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II Division of Nuclear II Division of Nuclear Physics and Strong Physics and Strong
InteractionsInteractionsJan StyczeńJan Styczeń
Departments:2.1 Strong Interactions and Mechanism
of Nuclear Reactionsprof. Antoni Szczurek
2.2 Structure of Atomic Nucleusprof. Adam Maj
2.3 Ultrarelativistic Nuclear Physicsassoc. prof. Marek Kowalski (prof. Jerzy Bartke)
TasksTasks• Nuclear reaction mechanism at low-
and medium energies• Meson production in nuclear and
hadron collision• Structure and dynamics of many-body
systems• Properties of nuclei at normal and
extreme conditions• Radiation detectors; design and
construction• NA49 experiment on SPS at CERN• Relativistic nuclear collisions at LHC
SStatisticstatistics 2005-2006 2005-2006
• Publications („Philadelphia list”)
• other 21Dpt. 2.1 - 101 (sc. staff – 24)
Dpt. 2.2 - 56 ( - 14)
Dpt. 2.3 - 23 ( - 5)
• Invited talks International conf.’s
180
36
SStatisticstatistics 2005-2006 2005-2006
Organisation of international conferences:– Zakopane Conference on Nuclear Physics
(series: Zakopane School on Nuclear Physics) Sept. 2006; 150 participants
W. Męczynski, W. Królas et al.
– Meson 2006 (co-org. IF UJ)June 2006; 180 participants
A. Szczurek et al.
– Plenary NuPECC MeetingJune 2006; 32 participants
J.S.
International cooperationInternational cooperation
• GSI (RISING, ALADIN), Darmstadt• COSY (GEM, WASA, PISA), FZ-Juelich, • GANIL (SPIRAL1), IN2P3• INFN (Prisma+Clara), Legnaro• ANL (Gammasphere), Argonne• CERN (NA49, ALICE) • JINR (FAZA), Dubna
•U200 heavy ion cyclotron, ŚLCJ-UW, Warsaw
» Dpt. 2.1, Dpt. 2.2, Dpt. 2.3
New challenges in Nuclear New challenges in Nuclear StructureStructure
R.Broda, B.Fornal et al. (talk by W.Królas, tomorrow)deap-inelastic reactions
A.Maj et al. radioactive beams
R.Wolski et al.
J.Okolowicz
W. Męczynski et al.
A.Maj et al.
Large deformations Large deformations induced by fast rotationsinduced by fast rotationsJACOBI SHAPE TRANSITIONS IN HOT NUCLEI
GDR strength GDR strength functionfunctionin Lublin-in Lublin-Strasbourg-Drop Strasbourg-Drop model simulationmodel simulation
Large deformations at fast Large deformations at fast rotationsrotations
Euroball + HECTOR exp.Strasbourg
M.Kmiecik, A.Maj, W.Meczynski, J.S, et al. M.Kmiecik, A.Maj, W.Meczynski, J.S, et al.
The GDR feeds the highly The GDR feeds the highly deformed band in deformed band in 4242CaCa
4646TiTi*
--particle spectraparticle spectra
estimated deformation
for Z=20: 0.7<<1.0HD shape
estimated deformationfor Z=15-19:
=0.6SD shape
CACARIZO CODECACARIZO CODE experimentexperiment
β=0.1Spherical
shape
144 MeV 27Al + 19F 46Ti* lmax
35 , E* = 85 MeV
ICAREM.Brekiesz (PhD), A.Maj, W.Męczynski, M.KmiecikP.Bednarczyk, K.Zuber, J.S. et al.
IReS
Precision measurement of Precision measurement of the ŋ-meson massthe ŋ-meson mass
E
E2
E3
E1
Target
E
E2
E3
E1
Target
Magnet SpectrographBig Karl
GErmanium
Wall
beam
Target: 2-6 mm, walls: 1.5 mm
GEM Detector@COSY
R.Siudak, S.Kliczewski, A.Budzanowski et al.
Precision measurement of Precision measurement of the ŋ-meson massthe ŋ-meson mass
m= [547.311 0.028(stat.)±0.032(syst.)] MeV/c2
t + d π++ t, t + d t + π+, t + d 3He + η reactions used
Value adopted by Particle Data Group
Search for time reversal Search for time reversal vilating effectsvilating effects
NeutronNeutron -decay; -decay;
PSI, SPSI, SIINQ sourceNQ source
Decay rate formula for particles with vector polarization J:
A. Kozela, A. Białek et al.K.Bodek et al. IF UJ
Any higher R detected would signal new physicsbeyond Standard Model !
±2x10-5
Search for time reversal Search for time reversal vilating effectsvilating effects
R-correlation deduced from the angular distribution of backscattered electrons
PβS
[N’G
(α)
+R
H(α
)]
G(α) sin(α)
H(α) cos(α)
α
g
R = -0.022 ± 0.039 Fit to dataSM
• Anticipated accuracy of the experiment R ~ 0.005
Search for time reversal Search for time reversal vilating effectsvilating effects
RelRelatativistic ivistic radioactive radioactive beamsbeams
RISINGRISING project project
RRareare IIsotopesotopess SSpectroscopicpectroscopic ININvestigationvestigation atat GGSISI
RadiRadiooactive beamsactive beams
A. Maj, M. Kmiecik, J. Grębosz, P. Bednarczyk, W. Męczyński, K. Mazurek, S. Myalski (PhD), J. S. et al.
Fast beam campaigne Stopped beam campaigne
RISINGRISING
g-factor campaigne 600 MeV/u 136Xe beam (average intensity 2x108 pps) on 9Be targetRelativistic fragmentation
The deduced preliminary g-factor value, │0.16│, points to the 19/2+
n(h11/2- x 5-)
configuration
Proton and antiproton spectra from central Pb+Pb collisins
Ultrarelativistic collisionsUltrarelativistic collisions
NA49 NA49 experimentexperiment
Peripheral collisions,talk by dr. A. Rybicki
tomorrow!
