A5086920101- High-Energy Particle Collisions Research
- Particle physics theoretical and experimental studies
- Quantum Chromodynamics and Particle Interactions
- Particle Detector Development and Performance
- Nuclear reactor physics and engineering
- Dark Matter and Cosmic Phenomena
- Nuclear physics research studies
- Statistical Methods and Bayesian Inference
- CCD and CMOS Imaging Sensors
- Cosmology and Gravitation Theories
- Stochastic processes and statistical mechanics
- Radiation Detection and Scintillator Technologies
- Muon and positron interactions and applications
- Particle Accelerators and Free-Electron Lasers
- Black Holes and Theoretical Physics
- Atomic and Molecular Physics
- Pulsars and Gravitational Waves Research
- Computational Physics and Python Applications
- Theoretical and Computational Physics
- Pediatric Urology and Nephrology Studies
- Superconducting Materials and Applications
Istituto Nazionale di Fisica Nucleare, Sezione di Cagliari
2022-2025
Istituto Nazionale di Fisica Nucleare, Sezione di Torino
2025
Istituto Nazionale di Fisica Nucleare, Sezione di Bologna
2023-2024
A. Alikhanyan National Laboratory
2022-2024
University of Cagliari
2023-2024
Abstract The ALICE experiment was proposed in 1993, to study strongly-interacting matter at extreme energy densities and temperatures. This proposal entailed a comprehensive investigation of nuclear collisions the LHC. Its physics programme initially focused on determination properties quark–gluon plasma (QGP), deconfined state quarks gluons, created such collisions. has been extended cover broader ensemble observables related Quantum Chromodynamics (QCD), theory strong interactions. studied...
Abstract A Large Ion Collider Experiment (ALICE) has been conceived and constructed as a heavy-ion experiment at the LHC. During LHC Runs 1 2, it produced wide range of physics results using all collision systems available In order to best exploit new opportunities opening up with upgraded detector technologies, undergone major upgrade during Long Shutdown 2 (2019–2022). This comprises move continuous readout, complete overhaul core detectors, well online event processing farm redesigned...
We study the polarization of inclusive J/ψ produced in Pb-Pb collisions at sqrt[s_{NN}]=5.02 TeV LHC dimuon channel, via measurement angular distribution its decay products. perform rapidity region 2.5<y<4, for three transverse momentum intervals (2<p_{T}<4, 4<p_{T}<6, 6<p_{T}<10 GeV/c) and as a function centrality collision 2<p_{T}<6 GeV/c. For first time, is measured with respect to event plane collision, by considering angle between positive-charge muon rest frame axis perpendicular...
The interaction of $\rm{K}^{-}$ with protons is characterised by the presence several coupled channels, systems like ${\rm \overline{K}^0}$n and $\pi\Sigma$ a similar mass same quantum numbers as $\rm{K}^{-}$p state. strengths these couplings to system are crucial importance for understanding nature $\Lambda(1405)$ resonance attractive strong interaction. In this article, we present measurements correlation functions in relative momentum space obtained pp collisions at $\sqrt{s}~=~13$ TeV,...
The production of the <a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:mi>ψ</a:mi><a:mo stretchy="false">(</a:mo><a:mn>2</a:mn><a:mi>S</a:mi><a:mo stretchy="false">)</a:mo></a:math> charmonium state was measured with ALICE in Pb-Pb collisions at <e:math xmlns:e="http://www.w3.org/1998/Math/MathML" display="inline"><e:msqrt><e:msub><e:mi>s</e:mi><e:mrow><e:mi>NN</e:mi></e:mrow></e:msub></e:msqrt><e:mo>=</e:mo><e:mn>5.02</e:mn><e:mtext> </e:mtext><e:mtext>...
The first measurements of skewness and kurtosis mean transverse momentum (〈pT〉) fluctuations are reported in Pb–Pb collisions at sNN = 5.02 TeV, Xe–Xe 5.44 TeV pp s=5.02 using the ALICE detector. carried out as a function system size 〈dNch/dη〉|η|<0.51/3, charged particles with (pT) pseudorapidity (η), range 0.2<pT<3.0 GeV/c |η|<0.8, respectively. In collisions, positive is observed 〈pT〉 for all centralities, which significantly larger than what would be expected scenario independent particle...
