P. Urquijo

activity

20042026

most citedObservation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC

10.9k citations · 38.5k across the 464 of their papers we have counts for

collaborators

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450 papers · 1 filter

hep-ex2026

Searches for charged-lepton-flavor violation in $χ_{b J} (1 P)$ decays

Belle, Belle II Collaborations, : +415

We report the first searches for charged-lepton-flavor violation in decays of $χ_{b J} (1 P)$ ( $J = 0, 1,$ and $2$ ) to a pair of charged leptons using 158 million $Υ (2 S)$ decays collect…

hep-ex2025

Measurement of the $C P$ asymmetry in $D^{0} \to π^{+} π^{-} π^{0}$ decays at Belle II

Belle II Collaboration, M. Abumusabh, I. Adachi +400

We measure the time- and phase-space-integrated $C P$ asymmetry $A_{C P}$ in $D^{0} \to π^{+} π^{-} π^{0}$ decays reconstructed in $e^{+} e^{-} \to c c ˉ$ events collected by the Belle II experiment…

hep-ex2025

Measurement of time-dependent $C P$ asymmetries in $B^{0} \to K_{S}^{0} π^{+} π^{-} γ$ decays at Belle and Belle II

Belle, Belle II Collaborations, : +350

We present a measurement of the time-dependent $C P$ asymmetry in $B^{0} \to K_{S}^{0} π^{+} π^{-} γ$ decays using a data set of 365 fb $^{- 1}$ recorded by the Belle II experiment…

hep-ex2025

Model-agnostic likelihood for the reinterpretation of the $B^{+} \to K^{+} ν ν ˉ$ measurement at Belle II

Belle II Collaboration, M. Abumusabh, I. Adachi +374

We recently measured the branching fraction of the $B^{+} \to K^{+} ν ν ˉ$ decay using 362fb $^{- 1}$ of on-resonance $e^{+} e^{-}$ collision data under the assumption of Standard…

hep-ex2025

Determination of $∣ V_{c b} ∣$ using $B \to D ℓ ν_{ℓ}$ Decays at Belle II

Belle II Collaboration, I. Adachi, K. Adamczyk +407

We present a determination of the Cabibbo-Kobayashi-Maskawa matrix element $∣ V_{c b} ∣$ from the decay $B \to D ℓ ν_{ℓ}$ using a $365 fb^{- 1}$ $e^{+} e^{-} \to Υ (4 S) \to B B ˉ$ d…

hep-ex2025★ 1 cited

Measurements of $W^{+} W^{-}$ production cross-sections in $pp$ collisions at $s = 13$ TeV with the ATLAS detector

ATLAS Collaboration

Measurements of $W^{+} W^{-} \to e^{\pm} ν μ^{\mp} ν$ production cross-sections are presented, providing a test of the predictions of perturbative quantum chromodynamics and the elect…

hep-ex2024★ 5 cited

Observations of the singly Cabibbo-suppressed decays $Ξ_{c}^{+} \to p K_{S}^{0}$ , $Ξ_{c}^{+} \to Λ π^{+}$ , and $Ξ_{c}^{+} \to Σ^{0} π^{+}$ at Belle and Belle II

Belle, Belle II Collaborations, : +345

Using data samples of 983.0~ $f b^{- 1}$ and 427.9~ $f b^{- 1}$ accumulated with the Belle and Belle~II detectors operating at the KEKB and SuperKEKB asymmetric-energy $e^{+} e^{-}$ c…

hep-ex2024★ 2 cited

Observation of the decay $B^{0} \to J / ψ ω$ at Belle II

Belle II Collaboration, I. Adachi, L. Aggarwal +383

We measure the branching fraction of the decay $B^{0} \to J / ψ ω$ using data collected with the Belle II detector at the SuperKEKB collider. The data contain $(387 \pm 6) \times 1 0^{6}$ …

hep-ex2024★ 1 cited

Search for a new scalar decaying into new spin-1 bosons in four-lepton final states with the ATLAS detector

