By analyzing (27.12 +/- 0.14) x 10(8) Psi(3686) events collected with the BESIII detector operating at the BEPCII collider, the decay processes X-cJ -> 3( K+ K- ) (J = 0, 1, 2) are observed for the first time with statistical significances of 8.2 sigma, 8.1 sigma, and 12.4 sigma, respectively. The product branching fractions of Psi(3686) -> gamma X-cJ , X-cJ -> 3( K+ K- ) are presented and the branching fractions of X-cJ -> 3( K+ K- ) decays are determined to be B-Xc0 -> 3( K+ K- ) = (10.7 +/- 1.8 +/- 1.1) x 10(-6), B-Xc1 -> 3( K+ K- ) = (4.2 +/- 0.9 +/- 0.5) x 10(-6), and B-Xc2 -> 3( K+ K- ) 1/4 (7.2 +/- 1.1 +/- 0.8) x 10(-6), where the first uncertainties are statistical and the second are systematic.

Observation of χcJ →3 (K+K-)

Amoroso, A.;Bianchi, F.;Destefanis, M.;De Mori, F.;Greco, M.;Maggiora, M.;Marcello, S.;Sosio, S.;Spataro, S.;
2024-01-01

Abstract

By analyzing (27.12 +/- 0.14) x 10(8) Psi(3686) events collected with the BESIII detector operating at the BEPCII collider, the decay processes X-cJ -> 3( K+ K- ) (J = 0, 1, 2) are observed for the first time with statistical significances of 8.2 sigma, 8.1 sigma, and 12.4 sigma, respectively. The product branching fractions of Psi(3686) -> gamma X-cJ , X-cJ -> 3( K+ K- ) are presented and the branching fractions of X-cJ -> 3( K+ K- ) decays are determined to be B-Xc0 -> 3( K+ K- ) = (10.7 +/- 1.8 +/- 1.1) x 10(-6), B-Xc1 -> 3( K+ K- ) = (4.2 +/- 0.9 +/- 0.5) x 10(-6), and B-Xc2 -> 3( K+ K- ) 1/4 (7.2 +/- 1.1 +/- 0.8) x 10(-6), where the first uncertainties are statistical and the second are systematic.
2024
109
7
1
9
Ablikim, M.; Achasov, M. N.; Adlarson, P.; Afedulidis, O.; Ai, X. C.; Aliberti, R.; Amoroso, A.; An, Q.; Bai, Y.; Bakina, O.; Balossino, I.; Ban, Y.; ...espandi
File in questo prodotto:
File Dimensione Formato  
PhysRevD.109.072016.pdf

Accesso aperto

Dimensione 244.11 kB
Formato Adobe PDF
244.11 kB Adobe PDF Visualizza/Apri

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2318/2015191
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 0
  • ???jsp.display-item.citation.isi??? 0
social impact