J. A. Ernst

activity

20062018

most citedMeasurements of branching fractions, rate asymmetries, and angular distributions in the rare decays B --> Kl+l- and B --> K*l+l-

185 citations · 1k across the 28 of their papers we have counts for

collaborators

28 papers

hep-ex2018★ 39 cited

Measurement of the spectral function for the $τ^{-} \to K^{-} K_{S} ν_{τ}$ decay

The BaBar Collaboration

The decay $τ^{-} \to K^{-} K_{S} ν_{τ}$ has been studied using $430 \times 1 0^{6}$ $e^{+} e^{-} \to τ^{+} τ^{-}$ events produced at a center-of-mass energy around 10.6 GeV at the PEP-II collider and stu…

hep-ex2018★ 11 cited

First evidence for $cos 2 β > 0$ and resolution of the CKM Unitarity Triangle ambiguity by a time-dependent Dalitz plot analysis of $B^{0} \to D^{(*)} h^{0}$ with $D \to K_{S}^{0} π^{+} π^{-}$ decays

The BaBar, Belle Collaborations, : +422

We present first evidence that the cosine of the CP-violating weak phase $2 β$ is positive, and hence exclude trigonometric multifold solutions of the CKM Unitarity Triangle using a…

hep-ex2018★ 10 cited

Study of $Υ (1 S)$ Radiative Decays to $γ π^{+} π^{-}$ and $γ K^{+} K^{-}$

J. P. Lees

We study the $Υ (1 S)$ radiative decays to $γ π^{+} π^{-}$ and $γ K^{+} K^{-}$ using data recorded with the BaBar detector operating at the SLAC PEP-II asymmetric-energy $e^{+} e^{-}$ collider at…

hep-ex2012★ 52 cited

Measurement of D0-D0bar Mixing and CP Violation in Two-Body D0 Decays

J. P. Lees, others

We present a measurement of D0-D0bar mixing and CP violation using the ratio of lifetimes simultaneously extracted from a sample of D0 mesons produced through the flavor-tagged pro…

hep-ex2011★ 7 cited

Search for Bbar --> Lambda_c+ X l- nu Decays in Events With a Fully Reconstructed B Meson

The BABAR Collaboration, J. P. Lees

We present a search for semileptonic B decays to the charmed baryon Lambda_c+ based on 420 fb-1 of data collected at the Upsilon(4S) resonance with the BABAR detector at the PEP-II…

hep-ex2010★ 42 cited

Measurement of the B^0 --> pi^-ell^+nu and B^+ --> eta^(')ell^+nu Branching Fractions, the B^0 --> pi^-ell^+nu and B^+ --> eta ell^+nu Form-Factor Shapes, and Determination of |V_{ub}|

The BABAR Collaboration, P. del Amo Sanchez etal

We report the results of a study of the exclusive charmless semileptonic decays, $B^{+} \to η^{(')} ℓ^{+} ν$ and $B^{0} \to π^{-} ℓ^{+} ν$ , undertaken wi…

hep-ex2008★ 13 cited

Search for Lepton Flavour Violating Decays $τ \to ℓ K_{S}^{0}$ with the BaBar Experiment

The BaBar Collaboration, B. Aubert

A search for the lepton flavour violating decays $τ^{-} \to l^{-} K_{S}^{0}$ ( $l = e$ or $μ$ ) has been performed using a data sample corresponding to an integrated lum…

hep-ex2007★ 81 cited

Search for CP Violation in the Decays D0 --> K- K+ and D0 --> pi- pi+

The BaBar Collaboration, B. Aubert

We measure CP-violating asymmetries of neutral charmed mesons in the modes D0 --> K- K+ and D0 --> pi- pi+ with the highest precision to date by using D0 --> K- pi+ decays to corre…

hep-ex2007★ 42 cited