ATLAS Collaboration

A search is conducted for a new scalar boson $S$ , with a mass distinct from that of the Higgs boson, decaying into four leptons ( $ℓ =$ $e$ , $μ$ ) via an intermediate state contai…

hep-ex2024★ 2 cited

Measurement of $C P$ asymmetries in $B^{0} \to K_{S}^{0} π^{0} γ$ decays at Belle II

Belle II Collaboration, I. Adachi, L. Aggarwal +436

We report measurements of time-dependent $C P$ asymmetries in $B^{0} \to K_{S}^{0} π^{0} γ$ decays based on a data sample of $(388 \pm 6) \times 1 0^{6}$ $B B ˉ$ events collected at the $Υ (4 S)$ …

hep-ex2024★ 12 cited

Search for diphoton resonances in the 66 to 110 GeV mass range using $pp$ collisions at $s = 13$ TeV with the ATLAS detector

ATLAS Collaboration

A search is performed for light, spin-0 bosons decaying into two photons in the 66 to 110 GeV mass range, using 140 fb $^{- 1}$ of proton-proton collisions at $s = 13$ TeV produ…

hep-ex2024★ 24 cited

Measurement of the integrated luminosity of data samples collected during 2019-2022 by the Belle II experiment

The Belle II Collaboration, I. Adachi, L. Aggarwal +404

A series of data samples was collected with the Belle~II detector at the SuperKEKB collider from March 2019 to June 2022. We determine the integrated luminosities of these data sam…

hep-ex2024★ 2 cited

Measurement of differential cross-sections in $t t ˉ$ and $t t ˉ +$ jets production in the lepton+jets final state in $pp$ collisions at $s = 13$ TeV using 140 fb $^{- 1}$ of ATLAS data

ATLAS Collaboration

Differential cross-sections for top-quark pair production, inclusively and in association with jets, are measured in $pp$ collisions at a centre-of-mass energy of 13 TeV with the A…

hep-ex2024★ 8 cited

Measurements of jet cross-section ratios in 13 TeV proton--proton collisions with ATLAS

ATLAS Collaboration

Measurements of jet cross-section ratios between inclusive bins of jet multiplicity are performed in 140 fb $^{- 1}$ of proton--proton collisions with $s = 13$ TeV center-of-mas…

hep-ex2024★ 3 cited

Search for a resonance decaying into a scalar particle and a Higgs boson in the final state with two bottom quarks and two photons in proton-proton collisions at a center of mass energy of 13 TeV with the ATLAS detector

ATLAS Collaboration

A search for the resonant production of a heavy scalar $X$ decaying into a Higgs boson and a new lighter scalar $S$ , through the process $X \to S (\to bb) H (\to γ γ)$ , where the two…

hep-ex2024★ 14 cited

Search for the non-resonant production of Higgs boson pairs via gluon fusion and vector-boson fusion in the $b b ˉ τ^{+} τ^{-}$ final state in proton-proton collisions at $s = 13$ TeV with the ATLAS detector

ATLAS Collaboration

A search for the non-resonant production of Higgs boson pairs in the $H H \to b b ˉ τ^{+} τ^{-}$ channel is performed using 140 fb $^{- 1}$ of proton-proton collisions at a centre…

hep-ex2024★ 7 cited

Precise measurements of $W$ - and $Z$ -boson transverse momentum spectra with the ATLAS detector using $pp$ collisions at $s = 5.02$ TeV and $13$ TeV

ATLAS Collaboration

This paper describes measurements of the transverse momentum spectra of $W$ and $Z$ bosons produced in proton-proton collisions at centre-of-mass energies of $s = 5.02$ TeV an…

hep-ex2024★ 11 cited

Search for flavour-changing neutral-current couplings between the top quark and the Higgs boson in multi-lepton final states in 13 TeV $pp$ collisions with the ATLAS detector

ATLAS Collaboration

A search is presented for flavour-changing neutral-current interactions involving the top quark, the Higgs boson and an up-type quark ( $q = u, c$ ) with the ATLAS detector at the Large…

hep-ex2024★ 2 cited

Search for pair-produced higgsinos decaying via Higgs or $Z$ bosons to final states containing a pair of photons and a pair of $b$ -jets with the ATLAS detector

