Roy-Steiner equations for piN scattering

Autor:	J. Ruiz de Elvira, Bastian Kubis, Ulf-G. Meißner, Martin Hoferichter, Christoph Ditsche
Jazyk:	angličtina
Rok vydání:	2014
Předmět:	Set (abstract data type) Physics Theoretical physics System of integral equations Scattering Subthreshold conduction 530 Physics QC1-999 Phase (waves) System of linear equations
Zdroj:	EPJ Web Conf. Ruiz de Elvira, J.; Ditsche, C.; Hoferichter, Martin; Kubis, B.; Meissner, U.G. (9 June 2014). Roy-Steiner equations for piN scattering. EPJ web of conferences, 73(05002), 05002. EDP Sciences 10.1051/epjconf/20147305002 EPJ Web of Conferences, Vol 73, p 05002 (2014)
DOI:	10.7892/boris.60241
Popis:	In this talk, we present a coupled system of integral equations for the πN → πN (s-channel) and ππ → N̅N (t-channel) lowest partial waves, derived from Roy–Steiner equations for pion–nucleon scattering. After giving a brief overview of this system of equations, we present the solution of the t-channel sub-problem by means of Muskhelishvili–Omnès techniques, and solve the s-channel sub-problem after finding a set of phase shifts and subthreshold parameters which satisfy the Roy–Steiner equations.
Databáze:	OpenAIRE
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