Search for the Cryptoexotic Member of the Baryon Antidecuplet 1/2+ in the Reactions pi- p --> pi- p and pi- p --> K L

• Published in: arXiv.org 2005-12
• Main Authors: collaboration, EPECUR, Alekseev, I G, P Ye Budkovsky, Kanavets, V P, Kats, M M, Koroleva, L I, Kulikov, V V, Morozov, B V, Nesterov, V M, Ryltsov, V V, Sakharov, V A, Sulimov, A D, Svirida, D N, Kovalev, A I, Kozlenko, N G, Kozlov, V S, Krivshich, A G, Novinsky, D V, Sumachev, V V, V Yu Trautman, Filimonov, Ye A
• Format: Article
• Language: English
• Subjects: Chambers; Invariants; Liquid hydrogen; Manpower; Resonance scattering; Searching; Target detection
• ISSN: 2331-8422
• DOI: 10.48550/arxiv.0509032

The main goal of this proposal is the search for a narrow cryptoexotic nucleon resonance by scanning of the pi- p system invariant mass in the region (1610-1770) MeV with the detection of pi- p and K Lambda decays. The scan is supposed to be done by the variation of the incident pi- 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 the first focus of the magnetooptical 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. The time scale of the project is about 3 years. The budget estimate including manpower, the apparatus and operation cost, is about 40 million rubles. The beam time required is (4-6) two week runs on "high" (10 GeV/c) flattop of the ITEP proton synchrotron.