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Observation of a Vector Charmoniumlike State at 4.7  GeV/c^{2} and Search for Z_{cs} in e^{+}e^{-}→K^{+}K^{-}J/ψ. / The BESIII Collaboration ; Мучной, Николай Юрьевич.

в: Physical Review Letters, Том 131, № 21, 24.11.2023, стр. 211902.

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

Harvard

The BESIII Collaboration & Мучной, НЮ 2023, 'Observation of a Vector Charmoniumlike State at 4.7  GeV/c^{2} and Search for Z_{cs} in e^{+}e^{-}→K^{+}K^{-}J/ψ', Physical Review Letters, Том. 131, № 21, стр. 211902. https://doi.org/10.1103/PhysRevLett.131.211902

APA

The BESIII Collaboration, & Мучной, Н. Ю. (2023). Observation of a Vector Charmoniumlike State at 4.7  GeV/c^{2} and Search for Z_{cs} in e^{+}e^{-}→K^{+}K^{-}J/ψ. Physical Review Letters, 131(21), 211902. https://doi.org/10.1103/PhysRevLett.131.211902

Vancouver

The BESIII Collaboration, Мучной НЮ. Observation of a Vector Charmoniumlike State at 4.7  GeV/c^{2} and Search for Z_{cs} in e^{+}e^{-}→K^{+}K^{-}J/ψ. Physical Review Letters. 2023 нояб. 24;131(21):211902. doi: 10.1103/PhysRevLett.131.211902

Author

The BESIII Collaboration ; Мучной, Николай Юрьевич. / Observation of a Vector Charmoniumlike State at 4.7  GeV/c^{2} and Search for Z_{cs} in e^{+}e^{-}→K^{+}K^{-}J/ψ. в: Physical Review Letters. 2023 ; Том 131, № 21. стр. 211902.

BibTeX

@article{26912346cc1741b39faa962f42741baf,
title = "Observation of a Vector Charmoniumlike State at 4.7  GeV/c^{2} and Search for Z_{cs} in e^{+}e^{-}→K^{+}K^{-}J/ψ",
abstract = "Using data samples with an integrated luminosity of 5.85  fb^{-1} collected at center-of-mass energies from 4.61 to 4.95 GeV with the BESIII detector operating at the BEPCII storage ring, we measure the cross section for the process e^{+}e^{-}→K^{+}K^{-}J/ψ. A new resonance with a mass of M=4708_{-15}^{+17}±21  MeV/c^{2} and a width of Γ=126_{-23}^{+27}±30  MeV is observed in the energy-dependent line shape of the e^{+}e^{-}→K^{+}K^{-}J/ψ cross section with a significance over 5σ. The K^{+}J/ψ system is also investigated to search for charged charmoniumlike states, but no significant Z_{cs}^{+} states are observed. Upper limits on the Born cross sections for e^{+}e^{-}→K^{-}Z_{cs}(3985)^{+}/K^{-}Z_{cs}(4000)^{+}+c.c. with Z_{cs}(3985)^{±}/Z_{cs}(4000)^{±}→K^{±}J/ψ are reported at 90% confidence levels. The ratio of branching fractions {[B(Z_{cs}(3985)^{+}→K^{+}J/ψ)]/B[Z_{cs}(3985)^{+}→(D[over ¯]^{0}D_{s}^{*+}+D[over ¯]^{*0}D_{s}^{+})]} is measured to be less than 0.03 at 90% confidence level.",
author = "{BESIII Collaboration} and Achasov, {M N} and Chen, {C H} and Nikolaev, {I B} and Мучной, {Николай Юрьевич}",
note = "Observation of a Vector Charmoniumlike State at 4.7  GeV/c2 and Search for Zcs in e+e−→K+K−J/ψ / BESIII Collaboration // Physical Review Letters. – 2023. – Vol. 131, No. 21. – P. 211902. – DOI 10.1103/physrevlett.131.211902. – EDN LNLYKA.",
year = "2023",
month = nov,
day = "24",
doi = "10.1103/PhysRevLett.131.211902",
language = "English",
volume = "131",
pages = "211902",
journal = "Physical Review Letters",
issn = "0031-9007",
publisher = "American Physical Society",
number = "21",