(Anti-)Proton (Anti-)Proton yy-Spectra in -Spectra in Central Pb+Pb Central Pb+Pb CCollisionsollisions
Clear evolution of shape for protons
E.Kornaś (PhD), J.Bartke, M.Kowalski, A.Rybicki
Net p-distributionspeak - dip
forward rapidities
NetNet proton proton yy--sspectra in pectra in ccentral entral ccollisionsollisions
Advanced GAmma Tracking Array„„...for ...for - ray spectroscopy under - ray spectroscopy under extreme conditionsextreme conditions
Detector developmentDetector development
Great advantage for experimentsGreat advantage for experimentswith radioactive beamswith radioactive beams
Efficiency (Eγ=1 MeV): 38% (Mγ=1)
Sensitivity: 107
AGATA 4π γ- array
6 480 segments
‘Artist view’
We at A G A T AWe at A G A T A
hardware
AGAVA (AGata Ancillary VME Adapter)
Ancillary Detectors and Ancillary Ancillary Detectors and Ancillary Detector Integration Working GroupDetector Integration Working Group
EURONSEURONS (FP6) (FP6) 2005 – 2008, 2005 – 2008, ~70 kEuro ~70 kEuro
Data ProcessingData Processing
software
GUI - Graphic User Interface
project, tests, application
W.Męczyński, A. Czermak, B.Dulny, J.J.GręboszGrębosz, M.Ziębliński
ALICE – ALICE – AA LLarge arge IIon on CCollider ollider EExperimentxperiment
J.Bartke, E.Kornaś, M.Kowalski, A.Rybicki
Activities:• Detector simulations Time Projection Chamber• Software development• Data analysis
Size: 16 x 26 meters
Weight: 10,000 tons
~1000 members, ~30 countries, ~150 Institutes
PISA experimental setupPISA experimental setup PProton roton IInduced nduced SSppAAllationllation, COSY, COSY
A.Budzanowski, M.Kistryn, St.Kliczewski, E. Kozik, K.Pysz, R.Siudak et al.
First results of experiments ondouble differential cross sectionpublished
WWide ide AAngle ngle SSchower chower AApparatuspparatus
Designed for Studies of Production and Decays of Light
Mesons
High statistics for η meson decay
CP violationTransferred from CELSIUS (Uppsala) to COSY
(Juelich) in 2005-2006. Installed and switched into operation in 2006
WASA@COSY
P.Kulessa, K. Pysz et al.
A. Szczurek, W. Schaefer + 4PhD –K. A. Szczurek, W. Schaefer + 4PhD –K. Tichoruk, T.Pietrycki, A.Rybarska, G.ŚlipekTichoruk, T.Pietrycki, A.Rybarska, G.Ślipek
1). 1). Nuclear effectsNuclear effects in ultrarelativistic heavy- in ultrarelativistic heavy-ion collisions ion collisions
(a) Role of (a) Role of Fermi motionFermi motion on nuclear on nuclear modification factor Rmodification factor RAAAA
(b)(b) Role of Role of neutron skinneutron skin for for ππ++//ππ–– ratio ratio in in peripheral Pb-Pb collisions at SPS peripheral Pb-Pb collisions at SPS energiesenergies
(c) Role of (c) Role of Coulomb effectsCoulomb effects on π+/π on π+/π–– ratio in ratio in peripheral Pbperipheral Pb–Pb collisions at –Pb collisions at SPS energiesSPS energies
THEORY GROUPSTHEORY GROUPS
2). 2). QCD effectsQCD effects in high-energy hadron- in high-energy hadron-hadron collisions (SPS, RHIC, Tevatron, hadron collisions (SPS, RHIC, Tevatron, LHC)LHC)(Long term (Long term aimaim: from elementary : from elementary scattering scattering to nuclear collisionsto nuclear collisions))
(a)(a) inclusive production of particlesinclusive production of particles
– – Gauge bosonsGauge bosons at Tevatron and LHC at Tevatron and LHC
– – Standard Model Standard Model HiggsHiggs at LHC at LHC
– – Heavy quark/antiquarkHeavy quark/antiquark in photo- and in photo- and hadroproductionhadroproduction
– – Direct photonsDirect photons
– – PionsPions and and kaonskaons at SPS and RHIC at SPS and RHIC energiesenergies
(b) (b) particle correlationsparticle correlations
– – (Heavy-quark)–(heavy antiquark)(Heavy-quark)–(heavy antiquark) correlationscorrelations
– – DijetDijet and and Photon–jetPhoton–jet correlations correlations
(c) exclusive (diffractive) production of(c) exclusive (diffractive) production of
– – quarkonia quarkonia scalar scalar χχcc,χ,χb b and and pseudoscalar pseudoscalar η’,η’,ηηc c
– – HiggsHiggs
J. Okołowicz,shell model embedded in the continuum SMEC, two-proton decay calculations (45Fe, 48Ni, 54Zn)
A. Adamczakmuonic atoms and molecules
T. Srokowski,studies of diffusion (Lèvy eq.) in inhomogeneous medium
To conclude…To conclude…
• Rather rich scientific output• Strong scientific staff potential
with several world known physicists and experts
•PhD 10 (5)• Experiment and theory both
combined