The measurements of the inclusive J/ψ yield at midrapidity (|y|<0.9) and forward rapidity (2.5 <y< 4) in Pb–Pb collisions sNN=5.02 TeV with ALICE detector LHC are reported. production yields nuclear modification factors, RAA, measured as a function collision centrality, transverse momentum (pT), rapidity. average squared (〈pT〉 〈pT2〉) evaluated centrality midrapidity. Compared to previous publications, here entire dataset collected during Run 2 is used, which improves precision extends pT...
This paper reports the first measurement of transverse momentum (<a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:msub><a:mi>p</a:mi><a:mi mathvariant="normal">T</a:mi></a:msub></a:math>) spectra primary charged pions, kaons, (anti)protons, and unidentified particles as a function charged-particle flattenicity in pp collisions at <d:math xmlns:d="http://www.w3.org/1998/Math/MathML"...
This article presents the first measurement of interaction between charm hadrons and nucleons. The two-particle momentum correlations $\mathrm{pD^-}$ $\mathrm{\overline{p}D}^+$ pairs are measured by ALICE Collaboration in high-multiplicity pp collisions at $\sqrt{s} = 13~\mathrm{TeV}$. data compatible with Coulomb-only hypothesis within (1.1-1.5)$\sigma$. level agreement slightly improves if an attractive nucleon(N)$\overline{\mathrm{D}}$ strong is considered, contrast to most model...
A bstract The cross section for coherent photonuclear production of J/ ψ is presented as a function the electromagnetic dissociation (EMD) Pb. measurement performed with ALICE detector in ultra-peripheral Pb-Pb collisions at centre-of-mass energy per nucleon pair $$ \sqrt{{\textrm{s}}_{\textrm{NN}}} <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msqrt><mml:msub><mml:mi>s</mml:mi><mml:mi>NN</mml:mi></mml:msub></mml:msqrt></mml:math> = 5.02 TeV. Cross sections are five different...
The most precise measurements to date of the _{Λ}^{3}H lifetime τ and Λ separation energy B_{Λ} are obtained using data sample Pb-Pb collisions at sqrt[s_{NN}]=5.02 TeV collected by ALICE LHC. is reconstructed via its charged two-body mesonic decay channel (_{Λ}^{3}H→^{3}He+π^{-} charge-conjugate process). measured values τ=[253±11(stat)±6(syst)] ps B_{Λ}=[102±63(stat)±67(syst)] keV compatible with predictions from effective field theories confirm that structure consistent a weakly bound system.
The production of prompt ${\mathrm{\ensuremath{\Lambda}}}_{c}^{+}$ baryons has been measured at midrapidity in the transverse momentum interval $0<{p}_{T}<1 \text{GeV}/c$ for first time, $pp$ and $p$--Pb collisions a center-of-mass energy per nucleon-nucleon collision $\sqrt{{s}_{NN}}=5.02\phantom{\rule{0.16em}{0ex}}\text{TeV}$. measurement was performed decay channel ${\mathrm{\ensuremath{\Lambda}}}_{c}^{+}\ensuremath{\rightarrow}p{K}_{S}^{0}$ by applying new reconstruction techniques using...
The measurement of the production deuterons, tritons and $^{3}\mathrm{He}$ their antiparticles in Pb-Pb collisions at $\sqrt{{s}_{NN}}=5.02\phantom{\rule{4pt}{0ex}}\mathrm{TeV}$ is presented this article. measurements are carried out midrapidity $(|y|< 0.5)$ as a function collision centrality using ALICE detector. ${p}_{\mathrm{T}}$-integrated yields, coalescence parameters ratios to protons antiprotons reported compared with nucleosynthesis models. comparison these results different systems...
