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Study of the semileptonic decay $$ {D}^0\to {\overline{K}}^0{\pi}^{-}{e}^{+}{\nu}_e $$. / BESIII Collaboration ; Мучной, Николай Юрьевич.

In: Journal of High Energy Physics, Vol. 2025, No. 3, 197, 26.03.2025.

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

Harvard

BESIII Collaboration & Мучной, НЮ 2025, 'Study of the semileptonic decay $$ {D}^0\to {\overline{K}}^0{\pi}^{-}{e}^{+}{\nu}_e $$', Journal of High Energy Physics, vol. 2025, no. 3, 197. https://doi.org/10.1007/JHEP03(2025)197

APA

BESIII Collaboration, & Мучной, Н. Ю. (2025). Study of the semileptonic decay $$ {D}^0\to {\overline{K}}^0{\pi}^{-}{e}^{+}{\nu}_e $$. Journal of High Energy Physics, 2025(3), [197]. https://doi.org/10.1007/JHEP03(2025)197

Vancouver

BESIII Collaboration, Мучной НЮ. Study of the semileptonic decay $$ {D}^0\to {\overline{K}}^0{\pi}^{-}{e}^{+}{\nu}_e $$. Journal of High Energy Physics. 2025 Mar 26;2025(3):197. doi: 10.1007/JHEP03(2025)197

Author

BESIII Collaboration ; Мучной, Николай Юрьевич. / Study of the semileptonic decay $$ {D}^0\to {\overline{K}}^0{\pi}^{-}{e}^{+}{\nu}_e $$. In: Journal of High Energy Physics. 2025 ; Vol. 2025, No. 3.

BibTeX

@article{df1e8b0da4c64e36a2ca3758d07544c1,
title = "Study of the semileptonic decay $$ {D}^0\to {\overline{K}}^0{\pi}^{-}{e}^{+}{\nu}_e $$",
abstract = "We report an improved study of the semileptonic decay D0→K¯0π−e+νe based on a sample of 7.9 fb−1 of e+e− annihilation data collected at a center-of-mass energy of 3.773 GeV with the BESIII detector at the BEPCII collider. The branching fraction of this decay is measured to be BD0→K¯0π−e+νe = (1.444 ± 0.022stat ± 0.024syst)%, which is the most precise to date, where the first uncertainty is statistical and the second is systematic. Based on investigation of the decay dynamics, we find that the decay is dominated by the K*(892)− component and present an improved measurement of its branching fraction to be BD0→K∗892−e+νe = (2.039 ± 0.032stat± 0.034syst)%. We also determine the ratios of the hadronic form factors for the K*(892)−e+νe decay to be rV = V(0)/A1(0) = 1.48 ± 0.05stat± 0.02syst and r2 = A2(0)/A1(0) = 0.70 ± 0.04stat± 0.02syst, where V(0) is the vector form factor and A1,2(0) are the axial form factors. In addition, the K¯0π−S-wave component is found to account for (5.87 ± 0.32stat± 0.16syst)% of the total decay rate, corresponding to a branching fraction of BD0→K¯0π−S−wavee+νe = (0.085 ± 0.005stat± 0.003syst)%. {\textcopyright} The Author(s) 2025.",
author = "{BESIII Collaboration} and M. Ablikim and Achasov, {M. n.} and Nikolaev, {I. b.} and Мучной, {Николай Юрьевич}",
note = "The BESIII Collaboration thanks the staff of BEPCII 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, 2020YFA0406300, 2020YFA0406400; National Natural Science Foundation of China (NSFC) under Contracts Nos. 11635010, 11735014, 11935015, 11935016, 11935018, 12022510, 12025502, 12035009, 12035013, 12061131003, 12192260, 12192261, 12192262, 12192263, 12192264, 12192265, 12221005, 12225509, 12235017, 12375090, 12361141819; the Chinese Academy of Sciences (CAS) Large-Scale Scientific Facility Program; the CAS Center for Excellence in Particle Physics (CCEPP); Joint Large-Scale Scientific Facility Funds of the NSFC and CAS under Contract No. U1832207; 100 Talents Program of CAS; The Institute of Nuclear and Particle Physics (INPAC) and Shanghai Key Laboratory for Particle Physics and Cosmology; German Research Foundation DFG under Contracts Nos. FOR5327, GRK 2149; 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; National Science Research and Innovation Fund (NSRF) via the Program Management Unit for Human Resources & Institutional Development, Research and Innovation of Thailand under Contracts Nos. B16F640076, B50G670107; Polish National Science Centre under Contract No. 2019/35/O/ST2/02907; Swedish Research Council under Contract No. 2019.04595; The Swedish Foundation for International Cooperation in Research and Higher Education under Contract No. CH2018-7756; U. S. Department of Energy under Contract No. DE-FG02-05ER41374. This paper is also supported by the Fundamental Research Funds for the Central Universities, and the Research Funds of Renmin University of China under Contract No. 24XNKJ05. ",
year = "2025",
month = mar,
day = "26",
doi = "10.1007/JHEP03(2025)197",
language = "English",
volume = "2025",
journal = "Journal of High Energy Physics",
issn = "1029-8479",
publisher = "Springer US",
number = "3",

}

RIS

TY - JOUR

T1 - Study of the semileptonic decay $$ {D}^0\to {\overline{K}}^0{\pi}^{-}{e}^{+}{\nu}_e $$

AU - BESIII Collaboration

AU - Ablikim, M.

