Take R. Saito, for the HypHI collaboration GSI-Darmstadt

Name: Take R. Saito, for the HypHI collaboration GSI-Darmstadt
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Description: Take R. Saito, for the HypHI collaboration GSI-Darmstadt

The HypHI project at GSI Hypernuclear spectroscopy with heavy ion beams
Take R. Saito, for the HypHI collaboration GSI-Darmstadt Helmholtz Center for Heavy Ion Reserach and Johannes Gutenberg-Universität Mainz

How much can we extend this landscape?
L-hypernuclear chart Around the b-stability line (p+,K+), (K-,p-), (e,e’K+) BNL, KEK, J-PARC, CEBAF, FINUDA, MAMI C Neutron rich hypernuclei (K-,p+) J-PARC, FINUDA Toward hypernuclei at necleon drip-lines: Hypernuclei at extreme isospins Heavy ion collision JINR, HypHI The HypHI project, T.R. Saito, HYP2006 Mainz

Heavy Ion Beams: Powerful Tools for Hypernuclear Spectroscopy
Relativistic hypernuclei: projectile fragment → hypernuclei The HypHI project, T.R. Saito, HYP2006 Mainz

How much can we extend this landscape?
L-hypernuclear chart Around the b-stability line (p+,K+), (K-,p-), (e,e’K+) BNL, KEK, J-PARC, CEBAF, FINUDA, MAMI C Neutron rich hypernuclei (K-,p+) J-PARC, FINUDA Toward hypernuclei at necleon drip-lines: Hypernuclei at extreme isospins Heavy ion collision JINR, HypHI The HypHI project, T.R. Saito, HYP2006 Mainz

Hypernuclear magnetic moments
With meson and electron beam induced hypernuclear production Very small recoil momentum of produced hypernuclei Almost impossible to perform direct measurements of hypernuclear magnetic moments B(M1) measurements with g-ray spectroscopy Hyperball-J at J-PARC Contributions from nuclear collective motion have to be subtracted With heavy ion collisions Hypernuclei at projectile rapidity → relativistic hypernuclei Hypernuclei can be separated by a magnetic spectrometer Precession of hypernuclear spin alignment in magnetic field Perturbed p- asymmetry → magnetic moments Can be performed only at FAIR in near future The HypHI project, T.R. Saito, HYP2006 Mainz

The HypHI project, T.R. Saito, HYP2006 Mainz
Hypernuclear spectroscopy with heavy ion beams at GSI/FAIR LOI: submitted to the GSI PAC in March 2005 Approved by Helmholtz Association as Helmholtz-University Young Investigators group at GSI with Mainz University A proposal of the Phase 0 experiment Submitted to the GSI PAC To be discussed on October 23rd Giessen University, Germany GSI (DVEE, KP2, KP3), Germany JINR, Dubna, Russia Johannes Gutenberg University Mainz, Germany KEK, Japan Moscow State University, Russia Nara Women’s University, Japan Niels Bohr Institute, Denmark Osaka Electro-Communication University, Japan Osaka University, Japan Peking University, China RIKEN, Japan Soltan Institute for Nuclear Studies, Poland Tokyo University, Japan Tokyo University of Science, Japan Tohoku University, Japan TRIUMF, Canada Still expanding …… Spokesperson : Take R. Saito, GSI The HypHI project, T.R. Saito, HYP2006 Mainz

Hypernuclei with Heavy Ion Beams: The HypHI project
Heavy ion induced reaction at relativistic energies (heavy-ion collision) NN -> LKN : Energy threshold ~ 1.6 GeV Heavy ion beams with E > 1.6 GeV/u needed Stable heavy ion beam at GSI Stable heavy ion beam at FAIR RI-beam from FRS and super-FRS Large Lorentz factor g (>3) Effective lifetime : Longer by the Lorentz factor 200 ps -> 600 ps with g=3 200 ps -> 4 ns with g=20 Only a few light hypernuclei so far identified with heavy ion beams at Dubna (3LH and 4LH, ~ 0.2 mb, with 4He and 7Li beams) L The HypHI project, T.R. Saito, HYP2006 Mainz

