A. Ustyuzhanin

activity

20142026

most citedTest of lepton universality using

B^{+} \to K^{+} ℓ^{+} ℓ^{-}

decays

952 citations · 3.4k across the 79 of their papers we have counts for

collaborators

Showing hep-exShow all

41 papers · 1 filter

hep-ex2024★ 1 cited

Observation of collider neutrinos without final state muons with the SND@LHC experiment

LHC Collaboration

We report the observation of neutrino interactions without final state muons at the LHC, with a significance of 6.4 $σ$ . A data set of proton-proton collisions at $s = 13.6$ …

hep-ex2023★ 2 cited

Measurement of the muon flux at the SND@LHC experiment

LHC Collaboration

The Scattering and Neutrino Detector at the LHC (\SND) started taking data at the beginning of Run 3 of the LHC. The experiment is designed to perform measurements with neutrinos p…

hep-ex2023★ 66 cited

Observation of collider muon neutrinos with the SND@LHC experiment

LHC Collaboration

We report the direct observation of muon neutrino interactions with the SND@LHC detector at the Large Hadron Collider. A data set of proton-proton collisions at $s = 13.6$ …

hep-ex2020★ 42 cited

Sensitivity of the SHiP experiment to dark photons decaying to a pair of charged particles

SHiP Collaboration, C. Ahdida, A. Akmete +331

Dark photons are hypothetical massive vector particles that could mix with ordinary photons. The simplest theoretical model is fully characterised by only two parameters: the mass…

hep-ex2020★ 53 cited

Study of the $ψ_{2} (3823)$ and $χ_{c 1} (3872)$ states in $B^{+} \to (J ψ π^{+} π^{-}) K^{+}$ decays

LHCb collaboration, R. Aaij, C. Abellán Beteta +956

The decays $B^{+} \to J / ψ π^{+} π^{-} K^{+}$ are studied using a data set corresponding to an integrated luminosity of 9fb $^{- 1}$ collected with the LHCb detector in proton-proton co…

hep-ex2019★ 65 cited

The Tracking Machine Learning challenge : Accuracy phase

Sabrina Amrouche, Laurent Basara, Paolo Calafiura +24

This paper reports the results of an experiment in high energy physics: using the power of the "crowd" to solve difficult experimental problems linked to tracking accurately the tr…

hep-ex2019★ 29 cited

Cherenkov Detectors Fast Simulation Using Neural Networks

Denis Derkach, Nikita Kazeev, Fedor Ratnikov +2

We propose a way to simulate Cherenkov detector response using a generative adversarial neural network to bypass low-level details. This network is trained to reproduce high level…

hep-ex2018

Latest results of the OPERA experiment on nu-tau appearance in the CNGS neutrino beam

N. Agafonova, A. Alexandrov, A. Anokhina +132

OPERA is a long-baseline experiment designed to search for $ν_{μ} \to ν_{τ}$ oscillations in appearance mode. It was based at the INFN Gran Sasso laboratory (LNGS) and took data from 200…

hep-ex2017★ 4 cited

Observation of the $B^{+} \to D^{*-} K^{+} π^{+}$ decay

LHCb collaboration, R. Aaij, B. Adeva +771

The $B^{+} \to D^{*-} K^{+} π^{+}$ decay potentially provides an excellent way to investigate charm meson spectroscopy. The decay is searched for in a sample of proton-proton collision dat…

hep-ex2017★ 14 cited

Observation of the decay $B_{s}^{0} \to η_{c} ϕ$ and evidence for $B_{s}^{0} \to η_{c} π^{+} π^{-}$

LHCb collaboration, R. Aaij, B. Adeva +762

A study of $B_{s}^{0} \to η_{c} ϕ$ and $B_{s}^{0} \to η_{c} π^{+} π^{-}$ decays is performed using $pp$ collision data corresponding to an integrated luminosity of 3.0$\,\rm fb^{-1}…

hep-ex2017★ 19 cited

Measurement of the $B^{\pm}$ production asymmetry and the $C P$ asymmetry in $B^{\pm} \to J / ψ K^{\pm}$ decays

LHCb collaboration, R. Aaij, B. Adeva +764

The $B^{\pm}$ meson production asymmetry in $pp$ collisions is measured using $B^{+} \to D ˉ^{0} π^{+}$ decays. The data were recorded by the LHCb experiment during Run 1 of the LHC…

hep-ex2017★ 26 cited

Observation of the suppressed decay $Λ_{b}^{0} \to p π^{-} μ^{+} μ^{-}$

LHCb collaboration, R. Aaij, B. Adeva +768

The suppressed decay $Λ_{b}^{0} \to p π^{-} μ^{+} μ^{-}$ , excluding the $J / ψ$ and $ψ (2 S) \to μ^{+} μ^{-}$ resonances, is observed for the first time with a significance o…

hep-ex2017★ 12 cited

Measurement of $C P$ asymmetries in $D^{\pm} \to η^{'} π^{\pm}$ and $D_{s}^{\pm} \to η^{'} π^{\pm}$ decays

