hadron reactions and spectroscopy - nupecc.org · andrzej magiera institute of physics jagiellonian...

HADRON REACTIONS AND SPECTROSCOPY

current and planned research conducted by the Polish groupsin international cooperation

ANDRZEJ MAGIERA

INSTITUTE OF PHYSICSJAGIELLONIAN UNIVERSITY

Institute of Physics, Jagiellonian University, KrakówInstitute of Nuclear Physics Polish Academy of Science, KrakówAGH, University of Science and Technology, KrakówCracow University of Technology, KrakówNational Centre for Nuclear Research, Warszawa, Otwock-Świerk, ŁódźUniversity of Warsaw, WarszawaWarsaw University of Technology, WarszawaUniversity of Silesia, KatowiceJan Kochanowski University, KielceUniversity of Wroclaw, Wrocław

WASA-at-COSY – FZ JülichKLOE-2 – INFN FrascatiHADES – GSINA61/SHINE – CERNPANDA – FAIR

nEDM – PSI VilligenJEDI – FZ Jülich

11 October 2013 NUPECC 2013, Cracow - A. Magiera - Hadron reactions and spectroscopy 1

11 October 2013 NUPECC 2013, Cracow - A. Magiera - Hadron reactions and spectroscopy 2

WASA-at-COSY CollaborationABC effect�� → ��

�� → �� → ��

�� → �� → ��

�� → ��

Charge Symmetry Breaking�� → ��

�� → ��

ηηηη-mesic nucleiππππ0, η, η, η, η and ωωωω decays

dacay mode physics decay mode physics

→ ��

→ ��

→ ��

ChPT – Dalitz plot parameters → �� CP

→ �� ChPT – box anomaly → �� C

→ ��

→ ��/��transition FF → ��

�� → ��new physics? dark boson?

→ �� double transition FF

[GeV]s2.2 2.4 2.6 2.8 3

[mb]

σ

0

0.2

0.4

0.6

��

�

�∙ ��

� ∙ ��

11 October 2013 3

WASA-at-COSY CollaborationABC effect – a new resonance?

pn →→→→ R →→→→ ∆∆∆∆∆∆∆∆ →→→→ dππππ0ππππ0

∆

∆

dπ

πp

n

� = �.��, � = . ��

I(J ππππ) = 0(3+)

�� → � → ��

SAID with

��

resonance

SAID with

��

resonance

R

NUPECC 2013, Cracow - A. Magiera - Hadron reactions and spectroscopy

M. Bashkanov at Structure of Baryons 2013

11 October 2013 4

WASA-at-COSY CollaborationCharge Symmetry Breaking

� �� 0

0 ��

��

2� �

��

2��

1

3�

2 0

0 �1��

2� �

3�

2��

��

�1 0

0 1� ��

1 0

0 �1

�� → � � !"�

�� → � � !"�

�� → � "��

� � ��

Charge Symmetry broken due toquark mass difference and their electric charge

for baryons analysis within ChPT with lagrangianpossessing the same symmetry


11 October 2013 5

KLOE & KLOE -2 Collaboration

• tests of discrete symmetries (CP, CPT, …)

• tests of quantum mechanics time-evolution of the entangled pairs of neutral kaons

• universality of the weak interaction ofleptons and quarkssearch for possible deviations from SM expectation of ΓΓΓΓ ( K±→→→→eνννν )/ΓΓΓΓ ( K→→→→µνµνµνµν ) to 0.4% precision

• investigations of the structure of the scalar mesons

• γγγγ−−−−γγγγ interaction

• study of the muon anomalous magnetic moment αµ

and the evolution of the fine structure constant αem

determination of the excitation function forthe e+e– → hadrons

• dark matter – search for narrow di-lepton resonances

DAΦΦΦΦNE e+e– collider at INFN Frascati

��

KLOE →→→→ KLOE-2

2.5 fb–1 →→→→ ~10 fb–1

φφφφ ~ 8 · 109 →→→→ φφφφ ~ 3 · 1010


11 October 2013 6

KLOE CollaborationCP violation in KS decay

KS → → → → ππππ0 ππππ0 ππππ0 CP(K

S) = 1 CP(ππππ0 ππππ0 ππππ0) = -1

e+e– →→→→ φφφφ→→→→ KSK

L �� → ��

< .�� ∙ ��

KS

tagging by KL

KL

tagging by KS

→→→→ π+π–


no simultaneous decays (∆t=0) in the same final state due to the destructive quantum interference

