Research output: Contribution to journal › Article › peer-review
Search for hyperon Δs= Δq violating decay Ξ0 → ς-e+νe. / BESIII Collaboration ; Мучной, Николай Юрьевич; Николаев, Иван Борисович.
In: Physical Review D, Vol. 107, No. 1, 012002, 19.01.2023.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Search for hyperon Δs= Δq violating decay Ξ0 → ς-e+νe
AU - BESIII Collaboration
AU - Achasov, M. N.
AU - Chen, C.
AU - Мучной, Николай Юрьевич
AU - Николаев, Иван Борисович
N1 - Search for hyperon ΔS=ΔQ violating decay Ξ0→Σ−e+νe / BESIII Collaboration // Physical Review D. – 2023. – Vol. 107, No. 1. – P. 012002. – DOI 10.1103/physrevd.107.012002.
PY - 2023/1/19
Y1 - 2023/1/19
N2 - Using a data sample of (1.0087±0.0044)×1010 J/ψ decay events collected with the BESIII detector at the center-of-mass energy of s=3.097 GeV, we present a search for the hyperon semileptonic decay Ξ0→ς-e+νe which violates the ΔS=ΔQ rule. No significant signal is observed, and the upper limit on the branching fraction B(Ξ0→ς-e+νe) is determined to be 1.6×10-4 at the 90% confidence level. This result improves the previous upper limit result by about one order of magnitude.
AB - Using a data sample of (1.0087±0.0044)×1010 J/ψ decay events collected with the BESIII detector at the center-of-mass energy of s=3.097 GeV, we present a search for the hyperon semileptonic decay Ξ0→ς-e+νe which violates the ΔS=ΔQ rule. No significant signal is observed, and the upper limit on the branching fraction B(Ξ0→ς-e+νe) is determined to be 1.6×10-4 at the 90% confidence level. This result improves the previous upper limit result by about one order of magnitude.
UR - https://www.mendeley.com/catalogue/62d2d27f-5e43-3553-88b4-45fb19d71858/
UR - https://www.elibrary.ru/item.asp?id=60533852
U2 - 10.1103/PhysRevD.107.012002
DO - 10.1103/PhysRevD.107.012002
M3 - Article
VL - 107
JO - Physical Review D
JF - Physical Review D
SN - 2470-0010
IS - 1
M1 - 012002
ER -
ID: 68341431