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Loop mixing of the opposite parity fermion fields and its manifestation in πn scattering

Авторы: Lomov V.P., Kaloshin A.E., Kobeleva E.A.

Журнал: Proc. XXII Intern. Baldin Seminar on High Energy Physics Problems “Relativistic Nuclear Physics and Quantum Chromodynamics” (September 15–20, 2014, Dubna)

Том: F137031

Номер:

Год: 2014

Отчётный год: 2014

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URL: http://relnp.jinr.ru/ishepp/

Аннотация: We develop a variant of K-matrix, which includes the effect of opposite parity fermions (OPF) mixing, and apply it for description of pN partial waves S11 and P11. OPF-mixing leads to appearance of negative energy poles in K-matrix and restoration of MacDowell symmetry, relating two partial waves. Joint analysis of PWA results for S11 and P11 confirms significance of this effect. © Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike Licence.

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