LHCb collaboration, R. Aaij, B. Adeva +770

A search for $C P$ violation in $D^{\pm} \to η^{'} π^{\pm}$ and $D_{s}^{\pm} \to η^{'} π^{\pm}$ decays is performed using proton-proton collision data, corre…

hep-ex2017★ 29 cited

Observation of $B_{c}^{+} \to D^{0} K^{+}$ decays

LHCb collaboration, R. Aaij, B. Adeva +763

Using proton-proton collision data corresponding to an integrated luminosity of 3.0 fb $^{- 1}$ , recorded by the LHCb detector at centre-of-mass energies of 7 and 8 TeV, the $B_{c}^{…

hep-ex2016★ 5 cited

Search for the $B_{s}^{0} \to η^{'} ϕ$ decay

LHCb collaboration, R. Aaij, B. Adeva +763

A search for the charmless $B_{s}^{0} \to η^{'} ϕ$ decay is performed using $pp$ collision data collected by the LHCb experiment at centre-of-mass energies of $7$ and $8$ TeV,…

hep-ex2016★ 21 cited

Observation of $B_{c}^{+} \to J / ψ D^{()} K^{()}$ decays

LHCb collaboration, R. Aaij, B. Adeva +764

A search for the decays $B_{c}^{+} \to J / ψ D^{(*) 0} K^{+}$ and $B_{c}^{+} \to J / ψ D^{(*) +} K^{* 0}$ is performed with data collected at the LHCb experiment corresponding to an integrated lumino…

hep-ex2016★ 12 cited

Evidence for the two-body charmless baryonic decay $B^{+} \to p Λ ˉ$

LHCb collaboration, R. Aaij, B. Adeva +767

A search for the rare two-body charmless baryonic decay $B^{+} \to p Λ ˉ$ is performed with $pp$ collision data, corresponding to an integrated luminosity of $3\,\mbox{fb}^{-1}$, c…

hep-ex2016★ 19 cited

Measurement of forward $t t$ , $W + b b$ and $W + c c$ production in $pp$ collisions at $s = 8$ TeV

LHCb collaboration, R. Aaij, B. Adeva +767

The production of $t t$ , $W + b b$ and $W + c c$ is studied in the forward region of proton-proton collisions collected at a centre-of-mass energy of 8 Te…

hep-ex2016★ 20 cited

New algorithms for identifying the flavour of $B^{0}$ mesons using pions and protons

LHCb collaboration, R. Aaij, B. Adeva +767

Two new algorithms for use in the analysis of $pp$ collision are developed to identify the flavour of $B^{0}$ mesons at production using pions and protons from the hadronization proc…

hep-ex2016★ 31 cited

Observation of the decay $B_{s}^{0} \to ϕ π^{+} π^{-}$ and evidence for $B^{0} \to ϕ π^{+} π^{-}$

LHCb collaboration, R. Aaij, B. Adeva +764

The first observation of the rare decay $B_{s}^{0} \to ϕ π^{+} π^{-}$ and evidence for $B^{0} \to ϕ π^{+} π^{-}$ are reported, using $pp$ collision data recorded by the LHCb detector at centre-of-mas…

hep-ex2016★ 11 cited

Search for the $C P$ -violating strong decays $η \to π^{+} π^{-}$ and $η^{'} (958) \to π^{+} π^{-}$

LHCb collaboration, R. Aaij, B. Adeva +769

A search for the $C P$ -violating strong decays $η \to π^{+} π^{-}$ and $η^{'} (958) \to π^{+} π^{-}$ has been performed using approximately $2.5 \times 1 0^{7}$ events of each of the decays…

hep-ex2016★ 5 cited

Observation of $B^{+} \to J / ψ 3 π^{+} 2 π^{-}$ and $B^{+} \to ψ (2 S) π^{+} π^{+} π^{-}$ decays

LHCb collaboration, R. Aaij, B. Adeva +767

The decays $B^{+} \to J / ψ 3 π^{+} 2 π^{-}$ and $B^{+} \to ψ (2 S) π^{+} π^{+} π^{-}$ are observed for the first time using a data sample corresponding to an integrated luminosity of $3.0f…

hep-ex2016★ 44 cited

First study of the CP-violating phase and decay-width difference in $B_{s}^{0} \to ψ (2 S) ϕ$ decays

