Stephen Sawcer, Marcus C. S. Lee, Adam Santaniello, An Goris, Frank Seibold, Xavier Montalban, G. Comi, Christiane Gasperi, Sandra D'Alfonso, Federica Esposito, Laurent Peyrin-Biroulet, Frauke Zipp, Ioanna Konidari, Elisabeth Gulowsen Celius, Achim Berthele, Amoroso A, Rogier Q. Hintzen, Johan Van Limbergen, Marieme Dembele, Fredrik Karpe, Zhang W, Robbins A, Moiola L, Annette Bang Oturai, Cristin McCabe, Filippo Martinelli-Boneschi, M Lindén, Keith R Edwards, Hanne F. Harbo, Zuccalà M, Marc Lémann, Felix Luessi, Noriko Isobe, Nadia Barizzone, Renata D'Incà, Croft A, Ioannis S. Vlachos, Frohlich I, Martinelli, Daniela Galimberti, Efthimios Dardiotis, Lisa F. Barcellos, Brendan T. Keenan, Maja Jagodic, Ferdinando Clarelli, Bénédicte Dubois, Nicholas A. Kennedy, Lohith Madireddy, Grant W. Montgomery, Tommy Olsson, Phil De Jager, Lo A, Peter A. Calabresi, Brandes A, Chris Cotsapas, Bakker Pd, Steffan D. Bos, Christina M. Lill, Karban A, Thoerner Lw, Tojo James, Wong G, Harald Peeters, M.-M. Hoshi, Roberts R, Fredrik Piehl, Lars Alfredsson, Giorgos M. Hadjigeorgiou, Bertrand Fontaine, Melissa Sorosina, Benedetti M, Maria Ban, Jorge R. Oksenberg, Howard L. Weiner, Ingrid Kockum, Mireia Sospedra, Taylor Km, Henrik Ullum, Izaura Lima Bomfim, Stronati L, Molyneux P, Replogle J, Stacy J. Caillier, Zhang H, Till F. M. Andlauer, Margaret A. Pericak-Vance, Jan Hillert, Luisa Bernardinelli, Taibo Li, Helle Bach Søndergaard, Ilijas Jelcic, Nikolaos A. Patsopoulos, Silvia Delgado, Cathy Schaefer, Thomas Korn, Laura Piccio, Mark Mühlau, Deborah D. Proctor, B. Hemmer, Elizabeth M. Bradshaw, Hysi P, Megan C Neville, Mary F. Davis, Dorlan J. Kimbrough, Jyoti Khadake, Jean-Pierre Hugot, David Gomez-Cabrero, Murray L. Barclay, Anne H. Cross, Kasper Lage, Stephen L. Hauser, A Compston, Zimmer A, Ivinson A, Anne Spurkland, Jonas Halfvarson, Charles C. White, Biberacher, Zarzycki O, Kathryn C. Fitzgerald, Finn Sellebjerg, Ellis Patrick, Andrea Zauli, Bruce V. Taylor, Maurizio Leone, Genevieve Lachance, Marta Olah, B. Cree, Manuel Comabella, Arie Levine, Domizia Vecchio, Mathias Chamaillard, Mark Lathrop, Clara Guaschino, Roland Martin, Hanigan K, Pierre-Antoine F. D. Gourraud, Maria Cimpean, Jonathan L. Haines, Dorothea Buck, Marco Salvetti, Per Soelberg Sørensen, Noel Lg, Mitja Mitrovic, Graeme J. Stewart, Benjamin Knier, Ellen Lathi, Cottone M, Laura Ferrè, Winn P, Duijn Cv, Monica Milla, Tune H. Pers, I. Oikonomou, An D, David R. Booth, Rebeix Ic, Clara P. Manrique, Massey D, Evelyn Ng Sm, Törkvist L, Daniele Cusi, Shoostari P, Vatn Mh, Paola Cavalla, Silvia Santoro, Gossum Av, Seema Kalra, Paul Rutgeerts, Clive Hawkins, Sandra Vukusik, Khan Ma, Hakon Hakonarson, Paul Henderson, Christiane Graetz, Julia Y Mescheriakova, Jean-François Rahier, Panteliadis I, Cristina Agliardi, Grummel, Jacob L. McCauley, Amie Baker, Janna Saarela, Sergio E. Baranzini, J W Thorpe, and Damotte

Subjects
0303 health sciences, Microglia, Multiple sclerosis, Central nervous system, Biology, medicine.disease, Major histocompatibility complex, 03 medical and health sciences, 0302 clinical medicine, Immune system, medicine.anatomical_structure, Autoimmune Process, Immunology, medicine, biology.protein, Gene, 030217 neurology & neurosurgery, X chromosome, 030304 developmental biology
Abstract

We assembled and analyzed genetic data of 47,351 multiple sclerosis (MS) subjects and 68,284 control subjects and establish a reference map of the genetic architecture of MS that includes 200 autosomal susceptibility variants outside the major histocompatibility complex (MHC), one chromosome X variant, and 32 independent associations within the extended MHC. We used an ensemble of methods to prioritize up to 551 potentially associated MS susceptibility genes, that implicate multiple innate and adaptive pathways distributed across the cellular components of the immune system. Using expression profiles from purified human microglia, we do find enrichment for MS genes in these brain - resident immune cells. Thus, while MS is most likely initially triggered by perturbation of peripheral immune responses the functional responses of microglia and other brain cells are also altered and may have a role in targeting an autoimmune process to the central nervous system.One Sentence Summary:We report a detailed genetic and genomic map of multiple sclerosis, and describe the role of putatively affected genes in the peripheral immune system and brain resident microglia.

Published
2017

9. Polarization of the Effects of Autoimmune and Neurodegenerative Risk Alleles in Leukocytes

Author

Massachusetts Institute of Technology. Department of Biology, Regev, Aviv, Raj, T., Rothamel, K., Mostafavi, S., Ye, C., Lee, M. N., Replogle, J. M., Feng, T., Lee, M., Asinovski, N., Frohlich, I., Imboywa, S., Von Korff, A., Okada, Y., Patsopoulos, N. A., Davis, S., McCabe, C., Paik, H.-i., Srivastava, G. P., Raychaudhuri, S., Hafler, D. A., Koller, D., Hacohen, N., Mathis, D., Benoist, C., Stranger, B. E., De Jager, P. L., Massachusetts Institute of Technology. Department of Biology, Regev, Aviv, Raj, T., Rothamel, K., Mostafavi, S., Ye, C., Lee, M. N., Replogle, J. M., Feng, T., Lee, M., Asinovski, N., Frohlich, I., Imboywa, S., Von Korff, A., Okada, Y., Patsopoulos, N. A., Davis, S., McCabe, C., Paik, H.-i., Srivastava, G. P., Raychaudhuri, S., Hafler, D. A., Koller, D., Hacohen, N., Mathis, D., Benoist, C., Stranger, B. E., and De Jager, P. L.

Abstract

To extend our understanding of the genetic basis of human immune function and dysfunction, we performed an expression quantitative trait locus (eQTL) study of purified CD4[superscript +] T cells and monocytes, representing adaptive and innate immunity, in a multi-ethnic cohort of 461 healthy individuals. Context-specific cis- and trans-eQTLs were identified, and cross-population mapping allowed, in some cases, putative functional assignment of candidate causal regulatory variants for disease-associated loci. We note an over-representation of T cell–specific eQTLs among susceptibility alleles for autoimmune diseases and of monocyte-specific eQTLs among Alzheimer’s and Parkinson’s disease variants. This polarization implicates specific immune cell types in these diseases and points to the need to identify the cell-autonomous effects of disease susceptibility variants.