ATLAS Collaboration

A search is presented for the pair production of higgsinos $χ ~$ in gauge-mediated supersymmetry models, where the lightest neutralinos $χ ~_{1}^{0}$ decay into a light graviti…

hep-ex2024★ 5 cited

Measurements of inclusive and differential cross-sections of $t t ˉ γ$ production in $pp$ collisions at $s = 13$ TeV with the ATLAS detector

ATLAS Collaboration

Inclusive and differential cross-sections are measured at particle level for the associated production of a top quark pair and a photon ( $t t ˉ γ$ ). The analysis is performed usi…

hep-ex2024★ 5 cited

Search for low-mass resonances decaying into two jets and produced in association with a photon or a jet at $s = 13$ TeV with the ATLAS detector

ATLAS Collaboration

A search is performed for localized excesses in the low-mass dijet invariant mass distribution, targeting a hypothetical new particle decaying into two jets and produced in associa…

hep-ex2024★ 4 cited

Search for charged-lepton-flavour violating $μτ q t$ interactions in top-quark production and decay in $pp$ collisions at $s = 13$ TeV with the ATLAS detector at the LHC

ATLAS Collaboration

A search for charged-lepton-flavour violating $μτ q t$ ( $q = u, c$ ) interactions is presented, considering both top-quark production and decay. The data analysed correspond to 140 $\tex…

hep-ex2024★ 4 cited

Observation of electroweak production of $W^{+} W^{-}$ in association with jets in proton-proton collisions at $s = 13$ TeV with the ATLAS Detector

ATLAS Collaboration

A measurement of the production of $W$ bosons with opposite electric charges in association with two jets is presented based on 140 fb $^{- 1}$ of data collected by the ATLAS detecto…

hep-ex2024★ 7 cited

Fiducial and differential cross-section measurements of electroweak $W γ j j$ production in $pp$ collisions at $s = 13$ TeV with the ATLAS detector

ATLAS Collaboration

The observation of the electroweak production of a $W$ boson and a photon in association with two jets, using $pp$ collision data at the Large Hadron Collider at a centre of mass e…

Searches for charged-lepton-flavor violation in χbJ​(1P) decays

Measurement of the CP asymmetry in D0→π+π−π0 decays at Belle II

Measurement of time-dependent CP asymmetries in B0→KS0​π+π−γ decays at Belle and Belle II

Model-agnostic likelihood for the reinterpretation of the B+→K+ννˉ measurement at Belle II

Determination of ∣Vcb​∣ using B→Dℓνℓ​ Decays at Belle II

Measurements of W+W− production cross-sections in pp collisions at s​=13 TeV with the ATLAS detector

Observations of the singly Cabibbo-suppressed decays Ξc+​→pKS0​, Ξc+​→Λπ+, and Ξc+​→Σ0π+ at Belle and Belle II

Observation of the decay B0→J/ψω at Belle II

Search for a new scalar decaying into new spin-1 bosons in four-lepton final states with the ATLAS detector

Measurement of CP asymmetries in B0→KS0​π0γ decays at Belle II

Search for diphoton resonances in the 66 to 110 GeV mass range using pp collisions at s​=13 TeV with the ATLAS detector

Measurement of the integrated luminosity of data samples collected during 2019-2022 by the Belle II experiment

Measurement of differential cross-sections in ttˉ and ttˉ+jets production in the lepton+jets final state in pp collisions at s​=13 TeV using 140 fb−1 of ATLAS data

Measurements of jet cross-section ratios in 13 TeV proton--proton collisions with ATLAS

Search for a resonance decaying into a scalar particle and a Higgs boson in the final state with two bottom quarks and two photons in proton-proton collisions at a center of mass energy of 13 TeV with the ATLAS detector

Search for the non-resonant production of Higgs boson pairs via gluon fusion and vector-boson fusion in the bbˉτ+τ− final state in proton-proton collisions at s​=13 TeV with the ATLAS detector

Precise measurements of W- and Z-boson transverse momentum spectra with the ATLAS detector using pp collisions at s​=5.02 TeV and 13 TeV

