Study of χcJ decaying into фK*(892) K¯

Using 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→ϕK0SK±π∓ 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¯....

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Bibliographic Details
Published in:Physical Review D Vol. 91, № 11. P. 112008-1-112008-16
Other Authors: Ablikim, M., Ai, X. C., Chelkov, G. A., Achasov, M. N.
Format: Article
Language:English
Subjects:
Online Access:http://vital.lib.tsu.ru/vital/access/manager/Repository/vtls:000548772
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024 7 |a 10.1103/PhysRevD.91.112008  |2 doi 
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245 1 0 |a Study of χcJ decaying into фK*(892) K¯  |c M. Ablikim, M. N. Achasov, X. C. Ai [et.al.] 
520 3 |a Using 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→ϕK0SK±π∓ 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 KK¯π invariant mass distribution, a structure near the K∗(892)K¯ mass threshold is observed, and the corresponding mass and width are measured to be 1412±4(stat)±8(sys)  MeV/c2 and Γ=84±12(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 |a BESIII, детектор 
653 |a BEPCII, коллайдер 
653 |a изоспин 
655 4 |a статьи в журналах  |9 879358 
700 1 |a Ablikim, M.  |9 117568 
700 1 |a Ai, X. C.  |9 117570 
700 1 |a Chelkov, G. A.  |9 96983 
700 1 |a Achasov, M. N.  |9 117569 
773 0 |t Physical Review D  |d 2015  |g Vol. 91, № 11. P. 112008-1-112008-16  |x 1550-7998 
852 4 |a RU-ToGU 
856 7 |u http://vital.lib.tsu.ru/vital/access/manager/Repository/vtls:000548772 
856 |y Перейти в каталог НБ ТГУ  |u https://koha.lib.tsu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=406423 
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999 |c 406423  |d 406423