UNIVERSITY Of CAGLIARI Department Of Physics RESEARCH PLAN .
UNIVERSITY of CAGLIARIDepartment of PhysicsRESEARCH PLAN 2013‐2015of theDEPARTMENT of PHYSICSas approved on December 17th, 2012Address: Dipartimento di Fisica ‐ Cittadella Universitaria, 09042 Monserrato (Ca)Phone: 070 675 4703 Fax: 070 510 171 E‐mail: direttore.fisica@dsf.unica.it1
UNIVERSITY of CAGLIARIDepartment of PhysicsINDEX1. Outlookpag. 32. Research domains according to "European Research Council" (ERC)pag. 43. Research plansDomain "High‐energy physics"Sub‐domain 02A1 "Experimental high‐energy physics"pag. 6Sub‐domain 02A2 "Theoretical high‐energy physics"pag. 11Domani "Condensed matter physics"Sub‐domain 02B1 "Experimental condensed matter physics"pag. 20Sub‐domain 02B2 "Theoretical condensed matter physics"pag. 35Sub‐domain 02B3 "Applied Physics"pag. 48Domain "Astronomy, astrophysics, and physics of earth and planets"Sub‐domain 02C1 "Astronomy, astrophysics, and physics of earth and planets" pag. 53Domain "Informatics"Sub‐domain 01B1 "Informatics"pag. 56Address: Dipartimento di Fisica ‐ Cittadella Universitaria, 09042 Monserrato (Ca)Phone: 070 675 4703 Fax: 070 510 171 E‐mail: direttore.fisica@dsf.unica.it2
UNIVERSITY of CAGLIARIDepartment of Physics1. OUTLOOKThe Department of Physics (DSF) of the University of Cagliari (UniCa) is the only academicinstitution in Sardegna which mission is addressed to research and higher education in thedomain of physical sciences. As such, DSF will play a key role in promoting culture,formation, and research in physics with large impact on the regional system.At present, the DSF research staff consistens in:8 full professors (PO)14 associate professors (PA)18 tenured assistant professors (RC‐TI)3 non‐tenured assistant professors (RC‐TD)In addition, the DSF workforce is completed by about ten Post Docs, about twenty Ph.D.students, and about ten graduate students in medical physics.Based on experimental, theoretical, and computational research activities, DSF will developnew advanced knowledge (curiosity‐driven as well as application‐oriented) in high‐energy,condensed matter, and applied physics, as well as in astrophysics.Full detail about any research line, the network of national and international collaborations,and the list of ongoing projects is reported in this document.Research plans are grouped according to the "Domain" and "Sub‐domain" system adoptedby the Italian Ministry for University and Research (MiUR) and they are listed, with referenceto the principal investigator, in alphabetical order. In addition, they are labeled according tothe classification scheme adopted by the "European Research Council" (ERC).DSF will guest and collaborate with the local sections of Italian Institute of Nuclear Phsyics(INFN), the Italian Istitute of Astrophysics (INAF), and two institutes belonging to theNational Council of Research (CNR), namely: the Institute "Materials Forgery" (IOM) and theInstitute for Atmospheric Sciences and Climatology (ISAC).Address: Dipartimento di Fisica ‐ Cittadella Universitaria, 09042 Monserrato (Ca)Phone: 070 675 4703 Fax: 070 510 171 E‐mail: direttore.fisica@dsf.unica.it3
UNIVERSITY of CAGLIARIDepartment of Physics2. RESEARCH DOMAINS ACCORDING TO "EUROPEAN RESEARCH COUNCIL" (ERC)The research activities here presented are labeled according to the general classificationscheme of "European Research Council" (ERC).Below is reported the ERC synopsis for the physical sciences.PE2 Fundamental constituents of matter:particle, nuclear, plasma, atomic, molecular, gas,and optical physicsPE3 Condensed matter physics:structure, electronic properties, fluids,nanosciencesPE2 1 Fundamental interactions and fieldsPE2 2 Particle physicsPE2 3 Nuclear physicsPE2 4 Nuclear astrophysicsPE2 5 Gas and plasma physicsPE2 6 ElectromagnetismPE2 7 Atomic, molecular physicsPE2 8 Optics and quantum opticsPE2 9 Lasers and laser physicsPE2 10 AcousticsPE2 11 RelativityPE2 12 Classical physicsPE2 13 ThermodynamicsPE2 14 Non‐linear physicsPE2 15 General physicsPE2 16 Metrology and measurementPE2 17 Statistical physics (gases)PE3 1 Structure of solids and liquidsPE3 2 Mechanical and acoustical properties ofcondensed matterPE3 3 Thermal properties of