Published
2017

10. The 2nd Level Trigger System of the HADES Detector

Author

Traxler, M., Becker, R., Frohlich, I., Kuhn, W., Lehnert, J., Lichtblau, C., Lins, E., Petri, M., Pleier, M.-A., and Ritman, J.

Subjects
Nuclear research -- Equipment and supplies, Nuclear engineering -- Equipment and supplies, Trigger circuits -- Evaluation, Programmable logic devices -- Evaluation, Business, Electronics, Electronics and electrical industries
Abstract

The multi-level trigger system of the HADES detector is intended to select dilepton events in heavy ion reactions and to reduce minimum bias event rates by a factor of 10000. After a first level trigger based on the charged particle multiplicity the second level is the essential dilepton trigger which identifies electron signatures in several detector components and correlates them to dileptons. The third level trigger verifies these dilepton candidates using additional tracking information. Programmable logic devices, FPGAs and CPLDs, as well as DSPs are widely used to gain flexibility and provide common solutions. The trigger concept and fully functional versions of the readout boards and the second level trigger are presented.

Published
2000

11. Intersection of population variation and autoimmunity genetics in human T cell activation

Author

Massachusetts Institute of Technology. Department of Biology, Regev, Aviv, Ye, C. J., Feng, T., Kwon, H.-K., Raj, T., Wilson, M. T., Asinovski, N., McCabe, C., Lee, M. H., Frohlich, I., Paik, H.-i., Zaitlen, N., Hacohen, N., Stranger, B., De Jager, P., Mathis, D., Benoist, C., Massachusetts Institute of Technology. Department of Biology, Regev, Aviv, Ye, C. J., Feng, T., Kwon, H.-K., Raj, T., Wilson, M. T., Asinovski, N., McCabe, C., Lee, M. H., Frohlich, I., Paik, H.-i., Zaitlen, N., Hacohen, N., Stranger, B., De Jager, P., Mathis, D., and Benoist, C.

Abstract

T lymphocyte activation by antigen conditions adaptive immune responses and immunopathologies, but we know little about its variation in humans and its genetic or environmental roots. We analyzed gene expression in CD4[superscript +] T cells during unbiased activation or in T helper 17 (T[subscript H]17) conditions from 348 healthy participants representing European, Asian, and African ancestries. We observed interindividual variability, most marked for cytokine transcripts, with clear biases on the basis of ancestry, and following patterns more complex than simple T[subscript H]1/2/17 partitions. We identified 39 genetic loci specifically associated in cis with activated gene expression. We further fine-mapped and validated a single-base variant that modulates YY1 binding and the activity of an enhancer element controlling the autoimmune-associated IL2RA gene, affecting its activity in activated but not regulatory T cells. Thus, interindividual variability affects the fundamental immunologic process of T helper activation, with important connections to autoimmune disease.

Published
2016

12. Lambda hyperon production and polarization in collisions of p(3.5 GeV) + Nb

Author

Agakishiev, G., Arnold, O., Bałanda, A., Belver, D., Belyaev, A. V., Berger-Chen, J. C., Blanco, A., Böhmer, M., Boyard, J. L., Cabanelas, Pablo, Chernenko, S., Dybczak, A., Epple, E., Fabbietti, L., Fateev, O. V., Finocchiaro, P., Fonte, P., Friese, J., Fr̈ohlich, I., Galatyuk, T., Garzón, J. A., Gernḧauser, R., G̈obel, K., Golubeva, M., Gonźalez-Dí, D., Guber, F., Gumberidze, M., Heinz, T., Hennino, T., Holzmann, R., Ierusalimov, A., Iori, I., Ivashkin, A., Jurkovic, M., K̈ampfer, B., Karavicheva, T., Koenig, I., Koenig, W., Kolb, B. W., Kornakov, G., Kotte, R., Krása, Antonín, Krizek, F., Kr̈ucken, R., Kuc, H., K̈uhn, W., Kugler, A., Kurepin, A., Ladygin, V., Lalik, R., Lang, S., Lapidus, K., Lebedev, A., Liu, T., Lopes, L., Lorenz, M., Maier, L., Mangiarotti, A., Markert, J., Metag, V., Michalska, B., Michel, J., M̈untz, C., Naumann, L., Pachmayer, Y. C., Palka, M., Parpottas, Yiannis, Pechenov, V., Pechenova, O., Pietraszko, J., Przygoda, W., Ramstein, B., Reshetin, A., Rustamov, A., Sadovsky, A., Salabura, P., Schmah, A., Schwab, E., Siebenson, J., Sobolev, Y. G., Spataro, S., Spruck, B., Str̈obele, H., Stroth, J., Sturm, C., Tarantola, A., Teilab, K., Tlusty, P., Traxler, M., Trebacz, R., Tsertos, Haralambos, Vasiliev, T., Wagner, V., Weber, M., Wendisch, C., Ẅustenfeld, J., Yurevich, S., Zanevsky, Y. V., 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), and Tsertos, Haralambos [0000-0001-5966-343X]

Subjects
Nuclear and High Energy Physics, SUBTHRESHOLD KAON PRODUCTION, FOS: Physical sciences, Inverse, HEAVY-ION COLLISIONS, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Lambda, 01 natural sciences, Nuclear physics, symbols.namesake, NUCLEUS-NUCLEUS COLLISIONS, FINAL-STATE INTERACTIONS, INCLUSIVE PRODUCTION, 0103 physical sciences, Rapidity, Nuclear Experiment (nucl-ex), 010306 general physics, Nuclear Experiment, Physics, 010308 nuclear & particles physics, Hyperon, Polarization (waves), Phase space, Boltzmann constant, symbols, Transverse mass
Abstract

Results on $\Lambda$ hyperon production 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. The transverse mass distributions in rapidity bins are well described by Boltzmann shapes with a maximum inverse slope parameter of about $90\,$MeV at a rapidity of $y=1.0$, i.e. slightly below the center-of-mass rapidity for nucleon-nucleon collisions, $y_{cm}=1.12$. The rapidity density decreases monotonically with increasing rapidity within a rapidity window ranging from 0.3 to 1.3. The $\Lambda$ phase-space distribution is compared with results of other experiments and with predictions of two transport approaches which are available publicly. None of the present versions of the employed models is able to fully reproduce the experimental distributions, i.e. in absolute yield and in shape. Presumably, this finding results from an insufficient modelling in the transport models of the elementary processes being relevant for $\Lambda$ production, rescattering and absorption. The present high-statistics data allow for a genuine two-dimensional investigation as a function of phase space of the self-analyzing $\Lambda$ polarization in the weak decay $\Lambda\rightarrow p \pi^-$. Finite negative values of the polarization in the order of $5-20\,\%$ are observed over the entire phase space studied. The absolute value of the polarization increases almost linearly with increasing transverse momentum for $p_t>300\,$MeV/c and increases with decreasing rapidity for $y < 0.8$., Comment: accepted by Eur. Phys. J. A

Published
2014
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13. DISTO data on K(-)pp

Author

Maggiora, Marco, Kienle, P., Suzuki, K., Yamazaki, T., Alexeev, M., Amoroso, Antonio, Balestra, Ferruccio, Bedfer, Y., Bertini, R., Bland, L. C., Brenschede, A., Brochard, F., Bussa, Maria Pia, Choi, S., Colantoni, M. L., Dressler, R., Dzemidzic, M., Faivre, J. C., Ferrero, L., Foryciarz, J., Frohlich, I., Frolov, V., Garfagnini, R., Grasso, Antonino, Heinz, S., Jacobs, W. W., Kuhn, W., Maggiora, A., Panzieri, D., Sosio, Stefano, Pfafl, H. W., Pontecorvo, G., Popov, A., Ritman, J., Salabura, P., Tchalyshev, V., and Vigdor, S. E.

