Using (448.1 +/- 2.9) x 10(6) psi(3686) events collected with the BESIII detector, we perform the first search for the weak baryonic decay psi(3686) Lambda(+)(c)(Sigma) over bar (-) +c.c. The analysis procedure is optimized using a blinded method. No significant signal is observed, and the upper limit on the branching fraction (B) of psi(3686)-> Lambda(+)(c)(Sigma) over bar (-) +c.c. is set as 1.4 x 10(-5) at the 90% confidence level.

Search for the weak decay *

H. S. Chen;F. De Mori;G. Felici;Y. Jiang;C. Li;C. Li;C. H. Li;G. Li;A. Mangoni;S. Pacetti
;
S. Spataro;G. Wilkinson;Y. Zhang;J. Zhu;
2023

Abstract

Using (448.1 +/- 2.9) x 10(6) psi(3686) events collected with the BESIII detector, we perform the first search for the weak baryonic decay psi(3686) Lambda(+)(c)(Sigma) over bar (-) +c.c. The analysis procedure is optimized using a blinded method. No significant signal is observed, and the upper limit on the branching fraction (B) of psi(3686)-> Lambda(+)(c)(Sigma) over bar (-) +c.c. is set as 1.4 x 10(-5) at the 90% confidence level.
2023
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11391/1548967
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