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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 P. Adlarson and O. Afedulidis and X. c. Ai and R. Aliberti and A. Amoroso and Y. Bai and O. Bakina and I. Balossino and Y. Ban and H.-R. Bao and V. Batozskaya and K. Begzsuren and N. Berger and M. Berlowski and M. Bertani and D. Bettoni and F. Bianchi and E. Bianco and A. Bortone and I. Boyko and R. a. Briere and A. Brueggemann and H. Cai and X. Cai and A. Calcaterra and G. f. Cao and N. Cao and S. a. Cetin and X. y. Chai and J. f. Chang and G. r. Che and Y. z. Che and G. Chelkov and C. Chen and C. h. Chen and Chao Chen and G. Chen and H. s. Chen and H. y. Chen and M. l. Chen and Николаев, {Иван Борисович} and Мучной, {Николай Юрьевич}",
year = "2025",
month = jan,
day = "24",
doi = "10.1103/PhysRevD.111.L011103",
language = "English",
volume = "111",
journal = "Physical Review D",
issn = "2470-0010",
publisher = "AMER PHYSICAL SOC",
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 - Adlarson, P.

AU - Afedulidis, O.

AU - Ai, X. c.

AU - Aliberti, R.

AU - Amoroso, A.

AU - Bai, Y.

AU - Bakina, O.

AU - Balossino, I.

AU - Ban, Y.

AU - Bao, H.-R.

AU - Batozskaya, V.

AU - Begzsuren, K.

AU - Berger, N.

AU - Berlowski, M.

AU - Bertani, M.

AU - Bettoni, D.

AU - Bianchi, F.

AU - Bianco, E.

AU - Bortone, A.

AU - Boyko, I.

AU - Briere, R. a.

AU - Brueggemann, A.

AU - Cai, H.

AU - Cai, X.

AU - Calcaterra, A.

AU - Cao, G. f.

AU - Cao, N.

AU - Cetin, S. a.

AU - Chai, X. y.

AU - Chang, J. f.

AU - Che, G. r.

AU - Che, Y. z.

AU - Chelkov, G.

AU - Chen, C.

AU - Chen, C. h.

AU - Chen, Chao

AU - Chen, G.

AU - Chen, H. s.

AU - Chen, H. y.

AU - Chen, M. l.

AU - Николаев, Иван Борисович

AU - Мучной, Николай Юрьевич

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

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