Published
2010

14. Indication of a Deeply Bound and Compact K- pp State Formed in the pp -> p Lambda K+ Reaction at 2.85 GeV

Author

Yamazaki, T, Maggiora, Marco, Kienle, P, Suzuki, K, Amoroso, Antonio, Alexeev, M, Balestra, Ferruccio, Bedfer, Y, Bertini, Raimondo Pietro, Bland, Lc, Brenschede, A, Brochard, F, Bussa, Maria Pia, Choi, S, Colantoni, Ml, Dressler, R, Dzemidzic, M, Faivre, Jc, Ferrero, Livio, Foryciarz, J, Frohlich, I, Frolov, Vladimir, Garfagnini, R, Grasso, Antonino, Heinz, S, Jacobs, Ww, Kuhn, W, Maggiora, A, Panzieri, Daniele, Pfaff, Hw, Pontecorvo, G, Popov, A, Ritman, J, Salabura, P, Sosio, Stefano, Tchalyshev, V, and Vigdor, Se

Subjects
SYSTEMS, NUCLEAR CLUSTERS
Published
2010

15. A demonstrator for the Micro-Vertex-Detector of the CBM experiment

Author

Schrader, C., Amar-Youcef, S., Bialas, N., Michael Deveaux, Frohlich, I., Muntz, C., Seddiki, S., Tischler, T., and Stroth, J.

Subjects
Physics::Instrumentation and Detectors, ddc:530
Abstract

CMOS sensors are the most promising candidates for the Micro-Vertex-Detector (MVD) of the CBM experiment at GSI, as they provide an unprecedented compromise between spatial resolution, low material budget, adequate radiation tolerance and readout speed. To study the integration of these sensors into a detector module, a so-called MVD-demonstrator has been developed. The demonstrator and its in-beam performance will be presented and discussed in this work.

Published
2010

16. The HADES Collaboration

Author

Bałanda, A., Belver, D., Belyaev, A. V., Blanco, A., Böhmer, M., Boyard, J. L., Braun-Munzinger, P., Cabanelas, Pablo, Castro, E., Chernenko, S., Diáz, J., Dybczak, A., Epple, E., Fabbietti, L., Fateev, O. V., Finocchiaro, P., Fonte, P., Friese, J., Frohlich, I., Galatyuk, T., Garzon, J. A., Gernhauser, R., Gil, A., Golubeva, M., González-Díaz, D., Guber, F., Hennino, T., Holzmann, R., Huck, P., Ierusalimov, A. P., Iori, I., Ivashkin, A., Jurkovic, M., Kampfer, B., Karavicheva, T., Koenig, I., Koenig, W., Kolb, B. W., Kopp, A., Kotte, R., Kozuch, A., Krása, Antonín, Krizek, F., Krucken, R., Kuhn, W., Kugler, A., Kurepin, A., Kahlitz, P. K., Lamas-Valverde, J., Lang, S., Lange, J. S., Lapidus, K., Liu, T., Lopes, L., Lorenz, M., Maier, L., Mangiarotti, A., Markert, J., Metag, V., Michalska, B., Michel, J., Morinière, E., Mousa, J., Muntz, C., Naumann, L., Pachmayer, Y. C., Palka, M., Parpottas, Yiannis, Pechenov, V., Pietraszko, J., Przygoda, W., Ramstein, B., Reshetin, A., Roskoss, J., Rustamov, A., Sadovsky, A., Salabura, P., Schmah, A., Siebenson, J., Simon, R., Sobolev, Y. G., Spruck, B., Ströbele, H., Stroth, J., Sturm, C., Sudol, M., Tarantola, A., Teilab, K., Tlusty, P., Traxler, M., Trebacz, R., Tsertos, Haralambos, Veretenkin, I., Wagner, V., Weber, M., Wisniowski, M., Wiistenfeld, J., Yurevich, S., Zanevsky, Y. V., and Tsertos, Haralambos [0000-0001-5966-343X]

Subjects
Physics, Nuclear and High Energy Physics, Humanities
Abstract

The HADES Collaboration G. Agakishiev, C. Agodi, A. Balanda, G. Bellia, D. Belver, A. Belyaev, J. Bielcik, A. Blanco, A. Bortolotti, J.L. Boyard, P. Braun-Munzinger, P. Cabanelas, S. Chernenko, T. Christ, R. Coniglione, M. Destefanis, J. Diaz, F. Dohrmann, I. Duran, A. Dybczak, T. Eberl, L. Fabbietti, O. Fateev, R. Ferreira-Marques, P. Finocchiaro, P. Fonte, J. Friese, I. Frohlich, T. Galatyuk, J.A. Garzon, R. Gernhauser, A. Gil, C. Gilardi, M. Golubeva, D. Gonzalez-Diaz, E. Grosse, F. Guber, M. Heilmann, T. Heinz, T. Hennino, R. Holzmann, A. Ierusalimov, I. Iori, A. Ivashkin, M. Jurkovic, B. Kampfer, K. Kanaki, T. Karavicheva, D. Kirschner, I. Koenig, W. Koenig, B.W. Kolb, R. Kotte, A. Kozuch, A. Krasa, F. Křižek, R. Krucken, W. Kuhn, A. Kugler, A. Kurepin, J. Lamas-Valverde, S. Lang, J.S. Lange, K. Lapidus, L. Lopes, M. Lorenz, L. Maier, C. Maiolino, A. Mangiarotti, J. Maŕin, J. Markert, V. Metag, B. Michalska, J. Michel, E. Moriniere, J. Mousa , M. Munch, C. Muntz, L. Naumann, R. Novotny, J. Otwinowski, Y.C. Pachmayer, M. Palka, Y. Parpottas, V. Pechenov, O. Pechenova, T. Perez Cavalcanti, P. Piattelli, J. Pietraszko, V. Posṕisil, W. Przygoda, B. Ramstein, A. Reshetin, M. Roy-Stephan, A. Rustamov, A. Sadovsky, B. Sailer, P. Salabura, P. Sapienza, A. Schmah, C. Schroeder, E. Schwab, R.S. Simon, Yu.G. Sobolev, S. Spataro, B. Spruck, H. Strobele, J. Stroth, C. Sturm, M. Sudol, A. Tarantola, K. Teilab, P. Tlustý, M. Traxler, R. Trebacz, H. Tsertos, V. Wagner, M. Weber, M. Wisniowski, T. Wojcik, J. Wustenfeld, S. Yurevich, Y. Zanevsky, P. Zhou, and P. Zumbruch 1 Istituto Nazionale di Fisica Nucleare Laboratori Nazionali del Sud, 95125 Catania, Italy 2 LIP-Laboratorio de Instrumentacao e Fisica Experimental de Particulas, 3004-516 Coimbra, Portugal 3 Smoluchowski Institute of Physics, Jagiellonian University of Cracow, 30-059 Krakow, Poland 4 GSI Helmholtzzentrum fur Schwerionenforschung, 64291 Darmstadt, Germany 5 Institut fur Strahlenphysik, Forschungszentrum Dresden-Rossendorf, 01314 Dresden, Germany 6 Joint Institute of Nuclear Research, 141980 Dubna, Russia 7 Institut fur Kernphysik, Johann Wolfgang Goethe-Universitat, 60438 Frankfurt, Germany 8 II. Physikalisches Institut, Justus Liebig Universitat Giessen, 35392 Giessen, Germany 9 Istituto Nazionale di Fisica Nucleare, Sezione di Milano, 20133 Milano, Italy 10 Institute for Nuclear Research, Russian Academy of Science, 117312 Moscow, Russia 11 Physik Department E12, Technische Universitat Munchen, 85748 Munchen, Germany 12 Department of Physics, University of Cyprus, 1678 Nicosia, Cyprus 13 Institut de Physique Nucleaire (UMR 8608), CNRS/IN2P3 Universite Paris Sud, F-91406 Orsay Cedex, France 14 Nuclear Physics Institute, Academy of Sciences of Czech Republic, 25068 Rez, Czech Republic 15 Departamento de Fisica de Particulas, University of Santiago de Compostela, 15782 Santiago de Compostela, Spain 16 Instituto de Fisica Corpuscular, Universidad de Valencia-CSIC, 46971 Valencia, Spain

