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Nuclear and Hadron Physics (The theory activities within INFN)

Nuclear and Hadron Physics (The theory activities within INFN). Maria Colonna Laboratori Nazionali del Sud (Catania ). M ain research lines. Total FTE: 75 ( Individuals ~100) . INFN Postdoc : 8 PhD Students : 11. Heavy Ion Collisions QGP phenomenology Neutron stars.

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Nuclear and Hadron Physics (The theory activities within INFN)

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  1. Nuclear and HadronPhysics (The theoryactivitieswithin INFN) Maria Colonna Laboratori Nazionali del Sud (Catania)

  2. Mainresearchlines Total FTE: 75 (Individuals ~100) INFN Postdoc : 8 PhDStudents: 11 • HeavyIonCollisions • QGP phenomenology • Neutronstars • HadronStructure • Hadronicmatter • Partoncorrelations NuclearMatter EoS and Phases QCD HadronPhysics 38% 23% NuclearStructure and Dynamics 39% • Few-bodysystems • Electro-weakprobes • Shellmodel • Algebraicmodels • Mean-field and beyond • Reactionswithexotic nuclei

  3. Few-bodysystems Shellmodel Mean-field and beyond Reactionswithexotic nuclei NuclearmatterEoSHeavyIonCollisions QGP phenomenology Neutronstars HadronStructure Hypernuclei Where ? • CollaborationswithmanyUniversities and ResearchInstitutes spread around • the world (France, Germany, Russia, Spain, … China, Japan, US…) • Strong link withexperimentalactivities (proposals, joint papers, PAC participation) • in Italy, Europe, US, Japan… • OrganizationofWorkshops , Schools and Training ofyoungscientists (ECT*, GGI)

  4. HadronPhysics Startingpoint: QCD The strong interactionsectorof SM ofelementaryparticles • Open key questions: • Confinement ? • Structureofhadrons ? • Whatis the roleofquarks and • self-interactinggluons in nuclei ? Source: D.Lacroix News on the Proton spin Transversitypartondistribution Semi-inclusive DIS e p  e’ π X e + p  e’ (π+ + π-) X • from HERMES • from COMPASS Anselminoet al., NPB 191,98(2009) Pavia and Torinogroups Q2 ~1-4 GeV2 Bacchetta et al. PRL 107, 012001 (2011) momentumfraction

  5. Fromquarkstonucleons and nuclei - New trends in NuclearForces:EffectiveFieldTheory: derive the nuclearforcefrom QCD or QCD-inspiredLagrangians Few-bodysystems: Ab-initiocalculationstostudybound or scatteringstates Trento, Padova, Pisa Hypersphericalharmonics LorentzIntegralTransform (LIT) Napoli Shellmodelcalculations: UseofmodernVlow-k Studiesofexotic nuclei, high spin chiralpotential Trentogroup 22C is the last bound isotope • Importantfinal state • interactions • Largeeffectof • three-bodyforce ! Coraggio et al, Phys.Rev. C81, 064303 (2010)

  6. Effectiveinteractions and nuclearEoS Slaterdeterminant Mean-field (MF), Effectiveinteractions • Self-consistent MF calculations (and extensions) are a powerfulframeworktounderstand the structureofmedium-heavy nuclei. Source: F.Gulminelli NuclearlevelsNuclearcollectivemotion (linearresponse) • Extrapolationto infinite nuclearmatter: Equationof State (EoS) Microscopicmethods are usedtoconstructeffectiveinteractions and nuclearEoS: BHF, CBF, FHNC , AFDMC (Catania, Lecce, LNS, Roma, Trento) • The concept or EoSiswidelyemployed in the astrophysicalcontext • (modelizationofneutronstars and supernova explosion) Propertiesof the crust, mass vs. radius, …

  7. Propertiesof single particle and collectivestates in (exotic) nuclei Milanogroup • Probing the nature ofparticle-corecoupling • (PVC model) in odd nuclei with gamma spectroscopy • and heavy-ion transfer reactions Particle-core coupling in 49Ca Isovectordipoleresponse Experimentperformed at LNL GDR D.Montanariet al, Phys.Lett. B697 (2011) 288 • New exoticcollectivemodes : a way to test • the density dependenceof the symmetryenergy PDR Neutron center of mass Proton center of mass E/A (ρ) = Es(ρ) + Esym(ρ) β² β=(N-Z)/A • - PygmyDipoleResonance (PDR): • The strengthisconnectedto the sizeof the neutron-skin • Low density behaviorofEsym • PREX experiment (Neutronradius) at Jlab Roca-Mazaet al, PRC85,024601(2012)