The two-particle momentum correlation functions between charm mesons (<a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:msup><a:mi mathvariant="normal">D</a:mi><a:mrow><a:mo>*</a:mo><a:mo>±</a:mo></a:mrow></a:msup></a:math> and <d:math xmlns:d="http://www.w3.org/1998/Math/MathML" display="inline"><d:mrow><d:msup><d:mrow><d:mi mathvariant="normal">D</d:mi></d:mrow><d:mrow><d:mo>±</d:mo></d:mrow></d:msup></d:mrow></d:math>) charged light-flavor (<g:math...
Deuterons are atomic nuclei composed of a neutron and proton held together by the strong interaction. Unbound ensembles deuteron third nucleon have been investigated in past using scattering experiments, they constitute fundamental reference nuclear physics to constrain interactions properties nuclei. In this work, <a:math xmlns:a="http://www.w3.org/1998/Math/MathML"...
Abstract Luminosity determination within the ALICE experiment is based on measurement, in van der Meer scans, of cross sections for visible processes involving one or more detectors (visible sections). In 2015 and 2018, Large Hadron Collider provided Pb–Pb collisions at a centre-of-mass energy per nucleon pair √ s NN = 5.02 TeV. Two sections, associated with particle detection Zero Degree Calorimeter (ZDC) V0 detector, were measured scan. This article describes experimental set-up analysis...
A bstract The first measurements of elliptic flow π ± , K $$ \textrm{p}+\overline{\textrm{p}} <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mi>p</mml:mi> <mml:mo>+</mml:mo> <mml:mover> <mml:mo>¯</mml:mo> </mml:mover> </mml:math> {\textrm{K}}_{\textrm{S}}^0 <mml:msubsup> <mml:mi>K</mml:mi> <mml:mi>S</mml:mi> <mml:mn>0</mml:mn> </mml:msubsup> \Lambda +\overline{\Lambda} <mml:mi>Λ</mml:mi> ϕ {\Xi}^{-}+{\overline{\Xi}}^{+} <mml:msup> <mml:mi>Ξ</mml:mi> <mml:mo>−</mml:mo>...
Abstract Three-body nuclear forces play an important role in the structure of nuclei and hypernuclei are also incorporated models to describe dynamics dense baryonic matter, such as neutron stars. So far, only indirect measurements anchored binding energies can be used constrain three-nucleon force, if hyperons considered, scarce data on impose weak constraints three-body forces. In this work, we present first direct measurement p–p–p p–p– $$\Lambda $$ <mml:math...
The inclusive production of the charm–strange baryon Ωc0 is measured for first time via its hadronic decay into Ω−π+ at midrapidity (|y|<0.5) in proton–proton (pp) collisions centre-of-mass energy s=13 TeV with ALICE detector LHC. transverse momentum (pT) differential cross section multiplied by branching ratio presented interval 2<pT<12GeV/c. pT dependence Ωc0-baryon relative to prompt D0-meson and Ξc0-baryon compared various models that take different hadronisation mechanisms...
This Letter presents the first measurement of event-by-event fluctuations net number (difference between particle and antiparticle multiplicities) multistrange hadrons Ξ^{-} Ξ[over ¯]^{+} its correlation with net-kaon using data collected by ALICE Collaboration in pp, p-Pb, Pb-Pb collisions at a center-of-mass energy per nucleon pair sqrt[s_{NN}]=5.02 TeV. The statistical hadronization model over three units rapidity having same opposite strangeness content successfully describes results. On...
First measurements of hadron-<a:math xmlns:a="http://www.w3.org/1998/Math/MathML"><a:mi mathvariant="normal">Λ</a:mi></a:math> (<c:math xmlns:c="http://www.w3.org/1998/Math/MathML"><c:mrow><c:mi>h</c:mi><c:mtext>−</c:mtext><c:mi mathvariant="normal">Λ</c:mi></c:mrow></c:math>) azimuthal angular correlations in <e:math xmlns:e="http://www.w3.org/1998/Math/MathML"><e:mi>p</e:mi></e:math>-Pb collisions at <f:math...