}

RIS

TY - JOUR

T1 - Observation of a Vector Charmoniumlike State at 4.7  GeV/c^{2} and Search for Z_{cs} in e^{+}e^{-}→K^{+}K^{-}J/ψ

AU - BESIII Collaboration

AU - Achasov, M N

AU - Chen, C H

AU - Nikolaev, I B

AU - Мучной, Николай Юрьевич

N1 - Observation of a Vector Charmoniumlike State at 4.7  GeV/c2 and Search for Zcs in e+e−→K+K−J/ψ / BESIII Collaboration // Physical Review Letters. – 2023. – Vol. 131, No. 21. – P. 211902. – DOI 10.1103/physrevlett.131.211902. – EDN LNLYKA.

PY - 2023/11/24

Y1 - 2023/11/24

N2 - Using data samples with an integrated luminosity of 5.85  fb^{-1} collected at center-of-mass energies from 4.61 to 4.95 GeV with the BESIII detector operating at the BEPCII storage ring, we measure the cross section for the process e^{+}e^{-}→K^{+}K^{-}J/ψ. A new resonance with a mass of M=4708_{-15}^{+17}±21  MeV/c^{2} and a width of Γ=126_{-23}^{+27}±30  MeV is observed in the energy-dependent line shape of the e^{+}e^{-}→K^{+}K^{-}J/ψ cross section with a significance over 5σ. The K^{+}J/ψ system is also investigated to search for charged charmoniumlike states, but no significant Z_{cs}^{+} states are observed. Upper limits on the Born cross sections for e^{+}e^{-}→K^{-}Z_{cs}(3985)^{+}/K^{-}Z_{cs}(4000)^{+}+c.c. with Z_{cs}(3985)^{±}/Z_{cs}(4000)^{±}→K^{±}J/ψ are reported at 90% confidence levels. The ratio of branching fractions {[B(Z_{cs}(3985)^{+}→K^{+}J/ψ)]/B[Z_{cs}(3985)^{+}→(D[over ¯]^{0}D_{s}^{*+}+D[over ¯]^{*0}D_{s}^{+})]} is measured to be less than 0.03 at 90% confidence level.

AB - Using data samples with an integrated luminosity of 5.85  fb^{-1} collected at center-of-mass energies from 4.61 to 4.95 GeV with the BESIII detector operating at the BEPCII storage ring, we measure the cross section for the process e^{+}e^{-}→K^{+}K^{-}J/ψ. A new resonance with a mass of M=4708_{-15}^{+17}±21  MeV/c^{2} and a width of Γ=126_{-23}^{+27}±30  MeV is observed in the energy-dependent line shape of the e^{+}e^{-}→K^{+}K^{-}J/ψ cross section with a significance over 5σ. The K^{+}J/ψ system is also investigated to search for charged charmoniumlike states, but no significant Z_{cs}^{+} states are observed. Upper limits on the Born cross sections for e^{+}e^{-}→K^{-}Z_{cs}(3985)^{+}/K^{-}Z_{cs}(4000)^{+}+c.c. with Z_{cs}(3985)^{±}/Z_{cs}(4000)^{±}→K^{±}J/ψ are reported at 90% confidence levels. The ratio of branching fractions {[B(Z_{cs}(3985)^{+}→K^{+}J/ψ)]/B[Z_{cs}(3985)^{+}→(D[over ¯]^{0}D_{s}^{*+}+D[over ¯]^{*0}D_{s}^{+})]} is measured to be less than 0.03 at 90% confidence level.

UR - https://pubmed.ncbi.nlm.nih.gov/38072611/

UR - https://www.elibrary.ru/item.asp?id=63943430

U2 - 10.1103/PhysRevLett.131.211902

DO - 10.1103/PhysRevLett.131.211902

M3 - Article

C2 - 38072611

VL - 131

SP - 211902

JO - Physical Review Letters

JF - Physical Review Letters

SN - 0031-9007

IS - 21

ER -

ID: 68336783