The HypHI project at GSI The HypHI project at GSI Hypernuclear spectroscopy Hypernuclear spectroscopy with heavy ion beams with heavy ion beams Take R. Saito, for the HypHI collaboration Take R. Saito, for the HypHI collaboration GSI-Darmstadt GSI-Darmstadt Helmholtz Center for Heavy Ion Reserach Helmholtz Center for Heavy Ion Reserach and and Johannes Gutenberg-Universität Mainz Johannes Gutenberg-Universität Mainz
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The HypHI project at GSI Hypernuclear spectroscopy with heavy ion beams
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. - PowerPoint PPT Presentation
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The HypHI project at GSIThe HypHI project at GSI
Hypernuclear spectroscopy Hypernuclear spectroscopy with heavy ion beamswith heavy ion beams
Take R. Saito, for the HypHI collaborationTake R. Saito, for the HypHI collaboration
GSI-DarmstadtGSI-DarmstadtHelmholtz Center for Heavy Ion Reserach Helmholtz Center for Heavy Ion Reserach
and and Johannes Gutenberg-Universität MainzJohannes Gutenberg-Universität Mainz
How much can we extend this How much can we extend this landscape?landscape?
Around the Around the -stability line-stability line((++,K,K++), (K), (K--,,--), (e,e’K), (e,e’K++))BNL, KEK, J-PARC, CEBAF, FINUDA, MAMI CBNL, KEK, J-PARC, CEBAF, FINUDA, MAMI C
How much can we extend this How much can we extend this landscape?landscape?
Around the Around the -stability line-stability line((++,K,K++), (K), (K--,,--), (e,e’K), (e,e’K++))BNL, KEK, J-PARC, CEBAF, FINUDA, MAMI CBNL, KEK, J-PARC, CEBAF, FINUDA, MAMI C
Hypernuclear magnetic momentsHypernuclear magnetic moments
With meson and electron beam induced hypernuclear With meson and electron beam induced hypernuclear productionproduction
Very small recoil momentum of produced hypernucleiVery small recoil momentum of produced hypernuclei
Almost impossible to perform direct measurements of Almost impossible to perform direct measurements of hypernuclear magnetic momentshypernuclear magnetic moments
B(M1) measurements with B(M1) measurements with -ray spectroscopy-ray spectroscopy
Hyperball-J at J-PARCHyperball-J at J-PARC
Contributions from nuclear collective motion have to be Contributions from nuclear collective motion have to be subtractedsubtracted
With heavy ion collisionsWith heavy ion collisionsHypernuclei at projectile rapidity Hypernuclei at projectile rapidity →→ relativistic hypernuclei relativistic hypernuclei
Hypernuclei can be separated by a magnetic spectrometerHypernuclei can be separated by a magnetic spectrometer
Precession of hypernuclear spin alignment in magnetic fieldPrecession of hypernuclear spin alignment in magnetic field
Perturbed Perturbed -- asymmetry asymmetry →→ magnetic moments magnetic moments
Can be performed only at FAIR in near futureCan be performed only at FAIR in near future
The HypHI projectThe HypHI projectHypernuclear spectroscopy Hypernuclear spectroscopy with heavy ion beams at with heavy ion beams at GSI/FAIRGSI/FAIR
LOI: submitted to the GSI PAC LOI: submitted to the GSI PAC in March 2005in March 2005
Approved by Helmholtz Approved by Helmholtz Association as Helmholtz-Association as Helmholtz-University Young University Young Investigators group at GSI Investigators group at GSI with Mainz Universitywith Mainz University
A proposal of the Phase 0 A proposal of the Phase 0 experimentexperiment
Submitted to the GSI PACSubmitted to the GSI PACTo be discussed on October To be discussed on October 2323rdrd
Giessen University, GermanyGiessen University, GermanyGSI (DVEE, KP2, KP3), GermanyGSI (DVEE, KP2, KP3), GermanyJINR, Dubna, RussiaJINR, Dubna, RussiaJohannes Gutenberg University Johannes Gutenberg University Mainz, GermanyMainz, GermanyKEK, JapanKEK, JapanMoscow State University, RussiaMoscow State University, RussiaNara Women’s University, JapanNara Women’s University, JapanNiels Bohr Institute, DenmarkNiels Bohr Institute, DenmarkOsaka Electro-Communication Osaka Electro-Communication University, Japan University, Japan Osaka University, JapanOsaka University, JapanPeking University, ChinaPeking University, ChinaRIKEN, JapanRIKEN, JapanSoltan Institute for Nuclear Soltan Institute for Nuclear Studies, PolandStudies, PolandTokyo University, JapanTokyo University, JapanTokyo University of Science, JapanTokyo University of Science, JapanTohoku University, JapanTohoku University, JapanTRIUMF, CanadaTRIUMF, Canada
