TY - JOUR
T1 - Study of excited Ξ states in ψ (3686) →K- Λ Ξ ¯ ++ c. c.
AU - Ablikim, M.
AU - Achasov, M. N.
AU - Adlarson, P.
AU - Aliberti, R.
AU - Kabana, S.
AU - The BESIII collaboration
N1 - Publisher Copyright:
© 2024 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the "https://creativecommons.org/licenses/by/4.0/"Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Funded by SCOAP
PY - 2024/4/1
Y1 - 2024/4/1
N2 - Based on a sample of (448.1±2.9)×106 ψ(3686) events collected with the BESIII detector at BEPCII, the decays of ψ(3686)→K-ΛΞ¯++c.c. with Ξ¯+→Λ¯π+, Λ¯→p¯π+ are studied. We investigate the two excited resonances, Ξ(1690)- and Ξ(1820)-, which are each observed with large significance (≫10σ) in the K-Λ invariant mass distributions. A partial wave analysis is performed, and the spin-parities of Ξ(1690)- and Ξ(1820)- are measured to be 12- and 32-, respectively. The masses, widths, and product branching fractions of Ξ(1690)- and Ξ(1820)- are also measured.
AB - Based on a sample of (448.1±2.9)×106 ψ(3686) events collected with the BESIII detector at BEPCII, the decays of ψ(3686)→K-ΛΞ¯++c.c. with Ξ¯+→Λ¯π+, Λ¯→p¯π+ are studied. We investigate the two excited resonances, Ξ(1690)- and Ξ(1820)-, which are each observed with large significance (≫10σ) in the K-Λ invariant mass distributions. A partial wave analysis is performed, and the spin-parities of Ξ(1690)- and Ξ(1820)- are measured to be 12- and 32-, respectively. The masses, widths, and product branching fractions of Ξ(1690)- and Ξ(1820)- are also measured.
UR - https://www.scopus.com/pages/publications/85191564851
U2 - 10.1103/PhysRevD.109.072008
DO - 10.1103/PhysRevD.109.072008
M3 - Article
AN - SCOPUS:85191564851
SN - 2470-0010
VL - 109
JO - Physical Review D
JF - Physical Review D
IS - 7
M1 - 072008
ER -