000 02078nab a2200313 c 4500
001 vtls000548772
003 RU-ToGU
005 20210907025920.0
007 cr |
008 181202|2015 xxu s a eng dd
024 7 _a10.1103/PhysRevD.91.112008
_2doi
035 _ato000548772
040 _aRU-ToGU
_brus
_cRU-ToGU
245 1 0 _aStudy of χcJ decaying into фK*(892) K
_cM. Ablikim, M. N. Achasov, X. C. Ai [et.al.]
520 3 _aUsing a data sample of 106 million ψ(3686) events collected with the BESIII detector operated at the BEPCII storage ring, we study for the first time the decays χcJ→ϕK0SKπ∓ and χcJ→ϕK+K−π0 in the E1 radiative transition ψ(3686)→γχcJ. The decays are dominated by the three-body decay χcJ→ϕK∗(892)K. We measure branching fractions for this reaction via the neutral and charged K∗(892) and find them consistent with each other within the expectation of isospin symmetry. In the KKπ invariant mass distribution, a structure near the K∗(892)K mass threshold is observed, and the corresponding mass and width are measured to be 14124(stat)8(sys)  MeV/c2 and Γ=8412(stat)40(sys)  MeV, respectively. The observed state favors an assignment to the h1(1380), considering its possible JPC and comparing its mass, width and decay mode to those reported in the Particle Data Group.
653 _aBESIII, детектор
653 _aBEPCII, коллайдер
653 _aизоспин
655 4 _aстатьи в журналах
_9681159
700 1 _aAblikim, M.
_9117568
700 1 _aAi, X. C.
_9117570
700 1 _aChelkov, G. A.
_996983
700 1 _aAchasov, M. N.
_9117569
773 0 _tPhysical Review D
_d2015
_gVol. 91, № 11. P. 112008-1-112008-16
_x1550-7998
852 4 _aRU-ToGU
856 7 _uhttp://vital.lib.tsu.ru/vital/access/manager/Repository/vtls:000548772
908 _aстатья
999 _c406423