Published
2009

17. Dielectron production in C-12+C-12 collisions at 2-AGeV with HADES

Author

Agakichiev, B., Agodi, C., Braun-Munzinger, P., Schon, W., Schroder, C., Schwab, E., Simon, R. S., Smolyankin, V., Smykov, L., Spataro, S., Spruck, B., Strobele, H., Stroth, J., Cabanelas, P., Sturm, C., Sudol, M., Suk, M., Taranenko, A., Tlusty, P., Toia, A., Traxler, M., Tsertos, H., Vassiliev, D., Vazquez, A., Chernenko, S., Wagner, V., Walus, W., Wisniowski, W., Wojcik, T., Wustenfeld, J., Zanevsky, Y., Zeitelhack, K., Zovinec, D., Zumbruch, P., Christ, T., Coniglione, R., Cosentino, L., Diaz, J., Dohrmann, F., Duran, I., Eberl, T., Alvarez-Pol, H., Enghardt, W., Fabbietti, L., Fateev, O., Fernandez, C., Finocchiaro, P., Friese, J., Frohlich, I., Fuentes, B., Garabatos, C., Garzon, J. A., Balanda, A., Gernhauser, R., Golubeva, M., Gonzalez-Diaz, D., Grosse, E., Guber, F., Hennino, T., Hlavac, S., Holzmann, R., Homolka, J., Ierusalimov, A., Bertini, D., Iori, I., Ivashkin, A., Jaskula, M., Jurkovic, M., Kagarlis, M., Kajetanowicz, M., Kampfer, B., Kanaki, K., Karavicheva, T., Kastenmuller, A., Bielcik, J., Kidon, L., Kienle, P., Koenig, I., Koenig, W., Korner, H. J., Kolb, B. W., Kotte, R., Krucken, R., Kugler, A., Kuhn, W., Bellia, G., Kulessa, R., Kurepin, A., Lang, S., Lange, S., Lehnert, J., Lins, E., Magestro, D., Maiolino, C., Malarz, A., Markert, J., Bohmer, M., Metag, V., Mousa, J., Munch, M., Muntz, C., Naumann, L., Nekhaev, A., Novotny, J., Otwinowski, J., Pachmayer, Y.C., Pechenov, V., Bokemeyer, H., Perez, T., Piattelli, P., Pietraszko, J., Pleskac, R., Ploskon, M., Pospisil, V., Prokopowicz, W., Przygoda, W., Ramstein, B., Reshetin, A., Boyard, J. L., Ritman, J., Roy-Stephan, M., Rustamov, A., Sadovsky, A., Sailer, B., Salabura, P., Sanchez, M., Sapienza, P., Schmah, A., and Schon, H.

Subjects
experimental results [magnetic spectrometer], carbon, Nuclear Theory, decay [pseudoscalar meson], 1-2 GeV/nucleon, FOS: Physical sciences, decay [vector meson], relativistic [quantum molecular dynamics], heavy ion [scattering], production [model], ddc:550, High Energy Physics::Experiment, (positron electron) [mass spectrum], pair production [electron], Nuclear Experiment (nucl-ex), Nuclear Experiment, spectral representation, Darmstadt SIS
Abstract

The invariant-mass spectrum of $e^+ e^-$ pairs produced in $^{12}$C+$^{12}$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 five orders of magnitude from the $\pi^0$-Dalitz to the $\rho/\omega$ invariant-mass region. Dalitz decays of $\pi^0$ and $\eta$ account for all the yield up to 0.15 GeV/c$^2$, 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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19. Charged hadrons and leptons identification at HADES

Author

Kugler, A., Agakishiev, H., Agodi, C., Alvarez-Pol, H., Balanda, A., Bellia, G., Bielcik, J., Bohmer, J., Braun-Munzinger, P., Chernenko, S., Christ, T., Coniglione, R., Djeridi, R., Dohrmann, F., Duran, I., Eberl, T., Fabbietti, L., Fateev, O., Finocchiaro, P., Friese, J., Frohlich, I., Garzon, J., Gernhauser, R., Golubeva, M., Gonzales-Dias, D., Grosse, E., Guber, F., Hennino, T., Hlavac, S., Holzmann, R., Ierusalimov, A., Iori, I., Jaskula, M., Jurkovic, M., Kampfer, B., Kanaki, K., Koenig, I., Koenig, W., Kolb, B., Kotte, R., Kotulic-Bunta, J., Krucken, R., Kuhn, W., Kulessa, R., Kurepin, A., Lang, S., Lehnert, J., Maiolino, C., Markert, J., Metag, V., Mousa, J., Munch, M., Muntz, C., Naumann, L., Novotny, R., Novotny, J., Otwinowski, J., Pachmayer, Y., Pechenov, V., Perez, T., Pietraszko, J., Pleskac, R., Pospisil, V., Przygoda, W., Rabin, N., Ramstein, B., Reshetin, A., Ritman, J., Roy-Stephan, M., Rustamov, A., Sadovski, A., Sailer, B., Salabura, P., Sanchez, M., Sapienza, P., Schmah, A., Simon, R., Smoliankin, V., Smykov, L., Spataro, S., Spruck, B., Strobele, H., Stroth, J., Sturm, C., Tlusty, P., Toia, A., Traxler, M., Tsertos, H., Wagner, V., Wisniowski, M., Wojcik, T., Wustenfeld, J., Zanevsky, Y., Zovinec, D., and Zumbruch, P.

Subjects
Physics::Instrumentation and Detectors, High Energy Physics::Phenomenology, Nuclear Theory, High Energy Physics::Experiment, Nuclear Experiment
Abstract

The HADES spectrometer installed at GSI Darmstadt is devoted to the study of the production of di-lepton pairs from vector meson decays in relativistic nucleus-nucleus collisions, as well as proton- and pion-induced reactions. Extraction of rare lepton pairs in high hadron multiplicity events requires an efficient particle identification (PID). In HADES charged particles momentum is measured by a tracking system surrounding the toroidal super conducting magnet, and velocity and energy loss is provided by a TOF detector. Leptons are identified by a Rich as well as a Shower detector. The particle identification method is using full experimental information from all subdetectors. To demonstrate the method performance, single particle spectra of charged hadrons and leptons from C+C at 2 AGeV will be presented and compared with results of corresponding simulations. The proton and pion yields an m_T and rapidity distributions will be compared with existing data. Very preliminary results of lepton analysis will be shown as well.

