Measurement of the eta -> 3 pi(0) Dalitz plot distribution with the WASA detector at COSY
- ADOLPH, C
- ANGELSTEIN, M
- BASHKANOV, M
- BECHSTEDT, U
- BELOSTOTSKI, S
- BERLOWSKI, M
- BHATT, H
- BISPLINGHOFF, J
- BONDAR, A
- BORASOY, B
- BUSCHER, M
- SCOBEL, W
- SEFZICK, T
- SERDYUK, V
- SHAH, N
- SIEMASZKO, M
- SIUDAK, R
- SKORODKO, T
- SMOLINSKI, T
- SMYRSKI, J
- SOPOV, V
- CALEN, H
- SPOLGEN, D
- STEPANIAK, J
- STERZENBACH, G
- STROHER, H
- SZCZUREK, A
- TEUFEL, A
- TOLBA, T
- TRZCINSKI, A
- ULBRICH, K
- VARMA, R
- CHANDWANI, K
- VLASOV, P
- WEGLORZ, W
- WINNEMOLLER, A
- WIRZBA, A
- WOLKE, M
- WRONSKA, A
- WUSTNER, R
- XU, H
- YAMAMOTO, A
- YAMAOKA, H
- CLEMENT, H
- YUAN, X
- YUREV, L
- ZABIEROWSKI, J
- ZHENG, C
- ZIELINSKI, MJ
- ZIPPER, W
- ZLOMANCZUK, J
- ZWOLL, K
- ZYCHOR, I
- CZERWINSKI, E
- CZYZYKIEWICZ, R
- D'ORSANEO, G
- DUNIEC, D
- EKSTROM, 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
- HOISTAD, B
- IZOTOV, A
- JACEWICZ, M
- JANUSZ, M
- JANY, BR
- 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, UG
- MIKIRTYCHIANTS, M
- MIKLUKHO, O
- MILKE, N
- MITTAG, M
- MOSKAL, P
- NANDI, BK
- NAWROT, A
- NISSLER, R
- ODOYO, MA
- 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, CF
- RITMAN, J
- ROY, A
- RUBER, RJMY
- RUDY, Z
- SALMIN, R
- SCHADMAND, S
- SCHMIDT, A
- SCHNEIDER, H
- SCHROEDER, W
Publication date
January 2009
DOI Publisher
Elsevier BV Journal
Physics Letters BAbstract
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) 200
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