condensed matterPE3 4 Transport properties of condensed matterPE3 5 Electronic properties of materials andtransportPE3 6 Lattice dynamicsPE3 7 SemiconductorsPE3 8 SuperconductivityPE3 9 SuperfluidsPE3 10 SpintronicsPE3 11 MagnetismPE3 12 Nanophysics: nanoelectronics,nanophotonics, nanomagnetismPE3 13 Mesoscopic physicsPE3 14 Molecular electronicsPE3 15 Soft condensed matter (liquid crystals )PE3 16 Fluid dynamics (physics)PE3 17 Statistical physics (condensed matter)PE3 18 Phase transitions, phase equilibriaPE3 19 BiophysicsAddress: Dipartimento di Fisica ‐ Cittadella Universitaria, 09042 Monserrato (Ca)Phone: 070 675 4703 Fax: 070 510 171 E‐mail: direttore.fisica@dsf.unica.it4
UNIVERSITY of CAGLIARIDepartment of PhysicsPE4 Physical and Analytical Chemical sciences:analytical chemistry, chemical theory, physicalchemistry/chemical physicsPE4 1 Physical chemistryPE4 2 NanochemistryPE4 3 Spectroscopic and spectrometrictechniquesPE4 4 Molecular architecture and StructurePE4 5 Surface sciencePE4 6 Analytical chemistryPE4 7 Chemical physicsPE4 8 Chemical instrumentationPE4 9 Electrochemistry, electrodialysis,microfluidicsPE4 10 Combinatorial chemistryPE4 11 Method development in chemistryPE4 12 CatalysisPE4 13 Physical chemistry of biological systemsPE4 14 Chemical reactions: mechanisms,dynamics, kinetics and catalytic reactionsPE4 15 Theoretical and computational chemistryPE4 16 Radiation chemistryPE4 17 Nuclear chemistryPE4 18 PhotochemistryPE5 Materials and Synthesis:materials synthesis, structure‐properties relations,functional and advanced materials, moleculararchitecture, organic chemistryPE5 1 Structural properties of materialsPE5 2 Solid state materialsPE5 3 Surface modificationPE5 4 Thin filmsPE5 5 CorrosionPE5 6 Porous materialsPE5 7 Ionic liquidsPE5 8 New materials: oxides, alloys, composite,organic‐inorganic hybrid, superconductorsPE5 9 Materials for sensorsPE5 10 Nanomaterials : nanoparticles,nanotubesPE5 11 Biomaterials synthesisPE5 12 Intelligent materials – self assembledmaterialsPE5 13 Environment chemistryPE5 14 Coordination chemistryPE5 15 Colloid chemistryPE5 16 Biological chemistryPE5 17 Chemistry of condensed matterPE5 18 Homogeneous and heterogeneouscatalysisPE5 19 Characterization methods of materialsPE5 20 Macromolecular chemistry,PE5 21 Polymer chemistryPE5 22 Supramolecular chemistryPE5 23 Organic chemistryPE5 24 Molecular chemistryAddress: Dipartimento di Fisica ‐ Cittadella Universitaria, 09042 Monserrato (Ca)Phone: 070 675 4703 Fax: 070 510 171 E‐mail: direttore.fisica@dsf.unica.it5
UNIVERSITY of CAGLIARIDepartment of PhysicsRESEARCH PLANDomain "High‐energy physics"Sub‐domain 02A1 "Experimental high‐energy physics"Address: Dipartimento di Fisica ‐ Cittadella Universitaria, 09042 Monserrato (Ca)Phone: 070 675 4703 Fax: 070 510 171 E‐mail: direttore.fisica@dsf.unica.it6
UNIVERSITY of CAGLIARIDepartment of Physics1. Research titleProduction and characterization of the quark gluon plasma in ultra‐relativistic heavy ion collisions2. Principal investigatorsAlessandro De Falco, Gianluca Usai3. Research teamFull professorsAssociated professorsAssistant professorsPost docsPh. D. studentsINFN researchersGiovanna PudduGianluca UsaiAlessandro De FalcoCristina TerrevoliEster Casula, Alberto Collu, Elisa Incani, MashaRazazi, Sabyasachi SiddhantaAlberto Masoni (Direttore di Ricerca), CorradoCicalò (Primo Ricercatore)4. ERC (European Reserach Council) research classification schemePE2 1PE2 2PE2 35. Key wordsHeavy Ion CollisionsALICE LHCQuark Gluon Plasma6. National and international collaborations on this topicThe team is part of the ALICE international collaboration, LHC, CERN. It collaborates withCERN groups, French groups (Saclay, Nantes, Strasburgo, Lione), Torino (INFN, University),Padova (INFN, University), Bari (INFN, University), Heidelberg.7. AbstractThe team research is focused on the experimental program of the ALICE experiment at theCERN LHC. For the 2013‐2105 period, the activities will range from the study of muon pairsto the design of a new silicon pixel detector. The team will also study a new spectrometer tomeasure muon production at low energies at the CERN SPS.8. Framework and state‐of‐the‐artIn a ultra‐relativistic