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Partial-wave analysis of J/ψ→γγϕ. / BESIII Collaboration ; Николаев, Иван Борисович; Мучной, Николай Юрьевич.
In: Physical Review D, Vol. 111, No. 5, 052011, 25.03.2025.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Partial-wave analysis of J/ψ→γγϕ
AU - BESIII Collaboration
AU - Ablikim, M.
AU - Achasov, M. n.
AU - Adlarson, P.
AU - Ai, X. c.
AU - Aliberti, R.
AU - Amoroso, A.
AU - An, M. r.
AU - An, Q.
AU - Bai, Y.
AU - Bakina, O.
AU - Balossino, I.
AU - Ban, Y.
AU - Batozskaya, V.
AU - Begzsuren, K.
AU - Berger, N.
AU - Berlowski, M.
AU - Bertani, M.
AU - Bettoni, D.
AU - Bianchi, F.
AU - Bianco, E.
AU - Bortone, A.
AU - Briere, R. a.
AU - Brueggemann, A.
AU - Cai, H.
AU - Cai, X.
AU - Calcaterra, A.
AU - Cao, G. f.
AU - Cao, N.
AU - Николаев, Иван Борисович
AU - Мучной, Николай Юрьевич
N1 - Partial-wave analysis of J/ψ→γγϕ / M. Ablikim, M. N. Achasov, P. Adlarson [et al.] // Physical Review D. – 2025. – Vol. 111, No. 5. – P. 052011. – DOI 10.1103/physrevd.111.052011.
PY - 2025/3/25
Y1 - 2025/3/25
N2 - Using a sample of ∼1010 J/ψ events collected by the BESIII detector at the BEPCII collider, a partial-wave analysis of the decay γγφ is performed to investigate the intermediate resonances in J/ψ→γR, R→γφ. Resonances including f1(1285), η(1405), f1(1420), f1(1510), f2(1525), X(1835), f2(1950), f2(2010), f0(2200), and ηc have been detected with statistical significance greater than 5σ. The product branching fractions B(J/ψ→γR,R→γφ) are reported, and the resonance parameters of η(1405) and X(1835) have been precisely determined. It seems likely that η(1405) and X(1835) act as the first - and second - excited states of η′, respectively. The observation of ηc→γφ holds great significance for the in depth study of charmonium properties. No evidence of η(1295), η1(1855) or X(2370) is found. The measured upper limits of relevant branching fraction products do not conflict with theoretical expectations for X(2370) as a pseudoscalar glueball and η1(1855) as a hybrid state.
AB - Using a sample of ∼1010 J/ψ events collected by the BESIII detector at the BEPCII collider, a partial-wave analysis of the decay γγφ is performed to investigate the intermediate resonances in J/ψ→γR, R→γφ. Resonances including f1(1285), η(1405), f1(1420), f1(1510), f2(1525), X(1835), f2(1950), f2(2010), f0(2200), and ηc have been detected with statistical significance greater than 5σ. The product branching fractions B(J/ψ→γR,R→γφ) are reported, and the resonance parameters of η(1405) and X(1835) have been precisely determined. It seems likely that η(1405) and X(1835) act as the first - and second - excited states of η′, respectively. The observation of ηc→γφ holds great significance for the in depth study of charmonium properties. No evidence of η(1295), η1(1855) or X(2370) is found. The measured upper limits of relevant branching fraction products do not conflict with theoretical expectations for X(2370) as a pseudoscalar glueball and η1(1855) as a hybrid state.
UR - https://www.scopus.com/record/display.uri?eid=2-s2.0-105001195804&origin=inward&txGid=94055c64ef942679f965318fe8e40e71
UR - https://www.mendeley.com/catalogue/f31d990c-23fb-335a-bef4-bcf79f7192af/
UR - https://elibrary.ru/item.asp?id=81951020
U2 - 10.1103/PhysRevD.111.052011
DO - 10.1103/PhysRevD.111.052011
M3 - Article
VL - 111
JO - Physical Review D
JF - Physical Review D
SN - 2470-0010
IS - 5
M1 - 052011
ER -
ID: 65142782