Research output: Contribution to journal › Article › peer-review
Cross section measurement of e+e−→ηψ(2S) and search for e+e−→ηX˜(3872). / BESIII Collaboration ; Николаев, Иван Борисович; Мучной, Николай Юрьевич.
In: Physical Review D, Vol. 109, No. 11, 112004, 05.12.2024.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Cross section measurement of e+e−→ηψ(2S) and search for e+e−→ηX˜(3872)
AU - BESIII Collaboration
AU - Ablikim, M.
AU - Achasov, M. n.
AU - Adlarson, P.
AU - Afedulidis, O.
AU - Ai, X. c.
AU - Aliberti, R.
AU - Amoroso, A.
AU - An, Q.
AU - Bai, Y.
AU - Bakina, O.
AU - Balossino, I.
AU - Ban, Y.
AU - Bao, H.-R.
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 - Николаев, Иван Борисович
AU - Мучной, Николай Юрьевич
PY - 2024/12/5
Y1 - 2024/12/5
N2 - The energy-dependent cross section for e+e-→ηψ(2S) is measured at 18 center of mass energies from 4.288 to 4.951 GeV using the BESIII detector. Using the same data samples, we also perform the first search for the reaction e+e-→ηX(3872), but no evidence is found for the X(3872) in the π+π-J/ψ mass distribution. At each of the 18 center of mass energies, upper limits at the 90% confidence level on the cross section for e+e-→ηψ(2S) and on the product of the e+e-→ηX(3872) cross section with the branching fraction of X(3872)→π+π-J/ψ are reported.
AB - The energy-dependent cross section for e+e-→ηψ(2S) is measured at 18 center of mass energies from 4.288 to 4.951 GeV using the BESIII detector. Using the same data samples, we also perform the first search for the reaction e+e-→ηX(3872), but no evidence is found for the X(3872) in the π+π-J/ψ mass distribution. At each of the 18 center of mass energies, upper limits at the 90% confidence level on the cross section for e+e-→ηψ(2S) and on the product of the e+e-→ηX(3872) cross section with the branching fraction of X(3872)→π+π-J/ψ are reported.
UR - https://www.scopus.com/record/display.uri?eid=2-s2.0-85195830525&origin=inward&txGid=79c10e693b9e38060c8226075078be38
U2 - 10.1103/PhysRevD.109.112004
DO - 10.1103/PhysRevD.109.112004
M3 - Article
VL - 109
JO - Physical Review D
JF - Physical Review D
SN - 2470-0010
IS - 11
M1 - 112004
ER -
ID: 62714792