The pp -&gt; pp pi pi pi reaction channels in the threshold region

Pauly, C.; Bogoslawsky, D.; Kullander, S.; Clement, H.; Petukhov, Y.; Morosov, B.; Gustafsson, L.; Ekström, C.; Ivanov, G.; Skorodko, T.; Johansson, T.; Jiganov, E.; Pettersson, H.; Wagner, G. J.; Höistad, B.; Thörngren Engblom, P.; Stepaniak, J.; Oelert, W.; Zlomanczuk, J.; Zabierowski, J.; Koch, I.; Demirörs, L.; Bashkanov, M.; Tikhomirov, V.; Tchernyshev, V.; Sopov, V.; Keleta, S.; Shwartz, B.; Kuznetsov, A.; Wolke, M.; Yamamoto, A.; Scobel, W.; Capellaro, F.; Fransson, K.; CELSIUS-WASA, Coll.; Ruber, R.J.M.Y.; Jacewicz, M.; Povtorejko, A.; Wiedner, U.; Marciniewski, P.; Calen, H.; Meier, R.; Schönning, K.; Turowiecki, A.; Kupsc, A.

doi:10.1016/j.physletb.2007.04.004

Journal Article

The pp -> pp pi pi pi reaction channels in the threshold region

Pauly, C. ; Jacewicz, M. ; Koch, I. ; Bashkanov, M. ; Bogoslawsky, D. ; Calen, H. ; Capellaro, F. ; Clement, H. ; Demirörs, L. ; Ekström, C. ; Fransson, K. ; Gustafsson, L. ; Höistad, B. ; Ivanov, G. ; Jiganov, E. ; Johansson, T. ; Keleta, S. ; Kullander, S. ; Kupsc, A. ; Kuznetsov, A. ; Marciniewski, P. ; Meier, R. ; Morosov, B. ; Oelert, W.FZJ* ; Petukhov, Y. ; Pettersson, H. ; Povtorejko, A. ; Ruber, R. J. M. Y. ; Schönning, K. ; Scobel, W. ; Skorodko, T. ; Shwartz, B. ; Sopov, V. ; Stepaniak, J. ; Tchernyshev, V. ; Thörngren Engblom, P. ; Tikhomirov, V. ; Turowiecki, A. ; Wagner, G. J. ; Wiedner, U. ; Wolke, M.FZJ* ; Yamamoto, A. ; Zabierowski, J. ; Zlomanczuk, J. ; CELSIUS-WASA, C.

2007
North-Holland Publ. Amsterdam

Physics letters / B 649, (2007) [10.1016/j.physletb.2007.04.004]

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Please use a persistent id in citations: doi:10.1016/j.physletb.2007.04.004

Abstract: The cross section for direct neutral and charged three pion production in pp interactions was measured at excess energies in the range 160216 MeV. That comprises the first measurement of the pp -> pp pi(0)pi(0)pi(0) reaction and the direct comparison with the pp up arrow pp pi(+)pi(-)pi(0) process. The experiment was performed above the eta meson production threshold and the cross section could be directly normalized to the cross section of the pp -> pp eta reaction, with the eta decaying into 3 pions. Since the same final states are selected, the measurement has a low systematical error. The measured cross section ratio sigma(pp -> pp pi(+)pi(-)pi(0))/sigma(pp -> pp pi(0)pi(0)pi(0)) is compared to predictions of dominance of different isobars in the intermediate state. (c) 2007 Elsevier B.V. All rights reserved.

Keyword(s): J ; threshold measurement (auto) ; three pion production (auto) ; final state interaction (auto)

Classification:

Physics, Multidisciplinary

Note: Record converted from VDB: 12.11.2012

Research Program(s):

Physik der Hadronen und Kerne (P53)

Appears in the scientific report 2007

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