  8. Reactiondynamics: from nuclei tonewphasesofnuclearmatter • Matchingofstructure and reactiontheories • MatchingEoS and transporttheories PhenomenologyofHeavyIonCollisions at Intermediate Energies: a way toexplore the NuclearMatterphasediagram RoleofCoulomb and nuclearpotential in the excitationof PDR and GDR E.G.Lanzaet al, PRC 84, 064602 (2011) E (MeV) Catania - Padovacollaboration LNS group TDHF (and extensions) Semi-classicalapproximation: timeevolutionof the one-bodydistributionfunction in phasespace f(r,p,t): usingeffectiveinteractions • Reactionswithveryexotic nuclei, like transfer • and break-up • Two-particle transfer reactionsas a probe of • nuclearpairing Advanced quantum modelsbyPisa and Padovagroups DREB2012 Fragmentationevents (35 MeV/A) Fragment N/Z: Experiment-Theorycomparison Z E.De Filippo et al (Chimera coll), submitted

  9. z y x py px Ultra-relativistic HIC and QGP Phenomenology Quark-Gluon Plasma Hadronization Initial Conditions BULK (pT~T) Microscopic Mechanism Matters! CGC (x<<1) Gluon saturation HeavyQuarks (mq>>T,LQCD) MINIJETS (pT>>T,LQCD) • Hadronabundance: • Statisticalmodelsworks • foralliniitialconditions: • e+e-, pp, AA collisions • Firenze: • Hydrodynamicalmodels • Hadronizationand statisticalmodels Becattini, Castorina et al, Eur. Phys. J. C (2010) 66: 377–386 LNS: Partonictransporttheories: a way to link QCDeffectiveLagrangians and lQCDpredictionstoexp. observables An example: Elliptic flow and QGP viscosity • Torino: • Strangenesssuppression • New exoticnon-equilibriumphases • (Color Glass Condensate)

  10. A largevarietyofapproaches and methods, but in severalcases • a common goal can beidentified • ex. Exoticsystems and symmetryenergy • Contiguitybetweennuclear and hadronphysics • -ex. New nuclearforces, transitionstonewphasesofmatter • in HIC and in neutronstars (hyperons, deconfinedphase) • Strong collaborationbetweenexperimentalists and theorists • only in some sectors, howeversynergies are increasing and • encouragedby INFN theoretical and experimentalCommittees

  11. Otherfunding • MIUR-PRIN 2011-2013 1) Quark-Gluon-Plasma and high energycollisionsUniversitiesinvolved:Firenze (F.Becattini), Catania, Torino, TorinoPolitec. 2) Stucture and dynamicsof nuclei beyond the valleyofstabilityUniversitiesinvolved:Padova (A.Vitturi), Catania, Napoli, Pavia, Trento • MIUR-FIRB 2010-2014 • QCD phases, field-theorymodels and transporttheories: a systematicapproach • to the phenomenologyofheavyioncollisions at LHC • Catania Univ. (V.Greco) ---Torino Univ. (C.Ratti) • E.U.FP7 – I3HP2 • HadronPhysics 2-3 (2008-2012) • StudyofStronglyInteractingMatter • European Network + JRA • (several INFN sites) • ERC ---Starting Grant 2011-2016 • Dynamics of the Quark Gluon Plasma • Catania Univ. (V.Greco)

  12. New computingcenters • -2010 A single central cluster (Project CSN4cluster) in Pisa • -128 nodesfor serial and paralleljobs • -Accessible via GRID • -2011 “Memorydriven” facilitywith high RAM/CORE ratio • -Exploitedbynucleartheorists • 6-core, 32 GB RAM, 2 TB HD • -Localaccess

  13. IncontroNazionale di FisicaNucleare 12-14 Novembre 2012, INFN-LNS Catania Comitato Promotore: C.Agodi (LNS) M.Colonna (LNS) A.Gargano (NA) P.Gianotti (LNF) A.Guglielmetti (LNGS) A.Kievsky (PI) Comitato Locale: G.F.Burgio (CT) M. La Cognata (LNS) E.Lanza (CT) A.Musumarra (LNS) S.Pirrone (CT) G.Verde (CT) S.Lenzi (PD) D.Napoli (LNL) M.Radici (PV) P.Rossi (LNF) E.Scapparone(BO) E.Vigezzi (MI)

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