Standard

Observation of ψ(3770)→ηJ/ψ. / The BESIII Collaboration ; Мучной, Николай Юрьевич; Николаев, Иван Борисович.

в: Physical Review D, Том 107, № 9, 091101, 15.05.2023.

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

Harvard

The BESIII Collaboration, Мучной, НЮ & Николаев, ИБ 2023, 'Observation of ψ(3770)→ηJ/ψ', Physical Review D, Том. 107, № 9, 091101. https://doi.org/10.1103/PhysRevD.107.L091101

APA

The BESIII Collaboration, Мучной, Н. Ю., & Николаев, И. Б. (2023). Observation of ψ(3770)→ηJ/ψ. Physical Review D, 107(9), [091101]. https://doi.org/10.1103/PhysRevD.107.L091101

Vancouver

The BESIII Collaboration, Мучной НЮ, Николаев ИБ. Observation of ψ(3770)→ηJ/ψ. Physical Review D. 2023 май 15;107(9):091101. doi: 10.1103/PhysRevD.107.L091101

Author

The BESIII Collaboration ; Мучной, Николай Юрьевич ; Николаев, Иван Борисович. / Observation of ψ(3770)→ηJ/ψ. в: Physical Review D. 2023 ; Том 107, № 9.

BibTeX

@article{474552a1653441a4a869a2d6f7e89358,
title = "Observation of ψ(3770)→ηJ/ψ",
abstract = "Using a data sample collected with the BESIII detector operating at the BEPCII storage ring, the Born cross section of the process 푒+⁢푒−→휂⁢퐽/휓 at a center-of-mass energy √푠=3.773  GeV is measured to be (8.88±0.87±0.42)  pb. We fit the cross section line shape before correcting for the initial state radiation from √푠 =3.773 to 4.600 GeV to obtain the branching fraction ℬ⁡(휓⁡(3770)→휂⁢퐽/휓). We obtain ℬ⁡(휓⁡(3770)→휂⁢퐽/휓)=(11.3±5.9±1.1)×10−4 when the 휓⁡(3770) decay amplitude is added coherently to the other contributions, and (8.7±1.0±0.8)×10−4 when it is added incoherently. Here the quoted uncertainties are statistical and systematic, respectively. In both cases, the statistical significance of 휓⁡(3770) resonance is above 7⁢휎. This is the first time the decay 휓⁡(3770) →휂⁢퐽/휓 is observed with a statistical significance greater than 5⁢휎.",
author = "{BESIII Collaboration} and M. Ablikim and M. n. Achasov and Мучной, {Николай Юрьевич} and Николаев, {Иван Борисович}",
note = "Observation of ψ(3770)→ηJ/ψ / BESIII Collaboration // Physical Review D. – 2023. – Vol. 107, No. 9. – P. L091101. – DOI 10.1103/physrevd.107.l091101.",
year = "2023",
month = may,
day = "15",
doi = "10.1103/PhysRevD.107.L091101",
language = "English",
volume = "107",
journal = "Physical Review D",
issn = "2470-0010",
publisher = "American Physical Society",
number = "9",

}

RIS

TY - JOUR

T1 - Observation of ψ(3770)→ηJ/ψ

AU - BESIII Collaboration

AU - Ablikim, M.

AU - Achasov, M. n.

AU - Мучной, Николай Юрьевич

AU - Николаев, Иван Борисович

N1 - Observation of ψ(3770)→ηJ/ψ / BESIII Collaboration // Physical Review D. – 2023. – Vol. 107, No. 9. – P. L091101. – DOI 10.1103/physrevd.107.l091101.

PY - 2023/5/15

Y1 - 2023/5/15

N2 - Using a data sample collected with the BESIII detector operating at the BEPCII storage ring, the Born cross section of the process 푒+⁢푒−→휂⁢퐽/휓 at a center-of-mass energy √푠=3.773  GeV is measured to be (8.88±0.87±0.42)  pb. We fit the cross section line shape before correcting for the initial state radiation from √푠 =3.773 to 4.600 GeV to obtain the branching fraction ℬ⁡(휓⁡(3770)→휂⁢퐽/휓). We obtain ℬ⁡(휓⁡(3770)→휂⁢퐽/휓)=(11.3±5.9±1.1)×10−4 when the 휓⁡(3770) decay amplitude is added coherently to the other contributions, and (8.7±1.0±0.8)×10−4 when it is added incoherently. Here the quoted uncertainties are statistical and systematic, respectively. In both cases, the statistical significance of 휓⁡(3770) resonance is above 7⁢휎. This is the first time the decay 휓⁡(3770) →휂⁢퐽/휓 is observed with a statistical significance greater than 5⁢휎.

AB - Using a data sample collected with the BESIII detector operating at the BEPCII storage ring, the Born cross section of the process 푒+⁢푒−→휂⁢퐽/휓 at a center-of-mass energy √푠=3.773  GeV is measured to be (8.88±0.87±0.42)  pb. We fit the cross section line shape before correcting for the initial state radiation from √푠 =3.773 to 4.600 GeV to obtain the branching fraction ℬ⁡(휓⁡(3770)→휂⁢퐽/휓). We obtain ℬ⁡(휓⁡(3770)→휂⁢퐽/휓)=(11.3±5.9±1.1)×10−4 when the 휓⁡(3770) decay amplitude is added coherently to the other contributions, and (8.7±1.0±0.8)×10−4 when it is added incoherently. Here the quoted uncertainties are statistical and systematic, respectively. In both cases, the statistical significance of 휓⁡(3770) resonance is above 7⁢휎. This is the first time the decay 휓⁡(3770) →휂⁢퐽/휓 is observed with a statistical significance greater than 5⁢휎.

UR - https://www.elibrary.ru/item.asp?id=61530753

U2 - 10.1103/PhysRevD.107.L091101

DO - 10.1103/PhysRevD.107.L091101

M3 - Article

VL - 107

JO - Physical Review D

JF - Physical Review D

SN - 2470-0010

IS - 9

M1 - 091101

ER -

ID: 68340678