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February 9, 2011 Workshop on 'Future Prospects of Hadron Physics at J-PARC and Large Scale Computational Physics'. Status of J-PARC Shoji Nagamiya J-PARC Center Japan Atomic Energy Agency (JAEA) High Energy Accelerator Research Organization (KEK). Power Capability. Previous Estimate - PowerPoint PPT Presentation
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1
Status of J-PARC
Shoji Nagamiya
J-PARC Center
Japan Atomic Energy Agency (JAEA)High Energy Accelerator Research Organization (KEK)
February 9, 2011Workshop on 'Future Prospects of Hadron Physics at J-PARC and Large Scale Computational Physics'
2
Power Capability J-
PA
RC
Pow
er
Exp
ecta
tion
[M
W]
JFY2008 JFY2009 JFY2010 JFY2011 JFY2012 JFY2013 JFY2014
Linac Energy Recovery
Training
120 kW steady
300 kW 1 hour
PreviousEstimate
Nov. 2003PresentEstimatefor 3 GeV
PresentEstimate
for MRat 30 GeV
200 kW steady
115 kW steady
KEK PS 3 kW
Big Earthquake
145 kW
3
Indication of e appearance (non-zero 13)
3
3
Expected BG
1.5±0.3evts
6 e candidates found!
(m232>0) (m23
2<0)
Central value
90%CL range
Prob. of 6 are all BG: 0.7% (2.5 equiv)
Allowed region
Chooz 90% upper bound
4
Measurement of disappearance(m23
2, sin22)
(GeV)
Consistent with MINOS/SK results
Reconstructed energy
Clear disappearance and oscillation pattern observed!!
Num
ber
of
Eve
nts
Rat
io
m2 (eV2) sin2(2)
Analysis A 2.1 ~ 3.1 x 10-3 > 0.85Analysis B 2.1 ~ 3.2 x 10-3 > 0.84
90% C.L. allowed region sin22
m2
(eV
2)
Best-fit (m2, sin22) Ana. A (2.6x10-3eV2 , 0.99) Ana. B (2.6x10-3eV2 , 0.98)
(Analysis A)
(Analysis B)
Analysis A
Analysis B
Single ring events•104 events expected w/o osc• 31 events detected
5
Physics Motivation J-PARC E19
positive evidences at low energy (LEPS, etc.) very narrow width ~ 1 MeV. Why? negative results at high energy
T. Nakano et al.,PRC79 (2009) 025210
uーs u
d
d Hadronic “direct reaction”- + p K- + X Previous (-,K-) missing mass spectrum shows a hint of 2.6
d K+ K- p n
12±2 nb
p(-,K-)
E19 (Naruki et al.)E19 (Naruki et al.)
Search for Pentaquark Search for Pentaquark + + in in ––ppKK––X reactionX reaction
K++n Experiment to producedirectly ++ must be done.
Peak???
6
LINAC-1
Outside of LINAC building is heavily damaged.
We are getting water from an outside fire-hydrant, as original cooling water system has not yet been fixed.
Immediately after the Earthquake
7
LINAC-2
Placing a temporal bridge for carrying in materials for repair.
Many pipes for supplying cooling
water were damaged.
8
Realigned accelerator cavities of DTL and SDTL were tested for water-tightness.
・ The floor level sagged 4 cm downward in the tunnel. Because accelerator cavities should be aligned within ±1 mm to each other along the beam line for the operation, they have been leveled and realigned where necessary. ・ Restoration work on the cooling water system and power supply is going smoothly.
LINAC-3
9
3 GeV Synchrotron (RCS)
The bent stage was repaired. Power has been supplied to the RCS building.
Immediately after the Earthquake
Tilted condenser transformers were straightened.
Immediately after the Earthquake
newold
10
J-PARC Facility
Nuclear Transmutation
(Phase 2)
Joint Project between KEK and JAEA 2
Materials and Life ScienceExperimental Facility
Hadron Beam Facility
500m
Linac(330m)
Neutrino to Kamiokande
3 GeV Synchrotron(25 Hz, 1MW) 50 GeV Synchrotron
(0.75 MW)
J-PARC = Japan Proton Accelerator Research Complex
11
A tilted He tank was removed to repair the foundation.