heavy ion collision (Pb‐Pb or Au‐Au), a large number of nucleonsinteract depositing a large energy (of the order of 1 GeV) in a rather small volume (of theorder of 1 fm3). This can lead to the production of a plasma with deconfined quarks andgluons, having properties similar to the plasma formed in the first stages of the Universebirth, around 3ms after the big bang. In the last 20 years, the properties of the quark gluonplasma were studied first at the CERN SPS and then at the RHIC collider at BNL. Presently theLHC can accelerate heavy ions at the largest energy ever reached (2.76 TeV/nucleon).Several experiments (ALICE, CMS e ATLAS) are performing new important measurements inthis new unexplored energy regime.Address: Dipartimento di Fisica ‐ Cittadella Universitaria, 09042 Monserrato (Ca)Phone: 070 675 4703 Fax: 070 510 171 E‐mail: direttore.fisica@dsf.unica.it7
UNIVERSITY of CAGLIARIDepartment of Physics9. Research description, milestones, and goalsThe research team is partecipating to heavy ion experiments, in particular focused on muonpair production, since 15 years. Muon pairs can be produced from the decays of lightmesons as the r(770), ω(780) e f(1020) or heavier as the J/ψ(3100), whose properties can besubstantially modified by the plasma medium. The production of charm and beauty is alsovery interesting since it allows one to study the production, propagation and hadronizationmechanisms of heavy quarks in the dense nuclear medium produced in the heavy ioncollisions.ALICE experiment ‐ The ALICE experiment is a world‐wide involving more than 80 researchinstitutes and about 1000 researchers.During 2013 a new measurement of proton‐Pb collisions will be performed. Within theapproved experimental program, the research team will be involved in the followingactivities:‐ Data taking proton‐Pb‐ Development of computing infrastructures based on the GRID technology for data analysisand data reconstruction.‐ Study of low mass dimuon production in Pb‐Pb collisions (m 1.2 GeV/c2)‐ Development of techniques for the combinatorial background subtraction in the dimuonmass spectrum.‐ Maintainance of the Muon Arm and Zero Degree Calorimeters (ZDC) detectors.Besides those activities, the team is also involved in the proposal for the construction of anew pixel vertex detector. The project was approved by the LHCC scientific committeeduring the 2012 fall. This detector will allow one to measure with high precision theproduction of charm and beauty mesons and baryons. The team will be involved in thefollowing activities:‐ Study of the production of beauty baryons‐ Study and characterization of new pixel detectorsResponsibiities within the collaboration:‐ Conveener of the working group in charge for defining the new experimental program inthe period 2018‐2025 with the new pixel detector and editor of the Letter of Intent (G. Usai)‐ Conveener of the Physics Analysis Working group in charge for the analysis of low massmuon pairs (A. De Falco)A. De Falco is responsible for the Cagliari unit of the project PRIN Development of computingtechnologies for the optimisation of access to LHC data and for the technology transfertowards other research areas using the grid and cloud computing approach.NA60 experiment ‐ The NA60 experiment at the CERN SPS has been directed by G. Usai andwill finish the experimental program focused on the proton‐nucleus data in 2013. G. Usai isresponsible for a PRIN project Chiral symmetry restoration and search of the QCD criticalpoint: measurements of dilepton production in nuclear collisions at the CERN SPS has beenapproved devoted to study a new spectrometer to extend the measurements performed byNA60 to the enery interval 20‐160 GeV/nucleon. The team will be involved in the followingactivities:‐ Monte Carlo simulations of the experimental apparatus to optmize the pixel and muontracking stations‐ Study of low mass dimuon production as a function of energy in the interval 20‐160GeV/nucleon Sand as a function of centrality.Address: Dipartimento di Fisica ‐ Cittadella Universitaria, 09042 Monserrato (Ca)Phone: 070 675 4703 Fax: 070 510 171 E‐mail: direttore.fisica@dsf.unica.it8