Published
2004

20. Exclusive eta production in pp reactions

Author

Frohlich, I, Balestra, Ferruccio, Bedfer, Y, Bertini, Raimondo Pietro, Bland, Lc, Brenschede, A, Brochard, F, Bussa, Maria Pia, Choi, S, Colantoni, M. L., Dressler, R, Dzemidzic, M, Faivre, Jc, Ferrero, Andrea, Ferrero, Livio, Foryciarz, J, Frolov, Vladimir, Garfagnini, Raffaello, Grasso, Antonino, Heinz, S, Jacobs, Ww, Kuhn, W, Maggiora, A, Maggiora, Marco, Manara, A., Panzieri, Daniele, Pfaff, Hw, Piragino, Guido, Popov, A, Ritman, J, Salabura, P, Tchalyshev, V, Tosello, F, and Vigdor, Se

Subjects
NUCLEON-NUCLEON COLLISIONS, PROTON-PROTON COLLISIONS, MESON PRODUCTION, PP-ETA+REACTION%22">PP->PP-ETA REACTION, OF-FLIGHT SPECTROMETER, NEAR-THRESHOLD
Published
2003

21. <font face='symbol'>r</font>0meson production in the pp->pp<font face=symbol>p</font>+<font face=symbol></font>p-reaction at 3.67 GeV/c

Author

Balestra, F., Bedfer, Y., Bertini, R., Bland, L. C., Brenschede, A., Brochard, F., Bussa, M. P., Seon-Ho, C., Colantoni, M. L., Dressler, R., Dzemidzic, M., Faivre, J. C., Ferrero, A., Ferrero, L., Foryciarz, J., Frohlich, I., Frolov, V., Garfagnini, R., Grasso, A., Heinz, S., Jacobs, W. W., Kuhn, W., Maggiora, A., Maggiora, M., Manara, A., Panzieri, D., Pfaff, H. W., Piragino, G., Popov, A., Ritman, J., Salabura, P., Tchalyshev, V., Tosello, F., Vigdor, S. E., and Zosi, G.

Abstract

kein Abstract

Published
2002

22. Meson production in p p reactions at 2.85-GeV

Author

Grasso, Antonino, Kuhn, W., Baginyan, S. A., Balestra, Ferruccio, Bedfer, Y., Bertini, Raimondo Pietro, Bland, L. C., Bonushkina, A. Y., Brochard, F., Bussa, Maria Pia, Chalyshev, V., Choi, S., Debowski, M., Dressler, R., Dzemidzic, M., Faivre, J. C., Falomkin, I. V., Fava, Luciano, Ferrero, Livio, Foryciarz, J., Frolov, Vladimir, Frohlich, I., Garfagnini, Raffaello, Heinz, S., Ivanov, V. V., Jacobs, W. W., Maggiora, A., Maggiora, Marco, Manara, A., Panzieri, Daniele, Pfaff, H. W., Piragino, Guido, Pontecorvo, G. B., Popov, A., Ritman, J., Rozhdestvensky, A. M., Salabura, P., Tosello, F., Vigdor, S. E., and Zosi, Gianfranco

Published
2001

23. New results from DISTO for spin observables in exclusive hyperon production

Author

Maggiora, Marco, Balestra, Ferruccio, Bedfer, Y, Bertini, Raimondo Pietro, Bland, Lc, Brenschede, A, Brochard, F, Bussa, Maria Pia, Choi, S, Debowski, M, Dressler, R, Dzemidzic, M, Faivre, Jc, Falomkin, Iv, Fava, Luciano, Ferrero, Livio, Foryciarz, J, Frohlich, I, Frolov, Vladimir, Garfagnini, R, Grasso, Antonino, Grosse, E, Heinz, S, Ivanov, Vv, Jacobs, Ww, Kuhn, W, Maggiora, A, Manara, A, Panzieri, D, Pfaff, Hw, Piragino, Guido, Pontecorvo, Gb, Popov, A, Ritman, J, Salabura, P, Tchalyshev, V, Tosello, F, Vigdor, Se, and Zosi, Gianfranco

Subjects
strangeness, Yperon production, polarisation transfer, analysing power, spin observables, lambda, exclusive
Published
2001

24. phi and omega meson production in p p reactions at p(lab) = 3.67-GeV/c

Author

Grasso, Antonino, Balestra, Ferruccio, Bedfer, Y, Bertini, Raimondo Pietro, Bland, Lc, Brenschede, A, Brochard, F, Bussa, Maria Pia, Choi, Sh, Debowski, M, Dressler, R, Dzemidzic, M, Faivre, Jc, Falomkin, Iv, Fava, Luciano, Ferrero, Livio, Foryciarz, J, Frohlich, I, Frolov, Vladimir, Garfagnini, Raffaello, Grosse, E, Heinz, S, Ivanov, Vv, Jacobs, Ww, Kuhn, W, Maggiora, A, Maggiora, Marco, Manara, A., Panzieri, Daniele, Pfaff, Hw, Piragino, Guido, Pontecorvo, Gb, Popov, A, Ritman, J, Salabura, P, Tchalyshev, V, Tosello, F, Vigdor, Se, and Zosi, Gianfranco

Published
2001

25. Production of eta-prime mesons in the p p ---> p p eta-prime reaction at 3.67-GeV/c

Author

Grasso, Antonino, Balestra, Ferruccio, Bedfer, Y, Bertini, Raimondo Pietro, Bland, Lc, Brenschede, A, Brochard, F, Bussa, Maria Pia, Choi, S, Debowski, M, Dzemidzic, M, Faivre, Jc, Falomkin, Iv, Fava, Luciano, Ferrero, Livio, Foryciarz, J, Frohlich, I, Frolov, Vladimir, Garfagnini, Raffaello, Heinz, S, Ivanov, Vv, Jacobs, Ww, Kuhn, W, Maggiora, A, Maggiora, Marco, Manara, A., Panzieri, Daniele, Pfaff, Hw, Piragino, Guido, Pontecorvo, Gb, Popov, A, Ritman, J, Salabura, P, Tchalyshev, V, Tosello, F, Vigdor, Se, and Zosi, Gianfranco

Subjects
COLLISIONS NEAR-THRESHOLD, SPIN, TOTAL CROSS-SECTION, PROTON-SCATTERING, U(1), DECAYS
Published
2000

26. Production of eta' and K- mesons in p p reactions at 2.85-GeV

Author

Grasso, Antonino, Kuhn, W., Balestra, Ferruccio, Bedfer, Y, Bertini, Raimondo Pietro, Bland, Lc, Brochard, F, Bussa, Maria Pia, Chalyshev, V, Choi, S, Debowski, M, Dzemidzic, M, Faivre, Jc, Falomkin, Iv, Fava, Luciano, Ferrero, Livio, Foryciarz, J, Frolov, Vladimir, Frohlich, I, Garfagnini, Raffaello, Gill, N, Heinz, S, Ivanov, Vv, Jacobs, Ww, Maggiora, A, Maggiora, Marco, Manara, A., Panzieri, Daniele, Pfaff, Hw, Piragino, Guido, Pontecorvo, Gb, Popov, A, Ritman, J, Salabura, P, Tosello, F, Vigdor, Se, and Zosi, Gianfranco