Heavy Ion Beams: Powerful Tools for Hypernuclear Spectroscopy
E > 1.7 A GeV I > 105/s FRS Super-FRS The HypHI project, T.R. Saito, HYP2006 Mainz

Hypernuclei with Heavy Ion Beams: The HypHI project
Heavy ion induced reaction at relativistic energies (heavy-ion collision) NN -> LKN : Energy threshold ~ 1.6 GeV Heavy ion beams with E > 1.6 GeV/u needed Stable heavy ion beam at GSI Stable heavy ion beam at FAIR RI-beam from FRS and super-FRS Large Lorentz factor g (>3) Effective lifetime : Longer by the Lorentz factor 200 ps -> 600 ps with g=3 200 ps -> 4 ns with g=20 Only a few light hypernuclei so far identified with heavy ion beams at Dubna (3LH and 4LH, ~ 0.2 mb, with 4He and 7Li beams) L The HypHI project, T.R. Saito, HYP2006 Mainz

HypHI at GSI/FAIR: Concept of Experiments
Produced hypernucleus at the similar velocity of projectiles Large Lorents factor g > 3 200ps -> 600ps (g=3), hypernuclear decay in flight Example : 12C + 12C -> ALZ + K+,0 + X Mesonic weak decay L -> p- + p Non-mesonic weak-decay Lp -> np Magnet target n L-Hypernucleus K Residues Scintillators + diamond Trackers N-detector K+ counter p, p The HypHI project, T.R. Saito, HYP2006 Mainz

Goals of the HypHI project
Hypernuclear magnetic moments Quark bulding blockes Quark Pauli blocking effect L/S coupling as functions of isospins Kaon currents in the nuclear matter Hypernuclei at extreme isospins Cold neutron matter L/S coupling The HypHI project, T.R. Saito, HYP2006 Mainz

Accelerator facility at GSI
The HypHI project, T.R. Saito, HYP2006 Mainz

Accelerator facility at GSI
FRS The HypHI project, T.R. Saito, HYP2006 Mainz

Phase 0 of HypHI The goal of the Phase 0 experiments To confirm Dubna’s hypernuclear production at 2 A GeV with 6Li primary beams : Mesonic decay L -> p- + p 3LH -> p- + 3He 4LH -> p- + 4He 5LHe -> p- + 4He + p The HypHI project, T.R. Saito, HYP2006 Mainz

ALADiN magnet The HypHI project, T.R. Saito, HYP2006 Mainz

TOF detectors TOF-start (new development) Polycrystalline diamond detector High rate: 108 /s Excellent time resolution: < 15 ps ALADiN TOF wall (existing) Plastic scintillator bars For negative charged particles (mainly p-) Horizontal(x)-vertical(y) tracking TOF+ (new development) For positive charged particles xy tracking GSI The HypHI project, T.R. Saito, HYP2006 Mainz

Scintillating fiber arrays
TR0 x and y planes Energy and time readout TR1 and TR2 x, y and d planes Time readout Used for tracking triggers Osaka Electro-communication University, Osaka Univ., Mainz Univ., GSI The HypHI project, T.R. Saito, HYP2006 Mainz

Trigger design target Tracking trigger (K+ and K0 channel) Two types of vertices One vertex in the target Meson production Fragmentation Vertex out of the target Hypernuclear decay Free-L decay FPGA/DSP based trigger module Efficiency to 4LH events : ~ 14 % GSI, Mainz Univ. TR1 → HypHI poster, S. Minami et al The HypHI project, T.R. Saito, HYP2006 Mainz

p- trigger (hypernuclear decay)
p- from the target Low momentum Hitting to the side yoke of the ALADiN magnet p- from hypernuclei and free-L at projectile rapidity region Lorentz boosted at g~3 Larger momentum Observed by the ALADiN TOF Efficiency 28 % for 4LH events → HypHI poster, S. Minami et al The HypHI project, T.R. Saito, HYP2006 Mainz

Z=2 trigger by TOF+ Z=2 particles from the hypernuclear decay 3LH -> 3He + p- 4LH -> 4He + p- 5LHe -> 4He + p + p- By TOF+ Efficiency 95 % for 4LH events → HypHI poster, S. Minami et al The HypHI project, T.R. Saito, HYP2006 Mainz

