Improved measurement of the branching fraction of Ds+→μ+νμ

Standard

Improved measurement of the branching fraction of Ds+→μ+νμ. / BESIII Collaboration ; Мучной, Николай Юрьевич ; Николаев, Иван Борисович.

In: Physical Review D, Vol. 108, No. 11, 112001, 04.12.2023.

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

BibTeX

@article{ed74a3ab03944d31a701ed5cbb6e9080,

title = "Improved measurement of the branching fraction of Ds+→μ+νμ",

abstract = "Using e+e- collision data with an integrated luminosity of 7.33 fb-1 collected at center-of-mass energies between 4.128 and 4.226 GeV with the BESIII detector operating at the BEPCII collider, the branching fraction of the leptonic decay Ds+→μ+νμ is measured to be (0.5294±0.0108stat±0.0085syst)%. Based on this, the product of the Ds+ decay constant fDs+ and the magnitude of the c→s quark mixing matrix element |Vcs| is determined to be fDs+|Vcs|=241.8±2.5stat±2.2syst MeV. Using the value of |Vcs| given by the global standard model fit, fDs+ is found to be 248.4±2.5stat±2.2syst MeV. Alternatively, using the value of fDs+ from a recent lattice quantum chromodynamics calculation, |Vcs| is determined to be 0.968±0.010stat±0.009syst.",

author = "{BESIII Collaboration} and M. Ablikim and M. n. Achasov and Мучной, {Николай Юрьевич} and Николаев, {Иван Борисович}",

note = "Improved measurement of the branching fraction of Ds+→μ+νμ / BESIII Collaboration // Physical Review D. – 2023. – Vol. 108, No. 11. – P. 112001. – DOI 10.1103/physrevd.108.112001.",

year = "2023",

month = dec,

day = "4",

doi = "10.1103/PhysRevD.108.112001",

language = "English",

volume = "108",

journal = "Physical Review D",

issn = "2470-0010",

publisher = "American Physical Society",

number = "11",

}

RIS

TY - JOUR

T1 - Improved measurement of the branching fraction of Ds+→μ+νμ

AU - BESIII Collaboration

AU - Ablikim, M.

AU - Achasov, M. n.

AU - Мучной, Николай Юрьевич

AU - Николаев, Иван Борисович

N1 - Improved measurement of the branching fraction of Ds+→μ+νμ / BESIII Collaboration // Physical Review D. – 2023. – Vol. 108, No. 11. – P. 112001. – DOI 10.1103/physrevd.108.112001.

PY - 2023/12/4

Y1 - 2023/12/4

N2 - Using e+e- collision data with an integrated luminosity of 7.33 fb-1 collected at center-of-mass energies between 4.128 and 4.226 GeV with the BESIII detector operating at the BEPCII collider, the branching fraction of the leptonic decay Ds+→μ+νμ is measured to be (0.5294±0.0108stat±0.0085syst)%. Based on this, the product of the Ds+ decay constant fDs+ and the magnitude of the c→s quark mixing matrix element |Vcs| is determined to be fDs+|Vcs|=241.8±2.5stat±2.2syst MeV. Using the value of |Vcs| given by the global standard model fit, fDs+ is found to be 248.4±2.5stat±2.2syst MeV. Alternatively, using the value of fDs+ from a recent lattice quantum chromodynamics calculation, |Vcs| is determined to be 0.968±0.010stat±0.009syst.

AB - Using e+e- collision data with an integrated luminosity of 7.33 fb-1 collected at center-of-mass energies between 4.128 and 4.226 GeV with the BESIII detector operating at the BEPCII collider, the branching fraction of the leptonic decay Ds+→μ+νμ is measured to be (0.5294±0.0108stat±0.0085syst)%. Based on this, the product of the Ds+ decay constant fDs+ and the magnitude of the c→s quark mixing matrix element |Vcs| is determined to be fDs+|Vcs|=241.8±2.5stat±2.2syst MeV. Using the value of |Vcs| given by the global standard model fit, fDs+ is found to be 248.4±2.5stat±2.2syst MeV. Alternatively, using the value of fDs+ from a recent lattice quantum chromodynamics calculation, |Vcs| is determined to be 0.968±0.010stat±0.009syst.

UR - https://www.elibrary.ru/item.asp?id=64741578

UR - https://www.mendeley.com/catalogue/374742b7-6870-3e7a-ae6e-eb64bd31a2e4/

U2 - 10.1103/PhysRevD.108.112001

DO - 10.1103/PhysRevD.108.112001

M3 - Article

VL - 108

JO - Physical Review D

JF - Physical Review D

SN - 2470-0010

IS - 11

M1 - 112001

ER -

ID: 68346454