Still expanding …… Still expanding ……
Spokesperson : Take R. Saito, GSISpokesperson : Take R. Saito, GSI
Hypernuclei with Heavy Ion Hypernuclei with Heavy Ion Beams: Beams:
The HypHI projectThe HypHI projectHeavy ion induced reaction at Heavy ion induced reaction at relativistic energies (heavy-ion relativistic energies (heavy-ion collision)collision)
NN -> NN -> KN : Energy threshold ~ 1.6 KN : Energy threshold ~ 1.6 GeVGeVHeavy ion beams with E > 1.6 GeV/u Heavy ion beams with E > 1.6 GeV/u neededneededStable heavy ion beam at GSIStable heavy ion beam at GSIStable heavy ion beam at FAIRStable heavy ion beam at FAIRRI-beam from FRS and super-FRSRI-beam from FRS and super-FRS
Large Lorentz factor Large Lorentz factor Effective lifetime : Longer by the Effective lifetime : Longer by the Lorentz factorLorentz factor
200 ps -> 600 ps with 200 ps -> 600 ps with =3=3200 ps -> 4 ns with 200 ps -> 4 ns with =20 =20
Only a few light hypernuclei so Only a few light hypernuclei so far identified with heavy ion far identified with heavy ion beams at Dubna (beams at Dubna (33
H and H and 44H, ~ H, ~
0.2 0.2 b, with b, with 44He and He and 77Li beams)Li beams)
Hypernuclei with Heavy Ion Hypernuclei with Heavy Ion Beams: Beams:
The HypHI projectThe HypHI projectHeavy ion induced reaction at Heavy ion induced reaction at relativistic energies (heavy-ion relativistic energies (heavy-ion collision)collision)
NN -> NN -> KN : Energy threshold ~ 1.6 KN : Energy threshold ~ 1.6 GeVGeVHeavy ion beams with E > 1.6 GeV/u Heavy ion beams with E > 1.6 GeV/u neededneededStable heavy ion beam at GSIStable heavy ion beam at GSIStable heavy ion beam at FAIRStable heavy ion beam at FAIRRI-beam from FRS and super-FRSRI-beam from FRS and super-FRS
Large Lorentz factor Large Lorentz factor Effective lifetime : Longer by the Effective lifetime : Longer by the Lorentz factorLorentz factor
200 ps -> 600 ps with 200 ps -> 600 ps with =3=3200 ps -> 4 ns with 200 ps -> 4 ns with =20 =20
Only a few light hypernuclei so Only a few light hypernuclei so far identified with heavy ion far identified with heavy ion beams at Dubna (beams at Dubna (33
H and H and 44H, ~ H, ~
0.2 0.2 b, with b, with 44He and He and 77Li beams)Li beams)
Phase 0 of HypHIPhase 0 of HypHIThe goal of the Phase 0 experimentsThe goal of the Phase 0 experiments
To confirm Dubna’s hypernuclear production at 2 A GeV To confirm Dubna’s hypernuclear production at 2 A GeV with with 66Li primary beams : Mesonic decay Li primary beams : Mesonic decay -> -> -- + p + p
Proposal: submitted to the GSI PACProposal: submitted to the GSI PACExperiment: beginning of 2008Experiment: beginning of 2008
What to be measured: What to be measured: Cross sectionCross sectionLifetimeLifetimePolarizationPolarizationForward correlation between Forward correlation between and other charged particles and other charged particles
HypHI Project at GSI/FAIRHypHI Project at GSI/FAIR
HypHI project startedHypHI project startedLOI and progress report to the LOI and progress report to the GSI PAC, Design studyGSI PAC, Design study
Design study, preparation for Design study, preparation for the phase 0 experimentthe phase 0 experiment
Phase 0: experiment with Phase 0: experiment with 33H, H,
44H and H and 55
HeHe
Design study for the setup for Design study for the setup for hypenuclear non-mesonic hypenuclear non-mesonic weak decay measurementsweak decay measurementsPhase 1: Experiments for Phase 1: Experiments for proton-rich hypernucleiproton-rich hypernuclei
Phase 2: Experiment for Phase 2: Experiment for neutron- rich hypernuclei at neutron- rich hypernuclei at R3B/NuSTAR/FAIRR3B/NuSTAR/FAIR
HypHI Project at GSI/FAIRHypHI Project at GSI/FAIR
HypHI project startedHypHI project startedLOI and progress report to the LOI and progress report to the GSI PAC, Design studyGSI PAC, Design study
