A. Lutz

activity

19992020

most citedObservation of a Broad Structure in the

π^{+} π^{-} J / ψ

Mass Spectrum around 4.26 GeV/

c^{2}

744 citations · 6.3k across the 127 of their papers we have counts for

collaborators

127 papers

eess.IV2020

Computational Enhancement of Molecularly Targeted Contrast-Enhanced Ultrasound: Application to Human Breast Tumor Imaging

Andrew A. Berlin, Mon Young, Ahmed El Kaffas +4

Molecularly targeted contrast enhanced ultrasound (mCEUS) is a clinically promising approach for early cancer detection through targeted imaging of VEGFR2 (KDR) receptors. We have…

hep-ex2020★ 6 cited

Precision measurement of the $B (Υ (3 S) \to τ^{+} τ^{-}) / B (Υ (3 S) \to μ^{+} μ^{-})$ ratio

J. P. Lees, V. Poireau, V. Tisserand +238

We report on a precision measurement of the ratio $R_{τ μ}^{Υ (3 S)} = B (Υ (3 S) \to τ^{+} τ^{-}) / B (Υ (3 S) \to μ^{+} μ^{-})$ using data collected with the BaBar detector at the SL…

hep-ex2016★ 1 cited

Tests of CPT symmetry in B0-B0bar mixing and in B0 -> c cbar K0 decays

BABAR Collaboration

Using the eight time dependences for the decays Upsilon(4S)-> B0 B0bar -> fj fk with the dacay into a flavor-specific state fj = ell+- X before or after the decay into a CP eigenst…

hep-ex2015★ 16 cited

Time-dependent analysis of $B^{0} \to K_{S}^{0} π^{-} π^{+} γ$ decays and studies of the $K^{+} π^{-} π^{+}$ system in $B^{+} \to K^{+} π^{-} π^{+} γ$ decays

P. del Amo Sanchez, others

We measure the time-dependent $C P$ asymmetry in the radiative-penguin decay $B^{0} \to K_{S}^{0} π^{-} π^{+} γ$ , using a sample of $471$ million $Υ(4S) \to B{\kern 0.18em\overline{\kern…

hep-ex2015★ 3 cited

Search for CP violation In B0-B0bar mixing using partial reconstruction of B0bar -> D*+Xl-nubar and kaon tagging

The BABAR Collaboration

We describe in detail a previously published measurement of CP violation induced by B0-anti B0 oscillations, based on an integrated luminosity of 425.7 fb-1 collected by the BABAR…

hep-ex2015★ 55 cited

Search for Long-Lived Particles in $e^{+} e^{-}$ Collisions

J. P. Lees, others

We present a search for a neutral, long-lived particle $L$ that is produced in $e^{+} e^{-}$ collisions and decays at a significant distance from the $e^{+} e^{-}$ interaction point into var…

hep-ex2014★ 3 cited

Search for new $π^{0}$ -like particles produced in association with a $τ$ -lepton pair

The BABAR Collaboration, J. P. Lees, others

We report on a search in $e^{+} e^{-}$ annihilations for new $π^{0}$ -like particles produced in association with a $τ$ -lepton pair. These objects, with a similar mass and similar decay mo…

hep-ex2014★ 19 cited

Study of CP asymmetry in B0-B0bar mixing with inclusive dilepton events

The BABAR Collaboration, J. P. Lees, others

We present a measurement of the asymmetry $A_{C P}$ between same-sign inclusive dilepton samples $ℓ^{+} ℓ^{+}$ and $ℓ^{-} ℓ^{-}$ ( $ℓ = e, μ$ ) from semileptonic B decays in Y(4…

hep-ex2014★ 19 cited

Antideuteron production in $Υ (n S)$ decays and in $e^{+} e^{-} \to q q$ at $s \approx 10.58 Ge V$

J. P. Lees

We present measurements of the inclusive production of antideuterons in $e^{+} e^{-}$ annihilation into hadrons at $\approx 10.58 Ge V$ center-of-mass energy and…

hep-ex2013★ 4 cited

Search for the decay $B^{0} \to Λ_{c}^{+} p p p$

The BABAR Collaboration

We report a search for the decay $B^{0} \to Λ_{c}^{+} p p p$ . Using a data sample of $471 \times 1 0^{6} B B$ pairs collect…

hep-ex2013★ 11 cited

Measurement of the B+ --> omega l+ nu branching fraction with semileptonically tagged B mesons

