Head:

1
Head Alfred varc, Ph.D.
2
1960
Particle accelerator
Experiment
Theory
3
1970
Radioactive isotopes
Particle accelerators
Experiment
Analytical methods
Theory
4
1980
Radioactive isotopes
Particle accelerators
Experiment
Analytical methods
Theory
5
1990
Radioactive isotopes
Particle accelerators
Experiment
Analytical methods
Theory
6
2008
Radioactive isotopes
Tandem Van de Graaf
heavy-ion physics
Particle accelerators
nuclear physics of light nuclei
Experiment
I
intermediate energy particle physics
Neutron generator
electro-weak interactions astroparticles
high energy particle physics
Analytical methods
Theory
7
Experimental physics at LHC energies

• Research activities

• Higgs search
• Supersymmetric particle search
• Quark gluon plasma properties
• proton proton, proton lead reaction mechanisms

8
Projects and collaborations

• Contracts/collaborations

Croatian Ministry of Science Switzerland-
CERN NA49 (Large acceptance hadron
detector) ALICE (A large ion collider
experiment) CMS (Compact muon
solenoid) Mikrotrend (Croatia)
9
HADRONIC PHYSICS AND QCD

• Research activities

• in-medium dependence of hadron masses in
  Standard model
• understanding and determination of symmetry
  violation
• goal CP and C violation

10
Projects and collaborations

• Croatian Ministry of Science
• International Collaboration RBI -Mami
• International Collaboration
• RBI University of Viginia on PIBETA
  experiment

11
II
Radioactive isotopes
Tandem Van de Graaf
heavy-ion physics
Particle accelerators
nuclear physics of light nuclei
Experiment
I
intermediate energy particle physics
Neutron generator
electro-weak interactions astroparticles
high energy particle physics
Analytical methods
Theory
12
Heavy-Ion Physics

• Research activities

10Be

• Low energies
• Properties of nuclear surface
• multi-nucleon transfer reaction
• exotic structures
• nuclear rainbow
• Reaction mechanism
• fusion-(quasi)fission subbarrier fusion
• from quasi-elastic to deep inelastic
• Nuclear matter under extreme condition
• nuclear clusters and molecules
• structure towards neutron drip line

13

• Research activities (cnt.)

• Intermediate energies, Fermi energy
• Nuclear matter properties
• In-medium effects
• Binary dissipative collisions
  interplay of the nuclear mean field and
  residual n-n collisions
• Intermediate energies, elementary collisions
• Proton virtual bremsstrahlung and g-g
  coincidences
• Pion-induced fusion

14

• Research activities (cnt.)

• Relativistic energies, heavy-ion reactions
• Mass asymmetric systems
• ordered motion of nucleons
• better participant / spectator resolution
• Isospin dependence
• production of charged pions
• entropy production
• Strange meson production
• strange mesons at threshold

• Relativistic energies, pion reactions
• Strange meson production
• Ultrarelativistic energies (GSI FAIR project)
• Compressed Baryonic Matter (CBM)

15
Projects and collaborations

• Contracts / collaborations

Croatian Ministry of Science Germany (Darmstadt -
GSI, Berlin) France (Strasbourg, Nantes, Caen -
GANIL) Italy (LNL Legnaro, LNS Catania,
Universita di Padova and Torino) CRC
Louvain-la-Neuve GB University of
Birmingham The Netherlands (Groningen - KVI) FP6
I3 EURONS and HADRON PHYSICS FP7 project
Zagreb - Catania Birmingham coordination and
support actions REGPOT07
16
Projects and collaborations

• Responsibilities in collaborations

Spokesperson of experiments in Legnaro
LNL Catania LNS CRC Louvain-la-Neuve
IReS Strasbourg ANU Canberra Co-spokesperson
of an experiment in Groningen
KVI Responsibility for Plastic Wall of FOPI
detector in GSI, Darmstadt Responsibility for
PRISMA spectrometer focal plane LNL Legnaro
17
II
Radioactive isotopes
Tandem Van de Graaf
heavy-ion physics
Particle accelerators
nuclear physics of light nuclei
Experiment
I
intermediate energy particle physics
Neutron generator
electro-weak interactions astroparticles
high energy particle physics
Analytical methods
Theory
III
18
Massive Neutrinos and Astroparticles From
particle physics to cosmology

