Çetin, Serkant Ali2021-01-192021-01-192019-03-222470-00292470-0010https://hdl.handle.net/11411/3137https://doi.org/10.1103/PhysRevD.99.052008By analyzing (448.1 +/- 2.9) x 10(6) psi(3686) events collected with the BESIII detector operating at the BEPCII collider, the decays of chi(c)(J) -> 4K(S)(0) (J = 0, 1, 2) are observed for the first time with statistical significances of 26.5 sigma, 5.9 sigma and 11.4 sigma, respectively. The product branching fractions of psi(3686) -> gamma chi(cJ), chi(cJ) -> 4K(S)(0 )are presented, and the branching fractions of chi(cJ) -> 4K(S)(0) decays are determined to be B-chi c0 -> 4KS0 = (5.76 +/- 0.34 +/- 0.38) x 10(-4), B-chi c1 -> 4KS0 = (0.35 +/- 0.09 +/- 0.03) x 10(-4) and B-chi c2 -> 4KS0( )= (1.14 +/- 0.15 +/- 0.08) x 10(-4), where the first uncertainties are statistical and the second are systematic, respectively.eninfo:eu-repo/semantics/openAccessDECAYSCHARMONIUMSTATESANNIHILATIONOCTETArticle2-s2.0-8506440088210.1103/PhysRevD.99.052008Q1WOS:000462907300003