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Study of the light scalar a0(980) through the decay D0→a0(980)−e+νe with a0(980)−→ηπ−. / The BESIII Collaboration ; Николаев, Иван Борисович; Мучной, Николай Юрьевич.
в: Physical Review D, Том 111, № 9, 091501, 06.05.2025.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Study of the light scalar a0(980) through the decay D0→a0(980)−e+νe with a0(980)−→ηπ−
AU - BESIII Collaboration
AU - Ablikim, M.
AU - Achasov, M. n.
AU - Adlarson, P.
AU - Afedulidis, O.
AU - Ai, X. c.
AU - Aliberti, R.
AU - Amoroso, A.
AU - An, Q.
AU - Bai, Y.
AU - Bakina, O.
AU - Balossino, I.
AU - Ban, Y.
AU - Bao, H.-R.
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 - Bortone, A.
AU - Briere, R. a.
AU - Brueggemann, A.
AU - Николаев, Иван Борисович
AU - Мучной, Николай Юрьевич
PY - 2025/5/6
Y1 - 2025/5/6
N2 - Using 7.93 fb−1 of 푒+푒− collision data collected at a center-of-mass energy of 3.773 GeV with the BESIII detector, we present an analysis of the decay 퐷0→휂휋−푒+휈푒. The branching fraction of the decay 퐷0→푎0(980)−푒+휈푒 with 푎0(980)−→휂휋− is measured to be (0.86±0.17stat±0.05syst)×10−4. The decay dynamics of this process is studied with a single-pole parametrization of the hadronic form factor and the Flatté formula describing the 푎0(980) line shape in the differential decay rate. The product of the form factor 푓푎0 +(0) and the Cabibbo-Kobayashi-Maskawa matrix element |푉푐푑| is determined for the first time with the result 푓푎0 +(0)|푉푐푑|=0.126±0.013stat±0.003syst.
AB - Using 7.93 fb−1 of 푒+푒− collision data collected at a center-of-mass energy of 3.773 GeV with the BESIII detector, we present an analysis of the decay 퐷0→휂휋−푒+휈푒. The branching fraction of the decay 퐷0→푎0(980)−푒+휈푒 with 푎0(980)−→휂휋− is measured to be (0.86±0.17stat±0.05syst)×10−4. The decay dynamics of this process is studied with a single-pole parametrization of the hadronic form factor and the Flatté formula describing the 푎0(980) line shape in the differential decay rate. The product of the form factor 푓푎0 +(0) and the Cabibbo-Kobayashi-Maskawa matrix element |푉푐푑| is determined for the first time with the result 푓푎0 +(0)|푉푐푑|=0.126±0.013stat±0.003syst.
UR - https://www.scopus.com/record/display.uri?eid=2-s2.0-105004848505&origin=inward&txGid=f303322d3c1fe5309287ec238678d341
U2 - 10.1103/PhysRevD.111.L091501
DO - 10.1103/PhysRevD.111.L091501
M3 - Article
VL - 111
JO - Physical Review D
JF - Physical Review D
SN - 2470-0010
IS - 9
M1 - 091501
ER -
ID: 66565608