Analysis of the reaction π{sup −}Be → π{sup −}π{sup 0}π{sup 0}Be at VES

We present the results of the analysis of diffractive reaction π{sup −}Be → π{sup −}π{sup 0}π{sup 0}Be measured with upgraded VES detector with the statistics of about 16 · 10{sup 6} events. The mass-independent partial-wave analysis is performed using set of 70 partial waves corresponding to natura...

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Hauptverfasser:	Ryabchikov, D., Dorofeev, V., Ekimov, A., Gotman, V., Ivashin, A., Kachaev, I., Kalendarev, V., Kholodenko, M., Konstantinov, V., Matveev, V., Nazarov, E., Nikolaenko, V., Plekhanov, A., Salomatin, Yu, Sugonyaev, V., Volkov, E., Khokhlov, Y., Zaitsev, A., Moscow Institute of Physics and Technology, Dolgoprudny, Mikhasenko, M., now at Helmholtz-Institut für Strahlen- und Kernphysik, Bonn, Polyakov, B.
Format:	Tagungsbericht
Sprache:	eng
Schlagworte:	BREIT-WIGNER FORMULA CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS DENSITY MATRIX MASS MEV RANGE 10-100 MOMENTUM TRANSFER PARITY PARTIAL WAVES SPIN STATISTICS
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Zusammenfassung:	We present the results of the analysis of diffractive reaction π{sup −}Be → π{sup −}π{sup 0}π{sup 0}Be measured with upgraded VES detector with the statistics of about 16 · 10{sup 6} events. The mass-independent partial-wave analysis is performed using set of 70 partial waves corresponding to natural-parity exchange mechanism and restricting the rank of spin-density matrix N{sub r} = 1. The data is divided into 40 MeV m(3π) bins and in 10 intervals of momentum transfer squared t′. The sub-density-matrix of mass independent PWA is subject to further mass dependent fits using Breit-Wigner resonant terms and coherent non-resonant backgrounds.
ISSN:	0094-243X 1551-7616
DOI:	10.1063/1.4938637