Estimates 4LH Beam: 6Li, 107 /s, 2 A GeV Target: 12C, 8 g/cm2 Trigger efficiency with tracking + p- + Z=2: 7 % Trigger rate: ~ 340 Hz Additional detectors considered K+ detector: Osaka Univ. Drift chambers: GSI, KEK Proposal: submitted to the GSI PAC Experiment: beginning of 2008 What to be measured: Cross section Lifetime Polarization Forward correlation between L and other charged particles → HypHI poster, S. Minami et al The HypHI project, T.R. Saito, HYP2006 Mainz

HypHI Project at GSI/FAIR
2004 HypHI project started LOI and progress report to the GSI PAC, Design study Design study, preparation for the phase 0 experiment Phase 0: experiment with 3LH, 4LH and 5LHe Design study for the setup for hypenuclear non-mesonic weak decay measurements Phase 1: Experiments for proton-rich hypernuclei Phase 2: Experiment for neutron- rich hypernuclei at R3B/NuSTAR/FAIR Phase 3: Hypernuclear separator Hypernuclear magnetic moments Hypernuclear drip-lines 2005 2006 2007 2008 2009 2010 ~2011 The HypHI project, T.R. Saito, HYP2006 Mainz

Phase 0 2004 HypHI project started LOI and progress report to the GSI PAC, Design study Design study, preparation for the phase 0 experiment Phase 0: experiment with 3LH, 4LH and 5LHe Design study for the setup for hypenuclear non-mesonic weak decay measurements Phase 1: Experiments for proton-rich hypernuclei Phase 2: Experiment for neutron- rich hypernuclei at R3B/NuSTAR/FAIR Phase 3: Hypernuclear separator Hypernuclear magnetic moments Hypernuclear drip-lines 2005 > 103 /week > 104 /week 2006 2007 2008 2009 2010 ~2011 The HypHI project, T.R. Saito, HYP2006 Mainz

Phase 0 2004 HypHI project started LOI and progress report to the GSI PAC, Design study Design study, preparation for the phase 0 experiment Phase 0: experiment with 3LH, 4LH and 5LHe Design study for the setup for hypenuclear non-mesonic weak decay measurements Phase 1: Experiments for proton-rich hypernuclei Phase 2: Experiment for neutron- rich hypernuclei at R3B/NuSTAR/FAIR Phase 3: Hypernuclear separator Hypernuclear magnetic moments Hypernuclear drip-lines 2005 > 103 /week > 104 /week 2006 Phase 1 2007 2008 2009 2010 ~2011 The HypHI project, T.R. Saito, HYP2006 Mainz

Phase 0 2004 HypHI project started LOI and progress report to the GSI PAC, Design study Design study, preparation for the phase 0 experiment Phase 0: experiment with 3LH, 4LH and 5LHe Design study for the setup for hypenuclear non-mesonic weak decay measurements Phase 1: Experiments for proton-rich hypernuclei Phase 2: Experiment for neutron- rich hypernuclei at R3B/NuSTAR/FAIR Phase 3: Hypernuclear separator Hypernuclear magnetic moments Hypernuclear drip-lines 2005 > 103 /week > 104 /week 2006 Phase 1 2007 2008 2009 2010 Phase 2 ~2011 The HypHI project, T.R. Saito, HYP2006 Mainz

Phase 0 2004 HypHI project started LOI and progress report to the GSI PAC, Design study Design study, preparation for the phase 0 experiment Phase 0: experiment with 3LH, 4LH and 5LHe Design study for the setup for hypenuclear non-mesonic weak decay measurements Phase 1: Experiments for proton-rich hypernuclei Phase 2: Experiment for neutron- rich hypernuclei at R3B/NuSTAR/FAIR Phase 3: Hypernuclear separator Hypernuclear magnetic moments Hypernuclear drip-lines 2005 > 103 /week > 104 /week 2006 Phase 1 2007 2008 2009 2010 Phase 3 ~2011 The HypHI project, T.R. Saito, HYP2006 Mainz

