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Using 448.1 x 10(6) psi(3686) decays collected with the BESIII detector at the BEPCII e(+)e(-) storage rings, the branching fractions and angular distributions of the decays chi(cJ) -> Xi(-)(Xi) over bar (+) and Xi(0)(Xi) over bar (0) ( J = 0, 1, 2) are measured based on a partial-reconstruction technique. The decays chi(c1) -> Xi(0)(Xi) over bar (0) and chi(c2) -> Xi(0)(Xi) over bar (0) are observed for the first time with statistical significances of 7 sigma and 15 sigma, respectively. The results of this analysis are in good agreement with previous measurements and have significantly improved precision.

Study of the processes chi(cJ) -> Xi(-)(Xi)over-bar(+) and Xi(0)(Xi)over-bar(0)

Amoroso, A;Bianchi, F;Bortone, A;Destefanis, M;De Mori, F;Fava, L;Greco, M;Hu, JF;Lavezzi, L;Maggiora, M;Marcello, S;Rivetti, A;Sosio, S;Spataro, S;Yan, L;
2022-01-01

Abstract

Using 448.1 x 10(6) psi(3686) decays collected with the BESIII detector at the BEPCII e(+)e(-) storage rings, the branching fractions and angular distributions of the decays chi(cJ) -> Xi(-)(Xi) over bar (+) and Xi(0)(Xi) over bar (0) ( J = 0, 1, 2) are measured based on a partial-reconstruction technique. The decays chi(c1) -> Xi(0)(Xi) over bar (0) and chi(c2) -> Xi(0)(Xi) over bar (0) are observed for the first time with statistical significances of 7 sigma and 15 sigma, respectively. The results of this analysis are in good agreement with previous measurements and have significantly improved precision.
2022
2022
6
0
17
Branching fraction; e(+)-e(-) Experiments; QCD; Quarkonium
Ablikim, M; Achasov, MN; Adlarson, P; Ahmed, S; Albrecht, M; Aliberti, R; Amoroso, A; An, MR; An, Q; Bai, XH; Bai, Y; Bakina, O; Ferroli, RB; Balossino, I; Ban, Y; Begzsuren, K; Berger, N; Bertani, M; Bettoni, D; Bianchi, F; Bloms, J; Bortone, A; Boyko, I; Briere, RA; Cai, H; Cai, X; Calcaterra, A; Cao, GF; Cao, N; Cetin, SA; Chang, JF; Chang, WL; Chelkov, G; Chen, DY; Chen, G; Chen, HS; Chen, ML; Chen, SJ; Chen, XR; Chen, YB; Chen, ZJ; Cheng, WS; Cibinetto, G; Cossio, F; Cui, XF; Dai, HL; Dai, XC; Dbeyssi, A; de Boer, RE; Dedovich, D; Deng, ZY; Denig, A; Denysenko, I; Destefanis, M; De Mori, F; Ding, Y; Dong, C; Dong, J; Dong, LY; Dong, MY; Dong, X; Du, SX; Fan, YL; Fang, J; Fang, SS; Fang, Y; Farinelli, R; Fava, L; Feldbauer, F; Felici, G; Feng, CQ; Feng, JH; Fritsch, M; Fu, CD; Gao, Y; Gao, Y; Gao, YG; Garzia, I; Ge, PT; Geng, C; Gersabeck, EM; Gilman, A; Goetzen, K; Gong, L; Gong, WX; Gradl, W; Greco, M; Gu, LM; Gu, MH; Guan, CY; Guo, AQ; Guo, AQ; Guo, LB; Guo, RP; Guo, YP; Guskov, A; 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Zhu, ZA; Zou, BS; Zou, JH
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2318/1874690
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