A. Oyanguren

activity

20012023

J / ψ p

resonances consistent with pentaquark states in

Λ_{b}^{0} \to J / ψ K^{-} p

decays

1.3k citations · 21.9k across the 318 of their papers we have counts for

collaborators

323 papers

hep-ex2023★ 11 cited

Search for $B$ Mesogenesis at BABAR

BABAR Collaboration, J. P. Lees, V. Poireau +239

A new mechanism has been proposed to simultaneously explain the presence of dark matter and the matter-antimatter asymmetry in the universe. This scenario predicts exotic $B$ meson…

hep-ex2022★ 2 cited

Search for Heavy Neutral Leptons Using Tau Lepton Decays at BABAR

BABAR Collaboration

This article presents a model independent search for an additional, mostly sterile, Heavy Neutral Lepton (HNL), that is capable of mixing with the Standard Model $τ$ neutrino with…

hep-ex2021

Search for an Axion-Like Particle in B Meson Decays

The BABAR Collaboration

Axion-like particles (ALPs) are predicted in many extensions of the Standard Model, and their masses can naturally be well below the electroweak scale. In the presence of couplings…

hep-ex2021★ 9 cited

Review of opportunities for new long-lived particle triggers in Run 3 of the Large Hadron Collider

Juliette Alimena, James Beacham, Freya Blekman +75

Long-lived particles (LLPs) are highly motivated signals of physics Beyond the Standard Model (BSM) with great discovery potential and unique experimental challenges. The LLP searc…

hep-ex2021

Study of the reactions $e^{+} e^{-} \to π^{+} π^{-} π^{0} π^{0} π^{0} π^{0}$ and $π^{+} π^{-} π^{0} π^{0} π^{0} η$ at center-of-mass energies from threshold to 4.5 GeV using initial-state radiation

BaBar Collaboration

We study the processes $e^{+} e^{-} \to π^{+} π^{-} π^{0} π^{0} π^{0} π^{0} γ$ and $e^{+} e^{-} \to π^{+} π^{-} π^{0} π^{0} π^{0} η γ$ in which an energetic photon is radiated from the initial state. The data were collected with…

hep-ex2021★ 1 cited

Search for Lepton Flavor Violation in $Υ (3 S) \to e^{\pm} μ^{\mp}$

BABAR Collaboration

We report on the first search for electron-muon lepton flavor violation (LFV) in the decay of a $b$ ~quark and $b$ ~antiquark bound state. We look for the LFV decay $Υ(3S)\rightarrow…

hep-ex2021★ 4 cited

Search for Darkonium in $e^{+} e^{-}$ Collisions

The BABAR Collaboration

Collider searches for dark sectors, new particles interacting only feebly with ordinary matter, have largely focused on identifying signatures of new mediators, leaving much of dar…

hep-ex2021★ 40 cited

Light meson spectroscopy from Dalitz plot analyses of $η_{c}$ decays to $η^{'} K^{+} K^{-}$ , $η^{'} π^{+} π^{-}$ , and $η π^{+} π^{-}$ produced in two-photon interactions

J. P. Lees

We study the processes $γ γ \to η_{c} \to η^{'} K^{+} K^{-}$ , $η^{'} π^{+} π^{-}$ , and $η π^{+} π^{-}$ using a data sample of 519 $f b^{- 1}$ recorded with the BaBar detector operating at the SLAC PEP-II a…

physics.ins-det2021★ 20 cited

A Comparison of CPU and GPU implementations for the LHCb Experiment Run 3 Trigger

R. Aaij, M. Adinolfi, S. Aiola +157

The LHCb experiment at CERN is undergoing an upgrade in preparation for the Run 3 data taking period of the LHC. As part of this upgrade the trigger is moving to a fully software i…

hep-ex2021★ 5 cited

Study of the reactions $e^{+} e^{-} \to 2 (π^{+} π^{-}) π^{0} π^{0} π^{0}$ and $e^{+} e^{-} \to 2 (π^{+} π^{-}) π^{0} π^{0} η$ at center-of-mass energies from threshold to 4.5 GeV using initial-state radiation

The BABAR Collaboration

We study the processes $e^{+} e^{-} \to 2 (π^{+} π^{-}) π^{0} π^{0} π^{0} γ$ and $2 (π^{+} π^{-}) π^{0} π^{0} η γ$ in which an energetic photon is radiated from the initial state. The data were collected with the \ba…

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-ex2020★ 10 cited

Search for lepton-flavor violating decays $D^{0} \to X^{0} e^{\pm} μ^{\mp}$

BaBar Collaboration, J. P. Lees, V. Poireau +238

We present a search for seven lepton-flavor-violating neutral charm decays of the type $D^{0} \to X^{0} e^{\pm} μ^{\mp}$ , where $X^{0}$ represents a $π^{0}$ , $K_{S}^{0}$ …

hep-ex2019★ 31 cited

Measurements of the Absolute Branching Fractions of $B^{\pm} \to K^{\pm} X_{c c ˉ}$

