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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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slide1

Nuclear and HadronPhysics

(The theoryactivitieswithin INFN)

Maria Colonna

Laboratori Nazionali del Sud (Catania)

slide2

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
slide3

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)
slide4

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

slide5

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)

slide6

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, …

slide7

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)

slide8

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

slide9

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)
slide10

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
slide11

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)
slide12

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
slide13

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)