Search for D0 →k-ηe+νe, D+ → KS0 ηe+νe and D+ →ηηe+νe decays

BESIII Collaboration; N. Kalantar-Nayestanaki; M. Kavatsyuk; J. Messchendorp

doi:10.1103/PhysRevD.110.112001

Search for D0 →k-ηe+νe, D+ → KS0 ηe+νe and D+ →ηηe+νe decays

BESIII Collaboration, N. Kalantar-Nayestanaki, M. Kavatsyuk, J. Messchendorp

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Abstract

By analyzing e+e- annihilation data corresponding to an integrated luminosity of 7.93 fb-1, collected at the center-of-mass energy of 3.773 GeV with the BESIII detector, we search for the semileptonic decays D0→K-ηe+νe, D+→KS0ηe+νe and D+→ηηe+νe for the first time. We present evidence for D0→K-ηe+νe with a significance of 3.3σ. The branching fraction of D0→K-ηe+νe is measured to be (0.84-0.34+0.29±0.22)×10-4. No significant signals are observed for the decays D+→KS0ηe+νe and D+→ηηe+νe and we set the upper limits on their branching fractions.

Original language	English
Article number	112001
Number of pages	11
Journal	Physical Review D
Volume	110
Issue number	11
DOIs	https://doi.org/10.1103/PhysRevD.110.112001
Publication status	Published - Dec-2024

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10.1103/PhysRevD.110.112001Licence: CC BY

Search for 𝐷0 →𝐾−⁢𝜂⁢𝑒+⁢𝜈𝑒, 𝐷+ →𝐾0 𝑆⁢𝜂⁢𝑒+⁢𝜈𝑒 and 𝐷+ →𝜂⁢𝜂⁢𝑒+⁢𝜈𝑒 decaysFinal publisher's version, 483 KBLicence: CC BY

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@article{2dbcae319e234c72a4b6d2f4593dd3f7,

title = "Search for D0 →k-ηe+νe, D+ → KS0 ηe+νe and D+ →ηηe+νe decays",

abstract = "By analyzing e+e- annihilation data corresponding to an integrated luminosity of 7.93 fb-1, collected at the center-of-mass energy of 3.773 GeV with the BESIII detector, we search for the semileptonic decays D0→K-ηe+νe, D+→KS0ηe+νe and D+→ηηe+νe for the first time. We present evidence for D0→K-ηe+νe with a significance of 3.3σ. The branching fraction of D0→K-ηe+νe is measured to be (0.84-0.34+0.29±0.22)×10-4. No significant signals are observed for the decays D+→KS0ηe+νe and D+→ηηe+νe and we set the upper limits on their branching fractions.",

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

year = "2024",

month = dec,

doi = "10.1103/PhysRevD.110.112001",

language = "English",

volume = "110",

journal = "Physical Review D",

issn = "1550-7998",

publisher = "AMER PHYSICAL SOC",

number = "11",

}

TY - JOUR

T1 - Search for D0 →k-ηe+νe, D+ → KS0 ηe+νe and D+ →ηηe+νe decays

AU - BESIII Collaboration

AU - Ablikim, M.

AU - Achasov, M.N.

AU - Adlarson, P.

AU - Ai, X. C.

AU - Aliberti, R.

AU - Amoroso, A.

AU - An, M. R.

AU - An, Q.

AU - Bai, Y.

AU - Bakina, O.

AU - Kalantar-Nayestanaki, N.

AU - Kavatsyuk, M.

AU - Messchendorp, J.

PY - 2024/12

Y1 - 2024/12

N2 - By analyzing e+e- annihilation data corresponding to an integrated luminosity of 7.93 fb-1, collected at the center-of-mass energy of 3.773 GeV with the BESIII detector, we search for the semileptonic decays D0→K-ηe+νe, D+→KS0ηe+νe and D+→ηηe+νe for the first time. We present evidence for D0→K-ηe+νe with a significance of 3.3σ. The branching fraction of D0→K-ηe+νe is measured to be (0.84-0.34+0.29±0.22)×10-4. No significant signals are observed for the decays D+→KS0ηe+νe and D+→ηηe+νe and we set the upper limits on their branching fractions.

AB - By analyzing e+e- annihilation data corresponding to an integrated luminosity of 7.93 fb-1, collected at the center-of-mass energy of 3.773 GeV with the BESIII detector, we search for the semileptonic decays D0→K-ηe+νe, D+→KS0ηe+νe and D+→ηηe+νe for the first time. We present evidence for D0→K-ηe+νe with a significance of 3.3σ. The branching fraction of D0→K-ηe+νe is measured to be (0.84-0.34+0.29±0.22)×10-4. No significant signals are observed for the decays D+→KS0ηe+νe and D+→ηηe+νe and we set the upper limits on their branching fractions.

U2 - 10.1103/PhysRevD.110.112001

DO - 10.1103/PhysRevD.110.112001

M3 - Article

SN - 1550-7998

VL - 110

JO - Physical Review D

JF - Physical Review D

IS - 11

M1 - 112001

ER -

Search for D0 →k-ηe+νe, D+ → KS0 ηe+νe and D+ →ηηe+νe decays

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