H. M. Lacker

activity

20062020

most citedMeasurement of the q2 dependence of the Hadronic Form Factor in D0 --> K- e+ nu_e decays

71 citations · 346 across the 9 of their papers we have counts for

collaborators

9 papers

hep-ex2020★ 35 cited

Search for a Dark Leptophilic Scalar at BABAR

The BABAR Collaboration

Many scenarios of physics beyond the Standard Model predict the existence of new gauge singlets, which might be substantially lighter than the weak scale. The experimental constrai…

hep-ex2018★ 28 cited

Measurement of the $γ^{⋆} γ^{⋆} \to η^{'}$ transition form factor

The BaBar collaboration

We study the process $e^{+} e^{-} \to e^{+} e^{-} η^{'}$ in the double-tag mode and measure for the first time the $γ^{⋆} γ^{⋆} \to η^{'}$ transition form factor $F_{η^{'}} (Q_{1}^{2}, Q_{2}^{2})$ in th…

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★ 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-ex2018★ 45 cited

Study of the process $e^{+} e^{-} \to π^{+} π^{-} η$ using initial state radiation

The BABAR Collaboration

We study the process $e^{+} e^{-} \to π^{+} π^{-} η γ$ , where the photon is radiated from the initial state. About 8000 fully reconstructed events of this process are selected from the BaBar d…

hep-ex2017★ 42 cited

Measurement of the $e^{+} e^{-} \to π^{+} π^{-} π^{0} π^{0}$ cross section using initial-state radiation at BaBar

The BaBar Collaboration

The process $e^{+} e^{-} \to π^{+} π^{-} 2 π^{0} γ$ is investigated by means of the initial-state radiation technique, where a photon is emitted from the incoming electron or positron. Using $454…

hep-ex2015★ 18 cited

Measurement of ISR-FSR interference in the processes e+ e- --> mu+ mu- gamma and e+ e- --> pi+ pi- gamma

BABAR Collaboration

Charge asymmetry in processes e+ e- --> mu+ mu- gamma and e+ e- --> pi+ pi- gamma is measured using 232 fb-1 of data collected with the BABAR detector at center-of-mass energies ne…

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…

hep-ex2006★ 71 cited

Measurement of the q2 dependence of the Hadronic Form Factor in D0 --> K- e+ nu_e decays

The BABAR Collaboration, B. Aubert

We present a preliminary measurement of the q2 dependence of the D0 --> K- e+ nu_e decay rate. This rate is proportional to the hadronic form factor squared, specified by a single…

Search for a Dark Leptophilic Scalar at BABAR

Measurement of the γ⋆γ⋆→η′ transition form factor

Measurement of the spectral function for the τ−→K−KS​ντ​ decay

Study of Υ(1S) Radiative Decays to γπ+π− and γK+K−

Study of the process e+e−→π+π−η using initial state radiation

Measurement of the e+e−→π+π−π0π0 cross section using initial-state radiation at BaBar