The road was re-opened after filling depressions with pebbles. Inspection by the fire department
Materials & Life Science Experimental Facility (MLF)-1
Immediately after the Earthquake
12
Reassembling work of shielding blocks for neutron beams in the 2nd experimental hall (above). Inspection of the inside of the muon beam facility after removing shielding blocks (right). This area does not have any serious damage.
Materials & Life Science Experimental Facility (MLF)-2
Immediately after the Earthquake
13
Materials & Life Science Experimental Facility (MLF)-3
14
Realignment work of electromagnets (above) and superconducting magnets (below) is progressing smoothly. We also try to improve cooling power.Repairing roads and plumbing
have been completed.
Neutrino Experimental FacilityImmediately after the Earthquake
AC device tilted toward a depression of a road. Many pipes were damaged
15
Immediately after the
Earthquake
Repairing roads and
plumbing have been
completed.
Hadron Experimental Facility
16
4 5 6 7 8 9 10 11
12 1 2 3
Infrastructure
Linac
RCS
MR
MLF
HD
NU
Emergency Recovery Full Recovery Work
MLF User Program
InvestigationRecovery
Test with electricity
New Hg TargetShielding recovery BL Components
MLF User Operation
NU Experiment
Cooling Water
Alignment
Recovery
Extended Building
2011 2012
NU or HD Operation
Beam TestUser Operation
Start
3GeV synchrotron
50GeV synchrotron
Materials&LifeExperimental Facility
Hadron Experimental Facility
Neutrino Experimental Facility
Investigation
Investigation
Investigation
Investigation
Investigation
Recovery
Recovery
Recovery
Beam Commissioning
Test with electricity
Test with electricity
Beam Injection
Beam Injection
Beam Injection
HD Experiment
J-PARC Recovery Schedule ( @2011.5.20 ) 2011 2012
17
Summary before December 9th of 2011
Main Buildings were almost OK– Many underpins for major buildings.
However, many utility buildings, roads, and added buildings had significant damage.– We used approximately 50 Oku Yen from a regular
operational budget. – In addition, we received 14.2 Oku Yen (JAEA) for
immediate use and 73.4 Oku Yen (KEK) for 3 yrs. When to recover ?
– Aiming at recovering by the end of this year. – Obtained already a permission of 55 MW from Nov.
Operation of Next Fiscal Year– Aiming towards 9 cycle (200 day) operations for users.
18
December 9, 2011
09:30 Key was on.
14:00 Beam went throughout the Linac at 3 MeV with RFQ acceleration.
Nov. of 2006. The first beamwas on at the Linac.
19
Final vacuum leakage test Linac Alignment
302 kW @ 3NBT
DCCT
Particles/pulse
Time (ms)
Injection Extraction
Acceleration
Linac and 3 GeV
HorizontalVertical
Linac: Beam was ben in the middle This will be straighten up in the future.
3 GeV: Although magnets are declined inward, they will not be corrected before the summer of 2013.
20
Old and New Targets
Neutron on the Target
Unfortunately, the bubbler is no working properly, so that the neutron beam line can accept 100 kW at the time of first beams.
Before Earthquake
After Earthquake
21
The first shot on target after the earthquakeAdjustment on beam positon:12/22
First shot reached on target because of the effort on realignment of 108 magnets in 3NBT.
The first shot
After adjustment
22
Neutrino Events
On-site Detectorevents
First Protonon Target
23
First Beams to Hadron (1/28)
調整後、ビームは軸の中心を通った。
24
The First Beam to K1.8
ビームの信号をみる実験グループメンバー
Beam=BH1⊗ BH2
Beam⊗ TOF
Beam⊗ LC⊗ACbar⊗ TOF
Veto=TOF⊗AC
オンラインモニタを見る実験者たち
25
Year 2012
Year 2012 Plans until March
Jan.
Feb.
Mar.
26
JFY2012 Budget
JAEA Oku Yen
Operational 83.50 8 cycles. JAEA direct = 5.29
Gov. Direct = 78.21 (+3.6 for cost
increase of electricity)
Equipment 14.90 14.5 for JAEA: 400 MeV Linac
0.4 for Gov. Direct.: 16 Oku total
out of 3-year funding.
