Analysis of the dynamics of the decay D+→KS0π0e+νe

BESIII Collaboration; M. Ablikim; M. N. Achasov; P. Adlarson; X. C. Ai; R. Aliberti; A. Amoroso; N. Kalantar-Nayestanaki; M. Kavatsyuk; J. Messchendorp

doi:10.1007/JHEP10(2024)199

Analysis of the dynamics of the decay D+→KS0π0e+νe

BESIII Collaboration, M. Ablikim, M. N. Achasov, P. Adlarson, X. C. Ai, R. Aliberti, A. Amoroso, N. Kalantar-Nayestanaki, M. Kavatsyuk, J. Messchendorp

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Abstract

The branching fraction of D+→KS0π0e+νe is measured for the first time using 7.93 fb−1 of e+e− annihilation data collected at the center-of-mass energy s = 3.773 GeV with the BESIII detector operating at the BEPCII collider, and is determined to be BD+→KS0π0e+νe=0.881±0.017stat.±0.016syst.%. Based on an analysis of the D+→KS0π0e+νe decay dynamics, we observe the S-wave and P-wave components with fractions of fS-wave = (6.13 ± 0.27stat.± 0.30syst.)% and fK¯=93.88±0.27stat.±0.29syst.%, respectively. From these results, we obtain the branching fractions BD+→KS0π0S−wavee+νe=5.41±0.35stat.±0.37syst.×10−4 and BD+→K¯∗8920e+νe=4.97±0.11stat.±0.12syst.%. In addition, the hadronic form-factor ratios of D+→K¯∗8920e+νe at q2 = 0, assuming a single-pole dominance parameterization, are determined to be rV=V0A10=1.43±0.07stat.±0.03syst. and r2=A20A10=0.72±0.06stat.±0.02syst..

Original language	English
Article number	199
Number of pages	27
Journal	Journal of High Energy Physics
Volume	2024
Issue number	10
DOIs	https://doi.org/10.1007/JHEP10(2024)199
Publication status	Published - Oct-2024

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@article{a4732428315a4278ae810ec9bcc96d18,

title = "Analysis of the dynamics of the decay D+→KS0π0e+νe",

abstract = "The branching fraction of D+→KS0π0e+νe is measured for the first time using 7.93 fb−1 of e+e− annihilation data collected at the center-of-mass energy s = 3.773 GeV with the BESIII detector operating at the BEPCII collider, and is determined to be BD+→KS0π0e+νe=0.881±0.017stat.±0.016syst.%. Based on an analysis of the D+→KS0π0e+νe decay dynamics, we observe the S-wave and P-wave components with fractions of fS-wave = (6.13 ± 0.27stat.± 0.30syst.)% and fK¯=93.88±0.27stat.±0.29syst.%, respectively. From these results, we obtain the branching fractions BD+→KS0π0S−wavee+νe=5.41±0.35stat.±0.37syst.×10−4 and BD+→K¯∗8920e+νe=4.97±0.11stat.±0.12syst.%. In addition, the hadronic form-factor ratios of D+→K¯∗8920e+νe at q2 = 0, assuming a single-pole dominance parameterization, are determined to be rV=V0A10=1.43±0.07stat.±0.03syst. and r2=A20A10=0.72±0.06stat.±0.02syst..",

author = "{BESIII Collaboration} and M. Ablikim and Achasov, {M. N.} and P. Adlarson and Ai, {X. C.} and R. Aliberti and A. Amoroso and N. Kalantar-Nayestanaki and M. Kavatsyuk and J. Messchendorp",

year = "2024",

month = oct,

doi = "10.1007/JHEP10(2024)199",

language = "English",

volume = "2024",

journal = "Journal of High Energy Physics",

issn = "1126-6708",

publisher = "Springer",

number = "10",

}

TY - JOUR

T1 - Analysis of the dynamics of the decay D+→KS0π0e+νe

AU - BESIII Collaboration

AU - Ablikim, M.

AU - Achasov, M. N.

AU - Adlarson, P.

AU - Ai, X. C.

AU - Aliberti, R.

AU - Amoroso, A.

AU - Kalantar-Nayestanaki, N.

AU - Kavatsyuk, M.

AU - Messchendorp, J.

PY - 2024/10

Y1 - 2024/10

N2 - The branching fraction of D+→KS0π0e+νe is measured for the first time using 7.93 fb−1 of e+e− annihilation data collected at the center-of-mass energy s = 3.773 GeV with the BESIII detector operating at the BEPCII collider, and is determined to be BD+→KS0π0e+νe=0.881±0.017stat.±0.016syst.%. Based on an analysis of the D+→KS0π0e+νe decay dynamics, we observe the S-wave and P-wave components with fractions of fS-wave = (6.13 ± 0.27stat.± 0.30syst.)% and fK¯=93.88±0.27stat.±0.29syst.%, respectively. From these results, we obtain the branching fractions BD+→KS0π0S−wavee+νe=5.41±0.35stat.±0.37syst.×10−4 and BD+→K¯∗8920e+νe=4.97±0.11stat.±0.12syst.%. In addition, the hadronic form-factor ratios of D+→K¯∗8920e+νe at q2 = 0, assuming a single-pole dominance parameterization, are determined to be rV=V0A10=1.43±0.07stat.±0.03syst. and r2=A20A10=0.72±0.06stat.±0.02syst..

AB - The branching fraction of D+→KS0π0e+νe is measured for the first time using 7.93 fb−1 of e+e− annihilation data collected at the center-of-mass energy s = 3.773 GeV with the BESIII detector operating at the BEPCII collider, and is determined to be BD+→KS0π0e+νe=0.881±0.017stat.±0.016syst.%. Based on an analysis of the D+→KS0π0e+νe decay dynamics, we observe the S-wave and P-wave components with fractions of fS-wave = (6.13 ± 0.27stat.± 0.30syst.)% and fK¯=93.88±0.27stat.±0.29syst.%, respectively. From these results, we obtain the branching fractions BD+→KS0π0S−wavee+νe=5.41±0.35stat.±0.37syst.×10−4 and BD+→K¯∗8920e+νe=4.97±0.11stat.±0.12syst.%. In addition, the hadronic form-factor ratios of D+→K¯∗8920e+νe at q2 = 0, assuming a single-pole dominance parameterization, are determined to be rV=V0A10=1.43±0.07stat.±0.03syst. and r2=A20A10=0.72±0.06stat.±0.02syst..

U2 - 10.1007/JHEP10(2024)199

DO - 10.1007/JHEP10(2024)199

M3 - Article

SN - 1126-6708

VL - 2024

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

IS - 10

M1 - 199

ER -

Analysis of the dynamics of the decay D+→KS0π0e+νe

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