▁possible ▁t etra qu ark . ▁In ▁ 2 0 0 5 ▁the ▁Ba Bar ▁collaboration ▁found ▁Y ( 4 2 6 0 ) ▁from ▁Initial ▁state ▁radiation ▁as ▁well ▁in ▁ π + ▁ π - ▁J / ψ ▁production . ▁Again ▁a ▁char mon ium - like ▁particle ▁with ▁a ▁large ▁coupling ▁to ▁final ▁states ▁without ▁open ▁charm ▁mes ons . ▁Cont in ued ▁search ▁shows ▁a ▁lack ▁of ▁an ▁observation ▁in ▁the ▁inclus ive ▁had ron ic ▁cross ▁section . ▁ ▁The ▁B ES ▁III ▁collaboration ▁in ▁ 2 0 1 2 ▁started ▁taking ▁data ▁at ▁ 4 2 6 0 ▁Me V ▁and ▁could ▁observe ▁direct ▁production ▁instead ▁of ▁B ▁decay ▁or ▁Initial ▁State ▁Rad iation ▁to ▁continue ▁the ▁study ▁with ▁a ▁higher ▁lum inos ity . ▁The ▁Z c ( 3 9 0 0 ) ▁state ▁was ▁discovered ▁at ▁B ES III ▁in ▁ 2 0 1 3 . ▁ ▁See ▁also ▁ ▁Ex otic ▁mes on ▁ ▁Z ( 4 4 3 0 ) ▁ ▁References ▁ ▁Category : Part icle ▁physics <0x0A> </s> ▁Le pid og ry ll us ▁is ▁a ▁genus ▁of ▁cr ick ets , ▁sometimes ▁known ▁as ▁m ott led ▁field ▁cr ick ets , ▁in ▁the ▁family ▁G ry ll idae ▁and ▁tribe ▁Mod ic og ry ll ini . ▁ ▁Species ▁have ▁been ▁found ▁in ▁Australia ▁and ▁Vietnam . ▁ ▁Species ▁ ▁Le pid og ry ll us ▁includes ▁the ▁following ▁species : ▁Le pid og ry ll us ▁bad ik