Search for the charmonium weak decay J/ψ → D¯0K¯ ∗0 + c.c.

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Search for the charmonium weak decay J/ψ → D¯0K¯ ∗0 + c.c. / BESIII Collaboration ; Ачасов, Михаил Николаевич ; Мучной, Николай Юрьевич et al.

In: Journal of High Energy Physics, Vol. 2026, No. 5, 126, 12.05.2026.

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

BibTeX

@article{53f57441caa3468995d9ee1fc7c3c1f6,

title = "Search for the charmonium weak decay J/ψ → D¯0K¯ ∗0 + c.c.",

abstract = "Based on a sample of (10087±44)×106 J/ψ events collected at the center-of-massenergy √s = 3.0969 GeV with the BESIII detector, we search for the charmonium rare weak decay J/ψ → D¯ 0K¯ ∗0 + c.c.. No significant signal is observed, and the upper limit on its decay branching fraction at the 90% confidence level is set as 1.4 × 10−7, improving the sensitivity of the previous best limit by an order of magnitude.",

keywords = "e +-e − Experiments, Electroweak Interaction, Branching fraction",

author = "{BESIII Collaboration} and Ачасов, {Михаил Николаевич} and Мучной, {Николай Юрьевич} and Николаев, {Иван Борисович}",

note = "The BESIII collaboration., Ablikim, M., Achasov, M.N. et al. Search for the charmonium weak decay J/ψ → D¯0K¯ ∗0 + c.c. J. High Energ. Phys. 2026, 126 (2026). https://doi.org/10.1007/JHEP05(2026)126 The BESIII Collaboration thanks the staff of BEPCII (https://cstr.cn/31109.02.BEPC) and the IHEP computing center for their strong support. This work is supported in part by National Key R&D Program of China under Contracts Nos. 2023YFA1606000, 2023YFA1606704; National Natural Science Foundation of China (NSFC) under Contracts Nos. 11635010, 11935015, 11935016, 11935018, 12025502, 12035009, 12035013, 12061131003, 12192260, 12192261, 12192262, 12192263, 12192264, 12192265, 12221005, 12225509, 12235017, 12361141819; the Chinese Academy of Sciences (CAS) Large-Scale Scientific Facility Program; CAS under Contract No. YSBR-101; 100 Talents Program of CAS; The Institute of Nuclear and Particle Physics (INPAC) and Shanghai Key Laboratory for Particle Physics and Cosmology; ERC under Contract No. 758462; German Research Foundation DFG under Contract No. FOR5327; Istituto Nazionale di Fisica Nucleare, Italy; Knut and Alice Wallenberg Foundation under Contracts Nos. 2021.0174, 2021.0299; Ministry of Development of Turkey under Contract No. DPT2006K-120470; National Research Foundation of Korea under Contract No. NRF-2022R1A2C1092335; National Science and Technology fund of Mongolia; Polish National Science Centre under Contract No. 2024/53/B/ST2/00975; STFC (United Kingdom); Swedish Research Council under Contract No. 2019.04595; U.S. Department of Energy under Contract No. DE-FG02-05ER41374.",

year = "2026",

month = may,

day = "12",

doi = "10.1007/JHEP05(2026)126",

language = "English",

volume = "2026",

journal = "Journal of High Energy Physics",

issn = "1029-8479",

publisher = "Springer US",

number = "5",

}

RIS

TY - JOUR

T1 - Search for the charmonium weak decay J/ψ → D¯0K¯ ∗0 + c.c.

AU - BESIII Collaboration

AU - Ачасов, Михаил Николаевич

AU - Мучной, Николай Юрьевич

AU - Николаев, Иван Борисович

N1 - The BESIII collaboration., Ablikim, M., Achasov, M.N. et al. Search for the charmonium weak decay J/ψ → D¯0K¯ ∗0 + c.c. J. High Energ. Phys. 2026, 126 (2026). https://doi.org/10.1007/JHEP05(2026)126 The BESIII Collaboration thanks the staff of BEPCII (https://cstr.cn/31109.02.BEPC) and the IHEP computing center for their strong support. This work is supported in part by National Key R&D Program of China under Contracts Nos. 2023YFA1606000, 2023YFA1606704; National Natural Science Foundation of China (NSFC) under Contracts Nos. 11635010, 11935015, 11935016, 11935018, 12025502, 12035009, 12035013, 12061131003, 12192260, 12192261, 12192262, 12192263, 12192264, 12192265, 12221005, 12225509, 12235017, 12361141819; the Chinese Academy of Sciences (CAS) Large-Scale Scientific Facility Program; CAS under Contract No. YSBR-101; 100 Talents Program of CAS; The Institute of Nuclear and Particle Physics (INPAC) and Shanghai Key Laboratory for Particle Physics and Cosmology; ERC under Contract No. 758462; German Research Foundation DFG under Contract No. FOR5327; Istituto Nazionale di Fisica Nucleare, Italy; Knut and Alice Wallenberg Foundation under Contracts Nos. 2021.0174, 2021.0299; Ministry of Development of Turkey under Contract No. DPT2006K-120470; National Research Foundation of Korea under Contract No. NRF-2022R1A2C1092335; National Science and Technology fund of Mongolia; Polish National Science Centre under Contract No. 2024/53/B/ST2/00975; STFC (United Kingdom); Swedish Research Council under Contract No. 2019.04595; U.S. Department of Energy under Contract No. DE-FG02-05ER41374.

PY - 2026/5/12

Y1 - 2026/5/12

N2 - Based on a sample of (10087±44)×106 J/ψ events collected at the center-of-massenergy √s = 3.0969 GeV with the BESIII detector, we search for the charmonium rare weak decay J/ψ → D¯ 0K¯ ∗0 + c.c.. No significant signal is observed, and the upper limit on its decay branching fraction at the 90% confidence level is set as 1.4 × 10−7, improving the sensitivity of the previous best limit by an order of magnitude.

AB - Based on a sample of (10087±44)×106 J/ψ events collected at the center-of-massenergy √s = 3.0969 GeV with the BESIII detector, we search for the charmonium rare weak decay J/ψ → D¯ 0K¯ ∗0 + c.c.. No significant signal is observed, and the upper limit on its decay branching fraction at the 90% confidence level is set as 1.4 × 10−7, improving the sensitivity of the previous best limit by an order of magnitude.

KW - e +-e − Experiments

KW - Electroweak Interaction

KW - Branching fraction

UR - https://www.scopus.com/pages/publications/105039850315

U2 - 10.1007/JHEP05(2026)126

DO - 10.1007/JHEP05(2026)126

M3 - Article

VL - 2026

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

SN - 1029-8479

IS - 5

M1 - 126

ER -

ID: 80207630