Improvement 16.92 Linac + 3 GeV (final year of total 47.9)
KEK Operational 66.18 6 cycles. The same as the last year.
CROSSOperational 7.02 Almost the same as the last year.
TOTAL 188.52
27
Construction Budget
2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 20122000JAEA KEKJAEA KEKJAEA KEK JAEA KEKJAEA KEKJAEA KEKJAEA KEKJAEA KEKJAEA KEKJAEA KEKJAEA KEKJAEA KEKJAEA 0
20
40
60
80
100
120
140
160
180
200
ConstructionStarted
Completionof Phase-1
Oku
Yen
(億
円)
Fiscal Year ( 予算年度 )
KEK ConstructionKEK After ConstructionKEK ConstructionKEK After Construction
JAEA ConstructionJAEA After ConstructionJAEA Government Direct JAEA Government Supplemental
JAEA ConstructionJAEA After ConstructionJAEA Government Direct JAEA Government Supplemental
EarthquakeRecovery
28
Operational Budget
2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 20172005JAEA KEKJAEA KEKJAEA KEK JAEA KEKJAEA KEKJAEA KEKJAEA KEKJAEA KEKJAEA KEKJAEA KEKJAEA KEKJAEA KEKJAEA 0
20
40
60
80
100
120
140
160
180
200
Completionof Phase-1
Full Power(9 cycles; 200 days)5 cycles
6 cycles
JAEA GoalJAEA GoalKEK GoalKEK Goal8 cycles
6 cycles
JAEA OperationalJAEA Government DirectKEK Operational
JAEA OperationalJAEA Government DirectKEK Operational
Oku
Yen
(億
円)
Fiscal Year ( 予算年度 )
70% of full request
29
99.5 % Extraction for Slow Beams
AdjustingDynamic Bump
Extraction Efficiency98.6%
Start of Extraction
End of Extraction
Stored Beam in MR
Time Dependence of Beam Loss
Stored Beam in MR
Time Dependence of Beam Loss
Start of Extraction
End of Extraction
Extraction Efficiency99.5 %
30
KL
K1.8
K1.8BR
T1 target
30GeV proton beam
SKS We have observedcharged and neutral kaonsin the secondary beam lines(K1.8BR, K1.8 and KL) ofHadron Experimental Hall.
π
K+1.8GeV/c
K0L→π+π-π0
31
E03 K. Tanida SNU Measurement of X rays from - Atom Stage 2 K1.8 preparation
E05 T. Nagae Kyoto USpectroscopic Study of -Hypernucleus, 12
Be, via the 12C(K-, K+) Reaction
Stage 2 Day1 1 K1.8 preparation
E06 J. Imazato KEKMeasurement of T-violating Transverse Muon Polarization in K+ ->π0µ+ Decays
Stage 1 K1.1BR
E07K. Imai, K. Nakazawa, H. Tamura
JAEA, Gifu U,Tohoku U
Systematic Study of Double Strangeness System with an Emulsion-counter Hybrid Method
Stage 2 K1.8 preparation
E08 A. Krutenkova ITEP Pion double charge exchange on oxygen at J-PARC Stage 1 K1.8
E10A. Sakaguchi, T. Fukuda
Osaka U, Osaka EC U
Production of Nuetron-Rich Λ-Hypernuclei with the Double Charge-Exchange Reactions
Stage 2 K1.8 preparation
E11 T. Kobayashi KEKTokai-to-Kamioka (T2K) Long Baseline Neutrino Oscillation Experimental Proposal
Stage 2 neutrino data taking
E13 T. Tamura Tohoku U Gamma-ray spectroscopy of light hypernuclei Stage 2 Day1 2 K1.8 preparation
E14 T. Yamanaka Osaka U Proposal for KL -> p0 -bar Experiment at J-PARC Stage 2 KLbeamline tuning
E15M. Iwasaki, T. Nagae
RIKEN, Kyoto U
A Search for deeply-bound kaonic nuclear states by in-flight 3He(K-, n) reaction
Stage 2 Day1 K1.8BR preparation
E16 S. Yokkaichi RIKENElectron pair spectrometer at the J-PARC 50-GeV PS to explore the chiral symmetry in QCD
Stage 1 high p
E17R. Hayano, H. Outa