11 October 2013 7

KLOE & KLOE -2 CollaborationKaon interferometry: � → �� → ��

KLOE

decoherence parameter

ζ = (1.4 ± 9.5 ± 3.8) ·10-7

��

ππππ

ππππ

ππππ

ππππ t2 t1

∆∆∆∆t = t1 - t2

��


Au+Au1.25 AGeV

11 October 2013 8

HADES Collaboration

� beams from SIS18: protons, nuclei , pions

2.0 GeV < � < 3.2 GeV

� spectrometer with high invariant mass resolution - 2% at ρρρρ////ωωωω

� versatile detector for rear probes :

� dielectrons (e+,e-)

� strangeness: ΛΛΛΛ, Κ, Κ, Κ, Κ±±±±,0,0,0,0, , , , ΣΣΣΣ(1385), (1385), (1385), (1385), ΞΞΞΞ−−−−, , , , φφφφ

Hadron structure

• ΛΛΛΛ(1405) production

• EM Transition Form Factors of hadrons in medium

• kaons(Κ(Κ(Κ(Κ0000) , ) , ) , ) , ΞΞΞΞ(1321), (1321), (1321), (1321), φφφφ production in A+A

• ρρρρ////ωωωω mesons in NN and p+A

Side View

START

FW


11 October 2013 9

HADES CollaborationΛΛΛΛ(1405) doorway into bound ��

T. Hyodo, W. Weise PRC 77 (2008) 03524

ΛΛΛΛ(1405) – bound #$% system, resonance with 2 poles?

• pole shift?• interference with non-resonant ΣπΣπΣπΣπ• lower pole stronger?

ΛΛΛΛ(1405) pole

coupled channel calculation based on chiral dynamics(Oset, Magas, Weise, Hyodo, Lutz)

two pole structure as result of couplingbetween KN (bound state) and ΣπΣπΣπΣπ resonance

� + � → & �'() + �+*�

n+�� ⁄

+� �⁄+ �� ⁄


∆∆∆∆+

p

e+γγγγ*

p

p

p

11 October 2013 10

HADES CollaborationEM Transition Form Factor

main source: ∆∆∆∆→→→→pe+e– Dalitz decay

ππππ0 , ∆∆∆∆ – 1 pion exclusive production

BR (∆→∆→∆→∆→Ne+e–) ≅≅≅≅ 4*10-5

pp→→→→ppe+e– @3.5 GeV

• resonance contribution estimated fromppππππ0 and pnππππ+ channels

• resonances (R) with mass up to 2 GeV included

• calculations with point-like RNγγγγ* (QED)does not describe data

• emTFF(Me+e-) dependence very importantVector Meson contribution !


11 October 2013 11

NA61/SHINE Collaborationinelastic p+p interactions at beam momenta of 13 – 158GeV/c

as a reference for A+A and p+A collisions data

Observables include:

●inclusive spectra:�,*, �,-, #∗, ., &, *��

●two-particle correlations●multiplicity and transverse momentum fluctuations


antiProton Annihilations at Darmstadt

Polish participants /involvement

•Jagiellonian University, KrakówForward Tracker: straw detectors + digitizing electronics

• AGH, University of Science and Technology, KrakówFront end electronics for the Forward Tracker

• Krakow University of TechnologySupport structures for the Forward Spectrometer

• Institute of Nuclear Physics PAN, KrakówRead out electronics for the Central Tracker

• National Centre for Nuclear Research, WarszawaElectromagnetic Calorimeter, GEM detectors, slow control

Front-end card with ASICs developed at AGH

Prototype wire chamber built at UJ

11 October 2013 12

PANDA Collaboration


JEDIJülich Electric Dipole Moment Investigations

13

nEDM &JEDI Collaborations

1. „freeze” horizontal spin of polarized charged particle beam in storage ring along the momentum

2. apply a radial electric field3. watch for development of vertical polarization

polarimetryspin coherence timespin tune


p, d, 3He EDMpure / ring//0 ring

pure 0 ring

Phase I – 5·10-27ecm, Phase II – 5·10-28

ecm

nEDM@PSI

Now at COSY COSYprecursor experiment

first direct measurementsfor p, d ~10-24 ecm

dedicated SR ~10-29 ecm

pEDMdEDM

nEDMEDMs form an important class of flavour-diagonalCP-odd observables, testing/constraining new physics(motivated by the need of baryogenesis). …………….EDMs probe PeV sfermion scales characteristicof the large observed Higgs mass.

11 October 2013

Adam Ritz, PSI2013

hadron reactions and spectroscopy - nupecc.org · andrzej magiera institute of physics jagiellonian...

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