2(2S+1)-Component Model and its Connection with Other Field Theories

Abstract

This talk presents the review of forgotten but attractive formalism proposed by Joos and Weinberg in the sixties for description of high-spin particles. Problems raised in the recent works [Ahluwalia {\it et al.}] are discussed. New results obtained by the author in his preceding papers ["Hadronic J.", 1993, v. 16, No. 5, pp. 423-428; No. 6, pp. 459-467; Preprints IFUNAM FT-93-19, 24, 35] are reported. In {\it Appendix}, bibliography of publications related with mentioned $2(2S+1)$- component formalism is presented.

Comments: Talk presented at the ELAF'93, Mar del Plata. July 5-16,1993 and at the XVII Symp. on Nucl.Phys., Oaxtepec.Jan. 4-7,1994. LaTeX file, 16 pp. Preprint IFUNAM FT-94-36