U Tokyo, RIKEN
Precision spectroscopy of Kaonic 3He 3d->2p X-rays Stage 2 Day1 K1.8BRbeamline tuning
E18H. Bhang, H. Outa, H. Park
SNU, RIKEN, KRISS
Coincidence Measurement of the Weak Decay of 12C
and the three-body weak interaction processStage 2 K1.8 preparation
E19 M. Naruki KEKHigh-resolution Search for + Pentaquark in -p -> K-X Reactions
Stage 2 Day1 K1.8 data taking
E21 Y. Kuno Osaka UAn Experimental Search for Lepton Flavor Violating µ−
−e− Conversion at Sensitivity of 10−16 with a Slow-Extracted Bunched Proton Beam
Stage 1 new beamline
32
E22S. Ajimura, A. Sakaguchi
Osaka UExclusive Study on the Lambda-N Weak Interaction in A=4 Lambda-Hypernuclei (Revised from Initial P10)
Stage 1 K1.8
E26 K. Ozawa KEKSearch for ω-meson nuclear bound states in the π-+AZ -> n+(A-1)(Z-1) ω reaction, and for ω mass modification in the in-medium ω->π0γ decay.
Stage 1 K1.8
E27 T. Nagae Kyoto USearch for a nuclear Kbar bound state K-pp in the d(π+, K+) reaction
Stage 2 K1.8 preparation
P28 H. Fujioka Kyoto UStudy of isospin dependence of kaon-nucleus interaction by in-flight 3He(K- ,n/p) reactions
approved as apart of
E15 K1.8BR
E29 H. Ohnishi RKENSearch for φ-meson nuclear bound states in the pbar + Z -> φ + φ(Z-1) reaction
Stage 1 K1.1
E31 H. NoumiRCNP, Osaka U
Spectroscopic study of hyperon resonances below KN threshold via the (K- ,n) reaction on Deuteron
Stage 1 K1.8BR
P34N. Saito, M. Iwasaki
KEK, RIKEN
A New Measurement of the Muon Anomalous Magnetic Moment g-2 and Electric Dipole Moment at J-PARC
Stage 1 MLF
P36 S. Shimizu Osaka UMeasurement of (K+ -> e+)/(K+ -> +) and Search for heavy sterile neutrinos using the TREK detector system
Stage 1 K1.1BR
E40 K. Miwa Tohoku U Measurement of the cross sections of Σp scatterings Stage 1 K1.8
T25 S. Mihara KEKExtinction Measurement of J-PARC Proton Beam at K1.8BR
Test experiment
K1.1BR data taking
T32 A. Rubba ETH, Zurich
Towards a Long Baseline Neutrino and Nucleon Decay Experiment with a next-generation 100 kton Liquid Argon TPC detector at Okinoshima and an intensity upgraded J-PARC Neutrino beam
Test experiment
K1.1BR data taking
P35 T. Kajita ICRR, TokyoA test experiment to measure sub-GeV flux in the on-axis direction at the J-PARC neutrino beam
to be decided by E11 & Lab
neutrino
T37 K. Inami Nagoya U Test of TOP counter for B-factory upgradeTest
experiment K1.1BR withdrawn
T38 T. Nanjo Kyoto UProposal for Measuring Hadron Response at K1.1BR for KOTO Experiment
Test experiment
K1.1BR completed
P39 K. Sakashita KEKA study of water Cherenkov detector for counting the number of neutrino at Near detector hall of J-PARC neutrino beam-line
to be decided by E11 & Lab
neutrino
T43 K. Aoki RIKENTest of Hadron Blind Detector and GEM Tracker for the J-PARC E16 Experiment
Test experiment
K1.1BR
33
E22S. Ajimura, A. Sakaguchi
Osaka UExclusive Study on the Lambda-N Weak Interaction in A=4 Lambda-Hypernuclei (Revised from Initial P10)
Stage 1 K1.8
E26 K. Ozawa KEKSearch for ω-meson nuclear bound states in the π-+AZ -> n+(A-1)(Z-1) ω reaction, and for ω mass modification in the in-medium ω->π0γ decay.