The BABAR Collaboration, J. P. Lees, others

We report a measurement of the branching fraction of the exclusive charmless semileptonic decay B+ --> omega l+ nu, where l is either an electron or a muon. We use samples of B+ me…

hep-ex2012★ 48 cited

Search for a Low-Mass Scalar Higgs Boson Decaying to a Tau Pair in Single-Photon Decays of Upsilon(1S)

J. P. Lees, others

We search for a low-mass scalar CP-odd Higgs boson, A0, produced in the radiative decay of the Upsilon resonance and decaying into a tau+tau- pair: Upsilon(1S)->gamma A0. The produ…

hep-ex2012★ 22 cited

Track Finding Efficiency in BaBar

T. Allmendinger, B. Bhuyan, D. N. Brown +24

We describe several studies to measure the charged track reconstruction efficiency and asymmetry of the BaBar detector. The first two studies measure the tracking efficiency of a c…

hep-ex2012★ 11 cited

Search for resonances decaying to eta_c pi+ pi- in two-photon interactions

The BABAR Collaboration, J. P. Lees, others

We report a study of the process gamma gamma -> X -> eta_c pi+ pi-, where X stands for one of the resonances chi_{c2}(1P), eta_c(2S), X(3872), X(3915), or chi_{c2}(2P). The analysi…

hep-ex2011★ 4 cited

Observation of the baryonic B decay B0bar --> Lambda_c^+ anti-Lambda K-

The BABAR Collaboration, J. P. Lees, V. Poireau +384

We report the observation of the baryonic B decay B0bar --> Lambda_c^+ anti-Lambda K- with a significance larger than 7 standard deviations based on 471x10^6$ BBbar pairs collected…

hep-ex2011★ 19 cited

Study of Upsilon(3S,2S) -> eta Upsilon(1S) and Upsilon(3S,2S) -> pi+pi- Upsilon(1S) hadronic trasitions

The BABAR Collaboration, J. P. Lees, others

We study the Upsilon(3S,2S)->eta Upsilon(1S) and Upsilon(3S,2S)->pi+pi- Upsilon(1S) transitions with 122 million Upsilon(3S) and 100 million Upsilon(2S) mesons collected by the BaB…

hep-ex2011★ 37 cited

Evidence for the h_b(1P) meson in the decay Upsilon(3S) --> pi0 h_b(1P)

The BABAR Collaboration, J. P. Lees, V. Poireau +406

Using a sample of 122 million Upsilon(3S) events recorded with the BaBar detector at the PEP-II asymmetric-energy e+e- collider at SLAC, we search for the $h_{b} (1 P)$ spin-singlet pa…

hep-ex2010★ 11 cited

Measurements of branching fractions, polarizations, and direct CP-violation asymmetries in B+ -> rho0 K+ and B+ -> f0(980)K+ decays

P. del Amo Sanchez

We present measurements of the branching fractions, longitudinal polarization, and direct CP-violation asymmetries for the decays B+ -> rho0 K*+ and B+ -> f0(980) K*+ with a sample…

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★ 2 cited

Correlated leading baryon-antibaryon production in e+e- --> ccbar --> Lambda_c+ antiLambda_c- X

The BABAR Collaboration, B. Aubert

We present a study of 649 \pm 35 e+e- --> ccbar events produced at sqrt{s}~10.6 GeV containing both a Lambda_c baryon and a Lambda_c antibaryon. The number observed is roughly four…

hep-ex2010★ 4 cited

Search for B+ -> D+ K0 and B+-> D+ K*0 decays

The BABAR Collaboration, P. del Amo Sanchez

We report a search for the rare decays $B^{+} \to D^{+} K^{0}$ and $B^{+} \to D^{+} K^{* 0}$ in an event sample of approximately 465 million $B B ˉ$ pairs collected with the BaBar detector…

hep-ex2010★ 12 cited

B-meson decays to eta' rho, eta' f0, and eta' K*

The BaBar Collaboration, P. del Amo Sanchez

We present measurements of B-meson decays to the final states eta'rho, eta'f0, and eta'K*, where K* stands for a vector, scalar, or tensor strange meson. We observe a significant s…

hep-ex2010★ 103 cited

Observation of the chi_c2(2P) meson in the reaction gamma gamma -> D Dbar at BABAR

