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Observation of an Axial-Vector State in the Study of the Decay ψ(3686)→ϕηη′. / The BESIII Collaboration ; Николаев, Иван Борисович; Ачасов, Михаил Николаевич и др.

в: Physical Review Letters, Том 134, № 19, 191901, 12.05.2025, стр. 191901.

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

Harvard

The BESIII Collaboration, Николаев, ИБ, Ачасов, МН & Мучной, НЮ 2025, 'Observation of an Axial-Vector State in the Study of the Decay ψ(3686)→ϕηη′', Physical Review Letters, Том. 134, № 19, 191901, стр. 191901. https://doi.org/10.1103/PhysRevLett.134.191901

APA

The BESIII Collaboration, Николаев, И. Б., Ачасов, М. Н., & Мучной, Н. Ю. (2025). Observation of an Axial-Vector State in the Study of the Decay ψ(3686)→ϕηη′. Physical Review Letters, 134(19), 191901. [191901]. https://doi.org/10.1103/PhysRevLett.134.191901

Vancouver

The BESIII Collaboration, Николаев ИБ, Ачасов МН, Мучной НЮ. Observation of an Axial-Vector State in the Study of the Decay ψ(3686)→ϕηη′. Physical Review Letters. 2025 май 12;134(19):191901. 191901. doi: 10.1103/PhysRevLett.134.191901

Author

The BESIII Collaboration ; Николаев, Иван Борисович ; Ачасов, Михаил Николаевич и др. / Observation of an Axial-Vector State in the Study of the Decay ψ(3686)→ϕηη′. в: Physical Review Letters. 2025 ; Том 134, № 19. стр. 191901.

BibTeX

@article{c9d9bb799a0b44b3a524f275327d8348,
title = "Observation of an Axial-Vector State in the Study of the Decay ψ(3686)→ϕηη′",
abstract = "Using (2712.4±14.3)×10^{6} ψ(3686) events collected with the BESIII detector at BEPCII, a partial wave analysis of the decay ψ(3686)→ϕηη^{'} is performed with the covariant tensor approach. In addition to the established states h_{1}(1900) and ϕ(2170), an axial-vector state with a mass near 2.3  GeV/c^{2} is observed for the first time. Its mass and width are measured to be 2316±9_{stat}±30_{syst}  MeV/c^{2} and 89±15_{stat}±26_{syst}  MeV, respectively. The product branching fractions of B[ψ(3686)→X(2300)η^{'}]B[X(2300)→ϕη] and B[ψ(3686)→X(2300)η]B[X(2300)→ϕη^{'}] are determined to be (4.8±1.3_{stat}±0.7_{syst})×10^{-6} and (2.2±0.7_{stat}±0.7_{syst})×10^{-6}, respectively. The branching fraction B[ψ(3686)→ϕηη^{'}] is measured for the first time to be (3.14±0.17_{stat}±0.24_{syst})×10^{-5}. The first uncertainties are statistical and the second are systematic.",
author = "{BESIII Collaboration} and M. Ablikim and Николаев, {Иван Борисович} and Ачасов, {Михаил Николаевич} and Мучной, {Николай Юрьевич}",
note = "Observation of an Axial-Vector State in the Study of the Decay ψ(3686)→ϕηη′ / The BESIII Collaboration // Physical Review Letters. – 2025. – Vol. 134, No. 19. – P. 191901. – DOI 10.1103/physrevlett.134.191901.",
year = "2025",
month = may,
day = "12",
doi = "10.1103/PhysRevLett.134.191901",
language = "English",
volume = "134",
pages = "191901",
journal = "Physical Review Letters",
issn = "0031-9007",
publisher = "American Physical Society",
number = "19",

}

RIS

TY - JOUR

T1 - Observation of an Axial-Vector State in the Study of the Decay ψ(3686)→ϕηη′

AU - BESIII Collaboration

AU - Ablikim, M.

AU - Николаев, Иван Борисович

AU - Ачасов, Михаил Николаевич

AU - Мучной, Николай Юрьевич

N1 - Observation of an Axial-Vector State in the Study of the Decay ψ(3686)→ϕηη′ / The BESIII Collaboration // Physical Review Letters. – 2025. – Vol. 134, No. 19. – P. 191901. – DOI 10.1103/physrevlett.134.191901.

PY - 2025/5/12

Y1 - 2025/5/12

N2 - Using (2712.4±14.3)×10^{6} ψ(3686) events collected with the BESIII detector at BEPCII, a partial wave analysis of the decay ψ(3686)→ϕηη^{'} is performed with the covariant tensor approach. In addition to the established states h_{1}(1900) and ϕ(2170), an axial-vector state with a mass near 2.3  GeV/c^{2} is observed for the first time. Its mass and width are measured to be 2316±9_{stat}±30_{syst}  MeV/c^{2} and 89±15_{stat}±26_{syst}  MeV, respectively. The product branching fractions of B[ψ(3686)→X(2300)η^{'}]B[X(2300)→ϕη] and B[ψ(3686)→X(2300)η]B[X(2300)→ϕη^{'}] are determined to be (4.8±1.3_{stat}±0.7_{syst})×10^{-6} and (2.2±0.7_{stat}±0.7_{syst})×10^{-6}, respectively. The branching fraction B[ψ(3686)→ϕηη^{'}] is measured for the first time to be (3.14±0.17_{stat}±0.24_{syst})×10^{-5}. The first uncertainties are statistical and the second are systematic.

AB - Using (2712.4±14.3)×10^{6} ψ(3686) events collected with the BESIII detector at BEPCII, a partial wave analysis of the decay ψ(3686)→ϕηη^{'} is performed with the covariant tensor approach. In addition to the established states h_{1}(1900) and ϕ(2170), an axial-vector state with a mass near 2.3  GeV/c^{2} is observed for the first time. Its mass and width are measured to be 2316±9_{stat}±30_{syst}  MeV/c^{2} and 89±15_{stat}±26_{syst}  MeV, respectively. The product branching fractions of B[ψ(3686)→X(2300)η^{'}]B[X(2300)→ϕη] and B[ψ(3686)→X(2300)η]B[X(2300)→ϕη^{'}] are determined to be (4.8±1.3_{stat}±0.7_{syst})×10^{-6} and (2.2±0.7_{stat}±0.7_{syst})×10^{-6}, respectively. The branching fraction B[ψ(3686)→ϕηη^{'}] is measured for the first time to be (3.14±0.17_{stat}±0.24_{syst})×10^{-5}. The first uncertainties are statistical and the second are systematic.

UR - https://www.scopus.com/record/display.uri?eid=2-s2.0-105005952745&origin=inward&txGid=a6da21ad8d05cd04afb851d23c9d4024

UR - https://www.mendeley.com/catalogue/d6fd5a76-ca61-39ba-ae93-a88434818ace/

U2 - 10.1103/PhysRevLett.134.191901

DO - 10.1103/PhysRevLett.134.191901

M3 - Article

C2 - 40446269

VL - 134

SP - 191901

JO - Physical Review Letters

JF - Physical Review Letters

SN - 0031-9007

IS - 19

M1 - 191901

ER -

ID: 67265450