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Dilepton analysis in the HADES spectrometer for 12C + 12C at 2 AGeV

Authors :
Otwinowski, J.
Agakichiev, G.
Agodi, C.
Alvarez-Pol, H.
Balanda, A.
Bellia, G.
Belver, D.
Bielcik, J.
Böhmer, M.
Bokemeyer, H.
Boyard, J.
Braun-Munzinger, P.
Chepurnov, V.
Chernenko, S.
Christ, T.
Coniglione, R.
Daues, H.
Diaz, J.
Djeridi, R.
Dohrmann, F.
Duran, I.
Eberl, T.
Emelianov, V.
Fabbietti, L.
Fateev, O.
Fernandez, C.
Finocchiaro, P.
Friese, J.
Fröhlich, I.
Fuentes, B.
Garzon, J.
Gernhäuser, R.
Golubeva, M.
Gonzalez-Diaz, D.
Grosse, E.
Guber, F.
Hehner, J.
Heinz, T.
Hennino, T.
Hlavac, S.
Hoffmann, J.
Holzmann, R.
Ierusalimov, A.
Iori, I.
Jaskula, M.
Jurkovic, M.
Kämpfer, B.
Kanaki, K.
Karavicheva, T.
Koenig, I.
Koenig, W.
Kolb, B.
Kopf, U.
Kotte, R.
Kotulic-Bunta, J.
Krücken, R.
Kugler, A.
Kühn, W.
Kulessa, R.
Kurepin, A.
Kutukian-Nieto, T.
Lang, S.
Lehnert, J.
Maiolino, C.
Marin, J.
Markert, J.
Mishin, Y.
Montes, N.
Mousa, J.
Münch, M.
Müntz, C.
Naumann, L.
Novotny, J.
Ott, W.
Pachmayer, Y.
Panebrasev, Y.
Pechenov, V.
Perez, T.
Pietraszko, J.
Pleskac, R.
Pospisil, V.
Pvrzygoda, W.
Rabin, N.
Ramstein, B.
Reshetin, A.
Ritman, J.
Rodrigez Pieto, G.
Roy-Stephan, M.
Rustamov, A.
Sabin, F. J.
Sadovsky, A.
Sailer, B.
Salabura, P.
Sanchez, M.
Sapienza, P.
Schmah, A.
Schroeder, C.
Schwab, E.
Senger, P.
Simon, R.
Smolyankin, V.
Smykov, L.
Spataro, S.
Stelzer, H.
Stroebele, H.
Stroth, J.
Sturm, C.
Sudol, M.
Titov, A.
Tlusty, P.
Toia, A.
Traxler, M.
Tsertos, H.
Vazquez, A.
Volkov, Y.
Wagner, V.
Walus, W.
Wang, Y.
Winkler, S.
Wisniowski, M.
Wojcik, T.
Wüstenfeld, J.
Zanevsky, Y.
Zovinec, D.
Zumbruch, P.
Source :
International Journal of Modern Physics A 20(2005), 602-605
Publication Year :
2005

Abstract

The identification of light mesons in the HADES spectrometer is based on an invariant mass reconstruction of their decay into e+e- pairs. In the delepton (e+e) signal reconstruction particularly important is the reduction of a combinatorial background arising from wrong combinations of e+ and e- to unlike sign pairs. The purity of the dilepton signal is determined by using GEANT simulations. The analysis methods of the dilepton signal and combinatorial background reconstruction will be presented.

Subjects

Subjects :
TheoryofComputation_ANALYSISOFALGORITHMSANDPROBLEMCOMPLEXITY

Details

Language :
English
Database :
OpenAIRE
Journal :
International Journal of Modern Physics A 20(2005), 602-605
Accession number :
edsair.od......4577..6ba8b57cc1b7ec46de252cc8c7c62e97

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