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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.

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BESIII Collaboration, Николаев ИБ, Мучной НЮ. Search for ηc(2S)→pp¯ and branching fraction measurements of χcJ→pp¯ via ψ(2S) radiative decays. Physical Review D. 2025 Jan 8;111(1):012003. doi: 10.1103/PhysRevD.111.012003

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@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 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 = "American Physical Society",
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 - 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

UR - https://elibrary.ru/item.asp?id=80969530

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