Journal article
Authors list: Adlarson, P.; Augustyniak, W.; Bardan, W.; Bashkanov, M.; Bergmann, F. S.; Berlowski, M.; Bhatt, H.; Bondar, A.; Buescher, M.; Calen, H.; Ciepal, I.; Clement, H.; Czerwinski, E.; Demmich, K.; Engels, R.; Erven, A.; Erven, W.; Eyrich, W.; Fedorets, P.; Foehl, K.; Fransson, K.; Goldenbaum, F.; Goswami, A.; Grigoryev, K.; Gullstrom, C. -O.; Heijkenskjold, L.; Hejny, V.; Huesken, N.; Jarczyk, L.; Johansson, T.; Kamys, B.; Kemmerling, G.; Khan, F. A.; Khatri, G.; Khoukaz, A.; Khreptak, O.; Kirillov, D. A.; 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, H. -P.; Moskal, P.; Ohm, H.; del Rio, E. Perez; Piskunov, N. M.; Prasuhn, D.; Pszczel, D.; Pysz, K.; Pyszniak, A.; Ritman, J.; Roy, A.; Rudy, 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.; Stroeher, H.; Szczurek, A.; Trzcinski, A.; Varma, R.; Wolke, M.; Wronska, A.; Wuestner, P.; Yamamoto, A.; Zabierowski, J.; Zielinski, M. J.; Zlomanczuk, J.; Zupranski, P.; Zurek, M.; Kubis, B.; Leupold, S.
Publication year: 2017
Pages: 418-425
Journal: Physics Letters B
Volume number: 770
ISSN: 0370-2693
eISSN: 1873-2445
DOI Link: https://doi.org/10.1016/j.physletb.2017.03.050
Publisher: Elsevier
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.
Citation Styles
Harvard Citation style: Adlarson, P., Augustyniak, W., Bardan, W., Bashkanov, M., Bergmann, F., Berlowski, M., et al. (2017) Measurement of the ω → π+π-π0 Dalitz plot distribution The WASA-at-COSY Collaboration, Physics Letters B, 770, pp. 418-425. https://doi.org/10.1016/j.physletb.2017.03.050
APA Citation style: Adlarson, P., Augustyniak, W., Bardan, W., Bashkanov, M., Bergmann, F., Berlowski, M., Bhatt, H., Bondar, A., Buescher, M., Calen, H., Ciepal, I., Clement, H., Czerwinski, E., Demmich, K., Engels, R., Erven, A., Erven, W., Eyrich, W., Fedorets, P., ...Leupold, S. (2017). Measurement of the ω → π+π-π0 Dalitz plot distribution The WASA-at-COSY Collaboration. Physics Letters B. 770, 418-425. https://doi.org/10.1016/j.physletb.2017.03.050
Keywords
DECAYS; Decays of other mesons; DETECTOR; DISPERSIVE ANALYSIS; ETA; Light mesons; LIGHT VECTOR-MESONS; Meson-meson interactions; MU(+)MU(-)GAMMA; NA60; PARITY; PI-PI-SCATTERING; TRANSITION FORM-FACTORS