Subjects
REACTIONS NEAR-THRESHOLD, ENERGIES, PROTON-PROTON, TOTAL CROSS-SECTION, NUCLEUS COLLISIONS, PHI, ANNIHILATION, MATTER
Published
2000

28. r0meson production in the pp->pp<font face=symbol>p+<font face=symbol>p-reaction at 3.67 GeV/c

Author

Balestra, F., Bedfer, Y., Bertini, R., Bland, L. C., Brenschede, A., Brochard, F., Bussa, M. P., Seon-Ho, C., Colantoni, M. L., Dressler, R., Dzemidzic, M., Faivre, J. C., Ferrero, A., Ferrero, L., Foryciarz, J., Frohlich, I., Frolov, V., Garfagnini, R., Grasso, A., Heinz, S., Jacobs, W. W., Kuhn, W., Maggiora, A., Maggiora, M., Manara, A., Panzieri, D., Pfaff, H. W., Piragino, G., Popov, A., Ritman, J., Salabura, P., Tchalyshev, V., Tosello, F., Vigdor, S. E., Zosi, G., Balestra, F., Bedfer, Y., Bertini, R., Bland, L. C., Brenschede, A., Brochard, F., Bussa, M. P., Seon-Ho, C., Colantoni, M. L., Dressler, R., Dzemidzic, M., Faivre, J. C., Ferrero, A., Ferrero, L., Foryciarz, J., Frohlich, I., Frolov, V., Garfagnini, R., Grasso, A., Heinz, S., Jacobs, W. W., Kuhn, W., Maggiora, A., Maggiora, M., Manara, A., Panzieri, D., Pfaff, H. W., Piragino, G., Popov, A., Ritman, J., Salabura, P., Tchalyshev, V., Tosello, F., Vigdor, S. E., and Zosi, G.

Published
2002

30. The new data acquisition system for the HADES experiment

Author

Palka, M., primary, Bohmer, M., additional, Frohlich, I., additional, Kajetanowicz, M., additional, Michel, J., additional, Salabura, P., additional, Skott, P., additional, Stroth, J., additional, Strobele, H., additional, Tarantola, A., additional, Traxler, M., additional, Trebacz, R., additional, Usenko, E., additional, and Yurevich, S., additional

Published
2008
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32. A General Purpose Trigger and Readout Board for HADES and FAIR-Experiments

Author

Frohlich, I., primary, Kajetanowicz, M., additional, Korcyl, K., additional, Krzemien, W., additional, Palka, M., additional, Salabura, P., additional, Schrader, C., additional, Skott, P., additional, Strobele, H., additional, Stroth, J., additional, Tarantola, A., additional, Traxler, M., additional, and Trebacz, R., additional

Published
2007
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34. New results on light nuclei, hyperons and hypernuclei from HADES (HADES collaboration)

Author

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

Subjects
Physics, QC1-999
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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37. Exploring time like tranistions in pp, πp and AA reactions with HADES

Author

Salabura Piotr, Adamczewski-Musch J., Arnoldi-Meadows B., Belounnas A., Belyaev A., Blanco A., Blume C., Böhmer M., Borisenko S, Chlad L., Chudoba P, Ciepał I., Dittert D., Dreyer J., Esmail W., Dürr M., Fabbietti L., Fateev S., Fonte P., Friese J., Fröhlich I., Förtsch J., Galatyuk T., Gernhäuser R., Golosov O., Golubeva M., Greifenhagen R., Guber F., Gumberidze M., Harabasz S., Hensch R., Höhne C., Holzmann R., Huck H., Ierusalimov A., Ivashkin A., Kämpfer B., Kampert K-H., Kardan B., Koenig I., Koenig W., Kornakov G., Kornas F., Kotte R., Kozela A., Kres I., Kuboś J., Kugler A., Kulesa P., Ladygin V., Lalik R., Lebedev A., Lebedev S., Linev S., Lopes L., Lorenz M., Lykasov G., Mahmoud T., Malige A., Markert J., Matulewicz T., Maurus S., Metag V., Michel J., Morozov S., Müntz C., Naumann L., Nowakowski K., Otto J.-H., Patel V., Pauly C., Pechenov V., Pechenova O., Petukhov O., Pfeifer D., Piasecki K., Pietraszko J., Prozorov A., Przygoda W., Pysz K., Ramstein B., Rathod N., Reshetin A., Ritman L., Rodriguez-Ramos P., Rost A., Salabura P., Scozzi F., Seck F., Selyuzhenkov I., Shabanov I., Singh US, Smyrski J., Spies S., Ströbele H., Stroth J., Stumm J., Svoboda O., Szala M., Tlusty P., Traxler M., Ungethüm C., Vazquez-Doce O., Wagner V., Weber A.A., Wendisch C., Wiebusch M.G., Wintz P., Wirth J., Zhilin A., and Zumbruch P.

Subjects
Physics, QC1-999
Abstract

Radiative transition of an excited baryon to a nucleon with emission of a virtual massive photon converting to dielectron pair (Dalitz decays) provides important information about baryon-photon coupling at low q2 in timelike region. A prominent enhancement in the respective electromagnetic transition Form Factors (etFF) at q2 near vector mesons ρ/ω poles has been predicted by various calculations reflecting strong baryon-vector meson couplings. The understanding of these couplings is also of primary importance for the interpretation of the emissivity of QCD matter studied in heavy ion collisions via dilepton emission. Dedicated measurements of baryon Dalitz decays in proton-proton and pion-proton scattering with HADES detector at GSI/FAIR are presented and discussed. The relevance of these studies for the interpretation of results obtained from heavy ion reactions is elucidated on the example of the HADES results.

Published
2020
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39. Time-Like Baryon Transitions studies with HADES

Author

Ramstein B., Adamczewski-Musch J., Arnold O., Arnoldi-Meadows B., Belounnas A., Belyaev A., Biernat J., Blanco A., Blume C., Böhmer M., Bordalo P., Chlad L., Chudoba P., Ciepał I., Deveaux C., Dittert D., Dreyer J., Fabbietti L., Fateev O., Fonte P., Franco C., Friese J., Fröhlich I., Galatyuk T., Garzón J. A., Gernhäuser R., Gillitzer A., Golubeva M., Greifenhagen R., Guber F., Gumberidze M., Harabasz S., Heinz T., Hennino T., Himmelreich M., Höhne C., Holzmann R., Ierusalimov A., Ivanov V., Ivashkin A., Kämpfer B., Kajetanowicz M., Kampert K-H., Karavicheva T., Kardan B., Khomyakov V., Koenig I., Koenig W., Korcyl G., Kornakov G., Kornas F., Kotte R., Kozela A., Kuboś J., Kugler A., Kunz T., Kurepin A., Kurilkin P., Kushpil V, Ladygin V., Lalik R., Lebedev A., Linev S., Liu M., Lopes L., Lorenz M., Lykasov G., Mahmoud T., Malakhov A., Markert J., Maurus S., Metag V., Michel J., Mihaylov D.M., Mikhaylov V., Morozov S., Müntz C., Naumann L., Nowakowski K., Parpottas Y., Patel V., Pauly C., Pechenov V., Pechenova O., Pereira A., Petousis V., Petukhov O., Pfeifer D., Pietraszko J., Przygoda W., Pysz K., Ramos S., Reshetin A., Ritman L., Rodriguez-Ramos P., Rost A., Sadovsky A., Salabura P., Scheib T., Schuldes H., Schwab E., Scozzi F., Seck F., Sellheim P., Selyuzhenkov I., Silva L., Smyrski J., Sobiella M., Spataro S., Spies S., Ströbele H., Stroth J., Strzempek P., Svoboda O., Szala M., Taranenko A., Tlusty P., Traxler M., Troyan A., Tsertos H., Wagner V., Wendisch C., Wiebusch M.G., Wintz P., Wirth J., Włoch B., Zhilin A., Zinchenko A., Zumbruch P., and Zuschke M.

