Standard

Evidence for the ηc(2S)→π+π−η decay. / BESIII Collaboration ; Мучной, Николай Юрьевич; Николаев, Иван Борисович.

In: Physical Review D, Vol. 107, No. 5, 052007, 17.03.2023.

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

Harvard

BESIII Collaboration, Мучной, НЮ & Николаев, ИБ 2023, 'Evidence for the ηc(2S)→π+π−η decay', Physical Review D, vol. 107, no. 5, 052007. https://doi.org/10.1103/PhysRevD.107.052007

APA

BESIII Collaboration, Мучной, Н. Ю., & Николаев, И. Б. (2023). Evidence for the ηc(2S)→π+π−η decay. Physical Review D, 107(5), [052007]. https://doi.org/10.1103/PhysRevD.107.052007

Vancouver

BESIII Collaboration, Мучной НЮ, Николаев ИБ. Evidence for the ηc(2S)→π+π−η decay. Physical Review D. 2023 Mar 17;107(5):052007. doi: 10.1103/PhysRevD.107.052007

Author

BESIII Collaboration ; Мучной, Николай Юрьевич ; Николаев, Иван Борисович. / Evidence for the ηc(2S)→π+π−η decay. In: Physical Review D. 2023 ; Vol. 107, No. 5.

BibTeX

@article{5019266cf05049d0b3d8f27946b7bb13,
title = "Evidence for the ηc(2S)→π+π−η decay",
abstract = "The decay ηc(2S)→π+π-η is searched for through the radiative transition ψ(3686)→γηc(2S) using 448 million ψ(3686) events accumulated at the BESIII detector. The first evidence of ηc(2S)→π+π-η is found with a statistical significance of 3.5σ. The product of the branching fractions of ψ(3686)→γηc(2S) and ηc(2S)→π+π-η is measured to be Br(ψ(3686)→γηc(2S))×Br(ηc(2S)→π+π-η)=(2.97±0.81±0.26)×10-6, where the first uncertainty is statistical and the second one is systematic. The branching fraction of the decay ηc(2S)→π+π-η is determined to be Br(ηc(2S)→π+π-η)=(42.4±11.6±3.8±30.3)×10-4, where the third uncertainty is transferred from the uncertainty of the branching fraction of ψ(3686)→γηc(2S).",
author = "{BESIII Collaboration} and M. Ablikim and M. n. Achasov and Мучной, {Николай Юрьевич} and Николаев, {Иван Борисович}",
note = "Evidence for theηc(2S)→π+π−ηdecay / BESIII Collaboration // Physical Review D. – 2023. – Vol. 107, No. 5. – P. 052007. – DOI 10.1103/physrevd.107.052007.",
year = "2023",
month = mar,
day = "17",
doi = "10.1103/PhysRevD.107.052007",
language = "English",
volume = "107",
journal = "Physical Review D",
issn = "2470-0010",
publisher = "American Physical Society",
number = "5",

}

RIS

TY - JOUR

T1 - Evidence for the ηc(2S)→π+π−η decay

AU - BESIII Collaboration

AU - Ablikim, M.

AU - Achasov, M. n.

AU - Мучной, Николай Юрьевич

AU - Николаев, Иван Борисович

N1 - Evidence for theηc(2S)→π+π−ηdecay / BESIII Collaboration // Physical Review D. – 2023. – Vol. 107, No. 5. – P. 052007. – DOI 10.1103/physrevd.107.052007.

PY - 2023/3/17

Y1 - 2023/3/17

N2 - The decay ηc(2S)→π+π-η is searched for through the radiative transition ψ(3686)→γηc(2S) using 448 million ψ(3686) events accumulated at the BESIII detector. The first evidence of ηc(2S)→π+π-η is found with a statistical significance of 3.5σ. The product of the branching fractions of ψ(3686)→γηc(2S) and ηc(2S)→π+π-η is measured to be Br(ψ(3686)→γηc(2S))×Br(ηc(2S)→π+π-η)=(2.97±0.81±0.26)×10-6, where the first uncertainty is statistical and the second one is systematic. The branching fraction of the decay ηc(2S)→π+π-η is determined to be Br(ηc(2S)→π+π-η)=(42.4±11.6±3.8±30.3)×10-4, where the third uncertainty is transferred from the uncertainty of the branching fraction of ψ(3686)→γηc(2S).

AB - The decay ηc(2S)→π+π-η is searched for through the radiative transition ψ(3686)→γηc(2S) using 448 million ψ(3686) events accumulated at the BESIII detector. The first evidence of ηc(2S)→π+π-η is found with a statistical significance of 3.5σ. The product of the branching fractions of ψ(3686)→γηc(2S) and ηc(2S)→π+π-η is measured to be Br(ψ(3686)→γηc(2S))×Br(ηc(2S)→π+π-η)=(2.97±0.81±0.26)×10-6, where the first uncertainty is statistical and the second one is systematic. The branching fraction of the decay ηc(2S)→π+π-η is determined to be Br(ηc(2S)→π+π-η)=(42.4±11.6±3.8±30.3)×10-4, where the third uncertainty is transferred from the uncertainty of the branching fraction of ψ(3686)→γηc(2S).

UR - https://www.elibrary.ru/item.asp?id=61201909

UR - https://www.mendeley.com/catalogue/882855aa-6623-3569-a81d-ae6522a15a6b/

U2 - 10.1103/PhysRevD.107.052007

DO - 10.1103/PhysRevD.107.052007

M3 - Article

VL - 107

JO - Physical Review D

JF - Physical Review D

SN - 2470-0010

IS - 5

M1 - 052007

ER -

ID: 68345873