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This title appears in the Scientific Report : 2009 

Measurement of the eta -> 3 pi(0) Dalitz plot distribution with the WASA detector at COSY

Measurement of the eta -> 3 pi(0) Dalitz plot distribution with the WASA detector at COSY

In the first production run of the WASA experiment at COSY, the eta decay into three neutral pions was measured in proton-proton interactions at a proton beam kinetic energy of 1.4 GeV. The Dalitz plot of the three pious was Studied using 1.2 x 10(5) fully reconstructed events. and the quadratic slo...

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Personal Name(s): Adolph, C.
Angelstein, M. / Bashkanov, M. / Bechstedt, U. / Belostotski, S. / Berlowski, M. / Bhatt, H. / Bisplinghoff, J. / Bondar, A. / Barasoy, B. / Büscher, M. / Calen, H. / Chandwani, K. / Clement, H. / Czerwinski, E. / Czyzykiewicz, R. / D'Orsaneo, G. / Duniec, D. / Ekstroem, C. / Engels, R. / Erven, W. / Eyrich, W. / Fedorets, P. / Felden, O. / Fransson, K. / Gil, D. / Goldenbaum, F. / Grigoryev, K. / Heczko, A. / Hanhart, C. / Hejny, V. / Hinterberger, F. / Hodana, M. / Hoeistad, B. / Izotov, A. / Jacewicz, M. / Janusz, M. / Jany, B. R. / Jarczyk, L. / Johansson, T. / Kamys, B. / Kemmerling, G. / Keshelashvili, I. / Khakimova, O. / Khoukaz, A. / Kilian, K. / Kimura, N. / Kistryn, S. / Klaja, J. / Klaja, P. / Kleines, H. / Klos, B. / Kowalczyk, A. / Kren, F. / Krzemien, W. / Kulessa, P. / Kullander, S. / Kupsc, A. / Kuzmin, A. / Kyryanchuk, V. / Majewski, J. / Machner, H. / Magiera, A. / Maier, R. / Marciniewski, R. / Migdal, W. / Meissner, U.G. / Mikirtychyants, M. / Miklukho, O. / Milke, N. / Mittag, M. / Moskal, P. / Nandi, B. K. / Nawrot, A. / Nissler, R. / Odoyo, M. A. / Oelert, W. / Ohm, H. / Paul, N. / Pauly, C. / Petukhov, Y. / Piskunov, N. / Plucinski, P. / Podkopal, P. / Povtoreyko, A. / Prasuhn, D. / Pricking, A. / Pysz, K. / Rachowski, J. / Rausmann, T. / Redmer, C. F. / Ritman, J. / Roy, A. / Ruber, R.J.M.Y. / Rudy, Z. / Salmin, R. / Schadmand, S. / Schmidt, A. / Schneider, H. / Schröder, W. / Scobel, W. / Sefzick, T. / Serdyuk, V. / Shah, J. N. / Siemaszko, M. / Siudak, R. / Skorodko, T. / Smolinski, T. / Smyrski, J. / Sopov, V. / Spoelgen, D. / Stepaniak, J. / Sterzenbach, G. / Ströher, H. / Szcurek, A. / Teufel, A. / Tolba, T. / Trzcinski, A. / Ulbrich, K. / Varma, R. / Vlasov, P. / Weglorz, W. / Winnemoeller, A. / Wirzba, A. / Wolke, M. / Wronska, A. / Wüstner, P. / Xu, H. / Yamamoto, A. / Yamaoko, H. / Yuan, X. / Yurev, L. / Zabierowski, J. / Zheng, C. / Zielinski, M. J. / Zipper, W. / Zlomanczuk, J. / Zwoll, K. / Zychor, I.
Contributing Institute: Experimentelle Hadrondynamik; IKP-2
Institut 3 (Theoretische Kernphysik); IKP-3
Experimentelle Hadronstruktur; IKP-1
Zentralinstitut für Elektronik; ZEL
Published in: Physics letters / B, 677 (2009)
Imprint: Amsterdam North-Holland Publ. 2009
DOI: 10.1016/j.physletb.2009.03.063
Document Type: Journal Article
Research Program: Physik der Hadronen und Kerne
Series Title: Physics Letters B 677
Subject (ZB):
p p: interaction
eta: hadroproduction
Dalitz plot: slope
pi pi: final-state interaction
eta: hadronic decay
Juelich COSY PS
p p > > 2p eta
eta > > 3pi0
1.4 GeV
eta
eta -> 3 pi(0)
Dalitz plot
Link: Get full text
OpenAccess
OpenAccess
Publikationsportal JuSER
Please use the identifier: http://dx.doi.org/10.1016/j.physletb.2009.03.063 in citations.
Please use the identifier: http://hdl.handle.net/2128/10441 in citations.

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In the first production run of the WASA experiment at COSY, the eta decay into three neutral pions was measured in proton-proton interactions at a proton beam kinetic energy of 1.4 GeV. The Dalitz plot of the three pious was Studied using 1.2 x 10(5) fully reconstructed events. and the quadratic slope parameter alpha was determined to be -0.027 +/- 0.008(stat) +/- 0.005(syst). The result is consistent with previous measurements and further corroborates the importance of pion-pion final state interactions. (C) 2009 Elsevier B.V. All rights reserved.

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