Subjects
Physics, QC1-999
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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42. Highlights of Resonance Measurements With HADES

Author

Epple Eliane, Adamczewski-Musch J., Arnold O., Atomssa E.T., Behnke C., Berger-Chen J.C., Biernat J., Blanco A., Blume C., Böhmer M., Bordalo P., Chernenko S., Deveaux C., Dybczak A., Fabbietti L., Fateev O., Fonte P., Franco C., Friese J., Fröhlich I., Galatyuk T., Garzón J. A., Gill K., Golubeva M., Guber F., Gumberidze M., Harabasz S., Hennino T., Hlavac S., Höhne C., Holzmann R., Ierusalimov A., Ivashkin A., Jurkovic M., Kämpfer B., Karavicheva T., Kardan K., Koenig I., Koenig W., Kolb B. W., Korcyl G., Kornakov G., Kotte R., Krása A., Krebs E., Kuc H., Kugler A., Kunz T., Kurepin A., Kurilkin A., Kurilkin P., Ladygin V., Lalik R., Lapidus K., Lebedev A., Lopes L., Lorenz M., Mahmoud T., Maier L., Mangiarotti A., Markert J., Metag V., Michel J., Müntz C., Münzer R., Naumann L., Palka M., Parpottas Y., Pechenov V., Pechenova O., Petousis V., Pietraszko J., Przygoda W., Ramstein B., Rehnisch L., Reshetin A., Rost A., Rustamov A., Sadovsky A., Salabura P., Scheib T., Schmidt-Sommerfeld K., Schuldes H., Sellheim P., Siebenson J., Silva L., Sobolev Yu.G., Spataro S., Ströbele H., Stroth J., Strzempek P., Sturm C., Svoboda O., Tarantola A., Teilab K., Tlusty P., Traxler M., Tsertos H., Vasiliev T., Wagner V., Wendisch C., Wirth J., Wüstenfeld J., Zanevsky Y., and Zumbruch P.

Subjects
Physics, QC1-999
Abstract

This contribution aims to give a basic overview of the latest results regarding the production of resonances in different collision systems. The results were extracted from experimental data collected with HADES that is a multipurpose detector located at the GSI Helmholtzzentrum, Darmstadt. The main points discussed here are: the properties of the strange resonances Λ(1405) and Σ(1385), the role of Δ’s as a source of pions in the final state, the production dynamics reflected in form of differential cross sections, and the role of the ϕ meson as a source for K− particles.

Published
2015
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43. Investigating hadronic resonances in pp interactions with HADES

Author

Przygoda Witold, Adamczewski-Musch J., Arnold O., Atomssa E.T., Behnke C., Berger-Chen J.C., Biernat J., Blanco A., Blume C., Böhmer M., Bordalo P., Chernenko S., Deveaux C., Dybczak A., Epple E., Fabbietti L., Fateev O., Fonte P., Franco C., Friese J., Fröhlich I., Galatyuk T., Garzón J. A., Gill K., Golubeva M., Guber F., Gumberidze M., Harabasz S., Hennino T., Hlavac S., Höhne C., Holzmann R., Ierusalimov A., Ivashkin A., Jurkovic M., Kämpfer B., Karavicheva T., Kardan B., Koenig I., Koenig W., Kolb B. W., Korcyl G., Kornakov G., Kotte R., Krása A., Krebs E., Kuc H., Kugler A., Kunz T., Kurepin A., Kurilkin A., Kurilkin P., Ladygin V., Lalik R., Lapidus K., Lebedev A., Lopes L., Lorenz M., Mahmoud T., Maier L., Mangiarotti A., Markert J., Metag V., Michel J., Müntz C., Münzer R., Naumann L., Palka M., Parpottas Y., Pechenov V., Pechenova O., Petousis V., Pietraszko J., Ramstein B., Rehnisch L., Reshetin A., Rost A., Rustamov A., Sadovsky A., Salabura P., Scheib T., Schmidt-Sommerfeld K., Schuldes H., Sellheim P., Siebenson J., Silva L., Sobolev Yu.G., Spataro S., Ströbele H., Stroth J., Strzempek P., Sturm C., Svoboda O., Tarantola A., Teilab K., Tlusty P., Traxler M., Tsertos H., Vasiliev T., Wagner V., Wendisch C., Wirth J., Wüstenfeld J., Zanevsky Y., and Zumbruch P.

Subjects
Physics, QC1-999
Abstract

In this paper we report on the investigation of baryonic resonance production in proton-proton collisions at the kinetic energies of 1.25 GeV and 3.5 GeV, based on data measured with HADES. Exclusive channels npπ+ and ppπ0 as well as ppe+e− were studied simultaneously in the framework of a one-boson exchange model. The resonance cross sections were determined from the one-pion channels for Δ(1232) and N(1440) (1.25 GeV) as well as further Δ and N* resonances up to 2 GeV/c2 for the 3.5 GeV data. The data at 1.25 GeV energy were also analysed within the framework of the partial wave analysis together with the set of several other measurements at lower energies. The obtained solutions provided the evolution of resonance production with the beam energy, showing a sizeable non-resonant contribution but with still dominating contribution of Δ(1232)P33. In the case of 3.5 GeV data, the study of the ppe+e− channel gave the insight on the Dalitz decays of the baryon resonances and, in particular, on the electromagnetic transition form-factors in the time-like region. We show that the assumption of a constant electromagnetic transition form-factors leads to underestimation of the yield in the dielectron invariant mass spectrum below the vector mesons pole. On the other hand, a comparison with various transport models shows the important role of intermediate ρ production, though with a large model dependency. The exclusive channels analysis done by the HADES collaboration provides new stringent restrictions on the parameterizations used in the models.

Published
2015
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44. In-medium hadron properties measured with HADES

Author

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

Subjects
Physics, QC1-999
Abstract

Many QCD based and phenomenological models predict changes of hadron properties in a strongly interacting environment. The results of these models differ significantly and the experimental determination of hadron properties in nuclear matter is essential. In this paper we present a review of selected physics results obtained at GSI Helmholtzzentrum für Schwerionenforschung GmbH by HADES (High-Acceptance Di-Electron Spectrometer). The e+e− pair emission measured for proton and heavy-ion induced collisions is reported together with results on strangeness production. The future HADES activities at the planned FAIR facility are also discussed.