International Hypernuclear Network
PANDA at FAIR 2012~ Anti-proton beam Double L-hypernuclei g-ray spectroscopy SPHERE at JINR Heavy ion beams Single L-hypernuclei MAMI C 2007~ Electro-production Single L-hypernuclei L-wavefunction HypHI at GSI/FAIR Heavy ion beams Single L-hypernuclei at extreme isospins Magnetic moments JLab 2006~ Electro-production Single L-hypernuclei L-wavefunction FINUDA at DAFNE e+e- collider Stopped-K- reaction Single L-hypernuclei g-ray spectroscopy (2012~) J-PARC 2009~ Intense K- beam Single and double L-hypernuclei g-ray spectroscopy for single L The HypHI project, T.R. Saito, HYP2006 Mainz

Backup slides The HypHI project, T.R. Saito, HYP2006 Mainz

Trigger design target Tracking trigger (K+ and K0 channel) Two types of vertices One vertex in the target Meson production Fragmentation Vertex out of the target Hypernuclear decay Free-L decay FPGA/DSP based trigger module Efficiency to 4LH events : ~ 14 % TR1 The HypHI project, T.R. Saito, HYP2006 Mainz

Tracking trigger Made with scinitillating fiber trackers Secondary vertex behind the target Hypernuclear/L decay 500 MHz Discriminator card with GSI chip-3 LVDS VME Logic module with FPGA and DSP T to VME bus PMT HAMAMATSU 32 pixels From Mainz/KaoS collaboration VME Logic module with FPGA and DSP VME Logic module with FPGA and DSP New development at GSI Tracking trigger The HypHI project, T.R. Saito, HYP2006 Mainz

Phase 0 of HypHI The goal of the Phase 0 experiments To confirm Dubna’s hypernuclear production at 2 A GeV with 6Li primary beams : Mesonic decay L -> p- + p 3LH -> p- + 3He 4LH -> p- + 4He 5LHe -> p- + 4He + p The HypHI project, T.R. Saito, HYP2006 Mainz

Improved setup for phase 0
Positive charged particles p, d, t, 3He, 4He, 6Li Negative charged particles p- The HypHI project, T.R. Saito, HYP2006 Mainz

Expanding field FINUDA at Frascati J-PARC ->Noumi, Tamura, Fukuda, Nakazawa, Hiyama, -> De Mori ->Motoba, Garialdi, Tedeschi, Tang, Tang, Hahimoto, Song CEBAF PANDA at FAIR/GSI Kaos at MAMI C The HypHI project, T.R. Saito, HYP2006 Mainz

Expanding field FINUDA at Frascati J-PARC Difficulties on these experiments Direct measurements on hypernuclear magnetic moments Quark bulding blocks (Qurak Pauli effect and so on) L/S coupling Kaon currents in nuclei Hypernuclei away from the b-stability line (at extreme isospins), especiaaly for heavy hypernuclei Isospin dependence on the hyperon wavefunction LN interactions Very neutron rich hypernuclei (cold neutron matter) Very proton rich hypernuclei Heavy ion induced hypernuclear spectroscopy CEBAF PANDA at FAIR/GSI Kaos at MAMI C The HypHI project, T.R. Saito, HYP2006 Mainz

Why hypernuclei Baryons in the core of neutron stars Baryon-baryon interaction n (udd) p (uud) L (uds) S N.R. S.H. D.H. t ~ s N.N. : Nuclear reaction S.H. : Single-s Hypernuclei D.H. : Double-s Hypernuclei The HypHI project, T.R. Saito, HYP2006 Mainz

Hypernuclear landscape
Essential to study baryon-baryon interaction under SU(3)f 40/64 vertices can be studied with hypernuclei The HypHI project, T.R. Saito, HYP2006 Mainz

S=-1 sector Only 37 L-hypernuclei identified The HypHI project, T.R. Saito, HYP2006 Mainz

New VME logic module Purely VME based 256 channels I/O LVDS Fast logic calculations with a large FPGA at 500 MHz Slow complicated calculations by DSP Data transfer to the VME bus Modules will also be used by the MAMI C KaoS experiments The HypHI project, T.R. Saito, HYP2006 Mainz