The BABAR Collaboration, B. Aubert

A search for the Z(3930) resonance in gamma gamma production of the DDbar system has been performed using a data sample corresponding to an integrated luminosity of 384 fb^-1 recor…

hep-ex2009★ 41 cited

Measurements of the $τ$ Mass and Mass Difference of the $τ^{+}$ and $τ^{-}$ } at BaBar

The BaBar Collaboration, B. Aubert

We present the result from a precision measurement of the mass of the $τ$ lepton, $M_{τ}$ , based on $423 f b^{- 1}$ of data recorded at the $Υ (4 S)$ resonance with the BaBar detector. U…

Computational Enhancement of Molecularly Targeted Contrast-Enhanced Ultrasound: Application to Human Breast Tumor Imaging

Precision measurement of the B(Υ(3S)→τ+τ−)/B(Υ(3S)→μ+μ−) ratio

Tests of CPT symmetry in B0-B0bar mixing and in B0 -> c cbar K0 decays

Time-dependent analysis of B0→KS0​π−π+γ decays and studies of the K+π−π+ system in B+→K+π−π+γ decays

Search for CP violation In B0-B0bar mixing using partial reconstruction of B0bar -> D*+Xl-nubar and kaon tagging

Search for Long-Lived Particles in e+e− Collisions

Search for new π0-like particles produced in association with a τ-lepton pair

Study of CP asymmetry in B0-B0bar mixing with inclusive dilepton events

Antideuteron production in Υ(nS) decays and in e+e−→qq​ at s​≈10.58GeV

Search for the decay B0→Λc+​p​pp​

Measurement of the B+ --> omega l+ nu branching fraction with semileptonically tagged B mesons

Search for a Low-Mass Scalar Higgs Boson Decaying to a Tau Pair in Single-Photon Decays of Upsilon(1S)

Track Finding Efficiency in BaBar

Search for resonances decaying to eta_c pi+ pi- in two-photon interactions

Observation of the baryonic B decay B0bar --> Lambda_c^+ anti-Lambda K-

Study of Upsilon(3S,2S) -> eta Upsilon(1S) and Upsilon(3S,2S) -> pi+pi- Upsilon(1S) hadronic trasitions

Evidence for the h_b(1P) meson in the decay Upsilon(3S) --> pi0 h_b(1P)

Measurements of branching fractions, polarizations, and direct CP-violation asymmetries in B+ -> rho0 K*+ and B+ -> f0(980)K*+ decays

Search for the Rare Decay B->K nu nubar

Correlated leading baryon-antibaryon production in e+e- --> ccbar --> Lambda_c+ antiLambda_c- X

Search for B+ -> D+ K0 and B+-> D+ K*0 decays

B-meson decays to eta' rho, eta' f0, and eta' K*

Observation of the chi_c2(2P) meson in the reaction gamma gamma -> D Dbar at BABAR

Measurements of the τ Mass and Mass Difference of the τ+ and τ−} at BaBar

Precision measurement of the $B (Υ (3 S) \to τ^{+} τ^{-}) / B (Υ (3 S) \to μ^{+} μ^{-})$ ratio

Time-dependent analysis of $B^{0} \to K_{S}^{0} π^{-} π^{+} γ$ decays and studies of the $K^{+} π^{-} π^{+}$ system in $B^{+} \to K^{+} π^{-} π^{+} γ$ decays

Search for Long-Lived Particles in $e^{+} e^{-}$ Collisions

Search for new $π^{0}$ -like particles produced in association with a $τ$ -lepton pair

Antideuteron production in $Υ (n S)$ decays and in $e^{+} e^{-} \to q q$ at $s \approx 10.58 Ge V$

Search for the decay $B^{0} \to Λ_{c}^{+} p p p$

Measurements of branching fractions, polarizations, and direct CP-violation asymmetries in B+ -> rho0 K+ and B+ -> f0(980)K+ decays

Measurements of the $τ$ Mass and Mass Difference of the $τ^{+}$ and $τ^{-}$ } at BaBar