We report the first measurement of the absolute branching fraction for Λ+c→Λe+νe. This measurement is based on 567 pb−1 of e+e− annihilation data produced at s√=4.599 GeV, which is just above the Λ+cΛ¯−c threshold. The data were collected with the BESIII detector at the BEPCII storage rings. The branching fraction is determined to be B(Λ+c→Λe+νe)=[3.63±0.38(stat)±0.20(syst)]%, representing a significant improvement in precision over the current indirect determination. As the branching fraction for Λ+c→Λe+νe is the benchmark for those of other Λ+c semileptonic channels, our result provides a unique test of different theoretical models, which is the most stringent to date
We report the first measurement of the absolute branching fraction for Lambda(+)(c) -> Lambda e(+)nu...
Using a data sample of e+e- collisions corresponding to an integrated luminosity of 567 pb-1 collect...
We report the first measurement of absolute hadronic branching fractions of Λc+ baryon at the Λc+Λ¯c...
We report the first measurement of the absolute branching fraction for Λ+c→Λe+νe. This measurement i...
We report the first measurement of the absolute branching fraction for Λ_{c}^{+}→Λe^{+}ν_{e}. This m...
We report the first measurement of the absolute branching fraction for Λc+→Λμ+νμ. This measurement i...
We report the first measurement of the absolute branching fraction for Λc+ --> Λe+nu_e. This meas...
We report the first measurement of the absolute branching fraction for View the MathML sourceΛc+→Λμ+...
The absolute branching fraction of Λ→pμ-ν¯μ is reported for the first time based on an e+e- annihila...
We study the decays Λc+→Ληπ+ and Σ(1385)+η based on Λc+Λ̄c- pairs produced in e+e- collisions at a c...
Based on 586 pb−1 of e+e− annihilation data collected at a center-of-mass energy of s=4.6GeV with th...
Based on an e+e− collision data sample corresponding to an integrated luminosity of 567 pb−1 taken ...
We report the first measurements of absolute branching fractions for the W-exchange-only processes Λ...
We report the first observation of the decay Λc+→Σ−π+π+π0, based on data obtained in e+e− annihilati...
Using a dataset of 6.32 fb-1 of e+e- annihilation data collected with the BESIII detector at center-...
We report the first measurement of the absolute branching fraction for Lambda(+)(c) -> Lambda e(+)nu...
Using a data sample of e+e- collisions corresponding to an integrated luminosity of 567 pb-1 collect...
We report the first measurement of absolute hadronic branching fractions of Λc+ baryon at the Λc+Λ¯c...
We report the first measurement of the absolute branching fraction for Λ+c→Λe+νe. This measurement i...
We report the first measurement of the absolute branching fraction for Λ_{c}^{+}→Λe^{+}ν_{e}. This m...
We report the first measurement of the absolute branching fraction for Λc+→Λμ+νμ. This measurement i...
We report the first measurement of the absolute branching fraction for Λc+ --> Λe+nu_e. This meas...
We report the first measurement of the absolute branching fraction for View the MathML sourceΛc+→Λμ+...
The absolute branching fraction of Λ→pμ-ν¯μ is reported for the first time based on an e+e- annihila...
We study the decays Λc+→Ληπ+ and Σ(1385)+η based on Λc+Λ̄c- pairs produced in e+e- collisions at a c...
Based on 586 pb−1 of e+e− annihilation data collected at a center-of-mass energy of s=4.6GeV with th...
Based on an e+e− collision data sample corresponding to an integrated luminosity of 567 pb−1 taken ...
We report the first measurements of absolute branching fractions for the W-exchange-only processes Λ...
We report the first observation of the decay Λc+→Σ−π+π+π0, based on data obtained in e+e− annihilati...
Using a dataset of 6.32 fb-1 of e+e- annihilation data collected with the BESIII detector at center-...
We report the first measurement of the absolute branching fraction for Lambda(+)(c) -> Lambda e(+)nu...
Using a data sample of e+e- collisions corresponding to an integrated luminosity of 567 pb-1 collect...
We report the first measurement of absolute hadronic branching fractions of Λc+ baryon at the Λc+Λ¯c...