I. Nasteva

activity

20072024

J / ψ p

resonances consistent with pentaquark states in

Λ_{b}^{0} \to J / ψ K^{-} p

decays

1.3k citations · 19.7k across the 231 of their papers we have counts for

collaborators

237 papers

hep-ex2024

Update of the Brazilian Participation in the Next-Generation Collider Experiments

W. L. Aldá Júnior, G. A. Alves, K. M. Amarilo +24

This proposal outlines the future plans of the Brazilian High-Energy Physics (HEP) community for upcoming collider experiments. With the construction of new particle colliders on t…

hep-ex2024★ 1 cited

Search for reactor-produced millicharged particles with Skipper-CCDs at the CONNIE and Atucha-II experiments

Alexis A. Aguilar-Arevalo, Nicolas Avalos, Pablo Bellino +37

Millicharged particles, proposed by various extensions of the standard model, can be created in pairs by high-energy photons within nuclear reactors and can interact electromagneti…

physics.ins-det2024

The LHCb VELO Upgrade Module Construction

K. Akiba, M. Alexander, C. Bertella +84

The LHCb detector has undergone a major upgrade for LHC Run 3. This Upgrade I detector facilitates operation at higher luminosity and utilises full-detector information at the LHC…

hep-ex2024★ 3 cited

Searches for CEνNS and Physics beyond the Standard Model using Skipper-CCDs at CONNIE

Alexis A. Aguilar-Arevalo, Nicolas Avalos, Xavier Bertou +31

The Coherent Neutrino-Nucleus Interaction Experiment (CONNIE) aims to detect the coherent scattering (CE $ν$ NS) of reactor antineutrinos off silicon nuclei using thick fully-deplete…

physics.ins-det2021★ 9 cited

Low-energy reactor neutrino physics with the CONNIE experiment

Irina Nasteva

The Coherent Neutrino-Nucleus Interaction Experiment (CONNIE) uses fully depleted high-resistivity CCDs (charge coupled devices) with the aim of detecting the coherent elastic scat…

hep-ex2021★ 48 cited

Search for coherent elastic neutrino-nucleus scattering at a nuclear reactor with CONNIE 2019 data

CONNIE collaboration, Alexis Aguilar-Arevalo, Javier Bernal +33

The Coherent Neutrino-Nucleus Interaction Experiment (CONNIE) is taking data at the Angra 2 nuclear reactor with the aim of detecting the coherent elastic scattering of reactor ant…

physics.med-ph2020★ 1 cited

The HEV Ventilator

J. Buytaert, A. Abed Abud, P. Allport +70

HEV is a low-cost, versatile, high-quality ventilator, which has been designed in response to the COVID-19 pandemic. The ventilator is intended to be used both in and out of hospit…

physics.ins-det2020★ 4 cited

The Upgrade I of LHCb VELO -- towards an intelligent monitoring platform

P. Kopciewicz, T. Szumlak, M. Majewski +63

The Large Hadron Collider beauty (LHCb) detector is designed to detect decays of b- and c- hadrons for the study of CP violation and rare decays. At the end of the LHC Run 2, many…

physics.med-ph2020★ 28 cited

The HEV Ventilator Proposal

J. Buytaert, A. Abed Abud, K. Akiba +28

We propose the design of a ventilator which can be easily manufactured and integrated into the hospital environment to support COVID-19 patients. The unit is designed to support st…

hep-ex2020

Brazilian Participation in the Next-Generation Collider Experiments

W. L. Aldá Júnior, C. A. Bernardes, D. De Jesus Damião +13

This proposal concerns the participation of the Brazilian High-Energy Physics community in the next-generation collider experiments. As the LHC at CERN is getting ready for its thi…

hep-ex2019★ 66 cited

Search for light mediators in the low-energy data of the CONNIE reactor neutrino experiment

Alexis Aguilar-Arevalo, Xavier Bertou, Carla Bonifazi +23

The CONNIE experiment is located at a distance of 30 m from the core of a commercial nuclear reactor, and has collected a 3.7 kg-day exposure using a CCD detector array sensitive t…

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…

physics.ins-det2019★ 106 cited

Exploring low-energy neutrino physics with the Coherent Neutrino Nucleus Interaction Experiment (CONNIE)

