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Amplitude analysis of $$ \psi (3686)\to \gamma {K}_S^0{K}_S^0 $$. / The BESIII Collaboration ; Мучной, Николай Юрьевич; Николаев, Иван Борисович.
в: Journal of High Energy Physics, Том 2025, № 10, 81, 09.10.2025.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Amplitude analysis of $$ \psi (3686)\to \gamma {K}_S^0{K}_S^0 $$
AU - BESIII Collaboration
AU - Ablikim, M.
AU - Achasov, M. n.
AU - Мучной, Николай Юрьевич
AU - Николаев, Иван Борисович
N1 - Amplitude analysis of $$ \psi (3686)\to \gamma {K}_S^0{K}_S^0 $$ / The BESIII collaboration // Journal of High Energy Physics. – 2025. – Vol. 2025, No. 8. – P. 81. – DOI 10.1007/JHEP10(2025)081
PY - 2025/10/9
Y1 - 2025/10/9
N2 - Using (2712 ± 14) × 106 ψ(3686) events collected with the BESIII detector, we perform the first amplitude analysis of the radiative decay within the mass region GeV/c2. Employing a one-channel K-matrix approach for the description of the dynamics of the system, the data sample is well described with four poles for the f0-wave and three poles for the f2-wave. The determined pole positions are consistent with those of well-established resonance states. The observed f0 and f2 states are found to be in agreement with those produced in radiative J/ψ decays. The production behaviors of f0 and f2 poles in are qualified with their residues and the converted branching fractions. By comparing with decay, the ratios are determined, which provides crucial experimental inputs on the internal structure of the f0,2 states, especially their potential mixing with glueball components.
AB - Using (2712 ± 14) × 106 ψ(3686) events collected with the BESIII detector, we perform the first amplitude analysis of the radiative decay within the mass region GeV/c2. Employing a one-channel K-matrix approach for the description of the dynamics of the system, the data sample is well described with four poles for the f0-wave and three poles for the f2-wave. The determined pole positions are consistent with those of well-established resonance states. The observed f0 and f2 states are found to be in agreement with those produced in radiative J/ψ decays. The production behaviors of f0 and f2 poles in are qualified with their residues and the converted branching fractions. By comparing with decay, the ratios are determined, which provides crucial experimental inputs on the internal structure of the f0,2 states, especially their potential mixing with glueball components.
UR - https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=105018633275&origin=inward
U2 - 10.1007/JHEP10(2025)081
DO - 10.1007/JHEP10(2025)081
M3 - Article
VL - 2025
JO - Journal of High Energy Physics
JF - Journal of High Energy Physics
SN - 1029-8479
IS - 10
M1 - 81
ER -
ID: 70967804