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Search for a massless dark photon in c→uγ′ decays. / BESIII Collaboration ; Николаев, Иван Борисович; Мучной, Николай Юрьевич.

In: Physical Review D, Vol. 111, No. 1, L011103, 24.01.2025.

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

Harvard

BESIII Collaboration, Николаев, ИБ & Мучной, НЮ 2025, 'Search for a massless dark photon in c→uγ′ decays', Physical Review D, vol. 111, no. 1, L011103. https://doi.org/10.1103/PhysRevD.111.L011103

APA

BESIII Collaboration, Николаев, И. Б., & Мучной, Н. Ю. (2025). Search for a massless dark photon in c→uγ′ decays. Physical Review D, 111(1), [ L011103]. https://doi.org/10.1103/PhysRevD.111.L011103

Vancouver

BESIII Collaboration, Николаев ИБ, Мучной НЮ. Search for a massless dark photon in c→uγ′ decays. Physical Review D. 2025 Jan 24;111(1): L011103. doi: 10.1103/PhysRevD.111.L011103

Author

BESIII Collaboration ; Николаев, Иван Борисович ; Мучной, Николай Юрьевич. / Search for a massless dark photon in c→uγ′ decays. In: Physical Review D. 2025 ; Vol. 111, No. 1.

BibTeX

@article{18e3595ef5d343d48ebd2ef7fdbc3525,
title = "Search for a massless dark photon in c→uγ′ decays",
abstract = "Using 7.9⁢f⁡b−1 of 푒+⁢푒− collision data collected at √푠 =3.773  GeV with the BESIII detector at the BEPCII collider, we search for the massless dark photon with the flavor-changing neutral current processes 퐷0 →휔⁢훾′ and 퐷0 →훾⁢훾′ for the first time. No significant signals are observed, and the upper limits at the 90% confidence level on the massless dark photon branching fraction are set to be 1.1 ×10−5 and 2.0 ×10−6 for 퐷0 →휔⁢훾′ and 퐷0 →훾⁢훾′, respectively. These results provide the most stringent constraint on the new physics energy scale associated with 푐⁢푢⁢훾′ coupling in the world, with the new physics energy scale related parameter |ℂ|2+|ℂ5|2",
author = "{BESIII Collaboration} and M. Ablikim and M. n. Achasov and Николаев, {Иван Борисович} and Мучной, {Николай Юрьевич}",
note = "Search for a massless dark photon in c→uγ′ decays / M. Ablikim, M. N. Achasov, P. Adlarson [et al.] // Physical Review D. – 2025. – Vol. 111, No. 1. – P. L011103. – DOI 10.1103/physrevd.111.l011103.",
year = "2025",
month = jan,
day = "24",
doi = "10.1103/PhysRevD.111.L011103",
language = "English",
volume = "111",
journal = "Physical Review D",
issn = "2470-0010",
publisher = "American Physical Society",
number = "1",

}

RIS

TY - JOUR

T1 - Search for a massless dark photon in c→uγ′ decays

AU - BESIII Collaboration

AU - Ablikim, M.

AU - Achasov, M. n.

AU - Николаев, Иван Борисович

AU - Мучной, Николай Юрьевич

N1 - Search for a massless dark photon in c→uγ′ decays / M. Ablikim, M. N. Achasov, P. Adlarson [et al.] // Physical Review D. – 2025. – Vol. 111, No. 1. – P. L011103. – DOI 10.1103/physrevd.111.l011103.

PY - 2025/1/24

Y1 - 2025/1/24

N2 - Using 7.9⁢f⁡b−1 of 푒+⁢푒− collision data collected at √푠 =3.773  GeV with the BESIII detector at the BEPCII collider, we search for the massless dark photon with the flavor-changing neutral current processes 퐷0 →휔⁢훾′ and 퐷0 →훾⁢훾′ for the first time. No significant signals are observed, and the upper limits at the 90% confidence level on the massless dark photon branching fraction are set to be 1.1 ×10−5 and 2.0 ×10−6 for 퐷0 →휔⁢훾′ and 퐷0 →훾⁢훾′, respectively. These results provide the most stringent constraint on the new physics energy scale associated with 푐⁢푢⁢훾′ coupling in the world, with the new physics energy scale related parameter |ℂ|2+|ℂ5|2

AB - Using 7.9⁢f⁡b−1 of 푒+⁢푒− collision data collected at √푠 =3.773  GeV with the BESIII detector at the BEPCII collider, we search for the massless dark photon with the flavor-changing neutral current processes 퐷0 →휔⁢훾′ and 퐷0 →훾⁢훾′ for the first time. No significant signals are observed, and the upper limits at the 90% confidence level on the massless dark photon branching fraction are set to be 1.1 ×10−5 and 2.0 ×10−6 for 퐷0 →휔⁢훾′ and 퐷0 →훾⁢훾′, respectively. These results provide the most stringent constraint on the new physics energy scale associated with 푐⁢푢⁢훾′ coupling in the world, with the new physics energy scale related parameter |ℂ|2+|ℂ5|2

UR - https://www.scopus.com/record/display.uri?eid=2-s2.0-85216571408&origin=inward&txGid=21dedd99a8ec64d8dce5dae8ebc0631a

UR - https://elibrary.ru/item.asp?id=81822289

U2 - 10.1103/PhysRevD.111.L011103

DO - 10.1103/PhysRevD.111.L011103

M3 - Article

VL - 111

JO - Physical Review D

JF - Physical Review D

SN - 2470-0010

IS - 1

M1 - L011103

ER -

ID: 64572929