Search for ηc(2S)→pp¯ and branching fraction measurements of χcJ→pp¯ via ψ(2S) radiative decays

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Search for ηc(2S)→pp¯ and branching fraction measurements of χcJ→pp¯ via ψ(2S) radiative decays. / BESIII Collaboration ; Николаев, Иван Борисович ; Мучной, Николай Юрьевич.

In: Physical Review D, Vol. 111, No. 1, 012003, 08.01.2025.

Research output: Contribution to journal › Article › peer-review

BibTeX

@article{929ed31135c84c9f87abf964a660a162,

title = "Search for ηc(2S)→pp¯ and branching fraction measurements of χcJ→pp¯ via ψ(2S) radiative decays",

abstract = "Using (27.12±0.14)×108 ψ(2S) events collected by the BESIII detector operating at BEPCII, we search for the decay ηc(2S)→pp¯ via the process ψ(2S)→γηc(2S) and only find a signal with a significance of 1.7σ. The upper limit of the product branching fraction at the 90% confidence level is determined to be B(ψ(2S)→γηc(2S))×B(ηc(2S)→pp¯)",

author = "{BESIII Collaboration} and M. Ablikim and M. n. Achasov and P. Adlarson and O. Afedulidis and X. c. Ai and R. Aliberti and A. Amoroso and Y. Bai and O. Bakina and I. Balossino and Y. Ban and H.-R. Bao and V. Batozskaya and K. Begzsuren and N. Berger and M. Berlowski and M. Bertani and D. Bettoni and F. Bianchi and E. Bianco and A. Bortone and I. Boyko and R. a. Briere and A. Brueggemann and H. Cai and X. Cai and A. Calcaterra and G. f. Cao and N. Cao and S. a. Cetin and X. y. Chai and J. f. Chang and G. r. Che and Николаев, {Иван Борисович} and Мучной, {Николай Юрьевич}",

year = "2025",

month = jan,

day = "8",

doi = "10.1103/PhysRevD.111.012003",

language = "English",

volume = "111",

journal = "Physical Review D",

issn = "2470-0010",

publisher = "AMER PHYSICAL SOC",

number = "1",

}

RIS

TY - JOUR

T1 - Search for ηc(2S)→pp¯ and branching fraction measurements of χcJ→pp¯ via ψ(2S) radiative decays

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 - 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 - Boyko, I.

AU - Briere, R. a.

AU - Brueggemann, A.

AU - Cai, H.

AU - Cai, X.

AU - Calcaterra, A.

AU - Cao, G. f.

AU - Cao, N.

AU - Cetin, S. a.

AU - Chai, X. y.

AU - Chang, J. f.

AU - Che, G. r.

AU - Николаев, Иван Борисович

AU - Мучной, Николай Юрьевич

PY - 2025/1/8

Y1 - 2025/1/8

N2 - Using (27.12±0.14)×108 ψ(2S) events collected by the BESIII detector operating at BEPCII, we search for the decay ηc(2S)→pp¯ via the process ψ(2S)→γηc(2S) and only find a signal with a significance of 1.7σ. The upper limit of the product branching fraction at the 90% confidence level is determined to be B(ψ(2S)→γηc(2S))×B(ηc(2S)→pp¯)

AB - Using (27.12±0.14)×108 ψ(2S) events collected by the BESIII detector operating at BEPCII, we search for the decay ηc(2S)→pp¯ via the process ψ(2S)→γηc(2S) and only find a signal with a significance of 1.7σ. The upper limit of the product branching fraction at the 90% confidence level is determined to be B(ψ(2S)→γηc(2S))×B(ηc(2S)→pp¯)

UR - https://www.scopus.com/record/display.uri?eid=2-s2.0-85217054238&origin=inward&txGid=5f62c46678f08be7919517e7ddbe7850

U2 - 10.1103/PhysRevD.111.012003

DO - 10.1103/PhysRevD.111.012003

M3 - Article

VL - 111

JO - Physical Review D

JF - Physical Review D

SN - 2470-0010

IS - 1

M1 - 012003

ER -

ID: 64693547