Alexis Aguilar-Arevalo, Xavier Bertou, Carla Bonifazi +30

The Coherent Neutrino-Nucleus Interaction Experiment (CONNIE) uses low-noise fully depleted charge-coupled devices (CCDs) with the goal of measuring low-energy recoils from coheren…

hep-ex2019★ 6 cited

Measurement of the ratio of branching fractions of the decays $Λ_{b}^{0} \to ψ (2 S) Λ$ and $Λ_{b}^{0} \to J / ψ Λ$

LHCb Collaboration, R. Aaij, B. Adeva +799

Using $pp$ collisions corresponding to 3 $fb^{- 1}$ integrated luminosity, recorded by the LHCb experiment at centre-of-mass energies of 7 and 8 $TeV$ , the ratio of…

hep-ex2018

Physics case for an LHCb Upgrade II - Opportunities in flavour physics, and beyond, in the HL-LHC era

LHCb collaboration, I. Bediaga, M. Cruz Torres +828

The LHCb Upgrade II will fully exploit the flavour-physics opportunities of the HL-LHC, and study additional physics topics that take advantage of the forward acceptance of the LHC…

hep-ex2018★ 15 cited

Observation of $B_{s}^{0} \to D^{* 0} ϕ$ and search for $B^{0} \to D^{0} ϕ$ decays

LHCb collaboration, R. Aaij, B. Adeva +807

The first observation of the $B_{s}^{0} \to D^{* 0} ϕ$ decay is reported, with a significance of more than seven standard deviations, from an analysis of $pp$ collision data…

hep-ex2018★ 16 cited

Observation of the decay $B_{s}^{0} \to D^{0} K^{+} K^{-}$

LHCb collaboration, R. Aaij, B. Adeva +808

The first observation of the $B_{s}^{0} \to D^{0} K^{+} K^{-}$ decay is reported, together with the most precise branching fraction measurement of the mode $B^0 \to \overline{D}^0…

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★ 119 cited

Observation of a new $Ξ_{b}^{-}$ resonance

R. Aaij, B. Adeva, M. Adinolfi +806

From samples of $pp$ collision data collected by the LHCb experiment at $s = 7$ , $8$ and $13$ TeV corresponding to integrated luminosities of 1.0, 2.0 and 1.5 fb $^{- 1}$ , respe…

hep-ex2018★ 29 cited

Search for CP violation using triple product asymmetries in $Λ_{b}^{0} \to p K^{-} π^{+} π^{-}$ , $Λ_{b}^{0} \to p K^{-} K^{+} K^{-}$ and $Ξ_{b}^{0} \to p K^{-} K^{-} π^{+}$ decays

LHCb collaboration, R. Aaij, B. Adeva +791

A search for $C$ P and $P$ violation using triple-product asymmetries is performed with $Λ_{b}^{0} \to p K^{-} π^{+} π^{-}$ , $Λ_{b}^{0} \to p K^{-} K^{+} K^{-}$ and $Ξ^{0}_{b}\to pK^{-}K^{-…

hep-ex2018★ 55 cited

Measurement of $Υ$ production in $pp$ collisions at $s$ = 13 TeV

LHCb collaboration, R. Aaij, B. Adeva +782

The production cross-sections of $Υ (1 S)$ , $Υ (2 S)$ and $Υ (3 S)$ mesons in proton-proton collisions at $s$ = 13 TeV are measured with a data sample corresponding to an integrate…

hep-ex2018★ 14 cited

A search for weakly decaying b-flavored pentaquarks

LHCb collaboration, R. Aaij, B. Adeva +790

Investigations of the existence of pentaquark states containing a single $b$ (anti)quark decaying weakly into four specific final states J/ $ψ K^{+} π^{-} p$ , J/ $ψ K^{-} π^{-} p$ , J/$ψK^- π^+…

hep-ex2017★ 19 cited

Amplitude analysis of the decay $B^{0} \to K_{S}^{0} π^{+} π^{-}$ and first observation of the CP asymmetry in $B^{0} \to K^{*} (892)^{-} π^{+}$

LHCb collaboration, R. Aaij, B. Adeva +794

The time-integrated Dalitz plot of the three-body hadronic charmless decay $B^{0} \to K_{S}^{0} π^{+} π^{-}$ is studied using a $pp$ collision data…

hep-ex2017★ 15 cited

Search for $B_{c}^{+}$ decays to two charm mesons

LHCb collaboration, R. Aaij, B. Adeva +791

A search for decays of $B_{c}^{+}$ mesons to two charm mesons is performed for the first time using data corresponding to an integrated luminosity of 3.0 fb $^{- 1}$ , collected by the LH…