UNIVERSITY of CAGLIARIDepartment of Physics1. Research titlePhysics of quarks and leptons: Heavy Flavours at LHCb and Polarized targets for neutrinoexperiments.2. Principal investigatorBiagio Saitta3. Research teamProfessorsAssociated professorsAssistant professorsBiagio SaittaGiulia Manca,Rudolf OldemanPost docsPh. D. students4. ERC (European Research Council) research classification schemePE2 1PE2 25. Key wordsFlavour physicsLHCNeutrinos6. National and international collaborations‐ W. Bonivento, S. Cadeddu, A. Cardini, A. Contu, and A. Lai, researchers from the localsection of the Istituto Nazionale di Fisica Nucleare (INFN) operating under the frameworkagreement between INFN and the University of Cagliari, are integral part of the group.‐ For the LHCb experiment: INFN, CERN and about 50 Institutions from 14 differentcountries (Europe, Brazil, China, US)‐ For the neutrino project: University and INFN Padova.7. AbstractDuring the next three years the group will pursue a wide range of topics related to thephysics of heavy flavours, using data collected by the LHCb experiment at CERN, addressingin particular production cross‐sections, charm physics and rare decays of both charmed andB‐mesons. In addition the group will contribute to the foreseen upgrade of the experiment,taking advantage of the expertise of some of its members in the development of detectorsand electronics. It is also expected that the studies on the feasibility of polarized targets forneutrino physics will reach completion on a similar time scale, setting the basis for a largerscale experiment.8. Framework and state‐of‐the‐artFlavour physics is at the heart of several long‐standing fundamental questions of particlephysics and cosmology: What is the origin of the asymmetry between matter and antimatterin the universe? What is the solution of the hierarchy problem, the mechanism thatquantum corrections to the mass of the Higgs boson require extreme fine tuning to separateit from the Planck scale? The yield of particles containing b‐quarks at the LHC is now anorder of magnitude higher than achieved so far at any previous accelerator and therefore itis possible to perform a wide range of measurements of unprecedented precision and tosearch for very rare decay modes.Address: Dipartimento di Fisica ‐ Cittadella Universitaria, 09042 Monserrato (Ca)Phone: 070 675 4703 Fax: 070 510 171 E‐mail: direttore.fisica@dsf.unica.it9
UNIVERSITY of CAGLIARIDepartment of PhysicsIn the Standard Model of electroweak interactions, left‐handed neutrinos interact mainlywith left‐handed electrons (or nuclei), owing to the V‐A Lorentz structure of the current. Anew generation of neutrino experiments could stem from the exploitation of this feature ‐so far unused – which makes it possible, by controlling the polarization of the target, toalter the rate of weak interactions.9. Research description, milestones, and goalsLHCb – analyses. In 2012, LHCb recorded 2.0 fb‐1 of pp collisions, twice as much as in 2011,and at a slightly higher energy of 4.0TeV per beam (3.5TeV in 2011). This new, larger datasample will be used both to update and improve existing measurements and to start newanalyses. In particular it is foreseen: To update and extend the already published Upsilon production cross‐section with theinclusion of measurements of its polarization and of the excited states χb (including therecently discovered χb(3P) state, whose production cross‐section has never beenmeasured). To analyse the decay of the neutral D‐meson into two muons and two pions, takingadvantage of the excellent muon identification capabilities of the LCHb detector with theintent of setting the best world limit on this decay mode, similar to that obtained in2012 for D μμ. To complete the development of novel methods to identify the presence of thecharmed baryon Λc in a decay without the need to reconstruct it, thus enabling ameasurement of its absolute decay branching fractions, very poorly known so far. To set limits on the lepton flavour violating decay mode Bs μτ.LHCb –upgrade. A major upgrade of the LHCb experiment is being prepared for the datataking periods from 2019 onwards, in which it is envisaged that the detector will be read outat 40MHz instead of the present 1 MHz. This will