Please use this identifier to cite or link to this item: http://dspace.library.iitb.ac.in/xmlui/handle/123456789/19516
Title: Measurement of the omega -> pi(+)pi(-)pi(0) Dalitz plot distribution The WASA-at-COSY Collaboration
Authors: ADLARSON, P
AUGUSTYNIAK, W
BARDAN, W
BASHKANOV, M
BERGMANN, FS
BERLOWSKI, M
BHATT, H
BONDAR, A
BUSCHER, M
CALEN, H
CIEPAL, I
CLEMENT, H
CZERWINSKI, E
DEMMICH, K
ENGELS, R
ERVEN, A
ERVEN, W
EYRICH, W
FEDORETS, P
FOHL, K
FRANSSON, K
GOLDENBAUM, F
GOSWAMI, A
GRIGORYEV, K
GULLSTROM, CO
HEIJKENSKJOLD, L
HEJNY, V
HUSKEN, N
JARCZYK, L
JOHANSSON, T
KAMYS, B
KEMMERLING, G
KHAN, FA
KHATRI, G
KHOUKAZ, A
KHREPTAK, O
KIRILLOV, DA
KISTRYN, S
KLEINES, H
KLOS, B
KRZEMIEN, W
KULESSA, P
KUPSC, A
KUZMIN, A
LALWANI, K
LERSCH, D
LORENTZ, B
MAGIERA, A
MAIER, R
MARCINIEWSKI, P
MARIANSKI, B
MORSCH, HP
MOSKAL, P
OHM, H
DEL RIO, EP
PISKUNOV, NM
PRASUHN, D
PSZCZEL, D
PYSZ, K
PYSZNIAK, A
RITMAN, J
ROY, A
RUDYC, Z
RUNDEL, O
SAWANT, S
SCHADMAND, S
SCHATTI-OZERIANSKA, I
SEFZICK, T
SERDYUK, V
SHWARTZ, B
SITTERBERG, K
SKORODKO, T
SKURZOK, M
SMYRSKI, J
SOPOV, V
STASSEN, R
STEPANIAK, J
STEPHAN, E
STERZENBACH, G
STOCKHORST, H
STROHER, H
SZCZUREK, A
TRZCINSKI, A
VARMA, R
WOLKE, M
WRONSKA, A
WUSTNER, P
YAMAMOTO, A
ZABIEROWSKI, J
ZIELINSKI, MJ
ZLOMANCZUK, J
ZUPRANSKI, P
ZUREK, M
KUBIS, B
LEUPOLD, S
Keywords: Transition Form-Factors
Light Vector-Mesons
Pi-Pi-Scattering
Dispersive Analysis
Decays
Eta
Mu(+)Mu(-)Gamma
Detector
Parity
Na60
Issue Date: 2017
Publisher: ELSEVIER SCIENCE BV
Citation: PHYSICS LETTERS B,770,418-425
Abstract: Using the production reactions pd -> He-3 omega and pp -> pp omega, the Dalitz plot distribution for the omega -> pi(+)pi(-)pi(0)decay is studied with the WASA detector at COSY, based on a combined data sample of (4.408 +/- 0.042) x 10(4) events. The Dalitz plot density is parametrised by a product of the P-wave phase space and a polynomial expansion in the normalised polar Dalitz plot variables Z and phi. For the first time, a deviation from pure P-wave phase space is observed with a significance of 4.1 sigma. The deviation is parametrised by a linear term 1+2 alpha Z, with alpha determined to be +0.147 +/- 0.036, consistent with the expectations of rho-meson-type final-state interactions of the P-wave pion pairs. (C) 2017 The Author. Published by Elsevier B.V.
URI: http://dx.doi.org/10.1016/j.physletb.2017.03.050
http://localhost:8080/xmlui/handle/123456789/19516
ISSN: 0370-2693
1873-2445
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