We have studied the leptonic decay Ds+→τ+ντ, via the decay channel τ+→e+νeν̄τ, using a sample of tagged Ds+ decays collected near the Ds*±Ds peak production energy in e+e- collisions with the CLEO-c detector. We obtain B(Ds+→τ+ντ)=( 5.30±0.47±0.22)% and determine the decay constant fDs=(252.5±11.1± 5.2)MeV, where the first uncertainties are statistical and the second are systematic. © 2009 The American Physical Society
The purely leptonic decays Ds→τν and Ds→μν are studied in a sample of four million hadronic Z decays...
We measure the absolute branching fraction for D 0 → K − π + using partial reconstruction of ¯¯¯ B 0...
We measure the absolute branching fraction for D0\u2192K-\u3c0+ using partial reconstruction of B\u3...
Using a dataset of 6.32 fb-1 of e+e- annihilation data collected with the BESIII detector at center-...
The absolute branching fractions for the decays Ds-\u2192\u2113-\u3bd\u305 \u2113 (\u2113=e, \u3bc, ...
By analyzing 482 pb-1 of e+e- collision data collected at the center-of-mass energy s=4.009 GeV with...
The absolute branching fractions for the decays Ds-→ℓ -ν̄ℓ (ℓ=e, μ, or τ) are measured using a data ...
By analyzing 6.32 fb − 1 of e+ e− annihilation data collected at the center-of-mass energies between...
Analyzing 600pb-1 of e+e- collisions at 4170 MeV center-of-mass energy with the CLEO-c detector, we ...
By analyzing 6.32 fb-1 of e+e- annihilation data collected at the center-of-mass energies between 4....
Using 482 pb-1 of e+e- collision data collected at a center-of-mass energy of s=4.009 GeV with the B...
Using a 3.19 fb-1 data sample collected at an e+e- center-of-mass energy of Ecm=4.178 GeV with the B...
We measure the absolute branching fraction for D0→K-π+ using partial reconstruction of B̅ 0→D*+Xℓ-ν̅...
The absolute branching fractions for the decays Ds-→ℓ-ν̅ ℓ (ℓ=e, μ, or τ) are measured using a data ...
The absolute branching fractions for the decays Ds--->ℓ-[nu] ℓ (ℓ=e, mu, or tau) are measured using ...
The purely leptonic decays Ds→τν and Ds→μν are studied in a sample of four million hadronic Z decays...
We measure the absolute branching fraction for D 0 → K − π + using partial reconstruction of ¯¯¯ B 0...
We measure the absolute branching fraction for D0\u2192K-\u3c0+ using partial reconstruction of B\u3...
Using a dataset of 6.32 fb-1 of e+e- annihilation data collected with the BESIII detector at center-...
The absolute branching fractions for the decays Ds-\u2192\u2113-\u3bd\u305 \u2113 (\u2113=e, \u3bc, ...
By analyzing 482 pb-1 of e+e- collision data collected at the center-of-mass energy s=4.009 GeV with...
The absolute branching fractions for the decays Ds-→ℓ -ν̄ℓ (ℓ=e, μ, or τ) are measured using a data ...
By analyzing 6.32 fb − 1 of e+ e− annihilation data collected at the center-of-mass energies between...
Analyzing 600pb-1 of e+e- collisions at 4170 MeV center-of-mass energy with the CLEO-c detector, we ...
By analyzing 6.32 fb-1 of e+e- annihilation data collected at the center-of-mass energies between 4....
Using 482 pb-1 of e+e- collision data collected at a center-of-mass energy of s=4.009 GeV with the B...
Using a 3.19 fb-1 data sample collected at an e+e- center-of-mass energy of Ecm=4.178 GeV with the B...
We measure the absolute branching fraction for D0→K-π+ using partial reconstruction of B̅ 0→D*+Xℓ-ν̅...
The absolute branching fractions for the decays Ds-→ℓ-ν̅ ℓ (ℓ=e, μ, or τ) are measured using a data ...
The absolute branching fractions for the decays Ds--->ℓ-[nu] ℓ (ℓ=e, mu, or tau) are measured using ...
The purely leptonic decays Ds→τν and Ds→μν are studied in a sample of four million hadronic Z decays...
We measure the absolute branching fraction for D 0 → K − π + using partial reconstruction of ¯¯¯ B 0...
We measure the absolute branching fraction for D0\u2192K-\u3c0+ using partial reconstruction of B\u3...