J. P. Lees, V. Poireau, V. Tisserand +232

A study of the two body decays $B^{\pm} \to X_{c c ˉ} K^{\pm}$ , where X $_{c c ˉ}$ refers to one charmonium state, is reported by BaBar collaboration using a data sample of 42…

hep-ex2019★ 4 cited

Tracking performance for long-lived particles at LHCb

Luis Miguel Garcia, Louis Henry, Brij Jashal +1

The LHCb experiment is dedicated to the study of the $c -$ and $b -$ hadron decays, including long-lived particles such as $K_{s}$ and strange baryons ( $Λ^{0}$ , $Ξ^{-}$ , etc... ). These kin…

hep-ex2019★ 64 cited

Search for the doubly charmed baryon $Ξ_{cc}^{+}$

LHCb collaboration, R. Aaij, C. Abelán Beteta +905

A search for the doubly charmed baryon $Ξ_{cc}^{+}$ is performed through its decay to the $Λ_{c}^{+} K^{-} π^{+}$ final state, using proton-proton collision data collected with the LHCb de…

hep-ex2019★ 6 cited

Search for $B^{-} \to Λ p ˉ ν ν ˉ$ with the BABAR experiment

The BABAR Collaboration, J. P. Lees, V. Poireau +235

We search for the rare flavor-changing neutral current process $B^{-} \to Λ p ν ν$ using data from the BABAR experiment. A total of 424 fb $^{- 1}$ of $e^{+} e^{-}$ col…

hep-ex2019★ 7 cited

Search for rare or forbidden decays of the $D^{0}$ meson

J. P. Lees, V. Poireau, V. Tisserand +234

We present a search for nine lepton-number-violating and three lepton-flavor-violating neutral charm decays of the type $D^{0} \to h^{' -} h^{-} ℓ^{' +} ℓ^{+}$ …

hep-ex2019★ 50 cited

Extraction of form Factors from a Four-Dimensional Angular Analysis of $B \to D^{*} ℓ^{-} ν_{ℓ}$

B. Dey

An angular analysis of the decay $B \to D^{*} ℓ^{-} ν_{ℓ}$ , $ℓ \in {e, μ}$ , is reported using the full $e^{+} e^{-}$ collision data set collected by t…

hep-ph2019★ 10 cited

Radiative $b$ -baryon decays to measure the photon and $b$ -baryon polarization

Luis Miguel García Martín, Brij Jashal, Fernando Martínez Vidal +4

The radiative decays of $b$ -baryons facilitate the direct measurement of photon helicity in $b \to s γ$ transitions thus serving as an important test of physics beyond the Standard M…

hep-ex2018★ 34 cited

Study of the reactions $e^{+} e^{-} \to π^{+} π^{-} π^{0} π^{0} π^{0} γ$ and $π^{+} π^{-} π^{0} π^{0} η γ$ at center-of-mass energies from threshold to 4.35 GeV using initial-state radiation

J. P. Lees

We study the processes $e^{+} e^{-} \to π^{+} π^{-} π^{0} π^{0} π^{0} γ$ and $π^{+} π^{-} π^{0} π^{0} η γ$ in which an energetic photon is radiated from the initial state. The data were collected with the BaBar~ det…

hep-ex2018★ 20 cited

Search for a Stable Six-Quark State at BABAR

Bertrand Echenard

Recent investigations have suggested that the six-quark combination uuddss could be a deeply bound state (S) that has eluded detection so far, and a potential dark matter candidate…

hep-ex2018★ 14 cited

Observation of the decay $D^{0} \to K^{-} π^{+} e^{+} e^{-}$

BaBar Collaboration, J. P. Lees, others

We report the observation of the rare charm decay $D^{0} \to K^{-} π^{+} e^{+} e^{-}$ , based on $468$ fb $^{- 1}$ of $e^{+} e^{-}$ annihilation data collected at or close to the center-of-mass…

hep-ex2018★ 21 cited

Measurement of the CKM angle $γ$ using $B^{\pm} \to D K^{\pm}$ with $D \to K_{S}^{0} π^{+} π^{-}$ , $K_{S}^{0} K^{+} K^{-}$ decays

LHCb collaboration, R. Aaij, B. Adeva +819

A binned Dalitz plot analysis of $B^{\pm} \to D K^{\pm}$ decays, with $D \to K_{S}^{0} π^{+} π^{-}$ and $D \to K_{S}^{0} K^{+} K^{-}$ , is used to perform a measurement of the CP-violating obse…

hep-ex2018★ 32 cited

Measurement of $cos 2 β$ in $B^{0} \to D^{(*)} h^{0}$ with $D \to K_{S}^{0} π^{+} π^{-}$ decays by a combined time-dependent Dalitz plot analysis of BaBar and Belle data

