PHY3004: Nuclear and Particle Physics Marcel Merk, Jaccode ...
Status of facility design Activities of the IPNS Nuclear/Particle Physics group Basic information...
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Transcript of Status of facility design Activities of the IPNS Nuclear/Particle Physics group Basic information...
Status of facility design Activities of the IPNS Nuclear/Particle Physics group Basic information for the working sessions
Activities of Nuclear and Particle Physics Group
J. ImazatoFacility construction team
IPNS, KEK
Accelerator Complex
Physics at 50-GeV PS- Current guide for facility design -
Nuclear & Particle physics with K, π, , , pbar, and other secondary beams
– Hypernuclear Spectroscopy– Hyperon-nucleon scattering– Mesons in nuclear matter– Hadron spectroscopy– Kaon rare decays to measure CP parameters– Flavor mixing and other topics beyond the Standard Model– Neutrino oscillation experiment using Super-Kamiokande
Nuclear physics with primary beams – Physics with polarized proton beams– High-density matter with heavy-ion beams
Experimental Hall (Phase 2)
10 4
10 5
10 6
10 7
10 8
KEK 12-GeV PS BNL AGS(23 GeV) 50-GeV PS
Comparison of Beam Intensity
K-1.8
K-1.8
K-1.8
K+0.8
K+0.8
K+0.8
K-0.8
K-0.8
K-1.1
10 4
10 5
10 6
10 7
10 8
KEK 12-GeV PS BNL AGS(23 GeV) 50-GeV PS
Comparison of Beam Intensity
K-1.8
K-1.8
K-1.8
K+0.8
K+0.8
K+0.8
K-0.8
K-0.8
K-1.1•K-(1.8 GeV/c)
(K-,K+), S=-2
•K+(0.8 GeV/c)
K+ rare decay
•K-(1.1 GeV/c)
(K-,π-), S=-1
Aim for secondary beam intensity
Phase 1 and Phase 2
Neutrino to SK
Nuclear/Particle Facility
Experimental Hall (Phase 1)
Construction time schedule (Phase 1)
Construction team
-- Hadron hall/facility group
-- Hadron beam line group
-- Target/monitor group
-- Neutrino facility group
-- Engineering/technology group
-- Cryogenics group
-- Online/electronics group
-- Common support group
About 80 physicists from IPNS and other KEK divisions are involved in the construction team.
Nuclear/particle ------ physics group
Activities of subgroups Hadron hall/facility group
– Basic design of the experiment hall– Basic design of utilities– Radiation safety issues
Hadron bam line group– Primary line design and construction– Secondary line construction– Development of beamline elements
Target/monitor group– Development of a K- hall and targets– Development of beam monitors
Neutrino facility group– Construction of a SC proton beam line– Design of a target station– Construction of a forward detector
R&D items
High Intensity beam– Water-cooling rotating target– Water-cooling beam dump– Primary beam monitor
High Radiation environment– Radiation-hard magnet and other elements– Remote-handling system (method of maintenance)– Effective radiation shielding– Control of air flow
Restriction from high activation and rigid shielding
It will be not easy to change beam line layout in the future .– needs careful design of beam lines– needs careful selection of an experimental program
Future projects have to secure a beam extraction port from the beginning.– High intensity muon facility– pbar beam (not yet considered in detail !)
International Cooperation
Nuclear and Particle Physics Facility will be open to the world. “JHF” aims for an international research center.
Participation in the facility construction is welcome.– Beam line construction– Development of the target etc.
Contribution to detector construction is welcome.
Preparation of Detectors
No budget at all for experiments
1. We will make an effort to find budgets.
2. Contributions by user groups (domestic and international) are awaited.
3. Recycling of spectrometers currently used at the 12-GeV PS
– SKS, TOROIDAL, SPES-II, SPES-I, …..
–Experiment program coordination
The scheme during the construction phase is now under discussion.
Probably:
Director
Nuclear/Particle PhysicsFacility committee
Letter of Intent, Proposal
Selection experimentsDecision of beam line priority
Users committee
Summary
We will try our best to complete an advanced facility . The phase-1 facility should be extended to Phase-2 any time.
Good experimental proposals are awaited. We look forward to the outcome of this workshop.
International cooperation also in the construction phase is welcome.