Low-Mass (M<1.2 Gev/c^2) Sigma0 - Meson Produced in the System Pi+Pi- from the Reaction np --> np Pi+Pi- at Pn = 5.20 Gev/c^2

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dc.creatorTroyan, Yu. A.
dc.creatorBeljaev, A. V.
dc.creatorTroyan, A. Yu.
dc.creatorPlekhanov, E. B.
dc.creatorJerusalimov, A. P.
dc.creatorArakelian, S. G.
dc.date2006-11-20
dc.date2006-12-07
dc.date.accessioned2026-07-07T07:32:00Z
dc.date.available2026-07-07T07:32:00Z
dc.descriptionThe production and properties of the resonances in the system of Pi+Pi- were studied in the reaction np --> npPi+Pi- at the momentum of incident neutrons Pn=(5.20 +/- 0.12)GeV/c. In this work in comparison with previous ones we made more hard selection of events taking into account track measurement precise. In the distribution of the Pi+Pi- combinations effective masses we have found 8 peculiarities. All the observable peculiarities have spins equal to zero. There were no corresponding picks in the Pi-PI- and Pi-Pi0 - systems in the reactions np --> npPi+Pi- Pi- and np --> npPi-Pi0. So, we have observed a row of resonances with a set of quantum numbers 0+(0++) -- SIGMA0 - mesons decaying on the channel SIGMA0 --> Pi+Pi-. The obtained in other experiments masses coincide with the sequence of masses observed in our experiment. Especially good coincidence can be obtained in the K-matrix approach (see RPP).
dc.description6 pages, 3 figures, 1 tables; Presented at XVIII ISHEPP "Relativistic Nuclear Physics and Quantum Chromodynamics" JINR, Dubna, Russia, September, 2006
dc.identifierhttps://arxiv.org/abs/hep-ex/0611033
dc.identifierhttp://arxiv.org/abs/hep-ex/0611033
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/118956
dc.subjectHigh Energy Physics - Experiment
dc.subjectHigh Energy Physics - Lattice
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectNuclear Experiment
dc.titleLow-Mass (M<1.2 Gev/c^2) Sigma0 - Meson Produced in the System Pi+Pi- from the Reaction np --> np Pi+Pi- at Pn = 5.20 Gev/c^2
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