Design study, preparation for Design study, preparation for the phase 0 experimentthe phase 0 experiment
Phase 0: experiment with Phase 0: experiment with 33H, H,
44H and H and 55
HeHe
Design study for the setup for Design study for the setup for hypenuclear non-mesonic hypenuclear non-mesonic weak decay measurementsweak decay measurementsPhase 1: Experiments for Phase 1: Experiments for proton-rich hypernucleiproton-rich hypernuclei
Phase 2: Experiment for Phase 2: Experiment for neutron- rich hypernuclei at neutron- rich hypernuclei at R3B/NuSTAR/FAIRR3B/NuSTAR/FAIR
HypHI Project at GSI/FAIRHypHI Project at GSI/FAIR
HypHI project startedHypHI project startedLOI and progress report to the LOI and progress report to the GSI PAC, Design studyGSI PAC, Design study
Design study, preparation for Design study, preparation for the phase 0 experimentthe phase 0 experiment
Phase 0: experiment with Phase 0: experiment with 33H, H,
44H and H and 55
HeHe
Design study for the setup for Design study for the setup for hypenuclear non-mesonic hypenuclear non-mesonic weak decay measurementsweak decay measurementsPhase 1: Experiments for Phase 1: Experiments for proton-rich hypernucleiproton-rich hypernuclei
Phase 2: Experiment for Phase 2: Experiment for neutron- rich hypernuclei at neutron- rich hypernuclei at R3B/NuSTAR/FAIRR3B/NuSTAR/FAIR
HypHI Project at GSI/FAIRHypHI Project at GSI/FAIR
HypHI project startedHypHI project startedLOI and progress report to the LOI and progress report to the GSI PAC, Design studyGSI PAC, Design study
Design study, preparation for Design study, preparation for the phase 0 experimentthe phase 0 experiment
Phase 0: experiment with Phase 0: experiment with 33H, H,
44H and H and 55
HeHe
Design study for the setup for Design study for the setup for hypenuclear non-mesonic hypenuclear non-mesonic weak decay measurementsweak decay measurementsPhase 1: Experiments for Phase 1: Experiments for proton-rich hypernucleiproton-rich hypernuclei
Phase 2: Experiment for Phase 2: Experiment for neutron- rich hypernuclei at neutron- rich hypernuclei at R3B/NuSTAR/FAIRR3B/NuSTAR/FAIR
HypHI Project at GSI/FAIRHypHI Project at GSI/FAIR
HypHI project startedHypHI project startedLOI and progress report to the LOI and progress report to the GSI PAC, Design studyGSI PAC, Design study
Design study, preparation for Design study, preparation for the phase 0 experimentthe phase 0 experiment
Phase 0: experiment with Phase 0: experiment with 33H, H,
44H and H and 55
HeHe
Design study for the setup for Design study for the setup for hypenuclear non-mesonic hypenuclear non-mesonic weak decay measurementsweak decay measurementsPhase 1: Experiments for Phase 1: Experiments for proton-rich hypernucleiproton-rich hypernuclei
Phase 2: Experiment for Phase 2: Experiment for neutron- rich hypernuclei at neutron- rich hypernuclei at R3B/NuSTAR/FAIRR3B/NuSTAR/FAIR
Phase 0 of HypHIPhase 0 of HypHIThe goal of the Phase 0 experimentsThe goal of the Phase 0 experiments
To confirm Dubna’s hypernuclear production at 2 A GeV To confirm Dubna’s hypernuclear production at 2 A GeV with with 66Li primary beams : Mesonic decay Li primary beams : Mesonic decay -> -> -- + p + p
Hypernuclear separator (Phase 3)Hypernuclear separator (Phase 3)Hypernuclear production at 20 A GeV at the FAIR Hypernuclear production at 20 A GeV at the FAIR facilityfacility
Hypernuclei separated by a superconducting magnetHypernuclei separated by a superconducting magnet
1m
superconducting magnet
scintillator barrel
target
collimator
sweeping magnet
detector for x,y,E
TR1TR2
TP-MUSIC
Sci1
Sci2
to beam dump
ALADiN
• Hypernuclear magnetic moments• Hypernuclei toward the nucleon drip-lines
Hypernuclear separator (Phase 3)Hypernuclear separator (Phase 3)Hypernuclear production at 20 A GeV at the FAIR Hypernuclear production at 20 A GeV at the FAIR facilityfacility
Hypernuclei separated by a superconducting magnetHypernuclei separated by a superconducting magnet
1m
superconducting magnet
scintillator barrel
target
collimator
sweeping magnet
detector for x,y,E
TR1TR2
TP-MUSIC
Sci1
Sci2
to beam dump
ALADiN
Hypernuclear production at 20 A GeV. Carbon or diamond target, 12g/cm2.
