; Zou Bing-Song] CAS, Inst High Energy Phys, Beijing 100049, Peoples R China
; [Dulat, S.] Xinjiang Univ, Sch Phys Sci & Technol, Urumqi 830046, Peoples R China
; [Dulat, S.
; Zou Bing-Song] CAS, Theoret Phys Ctr Sci Facil, Beijing 100049, Peoples R China
Article; Proceedings Paper
A new particle Sigma* with J(P) = 1/2(-) was predicted by unquenched quark models with its mass around the well established Sigma*(1385) with J(P) = 3/2(+) Here we re-examine some old data of the K(-)p --> Lambda pi(-)pi(+) reaction Firstly we re-fit the data for kaon beam momenta in the range of 1 0 - 1 8 GeV Secondly we study the reaction at the energies around Lambda*(1520) peak Both studies show evidence for the existence of Sigma* with J(P) = 1/2(-) around 1380 MeV Higher statistic data on relevant: reactions are needed to clarify the situation