The BaBar, Belle Collaborations, : +407

We report measurements of $sin 2 β$ and $cos 2 β$ from a time-dependent Dalitz plot analysis of $B^{0} \to D^{(*)} h^{0}$ with $D \to K_{S}^{0} π^{+} π^{-}$ decays, where the lig…

Search for B Mesogenesis at BABAR

Search for Heavy Neutral Leptons Using Tau Lepton Decays at BABAR

Search for an Axion-Like Particle in B Meson Decays

Review of opportunities for new long-lived particle triggers in Run 3 of the Large Hadron Collider

Study of the reactions e+e−→π+π−π0π0π0π0 and π+π−π0π0π0η at center-of-mass energies from threshold to 4.5 GeV using initial-state radiation

Search for Lepton Flavor Violation in Υ(3S)→e±μ∓

Search for Darkonium in e+e− Collisions

Light meson spectroscopy from Dalitz plot analyses of ηc​ decays to η′K+K−, η′π+π−, and ηπ+π− produced in two-photon interactions

A Comparison of CPU and GPU implementations for the LHCb Experiment Run 3 Trigger

Study of the reactions e+e−→2(π+π−)π0π0π0 and e+e−→2(π+π−)π0π0η at center-of-mass energies from threshold to 4.5 GeV using initial-state radiation

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

Search for lepton-flavor violating decays D0→X0e±μ∓

Measurements of the Absolute Branching Fractions of B±→K±Xccˉ​

Tracking performance for long-lived particles at LHCb

Search for the doubly charmed baryon Ξcc+​

Search for B−→Λpˉ​ννˉ with the BABAR experiment

Search for rare or forbidden decays of the D0 meson

Extraction of form Factors from a Four-Dimensional Angular Analysis of B→D∗ℓ−νℓ​

Radiative b-baryon decays to measure the photon and b-baryon polarization

Study of the reactions e+e−→π+π−π0π0π0γ and π+π−π0π0ηγ at center-of-mass energies from threshold to 4.35 GeV using initial-state radiation

Search for a Stable Six-Quark State at BABAR

Observation of the decay D0→K−π+e+e−

Measurement of the CKM angle γ using B±→DK± with D→KS0​π+π−, KS0​K+K− decays

Measurement of cos2β in B0→D(∗)h0 with D→KS0​π+π− decays by a combined time-dependent Dalitz plot analysis of BaBar and Belle data

Search for $B$ Mesogenesis at BABAR

Study of the reactions $e^{+} e^{-} \to π^{+} π^{-} π^{0} π^{0} π^{0} π^{0}$ and $π^{+} π^{-} π^{0} π^{0} π^{0} η$ at center-of-mass energies from threshold to 4.5 GeV using initial-state radiation

Search for Lepton Flavor Violation in $Υ (3 S) \to e^{\pm} μ^{\mp}$

Search for Darkonium in $e^{+} e^{-}$ Collisions

Light meson spectroscopy from Dalitz plot analyses of $η_{c}$ decays to $η^{'} K^{+} K^{-}$ , $η^{'} π^{+} π^{-}$ , and $η π^{+} π^{-}$ produced in two-photon interactions

Study of the reactions $e^{+} e^{-} \to 2 (π^{+} π^{-}) π^{0} π^{0} π^{0}$ and $e^{+} e^{-} \to 2 (π^{+} π^{-}) π^{0} π^{0} η$ at center-of-mass energies from threshold to 4.5 GeV using initial-state radiation

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

Search for lepton-flavor violating decays $D^{0} \to X^{0} e^{\pm} μ^{\mp}$

Measurements of the Absolute Branching Fractions of $B^{\pm} \to K^{\pm} X_{c c ˉ}$

Search for the doubly charmed baryon $Ξ_{cc}^{+}$

Search for $B^{-} \to Λ p ˉ ν ν ˉ$ with the BABAR experiment

Search for rare or forbidden decays of the $D^{0}$ meson

Extraction of form Factors from a Four-Dimensional Angular Analysis of $B \to D^{*} ℓ^{-} ν_{ℓ}$

Radiative $b$ -baryon decays to measure the photon and $b$ -baryon polarization

Study of the reactions $e^{+} e^{-} \to π^{+} π^{-} π^{0} π^{0} π^{0} γ$ and $π^{+} π^{-} π^{0} π^{0} η γ$ at center-of-mass energies from threshold to 4.35 GeV using initial-state radiation

Observation of the decay $D^{0} \to K^{-} π^{+} e^{+} e^{-}$

Measurement of the CKM angle $γ$ using $B^{\pm} \to D K^{\pm}$ with $D \to K_{S}^{0} π^{+} π^{-}$ , $K_{S}^{0} K^{+} K^{-}$ decays

Measurement of $cos 2 β$ in $B^{0} \to D^{(*)} h^{0}$ with $D \to K_{S}^{0} π^{+} π^{-}$ decays by a combined time-dependent Dalitz plot analysis of BaBar and Belle data