The three-body kaonic system KKK is studied in the framework of a singlechannel potential nonrelativistic model using the method of hyperspherical harmonics in momentum representation. Calculations are performed with two sets of KK and KK potentials. A quasibound state for the KK _K system with spin-parity 0− and isospin 1/2 is found below the three-kaon threshold.
Kezerashvili, Roman Ya. and Tsiklauri, Shalva M., "Study of the KKK system in hyperspherical formalism" (2016). CUNY Academic Works.