AU - Achasov, M. n.

AU - Nikolaev, I. b.

AU - Мучной, Николай Юрьевич

N1 - The BESIII Collaboration thanks the staff of BEPCII 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, 2020YFA0406300, 2020YFA0406400; National Natural Science Foundation of China (NSFC) under Contracts Nos. 11635010, 11735014, 11935015, 11935016, 11935018, 12022510, 12025502, 12035009, 12035013, 12061131003, 12192260, 12192261, 12192262, 12192263, 12192264, 12192265, 12221005, 12225509, 12235017, 12375090, 12361141819; the Chinese Academy of Sciences (CAS) Large-Scale Scientific Facility Program; the CAS Center for Excellence in Particle Physics (CCEPP); Joint Large-Scale Scientific Facility Funds of the NSFC and CAS under Contract No. U1832207; 100 Talents Program of CAS; The Institute of Nuclear and Particle Physics (INPAC) and Shanghai Key Laboratory for Particle Physics and Cosmology; German Research Foundation DFG under Contracts Nos. FOR5327, GRK 2149; 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; National Science Research and Innovation Fund (NSRF) via the Program Management Unit for Human Resources & Institutional Development, Research and Innovation of Thailand under Contracts Nos. B16F640076, B50G670107; Polish National Science Centre under Contract No. 2019/35/O/ST2/02907; Swedish Research Council under Contract No. 2019.04595; The Swedish Foundation for International Cooperation in Research and Higher Education under Contract No. CH2018-7756; U. S. Department of Energy under Contract No. DE-FG02-05ER41374. This paper is also supported by the Fundamental Research Funds for the Central Universities, and the Research Funds of Renmin University of China under Contract No. 24XNKJ05.

PY - 2025/3/26

Y1 - 2025/3/26

N2 - We report an improved study of the semileptonic decay D0→K¯0π−e+νe based on a sample of 7.9 fb−1 of e+e− annihilation data collected at a center-of-mass energy of 3.773 GeV with the BESIII detector at the BEPCII collider. The branching fraction of this decay is measured to be BD0→K¯0π−e+νe = (1.444 ± 0.022stat ± 0.024syst)%, which is the most precise to date, where the first uncertainty is statistical and the second is systematic. Based on investigation of the decay dynamics, we find that the decay is dominated by the K*(892)− component and present an improved measurement of its branching fraction to be BD0→K∗892−e+νe = (2.039 ± 0.032stat± 0.034syst)%. We also determine the ratios of the hadronic form factors for the K*(892)−e+νe decay to be rV = V(0)/A1(0) = 1.48 ± 0.05stat± 0.02syst and r2 = A2(0)/A1(0) = 0.70 ± 0.04stat± 0.02syst, where V(0) is the vector form factor and A1,2(0) are the axial form factors. In addition, the K¯0π−S-wave component is found to account for (5.87 ± 0.32stat± 0.16syst)% of the total decay rate, corresponding to a branching fraction of BD0→K¯0π−S−wavee+νe = (0.085 ± 0.005stat± 0.003syst)%. © The Author(s) 2025.

AB - We report an improved study of the semileptonic decay D0→K¯0π−e+νe based on a sample of 7.9 fb−1 of e+e− annihilation data collected at a center-of-mass energy of 3.773 GeV with the BESIII detector at the BEPCII collider. The branching fraction of this decay is measured to be BD0→K¯0π−e+νe = (1.444 ± 0.022stat ± 0.024syst)%, which is the most precise to date, where the first uncertainty is statistical and the second is systematic. Based on investigation of the decay dynamics, we find that the decay is dominated by the K*(892)− component and present an improved measurement of its branching fraction to be BD0→K∗892−e+νe = (2.039 ± 0.032stat± 0.034syst)%. We also determine the ratios of the hadronic form factors for the K*(892)−e+νe decay to be rV = V(0)/A1(0) = 1.48 ± 0.05stat± 0.02syst and r2 = A2(0)/A1(0) = 0.70 ± 0.04stat± 0.02syst, where V(0) is the vector form factor and A1,2(0) are the axial form factors. In addition, the K¯0π−S-wave component is found to account for (5.87 ± 0.32stat± 0.16syst)% of the total decay rate, corresponding to a branching fraction of BD0→K¯0π−S−wavee+νe = (0.085 ± 0.005stat± 0.003syst)%. © The Author(s) 2025.

UR - https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=105002023770&origin=inward

U2 - 10.1007/JHEP03(2025)197

DO - 10.1007/JHEP03(2025)197

M3 - Article

VL - 2025

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

SN - 1029-8479

IS - 3

M1 - 197

ER -

ID: 65194967