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Search for the Cryptoexotic Member N[sub 10] of the Baryon Antidecuplet 1∕2+ in the Reactions Π[sup −]p→π[sup −]p and Π[sup −]P→kλ

AIP Conference Proceedings(2008)

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摘要
The main goal of this proposal is the search for a narrow cryptoexotic nucleon resonance by scanning of the π−p system invariant mass in the region (1610–1770) MeV with the detection of π−p and KΛ decays. The scan is supposed to be done by the variation of the incident π− momentum and its measurement with the accuracy of up to ±0.1% (better than 1 MeV in terms of the invariant mass in the whole energy range) with a set of proportional chambers located in first focus of the magneto‐optical channel. High sensitivity of the method to the resonance under search is shown. The secondary particles scattered from a liquid hydrogen target are detected by sets of the wire drift chambers equipped with modern electronics.Now it is achieved the pion beam momentum resolution better than 0.1% at Pπ = 1.5 GeV/c. The wire drift chambers are in preparation. The liquid hydrogen target is tested. The first experimental accelerator run can be at the end of 2008 year.
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