FAIR: a future facility of GSI
Current facility NUSTAR China is an associated member of FAIR!! The HypHI project, T.R. Saito, HYP2006 Mainz

Hypernuclear separator (Phase 3)
Hypernuclear production at 20 A GeV at the FAIR facility Hypernuclei separated by a superconducting magnet 1m superconducting magnet scintillator barrel target collimator sweeping magnet detector for x,y,DE TR1 TR2 TP-MUSIC Sci1 Sci2 to beam dump ALADiN Hypernuclear magnetic moments Hypernuclei toward the nucleon drip-lines The HypHI project, T.R. Saito, HYP2006 Mainz

Hypernuclear production at 20 A GeV at the FAIR facility Hypernuclei separated by a superconducting magnet sweeping magnet ALADiN detector for x,y,DE Sci2 TR2 scintillator barrel TR1 superconducting magnet target 1m to beam dump TP-MUSIC collimator Sci1 Hypernuclear production at 20 A GeV. Carbon or diamond target, 12g/cm2. The HypHI project, T.R. Saito, HYP2006 Mainz

Hypernuclear production at 20 A GeV at the FAIR facility Hypernuclei separated by a superconducting magnet sweeping magnet ALADiN detector for x,y,DE Sci2 TR2 scintillator barrel TR1 superconducting magnet target 1m to beam dump TP-MUSIC collimator Sci1 4m long superconducting magnet. Separation of hypernuclei with the collimator. The HypHI project, T.R. Saito, HYP2006 Mainz

Separation by the 4m 5T magnet 6Li + 12C at 20 A GeV 10 20 30 40 [cm] 6Li, 4LHe, 4He 4LH 3LH, 3H 5LHe 3LHe, 3He The HypHI project, T.R. Saito, HYP2006 Mainz

Hypernuclear production at 20 A GeV at the FAIR facility Hypernuclei separated by a superconducting magnet sweeping magnet ALADiN detector for x,y,DE Sci2 TR2 scintillator barrel TR1 superconducting magnet target 1m to beam dump TP-MUSIC collimator Sci1 Removing light hadrons from the hypernuclear decay before the sweeping magnet. The HypHI project, T.R. Saito, HYP2006 Mainz

Hypernuclear production at 20 A GeV at the FAIR facility Hypernuclei separated by a superconducting magnet sweeping magnet ALADiN detector for x,y,DE Sci2 TR2 scintillator barrel TR1 superconducting magnet target 1m to beam dump TP-MUSIC collimator Sci1 Hypernuclear events reconstruction tagged by mesonic and non-mesonic weak decay The HypHI project, T.R. Saito, HYP2006 Mainz

Hypernuclear production at 20 A GeV at the FAIR facility Hypernuclei separated by a superconducting magnet sweeping magnet ALADiN detector for x,y,DE Sci2 TR2 scintillator barrel TR1 superconducting magnet target 1m to beam dump TP-MUSIC Precession of the spin distribution of hypernuclei. Precession angle : 225 degrees with free-L magnetic moment 205 degrees with 8.8% reduction due to the kaon exchanging current collimator Sci1 The HypHI project, T.R. Saito, HYP2006 Mainz

Hypernuclear production at 20 A GeV at the FAIR facility Hypernuclei separated by a superconducting magnet Asymmetric pionic hypernuclear decay Almost 4 p sr solid angle sweeping magnet ALADiN detector for x,y,DE Sci2 TR2 scintillator barrel TR1 superconducting magnet target 1m to beam dump TP-MUSIC Precession of the spin distribution of hypernuclei. Precession angle : 225 degrees with free-L magnetic moment 205 degrees with 8.8% reduction due to the kaon exchanging current collimator Sci1 The HypHI project, T.R. Saito, HYP2006 Mainz

Rate estimate with the hypernuclear separator (Phase 3)
Beam intensity : 1010/s at 20 A GeV Target : 12C, 12 g/cm2 Reconstruction efficiency in the decay region : 10 % The HypHI project, T.R. Saito, HYP2006 Mainz

Take R. Saito, for the HypHI collaboration GSI-Darmstadt

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Take R. Saito, for the HypHI collaboration GSI-Darmstadt

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