S. Spataro
YOU?
Author Swipe
View article: End-to-End Multi-track Reconstruction Using Graph Neural Networks at Belle II
End-to-End Multi-track Reconstruction Using Graph Neural Networks at Belle II Open
We present the study of an end-to-end multi-track reconstruction algorithm for the central drift chamber of the Belle II experiment at the SuperKEKB collider using Graph Neural Networks for an unknown number of particles. The algorithm use…
View article: End-to-End Multi-Track Reconstruction using Graph Neural Networks at Belle II
End-to-End Multi-Track Reconstruction using Graph Neural Networks at Belle II Open
We present the study of an end-to-end multi-track reconstruction algorithm for the central drift chamber of the Belle II experiment at the SuperKEKB collider using Graph Neural Networks for an unknown number of particles. The algorithm use…
View article: PARSIFAL: A toolkit for triple-GEM parametrized simulation
PARSIFAL: A toolkit for triple-GEM parametrized simulation Open
PARSIFAL (PARametrized SImulation) is a fast and reliable software tool that reproduces the complete response of a triple-GEM detector to the passage of a charged particle, taking into account the main physical effects. Starting from the d…
View article: TMDs for Spin-1 Hadrons
TMDs for Spin-1 Hadrons Open
Transverse-momentum-dependent parton distribution functions (TMDs) were investigated at the twists 3 and 4 for spin-1 hadrons in addition to the twist-2 ones. They were found by studying all the possible decomposition of a quark correlatio…
View article: Proton, deuteron and triton flow measurements in Au+Au collisions at\n $\\sqrt{s_{NN}} = 2.4$ GeV
Proton, deuteron and triton flow measurements in Au+Au collisions at\n $\\sqrt{s_{NN}} = 2.4$ GeV Open
High precision measurements of flow coefficients $v_{n}$ ($n = 1 - 4$) for\nprotons, deuterons and tritons relative to the first-order spectator plane have\nbeen performed in Au+Au collisions at $\\sqrt{s_{NN}} = 2.4$ GeV with the\nHigh-Ac…
View article: XYZ states: An experimental point-of-view
XYZ states: An experimental point-of-view Open
Since 2003, a new family of states without a clear theoretical interpretation has been measured in the heavy quarkonium spectrum, the so-called X Y Z states. While the nature of these states is so far unclear, the experimental search is on…
View article: New results on light nuclei, hyperons and hypernuclei from HADES (HADES collaboration)
New results on light nuclei, hyperons and hypernuclei from HADES (HADES collaboration) Open
In March 2019 the HADES experiment recorded 14 billion Ag+Ag collisions at √ s NN = 2.55 GeV as a part of the FAIR phase-0 physics program. In this contribution, we present and investigate our capabilities to reconstruct and analyze weakly…
View article: Measurements of Beam Backgrounds in SuperKEKB Phase 2
Measurements of Beam Backgrounds in SuperKEKB Phase 2 Open
The high design luminosity of the SuperKEKB electron-positron collider will result in challenging levels of beam-induced backgro\ unds in the interaction region. Understanding and mitigating these backgrounds is critical to the success of …
View article: A Fit to the Available e+e− → Λc+Λ¯c− Cross Section Data Nearby Production Threshold by Means of a Strong Correction to the Coulomb Enhancement Factor
A Fit to the Available e+e− → Λc+Λ¯c− Cross Section Data Nearby Production Threshold by Means of a Strong Correction to the Coulomb Enhancement Factor Open
There are two available sets of data on the e+e−→Λc+Λ¯c− cross section at energies close to the production threshold, collected by the Belle and by the BESIII Collaborations. The measurement of the former, performed by means of the initial…
View article: Standalone codes for simulation and reconstruction of a triple-GEM: GTS and GRAAL
Standalone codes for simulation and reconstruction of a triple-GEM: GTS and GRAAL Open
The experiment BESIII, running at the accelerator BEPCII in Beijing (P.R.C.), is going to be updated with the replacement of the Inner Drift Chamber with a Cylindrical triple-GEM Inner Tracker (CGEM-IT). In the R&D stage, two standalone C+…
View article: A possible simultaneous fit to the available $e^+e^- \rightarrow \Lambda^+_c \bar{\Lambda}^-_c$ cross section data nearby $\psi(4660)$ by means of a strong correction to the Coulomb enhancement factor
A possible simultaneous fit to the available $e^+e^- \rightarrow \Lambda^+_c \bar{\Lambda}^-_c$ cross section data nearby $\psi(4660)$ by means of a strong correction to the Coulomb enhancement factor Open
There are two available set of data on the $e^+e^- \rightarrow \Lambda^+_c \bar{\Lambda}_c^-$ cross section above threshold. The BELLE measurement, with ISR return, is compatible with the presence of a resonant state, called $\psi(4660)$ (…
View article: A possible simultaneous fit to the available $e^+e^- \rightarrow Λ^+_c \barΛ^-_c$ cross section data nearby $ψ(4660)$ by means of a strong correction to the Coulomb enhancement factor
A possible simultaneous fit to the available $e^+e^- \rightarrow Λ^+_c \barΛ^-_c$ cross section data nearby $ψ(4660)$ by means of a strong correction to the Coulomb enhancement factor Open
There are two available set of data on the $e^+e^- \rightarrow Λ^+_c \barΛ_c^-$ cross section above threshold. The BELLE measurement, with ISR return, is compatible with the presence of a resonant state, called $ψ(4660)$ (formerly known as…
View article: PARSIFAL: a toolkit for triple-GEM parametrized simulation
PARSIFAL: a toolkit for triple-GEM parametrized simulation Open