Hypernuclear separator (Phase 3)Hypernuclear separator (Phase 3)Hypernuclear production at 20 A GeV at the FAIR Hypernuclear production at 20 A GeV at the FAIR facilityfacility
Hypernuclei separated by a superconducting magnetHypernuclei separated by a superconducting magnet
1m
superconducting magnet
scintillator barrel
target
collimator
sweeping magnet
detector for x,y,E
TR1TR2
TP-MUSIC
Sci1
Sci2
to beam dump
ALADiN
4m long superconducting magnet. Separation of hypernuclei with the collimator.
Hypernuclear separator (Phase 3)Hypernuclear separator (Phase 3)Hypernuclear production at 20 A GeV at the FAIR Hypernuclear production at 20 A GeV at the FAIR facilityfacility
Hypernuclei separated by a superconducting magnetHypernuclei separated by a superconducting magnet
1m
superconducting magnet
scintillator barrel
target
collimator
sweeping magnet
detector for x,y,E
TR1TR2
TP-MUSIC
Sci1
Sci2
to beam dump
ALADiN
Removing light hadrons from the hypernuclear decay before the sweeping magnet.
Hypernuclear separator (Phase 3)Hypernuclear separator (Phase 3)Hypernuclear production at 20 A GeV at the FAIR Hypernuclear production at 20 A GeV at the FAIR facilityfacility
Hypernuclei separated by a superconducting magnetHypernuclei separated by a superconducting magnet
1m
superconducting magnet
scintillator barrel
target
collimator
sweeping magnet
detector for x,y,E
TR1TR2
TP-MUSIC
Sci1
Sci2
to beam dump
ALADiN
Hypernuclear events reconstruction tagged by mesonic and non-mesonic weak decay
Hypernuclear separator (Phase 3)Hypernuclear separator (Phase 3)Hypernuclear production at 20 A GeV at the FAIR Hypernuclear production at 20 A GeV at the FAIR facilityfacility
Hypernuclei separated by a superconducting magnetHypernuclei separated by a superconducting magnet
1m
superconducting magnet
scintillator barrel
target
collimator
sweeping magnet
detector for x,y,E
TR1TR2
TP-MUSIC
Sci1
Sci2
to beam dump
ALADiN
Precession of the spin distribution of hypernuclei. Precession angle :
• 225 degrees with free- magnetic moment• 205 degrees with 8.8% reduction due to the kaon exchanging current
Hypernuclear separator (Phase 3)Hypernuclear separator (Phase 3)Hypernuclear production at 20 A GeV at the FAIR Hypernuclear production at 20 A GeV at the FAIR facilityfacility
Hypernuclei separated by a superconducting magnetHypernuclei separated by a superconducting magnet
1m
superconducting magnet
scintillator barrel
target
collimator
sweeping magnet
detector for x,y,E
TR1TR2
TP-MUSIC
Sci1
Sci2
to beam dump
ALADiN
Precession of the spin distribution of hypernuclei. Precession angle :
• 225 degrees with free- magnetic moment• 205 degrees with 8.8% reduction due to the kaon exchanging current
Asymmetric pionic hypernuclear decayAlmost 4 sr solid angle