• EXPERIMENT
• Neutrino oscillations ( CERN - Gran Sasso) OPERA
  
• - Solar axions ( CERN, RBI ) CAST
• - Large extra dimensions ( RBI )
• THEORY
• - Cosmology
• - Large extra dimensions

19
II
Radioactive isotopes
Tandem Van de Graaf
heavy-ion physics
Particle accelerators
nuclear physics of light nuclei
Experiment
I
intermediate energy particle physics
Neutron generator
electro-weak interactions astroparticles
high energy particle physics
Analytical methods
Theory
III
20
Theory attached to experiments

• Hadron Spectroscopy
• Cosmology

21
Hadron spectroscopy
(Baryon resonances)
Research activities
establishing a link between experiment
and theory
22
Cosmology
(i) neutrino dark energy
We have shown that a simple coupled system of a
variable vacuum term and a gas of relic
neutrinos may account not only for a right
amount of dark energy at present, but also for a
near coincidence between the matter and
dark-energy densities to hold over a significant
portion of the history of the universe R.
Horvat, JCAP 0601 (2006)015.
(ii) holographic dark energy (iii)
renormalization-group running cosmology
Large extra dimensions
23
II
IV
Radioactive isotopes
Tandem Van de Graaf
heavy-ion physics
Particle accelerators
nuclear physics of light nuclei
Experiment
I
intermediate energy particle physics
Neutron generator
electro-weak interactions astroparticles
high energy particle physics
Analytical methods
Theory
III
24
Accelerator centre (the largest experimental
facility in Croatia)
Sputtering Ion source
Duoplasmatron Ion source
1.0 MV Tandetron
6.0 MV EN Tandem Van de Graaff

• Accelerator centre

Alphatross Ion source
External beam
PIXE RBS
H.R. PIXE
H.R. ERDA
Nuclear microprobe
Nuclear reactions
25
Projects and collaborations

• Croatian Ministry of Science
• Core project, information technology projects
• IAEA
• Technical cooperation projects (aprox. 0.5 MEu)
• EU
• INCO FP6 Project Upgrade of accelerator
  facility (aprox 0.25 MEu)
• Collaborations with
• Universita di Torino, ATOMKI Debrecen, IJS
  Ljubljana,...

26
V
II
IV
Radioactive isotopes
Tandem Van de Graaf
heavy-ion physics
Particle accelerators
nuclear physics of light nuclei
Experiment
I
intermediate energy particle physics
Neutron generator
electro-weak interactions astroparticles
high energy particle physics
Theory
III
27
Laboratory for Measurements of Low-level
Radioactivity
Measurements of cosmogenic isotopes 3H and 14C

• 1. Gas proportional counter technique
  (preparation of CH4)
• Liquid scintillation technique (benzene
  preparation method and CO2 absorption method)
• Acceleration mass spectroscopy (AMS) technique

28
V
II
IV
Radioactive isotopes
Tandem Van de Graaf
heavy-ion physics
Particle accelerators
nuclear physics of light nuclei
Experiment
I
intermediate energy particle physics
Neutron generator
electro-weak interactions astroparticles
high energy particle physics
Analytical methods
Theory
VI
III
29
Our main results
30
Publications 2002 2006
Total 262 in CC Journals (28 scientists 18
assistants and novices)
31
Phys. Rev. Lett 14
32
Phys. Lett B 13
33
Phys. Rev. C 39
34
Phys. Rev. D 6
35
Nucl. Phys. A,B 37
36
Nucl. Inst. Meth. A,B 39
37
Journ. Phys. G Nucl. Part. Phys. 10
38
Head Alfred varc, Ph.D.