Measurement of the slope parameter for the n-&gt;3pi0 decay in the pp -&gt;ppn reaction

Bashkanov, M.; 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.; Calen, H.; Tikhomirov, V.; Tchernyshev, V.; Sopov, V.; Keleta, S.; Shwartz, B.; Kuznetsov, A.; Wolke, M.; Yamamoto, A.; Scobel, W.; Capellaro, F.; Fransson, K.; Ruber, R.J.M.Y.; Jacewicz, M.; Povtorejko, A.; Wiedner, U.; Pauly, C.; Marciniewski, P.; Demirörs, L.; Meier, R.; Schönning, K.; Turowiecki, A.; Kupsc, A.

doi:10.1103/PhysRevC.76.048201

Measurement of the slope parameter for the n->3pi0 decay in the pp ->ppn reaction

Bashkanov, M. ; Bogoslawsky, D. ; Calen, H. ; Capellaro, F. ; Clement, H. ; Demirörs, L. ; Ekström, C. ; Fransson, K. ; Gustafsson, L. ; Höistad, B. ; Ivanov, G. ; Jacewicz, M. ; Jiganov, E. ; Johansson, T. ; Keleta, S. ; Koch, I. ; Kullander, S. ; Kupsc, A. ; Kuznetsov, A. ; Marciniewski, P. ; Meier, R. ; Morosov, B. ; Oelert, W. ; Pauly, C.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.

2007
Inst. Woodbury, NY

Physical review / C 76(4), 048201 (2007) [10.1103/PhysRevC.76.048201]

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Please use a persistent id in citations: http://hdl.handle.net/2128/10504 doi:10.1103/PhysRevC.76.048201

Abstract: The CELSIUS-WASA setup is used to measure the 3 pi(0) decay of eta mesons produced in pp interactions with beam kinetic energies of 1.36 and 1.45 GeV. The efficiency-corrected Dalitz plot and density distributions for this decay are shown, together with a fit of the quadratic slope parameter alpha yielding alpha = -0.026 +/- 0.010(stat) +/- 0.010(syst). This value is compared to recent experimental results and theoretical predictions.

Keyword(s): p p: exclusive reaction ; eta: hadroproduction ; eta: hadronic decay ; final state: (3pi0) ; pi0: radiative decay ; Dalitz plot ; slope ; mass spectrum: missing-mass ; mass spectrum: (2pi0) ; experimental results ; Uppsala CELSIUS Stor ; p p --> 2p eta ; eta --> 3pi0 ; pi0 --> 2photon ; 1.36-1.45 GeV-kin

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Note: Record converted from VDB: 12.11.2012; 4 pages, 7 Postscript figures, uses revtex4.sty

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Research Program(s):

Physik der Hadronen und Kerne (P53)

Appears in the scientific report 2007

Database coverage:
OpenAccess

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