A.-M. Lutz

activity

19962025

most citedObservation of CP violation in the B^0 meson system

562 citations · 10.1k across the 216 of their papers we have counts for

collaborators

216 papers

hep-ex2025

Study of $χ_{b 1, 2} (2 P) \to ω Υ (1 S)$ transitions in $Υ (3 S) \to γ χ_{b 1, 2} (2 P)$ decays at BaBar

The BABAR Collaboration

Results are presented on $χ_{b 1, 2} (2 P) \to ω Υ (1 S)$ transitions from $e^{+} e^{-} \to Υ (3 S) \to γ χ_{b 1, 2} (2 P)$ decays. The data were collected with the BaBar detector at the PEP-II asymm…

hep-ex2024★ 2 cited

A search for baryogenesis and dark matter in $B^{+} \to Λ_{c}^{+} + invisible$ decays

BABAR Collaboration

A mechanism of baryogenesis and dark matter production via $B$ -meson oscillations and decays has recently been proposed to explain the observed dark matter abundance and matter-ant…

hep-ex2023★ 15 cited

Measurement of additional radiation in the initial-state-radiation processes $e^{+} e^{-} \to μ^{+} μ^{-} γ$ and $e^{+} e^{-} \to π^{+} π^{-} γ$ at BABAR

BABAR Collaboration

A dedicated measurement of additional radiation in $e^{+} e^{-} \to μ^{+} μ^{-} γ$ and $e^{+} e^{-} \to π^{+} π^{-} γ$ initial-state-radiation events is presented using the full BABAR data sample. For the f…

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-ex2016★ 14 cited

Measurement of the neutral $D$ meson mixing parameters in a time-dependent amplitude analysis of the $D^{0} \to π^{+} π^{-} π^{0}$ decay

The BABAR Collaboration

We measure the $D^{0} - D ˉ^{0}$ mixing parameters using a time-dependent amplitude analysis of the decay $D^{0} \to π^{+} π^{-} π^{0}$ . The data were recorded with the BABAR detector at cen…

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-ex2015★ 10 cited

Measurement of the branching fractions of the radiative leptonic tau decays tau -> e gamma nu anti-nu and tau -> mu gamma nu anti-nu at BaBar

The BaBar Collaboration

We perform a measurement of the tau -> l gamma nu anti-nu (l = e, mu) branching fractions for a minimum photon energy of 10 MeV in the tau rest frame, using 431fb^-1 of e^+e^- coll…

hep-ex2014★ 427 cited

The Physics of the B Factories

A. J. Bevan, B. Golob, Th. Mannel +2003

This work is on the Physics of the B Factories. Part A of this book contains a brief description of the SLAC and KEK B Factories as well as their detectors, BaBar and Belle, and da…

hep-ex2013★ 24 cited

Measurement of CP-violating asymmetries in B^0 -> (rho pi)^0 decays using a time-dependent Dalitz plot analysis

BABAR Collaboration

We present results for a time-dependent Dalitz plot measurement of CP-violating asymmetries in the mode B^0 -> pi^+ pi^- pi^0. The dataset is derived from the complete sample of 47…

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-ex2012★ 40 cited

Study of high-multiplicity 3-prong and 5-prong tau decays at BABAR

J. P. Lees

We present measurements of the branching fractions of 3-prong and 5-prong tau decay modes using a sample of 430 million tau lepton pairs, corresponding to an integrated luminosity…

hep-ex2012★ 8 cited

Measurement of the Time-Dependent CP Asymmetry of Partially Reconstructed B0->D+D- Decays

The BABAR Collaboration

We present a new measurement of the time-dependent CP asymmetry of B0->D*+D*- decays using (471+-5) million BBbar pairs collected with the BaBar detector at the PEP-II B Factory at…

hep-ex2012★ 117 cited

Evidence of B-->tau nu decays with hadronic B tags

BABAR Collaboration

We present a search for the decay B+ -->tau+ nu using 467.8 x 10^6 B B pairs collected at the Y(4S) resonance with the BaBar detector at the SLAC PEP-II B-Factory. We select a samp…

hep-ex2012★ 46 cited

Measurement of B(B-->X_s γ), the B-->X_s γ photon energy spectrum, and the direct CP asymmetry in B-->X_{s+d} γ decays