Search for flavour-changing neutral-current couplings between the top quark and the Higgs boson in multi-lepton final states in 13 TeV pp collisions with the ATLAS detector

Search for pair-produced higgsinos decaying via Higgs or Z bosons to final states containing a pair of photons and a pair of b-jets with the ATLAS detector

Measurements of inclusive and differential cross-sections of ttˉγ production in pp collisions at s​=13 TeV with the ATLAS detector

Search for low-mass resonances decaying into two jets and produced in association with a photon or a jet at s​=13 TeV with the ATLAS detector

Search for charged-lepton-flavour violating μτqt interactions in top-quark production and decay in pp collisions at s​=13 TeV with the ATLAS detector at the LHC

Observation of electroweak production of W+W− in association with jets in proton-proton collisions at s​=13 TeV with the ATLAS Detector

Fiducial and differential cross-section measurements of electroweak Wγjj production in pp collisions at s​=13 TeV with the ATLAS detector

Searches for charged-lepton-flavor violation in $χ_{b J} (1 P)$ decays

Measurement of the $C P$ asymmetry in $D^{0} \to π^{+} π^{-} π^{0}$ decays at Belle II

Measurement of time-dependent $C P$ asymmetries in $B^{0} \to K_{S}^{0} π^{+} π^{-} γ$ decays at Belle and Belle II

Model-agnostic likelihood for the reinterpretation of the $B^{+} \to K^{+} ν ν ˉ$ measurement at Belle II

Determination of $∣ V_{c b} ∣$ using $B \to D ℓ ν_{ℓ}$ Decays at Belle II

Measurements of $W^{+} W^{-}$ production cross-sections in $pp$ collisions at $s = 13$ TeV with the ATLAS detector

Observations of the singly Cabibbo-suppressed decays $Ξ_{c}^{+} \to p K_{S}^{0}$ , $Ξ_{c}^{+} \to Λ π^{+}$ , and $Ξ_{c}^{+} \to Σ^{0} π^{+}$ at Belle and Belle II

Observation of the decay $B^{0} \to J / ψ ω$ at Belle II

Measurement of $C P$ asymmetries in $B^{0} \to K_{S}^{0} π^{0} γ$ decays at Belle II

Search for diphoton resonances in the 66 to 110 GeV mass range using $pp$ collisions at $s = 13$ TeV with the ATLAS detector

Measurement of differential cross-sections in $t t ˉ$ and $t t ˉ +$ jets production in the lepton+jets final state in $pp$ collisions at $s = 13$ TeV using 140 fb $^{- 1}$ of ATLAS data

Search for the non-resonant production of Higgs boson pairs via gluon fusion and vector-boson fusion in the $b b ˉ τ^{+} τ^{-}$ final state in proton-proton collisions at $s = 13$ TeV with the ATLAS detector

Precise measurements of $W$ - and $Z$ -boson transverse momentum spectra with the ATLAS detector using $pp$ collisions at $s = 5.02$ TeV and $13$ TeV

Search for flavour-changing neutral-current couplings between the top quark and the Higgs boson in multi-lepton final states in 13 TeV $pp$ collisions with the ATLAS detector

Search for pair-produced higgsinos decaying via Higgs or $Z$ bosons to final states containing a pair of photons and a pair of $b$ -jets with the ATLAS detector

Measurements of inclusive and differential cross-sections of $t t ˉ γ$ production in $pp$ collisions at $s = 13$ TeV with the ATLAS detector

Search for low-mass resonances decaying into two jets and produced in association with a photon or a jet at $s = 13$ TeV with the ATLAS detector

Search for charged-lepton-flavour violating $μτ q t$ interactions in top-quark production and decay in $pp$ collisions at $s = 13$ TeV with the ATLAS detector at the LHC

Observation of electroweak production of $W^{+} W^{-}$ in association with jets in proton-proton collisions at $s = 13$ TeV with the ATLAS Detector

Fiducial and differential cross-section measurements of electroweak $W γ j j$ production in $pp$ collisions at $s = 13$ TeV with the ATLAS detector