Published
2014
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45. Low mass dielectrons radiated off cold nuclear matter measured with HADES

Author

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

Subjects
Physics, QC1-999
Abstract

The High Acceptance DiElectron Spectrometer HADES [1] is installed at the Helmholtzzentrum für Schwerionenforschung (GSI) accelerator facility in Darmstadt. It investigates dielectron emission and strangeness production in the 1-3 AGeV regime. A recent experiment series focusses on medium-modifications of light vector mesons in cold nuclear matter. In two runs, p+p and p+Nb reactions were investigated at 3.5 GeV beam energy; about 9·109 events have been registered. In contrast to other experiments the high acceptance of the HADES allows for a detailed analysis of electron pairs with low momenta relative to nuclear matter, where modifications of the spectral functions of vector mesons are predicted to be most prominent. Comparing these low momentum electron pairs to the reference measurement in the elementary p+p reaction, we find in fact a strong modification of the spectral distribution in the whole vector meson region.

Published
2014
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46. Measurement of the quasi free np → npπ+π− and np → ppπ−π0 reactions at 1.25 GeV With HADES

Author

Kurilkin A., Arnold O., Atomssa E. T., Behnke C., Belyaev A., Berger-Chen J. C., Biernat J., Blanco A., Blume C., Böhmer M., Bordalo P., Chernenko S., Deveaux C., Dybczak A., Epple E., Fabbietti L., Fateev O., Fonte P., Franco C., Friese J., Fröhlich I., Galatyuk T., Garzón J. A., Gill K., Golubeva M., González-Díaz D., Guber F., Gumberidze M., Harabasz S., Hennino T., Höhne C., Holzmann R., Ierusalimov A., Ivashkin A., Jurkovic M., Kämpfer B., Karavicheva T., Kardan K., Koenig I., Koenig W., Kolb B. W., Korcyl G., Kornakov G., Kotte R., Krása A., Krebs E., Krizek F., Kuc H., Kugler A., Kunz T., Kurepin A., Kurilkin P., Ladygin V., Lalik R., Lang S., Lapidus K., Lebedev A., Lopes L., Lorenz M., Maier L., Mangiarotti A., Markert J., Metag V., Michel J., Müntz C., Münzer R., Naumann L., Palka M., Pechenov V., Pechenova O., Petousis V., Pietraszko J., Przygoda W., Ramstein B., Rehnisch L., Reshetin A., Rost A., Rustamov A., Sadovsky A., Salabura P., Scheib T., Schmidt-Sommerfeld K., Schuldes H., Sellheim P., Siebenson J., Silva L., Sobolev Yu. G., Spataro S., Ströbele H., Stroth J., Strzempek P., Sturm C., Svoboda O., Tarantola A., Teilab K., Tlusty P., Traxler M., Tsertos H., Vasiliev T., Wagner V., Wendisch C., Wirth J., Wüstenfeld J., Yurevich S., and Zanevsky Y.

Subjects
Physics, QC1-999
Abstract

We present the results of two-pion production in tagged quasi-free np collisions at a deutron incident beam energy of 1.25 GeV/c measured with the High-Acceptance Di-Electron Spectrometer (HADES) installed at GSI. The specific acceptance of HADES allowed for the first time to obtain high-precision data on π+π− and π−π0 production in np collisions in a region corresponding to large transverse momenta of the secondary particles. The obtained differential cross section data provide strong constraints on the production mechanisms and on the various baryon resonance contributions (∆∆, N(1440), N(1520), ∆(1600)). The invariant mass and angular distributions from the np → npπ+π −and np → ppπ−π0 reactions are compared with different theoretical model predictions.

Published
2014
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47. HADES results in elementary reactions

Author

Ramstein B., Adamczewski-Musch J., Arnold O., Atomssa E.T., Behnke C., Berger-Chen J.C., Biernat J., Blanco A., Blume C., Böhmer M., Bordalo P., Chernenko S., Deveaux C., Dybczak A., Epple E., Fabbietti L., Fateev O., Fonte P., Franco C., Friese J., Fröhlich I., Galatyuk T., Garzón J. A., Gill K., Golubeva M., Guber F., Gumberidze M., Harabasz S., Hennino T., Hlavac S., Höhne C., Holzmann R., Ierusalimov A., Ivashkin A., Jurkovic M., Kämpfer B., Karavicheva T., Kardan K., Koenig I., Koenig W., Kolb B. W., Korcyl G., Kornakov G., Kotte R., Krása A., Krebs E., Kuc H., Kugler A., Kunz T., Kurepin A., Kurilkin A., Kurilkin P., Ladygin V., Lalik R., Lapidus K., Lebedev A., Lopes L., Lorenz M., Mahmoud T., Maier L., Mangiarotti A., Markert J., Metag V., Michel J., Müntz C., Münzer R., Naumann L., Palka M., Parpottas Y., Pechenov V., Pechenova O., Petousis V., Pietraszko J., Przygoda W., Rehnisch L., Reshetin A., Rost A., Rustamov A., Sadovsky A., Salabura P., Scheib T., Schmidt-Sommerfeld K., Schuldes H., Sellheim P., Siebenson J., Silva L., Sobolev Yu.G., Spataro S., Ströbele H., Stroth J., Strzempek P., Sturm C., Svoboda O., Tarantola A., Teilab K., Tlusty P., Traxler M., Tsertos H., Vasiliev T., Wagner V., Wendisch C., Wirth J., Wüstenfeld J., Zanevsky Y., and Zumbruch P.

Subjects
Physics, QC1-999
Abstract

Recent results obtained with the HADES experimental set-up at GSI are presented with a focus on dielectron production and strangeness in pp and quasi-free np reactions. Perspectives related to the very recent experiment using the pion beam at GSI are also discussed.

Published
2014
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48. The dp-elastic cross section measurement at the deuteron kinetic energy of 2.5 GeV

Author

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

Subjects
Physics, QC1-999
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
2012
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49. Resonance production in p+p, p+A and A+A collisions measured with HADES

Author

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

Subjects
Physics, QC1-999
Abstract

The knowledge of baryonic resonance properties and production cross sections plays an important role for the extraction and understanding of medium modifications of mesons in hot and/or dense nuclear matter. We present and discuss systematics on dielectron and strangeness production obtained with HADES on p+p, p+A and A+A collisions in the few GeV energy regime with respect to these resonances.

Published
2012
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50. Medium effects in proton-induced K0 production at 3.5 GeV.

Author

Agakishiev, G., Arnold, O., Belver, D., Belyaev, A., Berger-Chen, J. C., Blanco, A., Bohmer, M., Boyard, J. L., Cabanelas, P., Chernenko, S., Dybczak, A., Epple, E., Fabbietti, L., Fateev, O., Finocchiaro, P., Fonte, P., Friese, J., Frohlich, I., Galatyuk, T., and Garzon, J. A.

Subjects
*COLLISIONS (Nuclear physics), *KINETIC energy, *KAONS, *CHIRAL perturbation theory, *NUCLEAR density
Abstract

We present the analysis of the inclusive K° production in p + p and p + Nb collisions measured with the HADES detector (GSI Helmholtzzentrum for Heavy-Ion Research, Darmstadt) at a beam kinetic energy of 3.5 GeV. Data are compared to the Giessen Boltzmann-Uehling-Uhlenbeck (GiBUU) transport model. The data suggest the presence of a repulsive momentum-dependent kaon potential as predicted by the chiral perturbation theory (ChPT). For the kaon at rest and at normal nuclear density, the ChPT potential amounts to 35 MeV. A detailed tuning of the kaon production cross sections implemented in the model has been carried out to reproduce the experimental data measured in p + p collisions. The uncertainties in the parameters of the model were examined with respect to the sensitivity of the experimental results from p + Nb collisions to the in-medium kaon potential. [ABSTRACT FROM AUTHOR]

Published
2014
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