Dilepton analysis in the HADES spectrometer for C+C at 2 A GeV
| Autor: | Krücken, R., Bielčík, Jaroslav, Agakishiev, G., Agodi, C., Alvarez-Poll, H., Bałanda, A., Bellia, G., Böhmer, M., Boyard, J. L., Braun-Munzinger, P., Chernenko, S., Christ, T., Coniglione, R., Djeridi, R., Dohrmann, F., Durán, I., Eberl, T., Fabbietti, L., Fateev, O., Finocchiaro, P., Friese, J., Fröhlich, I., Garzón, J. A., Gernhäuser, R., Golubeva, M., González-Daz, D., Grosse, E., Guber, F., Hennino, T., Hlavac, S., Holzmann, R., Ierusalimov, A., Iori, I., Jaskula, M., Jurkovic, M., Kämpfer, B., Kanaki, K., Karavicheva, T., Koenig, I., Koenig, W., Kolb, B. W., Kottel, R., Kotulic-Bunta, J., Kugler, A., Kühn, W., Kulessa, R., Kurepin, A., Lang, S., Lehnert, J., Maiolino, C., Markert, J., Metag, V., Mousa, J., Münch, M., Müntz, C., Naumann, L., Novotny, R., Novotny, J., Otwinowski, J., Pachmayer, Y. C., Pant, L. M., Pechenov, V., Pérez, T., Pietraszko, J., Pleskac, R., Pospísil, V., Przygoda, W., Rabin, N., Ramstein, B., Reshetin, A., Ritman, J., Roy-Stephan, M., Rustamov, A., Sadovsky, A., Sailer, B., Salabura, P., Sánchez, M., Sapienza, P., Schmah, A., Simon, R., Smolyankin, V., Smykov, L., Spataro, S., Spruck, B., Stroebele, H., Stroth, J., Sturm, C., Sudol, M., Tlusty, P., Toia, A., Traxler, M., Tsertos, Haralambos, Wagner, V., Wisniowski, M., Wojcik, T., Wüstenfeld, J., Zanevsky, Y., Zovinec, D., Zumbruch, P. |
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| Přispěvatelé: | Tsertos, Haralambos [0000-0001-5966-343X], 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 |
| Rok vydání: | 2005 |
| Předmět: |
Nuclear and High Energy Physics
Particle physics Meson Physics::Instrumentation and Detectors Nuclear Theory 01 natural sciences 7. Clean energy Spectral line Nuclear physics 0103 physical sciences [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex] 010306 general physics Nuclear Experiment Positron annihilation Physics RING RECOGNITION Spectrometer 010308 nuclear & particles physics Signal reconstruction Detector High Energy Physics::Phenomenology HADRON PROPERTIES MATTER High Energy Physics::Experiment Lepton |
| Zdroj: | Journal of Physics G: Nuclear and Particle Physics J.Phys.G Nucl.Part.Phys. Journal of Physics G Hot Quarks 2004 – Workshop for Young Scientists on the Physics of Ultra-Relativistic Nucleus–Nucleus Collisions Hot Quarks 2004 – Workshop for Young Scientists on the Physics of Ultra-Relativistic Nucleus–Nucleus Collisions, Jul 2004, Taos Valley, United States. pp.S231-S237, ⟨10.1088/0954-3899/31/4/028⟩ |
| ISSN: | 0954-3899 1361-6471 |
| Popis: | The high-acceptance dielectron spectrometer (HADES) has become operational at GSI Darmstadt. The primary physics programme is to study in-medium changes of light vector mesons via their e+e- decays. The methods of dilepton signal reconstruction in the HADES spectrometer and preliminary dilepton spectra for C+C reactions at 2 A GeV are presented. In the signal reconstruction, particularly important is the reduction of the huge combinatorial background arising from e+e- combinations of leptons from gamma conversion in materials with other leptons in the collision. The purity of the dilepton signal is determined by using GEANT simulations with the full HADES geometry and a realistic detector response. © 2005 IOP Publishing Ltd. 31 4 S231 S237 |
| Databáze: | OpenAIRE |
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