Standard

Measurement of the branching fraction of $$ {\textrm{D}}_{\textrm{s}}^{+} $$ → τ+ντ via τ+ → μ+νμ$$ \overline{\nu} $$τ. / BESIII Collaboration ; Мучной, Николай Юрьевич; Николаев, Иван Борисович.

In: Journal of High Energy Physics, Vol. 2023, No. 9, 124, 19.09.2023.

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

Harvard

BESIII Collaboration, Мучной, НЮ & Николаев, ИБ 2023, 'Measurement of the branching fraction of $$ {\textrm{D}}_{\textrm{s}}^{+} $$ → τ+ντ via τ+ → μ+νμ$$ \overline{\nu} $$τ', Journal of High Energy Physics, vol. 2023, no. 9, 124. https://doi.org/10.1007/JHEP09(2023)124

APA

BESIII Collaboration, Мучной, Н. Ю., & Николаев, И. Б. (2023). Measurement of the branching fraction of $$ {\textrm{D}}_{\textrm{s}}^{+} $$ → τ+ντ via τ+ → μ+νμ$$ \overline{\nu} $$τ. Journal of High Energy Physics, 2023(9), [124]. https://doi.org/10.1007/JHEP09(2023)124

Vancouver

BESIII Collaboration, Мучной НЮ, Николаев ИБ. Measurement of the branching fraction of $$ {\textrm{D}}_{\textrm{s}}^{+} $$ → τ+ντ via τ+ → μ+νμ$$ \overline{\nu} $$τ. Journal of High Energy Physics. 2023 Sept 19;2023(9):124. doi: 10.1007/JHEP09(2023)124

Author

BESIII Collaboration ; Мучной, Николай Юрьевич ; Николаев, Иван Борисович. / Measurement of the branching fraction of $$ {\textrm{D}}_{\textrm{s}}^{+} $$ → τ+ντ via τ+ → μ+νμ$$ \overline{\nu} $$τ. In: Journal of High Energy Physics. 2023 ; Vol. 2023, No. 9.

BibTeX

@article{8b9bfb584a0a4adeafc191175d6e2101,
title = "Measurement of the branching fraction of $$ {\textrm{D}}_{\textrm{s}}^{+} $$ → τ+ντ via τ+ → μ+νμ$$ \overline{\nu} $$τ",
abstract = "Utilizing 7.33 fb−1 of e+e− collision data taken at the center-of-mass energies of 4.128, 4.157, 4.178, 4.189, 4.199, 4.209, 4.219, and 4.226 GeV with the BESIII detector, the branching fraction of the leptonic decay → τ+ντ via τ+ → μ+νμτ is measured to be = (5.37 ± 0.17stat ± 0.15syst)%. Combining this branching fraction with the world averages of the measurements of the masses of τ+ and as well as the lifetime of , we extract the product of the decay constant of and the c → s Cabibbo-Kobayashi-Maskawa matrix element to be |Vcs| = (246.7 ± 3.9stat ± 3.6syst) MeV. Taking |Vcs| from a global fit in the standard model we obtain = (253.4 ± 4.0stat ± 3.7syst) MeV. Conversely, taking from lattice quantum chromodynamics calculations, we obtain |Vcs| = 0.987 ± 0.016stat ± 0.014syst.",
author = "{BESIII Collaboration} and M. Ablikim and Achasov, {M. n.} and Мучной, {Николай Юрьевич} and Николаев, {Иван Борисович}",
year = "2023",
month = sep,
day = "19",
doi = "10.1007/JHEP09(2023)124",
language = "English",
volume = "2023",
journal = "Journal of High Energy Physics",
issn = "1029-8479",
publisher = "Springer US",
number = "9",

}

RIS

TY - JOUR

T1 - Measurement of the branching fraction of $$ {\textrm{D}}_{\textrm{s}}^{+} $$ → τ+ντ via τ+ → μ+νμ$$ \overline{\nu} $$τ

AU - BESIII Collaboration

AU - Ablikim, M.

AU - Achasov, M. n.

AU - Мучной, Николай Юрьевич

AU - Николаев, Иван Борисович

PY - 2023/9/19

Y1 - 2023/9/19

N2 - Utilizing 7.33 fb−1 of e+e− collision data taken at the center-of-mass energies of 4.128, 4.157, 4.178, 4.189, 4.199, 4.209, 4.219, and 4.226 GeV with the BESIII detector, the branching fraction of the leptonic decay → τ+ντ via τ+ → μ+νμτ is measured to be = (5.37 ± 0.17stat ± 0.15syst)%. Combining this branching fraction with the world averages of the measurements of the masses of τ+ and as well as the lifetime of , we extract the product of the decay constant of and the c → s Cabibbo-Kobayashi-Maskawa matrix element to be |Vcs| = (246.7 ± 3.9stat ± 3.6syst) MeV. Taking |Vcs| from a global fit in the standard model we obtain = (253.4 ± 4.0stat ± 3.7syst) MeV. Conversely, taking from lattice quantum chromodynamics calculations, we obtain |Vcs| = 0.987 ± 0.016stat ± 0.014syst.

AB - Utilizing 7.33 fb−1 of e+e− collision data taken at the center-of-mass energies of 4.128, 4.157, 4.178, 4.189, 4.199, 4.209, 4.219, and 4.226 GeV with the BESIII detector, the branching fraction of the leptonic decay → τ+ντ via τ+ → μ+νμτ is measured to be = (5.37 ± 0.17stat ± 0.15syst)%. Combining this branching fraction with the world averages of the measurements of the masses of τ+ and as well as the lifetime of , we extract the product of the decay constant of and the c → s Cabibbo-Kobayashi-Maskawa matrix element to be |Vcs| = (246.7 ± 3.9stat ± 3.6syst) MeV. Taking |Vcs| from a global fit in the standard model we obtain = (253.4 ± 4.0stat ± 3.7syst) MeV. Conversely, taking from lattice quantum chromodynamics calculations, we obtain |Vcs| = 0.987 ± 0.016stat ± 0.014syst.

U2 - 10.1007/JHEP09(2023)124

DO - 10.1007/JHEP09(2023)124

M3 - Article

VL - 2023

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

SN - 1029-8479

IS - 9

M1 - 124

ER -

ID: 68348592