K. J. Knoepfel

most citedMeasurement of the gamma gamma* --> eta_c transition form factor

58 citations · 157 across the 4 of their papers we have counts for

collaborators

4 papers

hep-ex2010

Studies of tau- -> eta.K-.nu and tau- -> eta.pi-.nu at BaBar and a search for a second-class current

The BaBar Collaboration, P. del Amo Sanchez

We report on analyses of tau lepton decays $τ^{-} \to η K^{-} ν_{τ}$ and $τ^{-} \to η π^{-} ν_{τ}$ , with $η \to π^{+} π^{-} π^{0}$ , using 470 fb $^{- 1}$ of data from the Babar experiment at PEP-II, coll…

hep-ex2010★ 53 cited

Search for the Rare Decay B->K nu nubar

The BABAR Collaboration, P. del Amo Sanchez

We present a search for the rare decays B+ -> K+ nu nubar and B0 -> K0 nu nubar using 459 million BBbar pairs collected with the BaBar detector at the SLAC National Accelerator Lab…

hep-ex2010★ 46 cited

Measurement of the Absolute Branching Fractions for $D_{s}^{-} \to ℓ^{-} ν ˉ_{ℓ}$ and Extraction of the Decay Constant $f_{D_{s}}$

The BABAR Collaboration, P. del Amo Sanches

The absolute branching fractions for the decays $D_{s}^{-} \to ℓ^{-} ν ˉ_{ℓ}$ ( $ℓ = e$ , $μ$ , or $τ$ ) are measured using a data sample corresponding to an integrated lum…

hep-ex2010★ 58 cited

Measurement of the gamma gamma* --> eta_c transition form factor

The BABAR Collaboration, J. P. Lees

We study the reaction e+e- --> e+e- eta_c, eta_c --> K_S K+- pi-+ and obtain eta_c mass and width values 2982.2+-0.4+-1.6 MeV/c^2 and 31.7+-1.2+-0.8 MeV, respectively. We find Gamm…

Studies of tau- -> eta.K-.nu and tau- -> eta.pi-.nu at BaBar and a search for a second-class current

Search for the Rare Decay B->K nu nubar

Measurement of the Absolute Branching Fractions for Ds−​→ℓ−νˉℓ​ and Extraction of the Decay Constant fDs​​

Measurement of the gamma gamma* --> eta_c transition form factor

Measurement of the Absolute Branching Fractions for $D_{s}^{-} \to ℓ^{-} ν ˉ_{ℓ}$ and Extraction of the Decay Constant $f_{D_{s}}$