allow running at 2.5 to 5 times the presentluminosity, increasing the efficiencies for hadronic B decays. The group is involved in theupgrade of the muon detection system which requires a modification of the electronics usedfor the readout. Furthermore, if tests that are underway demonstrate that the inner regionsof the upstream muon detectors loose efficiency at high luminosity, it might provenecessary to develop new, high‐granularity detectors (like triple Gas Electron Multipliers) aswell as new digital front‐end electronics.Several members of the group have recognised leadership roles within the internationalcollaboration and therefore are in a position to ensure the achievement of these goals.Neutrinos. R & D studies towards the realisation of a neutrino target/detector, in which thepolarization state of the electrons is controlled by an external magnetic field, havedemonstrated in 2012 that it is possible to obtain about 80% of the maximum allowedpolarization by placing small GSO scintillating crystals in a magnetic field of 4T at cryogenictemperatures of about 4K. It is planned: to extend the measurements to larger crystals already available; to detect (using a SQUID), synchronously with the scintillation, the signal due to thechange in magnetisation caused by the energy deposited in the GSO crystals byelectrons or photons; to complete the studies on the performance at low temperatures of avalanchephotodiodes (APD); to simulate the effects of new types of neutrino interactions (right‐handed currents,magnetic moment) to estimate in a quantitative manner the advantage of having apolarised target.Address: Dipartimento di Fisica ‐ Cittadella Universitaria, 09042 Monserrato (Ca)Phone: 070 675 4703 Fax: 070 510 171 E‐mail: direttore.fisica@dsf.unica.it10
UNIVERSITY of CAGLIARIDepartment of PhysicsRESEARCH PLANDomain "High‐energy physics"Sub‐domain 02A2 "Theoretical high‐energy physics"Address: Dipartimento di Fisica ‐ Cittadella Universitaria, 09042 Monserrato (Ca)Phone: 070 675 4703 Fax: 070 510 171 E‐mail: direttore.fisica@dsf.unica.it11
UNIVERSITY of CAGLIARIDepartment of Physics1. Research titleBlack holes and the gravity/gauge theory correspondence2. Principal investigatorMARIANO CADONI3. Research teamFull professorsAssociated professorsAssistant professorsPost docsPh. D. studentsMARIANO CADONIMATTEO SERRA4. ERC (European Reserach Council) research classification schemePE2 1PE2 115. Key wordsBlack holesgravity/gauge theory correspondence6. National and international collaborations on this topicP. Pani, IST , Lisbon, Portugal; S. Mignemi, Dip. Mathematics University of Cagliari7. AbstractWe plan to use the gravity /gauge theory correspondence to investigate several interestinghot problems of high energy theoretical physics:1. Holographic description of critical systems2. Domain wall/cosmology correspondence3. Non perturbative features of QCD4. Microscopic entropy of black holes and other extended objects8. Framework and state‐of‐the‐artIn the large N limit the conjectured string theory in AdS/gauge theory correspondencereduces to a duality between Anti‐de Sitter
UNIVERSITY of CAGLIARI Department of Physics Address: Dipartimento di Fisica ‐ Cittadella Universitaria, 09042 Monserrato (Ca) Phone: 070 675 4703 Fax: 070 510 171 E‐mail: direttore.fisica@dsf.unica.it 3 1. OUTLOOK The Department of Physics (DSF) of the University of Cagliari (UniCa) is the only academic
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UNIVERSITÀ DEGLI STUDI DI CAGLIARI DIPARTIMENTO DI PEDAGOGIA, PSICOLOGIA, FILOSOFIA VERBALE DELLA COMMISSIONE INCARICATA DELL'AFFIDAMENTO DEGLI INCARICHI DI INSEGNAMENTO V ACANTI PER L' A.A. 2013/14 SSD M-PSI/01, M-PED/01, M-PED/03 La Commissione, nominata dal Dipartimento di Pedagogia, Psicologia, Filosofia, è composta da: Pro f.
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Desidero ringraziare il Dipartimento di Filologie e Letterature Moderne dell’Università degli Studi di Cagliari per il supporto ottenuto in questi quattro anni, in particolare le mie tutores, le proff.sse Luisa Mulas e Maria Antonietta Cortini. È stato un anno difficile,ma siamo arrivati in porto.
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