Stage 1 K1.8
E27 T. Nagae Kyoto USearch for a nuclear Kbar bound state K-pp in the d(π+, K+) reaction
Stage 2 K1.8 preparation
P28 H. Fujioka Kyoto UStudy of isospin dependence of kaon-nucleus interaction by in-flight 3He(K- ,n/p) reactions
approved as apart of
E15 K1.8BR
E29 H. Ohnishi RKENSearch for φ-meson nuclear bound states in the pbar + Z -> φ + φ(Z-1) reaction
Stage 1 K1.1
E31 H. NoumiRCNP, Osaka U
Spectroscopic study of hyperon resonances below KN threshold via the (K- ,n) reaction on Deuteron
Stage 1 K1.8BR
P34N. Saito, M. Iwasaki
KEK, RIKEN
A New Measurement of the Muon Anomalous Magnetic Moment g-2 and Electric Dipole Moment at J-PARC
Stage 1 MLF
P36 S. Shimizu Osaka UMeasurement of (K+ -> e+)/(K+ -> +) and Search for heavy sterile neutrinos using the TREK detector system
Stage 1 K1.1BR
E40 K. Miwa Tohoku U Measurement of the cross sections of Σp scatterings Stage 1 K1.8
T25 S. Mihara KEKExtinction Measurement of J-PARC Proton Beam at K1.8BR
Test experiment
K1.1BR data taking
T32 A. Rubba ETH, Zurich
Towards a Long Baseline Neutrino and Nucleon Decay Experiment with a next-generation 100 kton Liquid Argon TPC detector at Okinoshima and an intensity upgraded J-PARC Neutrino beam
Test experiment
K1.1BR data taking
P35 T. Kajita ICRR, TokyoA test experiment to measure sub-GeV flux in the on-axis direction at the J-PARC neutrino beam
to be decided by E11 & Lab
neutrino
T37 K. Inami Nagoya U Test of TOP counter for B-factory upgradeTest
experiment K1.1BR withdrawn
T38 T. Nanjo Kyoto UProposal for Measuring Hadron Response at K1.1BR for KOTO Experiment
Test experiment
K1.1BR completed
P39 K. Sakashita KEKA study of water Cherenkov detector for counting the number of neutrino at Near detector hall of J-PARC neutrino beam-line
to be decided by E11 & Lab
neutrino
T43 K. Aoki RIKENTest of Hadron Blind Detector and GEM Tracker for the J-PARC E16 Experiment
Test experiment
K1.1BR
34
Hypernucleus
Shallow Potential
Deep potential + Heavier mass ?
spd
sp
ΛN
30 MeV 50 MeV s1/2
p1/2 p3/2
Vl・s
r
m
r
m
rnucleus rnucleus
Small (l ・ s) Force)
Λ
Analyze Hypernuclear Spectroscoy with
m (r), Vl・s(r) as two parameters !
(l ・ s)surface > (l ・ s)interior Spindown
particle
Difference?
Spindown
particle
Difference?
35
pp
nunbound
exotic nucleusbound exotic hypernucleus
6H5H glue-like
role of-hyperonn
n
n
nn n
n
insight into halo nuclear structure through hypernuclei
NNNN
NN
NN
NN
77MeV
290MeV
smaller M
NN
NN NN
contribution of component and many body effect
larger mixing
n-rich hypernucleus is a doorway to n-star
S=0S=0S=-1S=-1
ordinary nucleiordinary nuclei -hypernuclei-hypernuclei
J. Schaffner-Bielich, Nucl. Phys. A804 (2008) 309
36
Necessity for Hadron Hall extension
J-PARC
primary lines
secondary lines
BNL-AGS
Too small area ⇔ KEK-PS x2.4, BNL-AGS x4.1
Only 4 beam lines ⇔ KEK-PS ~7 lines, BNL-AGS ~15 lines
-> Ineffective operation (“output per operation cost” is bad.)
Long waiting queue of approved experiments (At K1.8/K1.8BR lines, 6960 hours = more than 6 years ) -> Discourage users in the world. Predominance will be lost.
Extremely urgent !
First priority in nuclear physics community in Japan
RIKEN is considering its funding!
37
Thanks
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