Search for the hyperon semileptonic decay Ξ−→Ξ0e−¯¯¯νe

BESIII Collaboration; M. Ablikim; M.N. Achasov; P. Adlarson; S. Ahmed; M. Albrecht; R. Aliberti; A. Amoroso; Nasser Kalantar-Nayestanaki; Rosa Kappert; Myroslav Kavatsyuk; Johan Messchendorp; Viktor Rodin

doi:10.1103/PhysRevD.104.072007

Search for the hyperon semileptonic decay Ξ⁻→Ξ⁰e⁻¯¯¯ν_e

BESIII Collaboration, M. Ablikim, M.N. Achasov, P. Adlarson, S. Ahmed, M. Albrecht, R. Aliberti, A. Amoroso, Nasser Kalantar-Nayestanaki, Rosa Kappert, Myroslav Kavatsyuk, Johan Messchendorp, Viktor Rodin

Energy and Sustainability Research Institute Groningen

Research output: Contribution to journal › Article › Academic › peer-review

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Abstract

Using (10.087±0.044)×109 J/ψ events collected by the Beijing Spectrum III (BESIII) detector at the Beijing Electron Positron Collider II (BEPCII) collider, we search for the hyperon semileptonic decay Ξ−→Ξ0e−¯νe. No significant signal is observed and the upper limit on the branching fraction B(Ξ−→Ξ0e−¯νe) is set to be 2.59×10−4 at 90% confidence level. This result is one order of magnitude more strict than the previous best limit.

Original language	English
Article number	072007
Number of pages	8
Journal	Physical Review D
Volume	104
Issue number	7
DOIs	https://doi.org/10.1103/PhysRevD.104.072007
Publication status	Published - 1-Oct-2021

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title = "Search for the hyperon semileptonic decay Ξ−→Ξ0e−¯¯¯νe",

abstract = "Using (10.087±0.044)×109 J/ψ events collected by the Beijing Spectrum III (BESIII) detector at the Beijing Electron Positron Collider II (BEPCII) collider, we search for the hyperon semileptonic decay Ξ−→Ξ0e−¯νe. No significant signal is observed and the upper limit on the branching fraction B(Ξ−→Ξ0e−¯νe) is set to be 2.59×10−4 at 90% confidence level. This result is one order of magnitude more strict than the previous best limit.",

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doi = "10.1103/PhysRevD.104.072007",

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T1 - Search for the hyperon semileptonic decay Ξ−→Ξ0e−¯¯¯νe

AU - BESIII Collaboration

AU - Ablikim, M.

AU - Achasov, M.N.

AU - Adlarson, P.

AU - Ahmed, S.

AU - Albrecht, M.

AU - Aliberti, R.

AU - Amoroso, A.

AU - Kalantar-Nayestanaki, Nasser

AU - Kappert, Rosa

AU - Kavatsyuk, Myroslav

AU - Messchendorp, Johan

AU - Rodin, Viktor

PY - 2021/10/1

Y1 - 2021/10/1

N2 - Using (10.087±0.044)×109 J/ψ events collected by the Beijing Spectrum III (BESIII) detector at the Beijing Electron Positron Collider II (BEPCII) collider, we search for the hyperon semileptonic decay Ξ−→Ξ0e−¯νe. No significant signal is observed and the upper limit on the branching fraction B(Ξ−→Ξ0e−¯νe) is set to be 2.59×10−4 at 90% confidence level. This result is one order of magnitude more strict than the previous best limit.

AB - Using (10.087±0.044)×109 J/ψ events collected by the Beijing Spectrum III (BESIII) detector at the Beijing Electron Positron Collider II (BEPCII) collider, we search for the hyperon semileptonic decay Ξ−→Ξ0e−¯νe. No significant signal is observed and the upper limit on the branching fraction B(Ξ−→Ξ0e−¯νe) is set to be 2.59×10−4 at 90% confidence level. This result is one order of magnitude more strict than the previous best limit.

U2 - 10.1103/PhysRevD.104.072007

DO - 10.1103/PhysRevD.104.072007

M3 - Article

SN - 1550-7998

VL - 104

JO - Physical Review D

JF - Physical Review D

IS - 7

M1 - 072007

ER -