Updated measurements of the M1 transition ψ(3686)→γηc(2S) with ηc(2S)→KK¯π

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Updated measurements of the M1 transition ψ(3686)→γηc(2S) with ηc(2S)→KK¯π. / The BESIII Collaboration ; Николаев, Иван Борисович ; Мучной, Николай Юрьевич.

в: Physical Review D, Том 109, № 3, 032004, 09.02.2024.

Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование

BibTeX

@article{3506571e4d39484aafd6e8a1328ac7f7,

title = "Updated measurements of the M1 transition ψ(3686)→γηc(2S) with ηc(2S)→KK¯π",

abstract = "Based on a data sample of (2712.4±14.3)×106ψ(3686) events collected with the BESIII detector at the BEPCII collider, the M1 transition ψ(3686)→γηc(2S) with ηc(2S)→K{\=K}π is studied, where K{\=K}π is K+K-π0 or KS0K±π∓. The mass and width of the ηc(2S) are measured to be (3637.8±0.8(stat)±0.2(syst)) MeV/c2 and (10.5±1.7(stat)±3.5(syst)) MeV, respectively. The product branching fraction B(ψ(3686)→γηc(2S))×B(ηc(2S)→K{\=K}π) is determined to be (0.97±0.06(stat)±0.09(syst))×10-5. Using B(ηc(2S)→K{\=K}π)=(1.86-0.49+0.68)%, we obtain the branching fraction of the radiative transition to be B(ψ(3686)→γηc(2S))=(5.2±0.3(stat)±0.5(syst)-1.4+1.9(extr))×10-4, where the third uncertainty is due to the quoted B(ηc(2S)→K{\=K}π). ",

author = "{BESIII Collaboration} and M. Ablikim and M. n. Achasov and Николаев, {Иван Борисович} and Мучной, {Николай Юрьевич}",

year = "2024",

month = feb,

day = "9",

doi = "10.1103/PhysRevD.109.032004",

language = "English",

volume = "109",

journal = "Physical Review D",

issn = "2470-0010",

publisher = "American Physical Society",

number = "3",

}

RIS

TY - JOUR

T1 - Updated measurements of the M1 transition ψ(3686)→γηc(2S) with ηc(2S)→KK¯π

AU - BESIII Collaboration

AU - Ablikim, M.

AU - Achasov, M. n.

AU - Николаев, Иван Борисович

AU - Мучной, Николай Юрьевич

PY - 2024/2/9

Y1 - 2024/2/9

N2 - Based on a data sample of (2712.4±14.3)×106ψ(3686) events collected with the BESIII detector at the BEPCII collider, the M1 transition ψ(3686)→γηc(2S) with ηc(2S)→KK̄π is studied, where KK̄π is K+K-π0 or KS0K±π∓. The mass and width of the ηc(2S) are measured to be (3637.8±0.8(stat)±0.2(syst)) MeV/c2 and (10.5±1.7(stat)±3.5(syst)) MeV, respectively. The product branching fraction B(ψ(3686)→γηc(2S))×B(ηc(2S)→KK̄π) is determined to be (0.97±0.06(stat)±0.09(syst))×10-5. Using B(ηc(2S)→KK̄π)=(1.86-0.49+0.68)%, we obtain the branching fraction of the radiative transition to be B(ψ(3686)→γηc(2S))=(5.2±0.3(stat)±0.5(syst)-1.4+1.9(extr))×10-4, where the third uncertainty is due to the quoted B(ηc(2S)→KK̄π).

AB - Based on a data sample of (2712.4±14.3)×106ψ(3686) events collected with the BESIII detector at the BEPCII collider, the M1 transition ψ(3686)→γηc(2S) with ηc(2S)→KK̄π is studied, where KK̄π is K+K-π0 or KS0K±π∓. The mass and width of the ηc(2S) are measured to be (3637.8±0.8(stat)±0.2(syst)) MeV/c2 and (10.5±1.7(stat)±3.5(syst)) MeV, respectively. The product branching fraction B(ψ(3686)→γηc(2S))×B(ηc(2S)→KK̄π) is determined to be (0.97±0.06(stat)±0.09(syst))×10-5. Using B(ηc(2S)→KK̄π)=(1.86-0.49+0.68)%, we obtain the branching fraction of the radiative transition to be B(ψ(3686)→γηc(2S))=(5.2±0.3(stat)±0.5(syst)-1.4+1.9(extr))×10-4, where the third uncertainty is due to the quoted B(ηc(2S)→KK̄π).

UR - https://www.scopus.com/record/display.uri?eid=2-s2.0-85185285509&origin=inward&txGid=813094ce37481a34d89f2a061c3cd738

U2 - 10.1103/PhysRevD.109.032004

DO - 10.1103/PhysRevD.109.032004

M3 - Article

VL - 109

JO - Physical Review D

JF - Physical Review D

SN - 2470-0010

IS - 3

M1 - 032004

ER -

ID: 62718702