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Search for the semi-leptonic decays [formula omitted] and [formula omitted].
- Source :
-
Physics Letters B . Aug2023, Vol. 843, pN.PAG-N.PAG. 1p. - Publication Year :
- 2023
-
Abstract
- We search for the semi-leptonic decays Λ c + → Λ π + π − e + ν e and Λ c + → p K S 0 π − e + ν e in a sample of 4.5 fb − 1 of e + e − annihilation data collected in the center-of-mass energy region between 4.600 GeV and 4.699 GeV by the BESIII detector at the BEPCII. No significant signals are observed, and the upper limits on the decay branching fractions are set to be B (Λ c + → Λ π + π − e + ν e) < 3.9 × 10 − 4 and B (Λ c + → p K S 0 π − e + ν e) < 3.3 × 10 − 4 at the 90% confidence level, respectively. [ABSTRACT FROM AUTHOR]
- Subjects :
- *ACQUISITION of data
*PROTON-proton interactions
*DETECTORS
*SIGNALS & signaling
Subjects
Details
- Language :
- English
- ISSN :
- 03702693
- Volume :
- 843
- Database :
- Academic Search Index
- Journal :
- Physics Letters B
- Publication Type :
- Academic Journal
- Accession number :
- 165040430
- Full Text :
- https://doi.org/10.1016/j.physletb.2023.137993