LHCb collaboration, R. Aaij, B. Adeva +765

A time-dependent angular analysis of $B_{s}^{0} \to ψ (2 S) ϕ$ decays is performed using data recorded by the LHCb experiment. The data set corresponds to an integrated luminosity of 3.0\in…

hep-ex2016★ 112 cited

Amplitude analysis of $B^{-} \to D^{+} π^{-} π^{-}$ decays

LHCb collaboration, R. Aaij, B. Adeva +763

The Dalitz plot analysis technique is used to study the resonant substructures of $B^{-} \to D^{+} π^{-} π^{-}$ decays in a data sample corresponding to 3.0 $fb^{- 1}$ of $pp$ …

Observation of collider neutrinos without final state muons with the SND@LHC experiment

Measurement of the muon flux at the SND@LHC experiment

Observation of collider muon neutrinos with the SND@LHC experiment

Sensitivity of the SHiP experiment to dark photons decaying to a pair of charged particles

Study of the ψ2​(3823) and χc1​(3872) states in B+→(Jψπ+π−)K+ decays

The Tracking Machine Learning challenge : Accuracy phase

Cherenkov Detectors Fast Simulation Using Neural Networks

Latest results of the OPERA experiment on nu-tau appearance in the CNGS neutrino beam

Observation of the B+→D∗−K+π+ decay

Observation of the decay Bs0​→ηc​ϕ and evidence for Bs0​→ηc​π+π−

Measurement of the B± production asymmetry and the CP asymmetry in B±→J/ψK± decays

Observation of the suppressed decay Λb0​→pπ−μ+μ−

Measurement of CP asymmetries in D±→η′π± and Ds±​→η′π± decays

Observation of Bc+​→D0K+ decays

Search for the Bs0​→η′ϕ decay

Observation of Bc+​→J/ψD(∗)K(∗) decays

Evidence for the two-body charmless baryonic decay B+→pΛˉ

Measurement of forward tt, W+bb and W+cc production in pp collisions at s​=8 TeV

New algorithms for identifying the flavour of B0 mesons using pions and protons

Observation of the decay Bs0​→ϕπ+π− and evidence for B0→ϕπ+π−

Search for the CP-violating strong decays η→π+π− and η′(958)→π+π−

Observation of B+→J/ψ3π+2π− and B+→ψ(2S)π+π+π− decays

First study of the CP-violating phase and decay-width difference in Bs0​→ψ(2S)ϕ decays

Amplitude analysis of B−→D+π−π− decays

Study of the $ψ_{2} (3823)$ and $χ_{c 1} (3872)$ states in $B^{+} \to (J ψ π^{+} π^{-}) K^{+}$ decays

Observation of the $B^{+} \to D^{*-} K^{+} π^{+}$ decay

Observation of the decay $B_{s}^{0} \to η_{c} ϕ$ and evidence for $B_{s}^{0} \to η_{c} π^{+} π^{-}$

Measurement of the $B^{\pm}$ production asymmetry and the $C P$ asymmetry in $B^{\pm} \to J / ψ K^{\pm}$ decays

Observation of the suppressed decay $Λ_{b}^{0} \to p π^{-} μ^{+} μ^{-}$

Measurement of $C P$ asymmetries in $D^{\pm} \to η^{'} π^{\pm}$ and $D_{s}^{\pm} \to η^{'} π^{\pm}$ decays

Observation of $B_{c}^{+} \to D^{0} K^{+}$ decays

Search for the $B_{s}^{0} \to η^{'} ϕ$ decay

Observation of $B_{c}^{+} \to J / ψ D^{()} K^{()}$ decays

Evidence for the two-body charmless baryonic decay $B^{+} \to p Λ ˉ$

Measurement of forward $t t$ , $W + b b$ and $W + c c$ production in $pp$ collisions at $s = 8$ TeV

New algorithms for identifying the flavour of $B^{0}$ mesons using pions and protons

Observation of the decay $B_{s}^{0} \to ϕ π^{+} π^{-}$ and evidence for $B^{0} \to ϕ π^{+} π^{-}$

Search for the $C P$ -violating strong decays $η \to π^{+} π^{-}$ and $η^{'} (958) \to π^{+} π^{-}$

Observation of $B^{+} \to J / ψ 3 π^{+} 2 π^{-}$ and $B^{+} \to ψ (2 S) π^{+} π^{+} π^{-}$ decays

First study of the CP-violating phase and decay-width difference in $B_{s}^{0} \to ψ (2 S) ϕ$ decays

Amplitude analysis of $B^{-} \to D^{+} π^{-} π^{-}$ decays