Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Study of the f_{0}(980) and f_{0}(500) Scalar Mesons through the Decay D_{s}^{+}→π^{+}π^{-}e^{+}ν_{e}. / The BESIII Collaboration ; Николаев, Иван Борисович; Мучной, Николай Юрьевич.
в: Physical Review Letters, Том 132, № 14, 141901, 05.04.2024, стр. 141901.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Study of the f_{0}(980) and f_{0}(500) Scalar Mesons through the Decay D_{s}^{+}→π^{+}π^{-}e^{+}ν_{e}
AU - BESIII Collaboration
AU - Ablikim, M.
AU - Achasov, M. n.
AU - Adlarson, P.
AU - Aliberti, R.
AU - Amoroso, A.
AU - An, M. r.
AU - An, Q.
AU - Bai, Y.
AU - Bakina, O.
AU - Balossino, I.
AU - Ban, Y.
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 - Bloms, J.
AU - Bortone, A.
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 - Chang, J. f.
AU - Николаев, Иван Борисович
AU - Мучной, Николай Юрьевич
PY - 2024/4/5
Y1 - 2024/4/5
N2 - Using e+e- collision data corresponding to an integrated luminosity of 7.33 fb-1 recorded by the BESIII detector at center-of-mass energies between 4.128 and 4.226 GeV, we present an analysis of the decay Ds+→π+π-e+νe, where the Ds+ is produced via the process e+e-→Ds∗±D. We observe the f0(980) in the π+π- system and the branching fraction of the decay Ds+→f0(980)e+νe with f0(980)→π+π- measured to be (1.72±0.13stat±0.10syst)×10-3, where the uncertainties are statistical and systematic, respectively. The dynamics of the Ds+→f0(980)e+νe decay are studied with the simple pole parametrization of the hadronic form factor and the Flatté formula describing the f0(980) in the differential decay rate, and the product of the form factor f+f0(0) and the c→s Cabibbo-Kobayashi-Maskawa matrix element |Vcs| is determined for the first time to be f+f0(0)|Vcs|=0.504±0.017stat±0.035syst. Furthermore, the decay Ds+→f0(500)e+νe is searched for the first time but no signal is found. The upper limit on the branching fraction of Ds+→f0(500)e+νe, f0(500)→π+π- decay is set to be 3.3×10-4 at 90% confidence level.
AB - Using e+e- collision data corresponding to an integrated luminosity of 7.33 fb-1 recorded by the BESIII detector at center-of-mass energies between 4.128 and 4.226 GeV, we present an analysis of the decay Ds+→π+π-e+νe, where the Ds+ is produced via the process e+e-→Ds∗±D. We observe the f0(980) in the π+π- system and the branching fraction of the decay Ds+→f0(980)e+νe with f0(980)→π+π- measured to be (1.72±0.13stat±0.10syst)×10-3, where the uncertainties are statistical and systematic, respectively. The dynamics of the Ds+→f0(980)e+νe decay are studied with the simple pole parametrization of the hadronic form factor and the Flatté formula describing the f0(980) in the differential decay rate, and the product of the form factor f+f0(0) and the c→s Cabibbo-Kobayashi-Maskawa matrix element |Vcs| is determined for the first time to be f+f0(0)|Vcs|=0.504±0.017stat±0.035syst. Furthermore, the decay Ds+→f0(500)e+νe is searched for the first time but no signal is found. The upper limit on the branching fraction of Ds+→f0(500)e+νe, f0(500)→π+π- decay is set to be 3.3×10-4 at 90% confidence level.
UR - https://www.scopus.com/record/display.uri?eid=2-s2.0-85190455235&origin=inward&txGid=617dd6de932c8ead8871e9770d802e0a
UR - https://pubmed.ncbi.nlm.nih.gov/38640399/
UR - https://www.mendeley.com/catalogue/dae0d2b8-c98e-3766-994f-1a78877b40c4/
U2 - 10.1103/PhysRevLett.132.141901
DO - 10.1103/PhysRevLett.132.141901
M3 - Article
C2 - 38640399
VL - 132
SP - 141901
JO - Physical Review Letters
JF - Physical Review Letters
SN - 0031-9007
IS - 14
M1 - 141901
ER -
ID: 62676730