PARSIFAL (PARametrized SImulation by Farinelli And Lavezzi) is a fast and reliable software tool that reproduces the complete response of a triple-GEM detector to the passage of a charged particle, taking into account the main physical eff…
View article: Test beam results of a Cylindrical GEM detector for BESIII experiment
Test beam results of a Cylindrical GEM detector for BESIII experiment Open
Gas detector are very light instrument used in high energy physics to measure the particle properties: position and momentum. Through high electric field is possible to use the Gas Electron Multiplier (GEM) technology to detect the charged…
View article: Strong Absorption of Hadrons with Hidden and Open Strangeness in Nuclear Matter
Strong Absorption of Hadrons with Hidden and Open Strangeness in Nuclear Matter Open
We present the first observation of K^{-} and ϕ absorption within nuclear matter by means of π^{-}-induced reactions on C and W targets at an incident beam momentum of 1.7 GeV/c studied with HADES at SIS18/GSI. The double ratio (K^{-}/K^{+…
View article: Poly (1-butene-ran-ethylene) Monomodal Copolymers from Metallocene Catalysts: Structural and Morphological Differences with Increasing Ethylene Content
Poly (1-butene-ran-ethylene) Monomodal Copolymers from Metallocene Catalysts: Structural and Morphological Differences with Increasing Ethylene Content Open
Samples of random poly(butene-ran-ethylene) copolymers produced with metallocene catalysts were studied in order to elucidate the different behaviors of this particular class of materials as a function of increasing ethylene (C2) content. …
View article: Implementation of GENFIT2 as an experiment independent track-fitting framework
Implementation of GENFIT2 as an experiment independent track-fitting framework Open
The GENFIT toolkit, initially developed at the Technische Universitaet Muenchen, has been extended and modified to be more general and user-friendly. The new GENFIT, called GENFIT2, provides track representation, track-fitting algorithms a…
View article: A model to explain the angular distribution of $ {{{J /\psi}}} $ and $ {{\psi(2S)}} $ decay into $ {\Lambda \overline{\Lambda}} $ and ${\Sigma^0 \overline{\Sigma^0}} $
A model to explain the angular distribution of $ {{{J /\psi}}} $ and $ {{\psi(2S)}} $ decay into $ {\Lambda \overline{\Lambda}} $ and ${\Sigma^0 \overline{\Sigma^0}} $ Open
BESIII data show a particular angular distribution for the decay of the\n$J/\\psi$ and $\\psi(2S)$ mesons into the hyperons $\\Lambda\\overline{\\Lambda}$\nand $\\Sigma^0\\overline{\\Sigma}^0$. More in details the angular distribution of\n…
View article: Track Fitting for the Belle II Experiment
Track Fitting for the Belle II Experiment Open
The Belle II experiment has started to take data in 2018, studying e + e - collisions at the KEK facility in Tsukuba (Japan), in a center of mass energy range of the Bottomonium states. The tracking system includes a combination of hit mea…
View article: "Table 1 - Multiplicities and effective Temperatures" of "Sub-threshold production of K$^{0}_{s}$ mesons and ${\Lambda}$ hyperons in Au(1.23A GeV)$+$Au"
"Table 1 - Multiplicities and effective Temperatures" of "Sub-threshold production of K$^{0}_{s}$ mesons and ${\Lambda}$ hyperons in Au(1.23A GeV)$+$Au" Open
$K^{0}_{S}$ and $\Lambda$ multiplicities in full phase space and inverse slopes at mid-rapidity $T_{Eff}$ for a given centrality.
View article: A Cylindrical GEM Inner Tracker for the BESIII experiment at IHEP
A Cylindrical GEM Inner Tracker for the BESIII experiment at IHEP Open
The Beijing Electron Spectrometer III (BESIII) is a multipurpose detector that collects data provided by the collision in the Beijing Electron Positron Collider II (BEPCII), hosted at the Institute of High Energy Physics of Beijing. Since …
View article: Innovative design and construction technique for the Cylindrical GEM detector for the BESIII experiment
Innovative design and construction technique for the Cylindrical GEM detector for the BESIII experiment Open
Gas detector are very light instrument used in high energy physics to measure the particle properties: position and momentum. Through high electric field is possible to use the Gas Electron Multiplier (GEM) technology to detect the particl…
View article: Test beam results with prototypes for the new Cylindrical GEM Inner Tracker of the BESIII experiment
Test beam results with prototypes for the new Cylindrical GEM Inner Tracker of the BESIII experiment Open
A cylindrical GEM tracker is under construction in order to replace and improve the inner tracking system of the BESIII experiment. Tests with planar chamber prototypes were carried out on the H4 beam line of SPS (CERN) with muons of 150 G…
View article: arXiv : Test beam results of a Cylindrical GEM detector for the BESIII experiment
arXiv : Test beam results of a Cylindrical GEM detector for the BESIII experiment Open
Gas detector are very light instrument used in high energy physics to measure the particle properties: position and momentum. Through high electric field is possible to use the Gas Electron Multiplier (GEM) technology to detect the charged…
View article: Performance of the micro-TPC Reconstruction for GEM Detectors at High Rate
Performance of the micro-TPC Reconstruction for GEM Detectors at High Rate Open
Gas detectors are one of the pillars of the research in fundamental physics. Since many years, a new concept of detectors, the Micro Pattern Gas Detectors, allows to overcome many of the problems of other types of commonly used detectors, …