The BABAR Collaboration

The photon spectrum in B --> X_s γ decay, where X_s is any strange hadronic state, is studied using a data sample of (382.8\pm 4.2) \times 10^6 e^+ e^- --> Υ(4S) --> BBbar events c…

hep-ex2012★ 96 cited

Study of X(3915) --> J/ψω in two-photon collisions

The BABAR Collaboration

We study the process $γ γ \to J / ψ ω$ using a data sample of 519.2 $f b^{- 1}$ recorded by the BaBar detector at SLAC at the PEP-II asymmetric-energy $e^{+} e^{-}$ collider at center-of-mass…

hep-ex2012★ 22 cited

Improved Limits on $B^{0}$ decays to invisible $(+ γ)$ final states

The BABAR Collaboration

We establish improved upper limits on branching fractions for B0 decays to final States 10 where the decay products are purely invisible (i.e., no observable final state particles)…

hep-ex2012★ 238 cited

Precise Measurement of the e+ e- --> pi+ pi- (gamma) Cross Section with the Initial-State Radiation Method at BABAR

J. P. Lees et al.

A precise measurement of the cross section of the process $e^{+} e^{-} \to π^{+} π^{-} (γ)$ from threshold to an energy of 3GeV is obtained with the initial-state radiation (ISR) method using 2…

hep-ex2012★ 23 cited

Branching fraction measurement of B -> omega l nu decays

The BABAR Collaboration

We present a measurement of the B -> omega l nu branching fraction based on a sample of 467 million BB pairs recorded by the BaBar detector at the SLAC PEP-2 e+e- collider. We obse…

hep-ex2012★ 35 cited

Search for lepton-number violating processes in B+ -> h- l+ l+ decays

The BABAR Collaboration

We have searched for the lepton-number violating processes B+ -> h- l+ l+ with h- = K-/pi- and l+ = e+/mu+, using a sample of 471+/-3 million BBbar events collected with the BaBar…

hep-ex2012★ 87 cited

A Search for Dark Higgs Bosons

The BABAR Collaboration

Recent astrophysical and terrestrial experiments have motivated the proposal of a dark sector with GeV-scale gauge boson force carriers and new Higgs bosons. We present a search fo…

Study of χb1,2​(2P)→ωΥ(1S) transitions in Υ(3S)→γχb1,2​(2P) decays at BaBar

A search for baryogenesis and dark matter in B+→Λc+​+invisible decays

Measurement of additional radiation in the initial-state-radiation processes e+e−→μ+μ−γ and e+e−→π+π−γ at BABAR

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 neutral D meson mixing parameters in a time-dependent amplitude analysis of the D0→π+π−π0 decay

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

Measurement of the branching fractions of the radiative leptonic tau decays tau -> e gamma nu anti-nu and tau -> mu gamma nu anti-nu at BaBar

The Physics of the B Factories

Measurement of CP-violating asymmetries in B^0 -> (rho pi)^0 decays using a time-dependent Dalitz plot analysis

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

Study of high-multiplicity 3-prong and 5-prong tau decays at BABAR

Measurement of the Time-Dependent CP Asymmetry of Partially Reconstructed B0->D*+D*- Decays

Evidence of B-->tau nu decays with hadronic B tags

Measurement of B(B-->X_s γ), the B-->X_s γ photon energy spectrum, and the direct CP asymmetry in B-->X_{s+d} γ decays

Study of X(3915) --> J/ψω in two-photon collisions

Improved Limits on B0 decays to invisible (+γ) final states

Precise Measurement of the e+ e- --> pi+ pi- (gamma) Cross Section with the Initial-State Radiation Method at BABAR

Branching fraction measurement of B -> omega l nu decays

Search for lepton-number violating processes in B+ -> h- l+ l+ decays

A Search for Dark Higgs Bosons

Study of $χ_{b 1, 2} (2 P) \to ω Υ (1 S)$ transitions in $Υ (3 S) \to γ χ_{b 1, 2} (2 P)$ decays at BaBar

A search for baryogenesis and dark matter in $B^{+} \to Λ_{c}^{+} + invisible$ decays

Measurement of additional radiation in the initial-state-radiation processes $e^{+} e^{-} \to μ^{+} μ^{-} γ$ and $e^{+} e^{-} \to π^{+} π^{-} γ$ at BABAR

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

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

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

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

Measurement of the neutral $D$ meson mixing parameters in a time-dependent amplitude analysis of the $D^{0} \to π^{+} π^{-} π^{0}$ decay

Measurement of the Time-Dependent CP Asymmetry of Partially Reconstructed B0->D+D- Decays

Improved Limits on $B^{0}$ decays to invisible $(+ γ)$ final states