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arXiv · 1011.3124

The Search and Study of Low-mass Scalar Mesons in the Reaction $np --> npπ^+π^-$ at Pn=3.83 Gev/c

Yu. A. Troyan·A. V. Beljaev·A. Yu. Troyan·E. B. Plekhanov·A. P. Jerusalimov·S. G. Arakelian
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Abstract

This work is devoted to search and study scalar $σ_0 0^+[0^++]$ - mesons in the system of $π^+π^-$ from the reaction $np -> npπ^+π^-$ at the impulse of the quasimonochromatic neutrons c from the data obtained in an exposure of the 1m H2 bubble chamber of LHE (JINR)The resonance with and has been found out in effective mass distribution. Value of a statistical deviation of this peculiarity from a background is more than four. Spin of the resonance has been estimated, which, with high probability, is equal 0. The other quantum numbers of the resonance have been estimated.

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Yu. A. Troyan, A. V. Beljaev, A. Yu. Troyan, E. B. Plekhanov, A. P. Jerusalimov, S. G. Arakelian. 2010-11-22. The Search and Study of Low-mass Scalar Mesons in the Reaction $np --> npπ^+π^-$ at Pn=3.83 Gev/c. https://arxiv.org/abs/1011.3124

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