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