Opportunities for NuSTAR and Accelerator R&D

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r Opportunities for NuSTAR and Accelerator R&D

Norbert Pietralla

Technical University Darmstadt (TUD)

(Institute for Nuclear Physics)

Helmholtz International Center for FAIR

March 6, 2008 Norbert Pietralla 2

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r What is NuSTAR ?

Basic research in

Nuclear STructureNuclear Astrophysics

Nuclear Reactionswith beams of short-lived

nucleiat energies 0 – 1.5 GeV/u @

FAIRInternational collaboration (established in 2003)

chair: W.Gelletly, Univ. of Surrey, UKmembers: > 700 nuclear scientists

> 120 institutions > 25 countriespurpose: superstructure of 9 experimental collaborations at

FAIR including nuclear theory

International collaboration for physics with radioactive ion beams at FAIR

HIC for FAIR aims at an exploitation of the hightech opportunities at the FAIR accelerator complex. The HIC will guarantee a dominant role in selected

NuSTAR experiments and theory for Hessian universities, its students, and society.

March 6, 2008 Norbert Pietralla 3

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r Motivation for NuSTAR

March 6, 2008 Norbert Pietralla 4

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r Motivation for NuSTAR

What are the limits of nuclear existence ?

How does the nuclear force depend on a variation of the proton-to-neutron ratio ?

How do collective nuclear phenomena emerge from nucleons and nuclear force ?

How are complex nuclei formed from the underlying constituents and QCD ?

What nuclei are relevant for cosmic processes and what are their properties ?

March 6, 2008 Norbert Pietralla 5

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r HIC for FAIR project areas

Monte Carlo methods Coupled partial-differential equations QCD-phenomenology Detector design, Optimization and R&D Pattern recognition and Trigger concepts Large volume data analysis Accelerator optimization and R&D

HIC for FAIR concentrates on strategic NuSTAR activities

that complement the expertise of HIC‘s partner institutions.

March 6, 2008 Norbert Pietralla 6

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r HIC for FAIR opportunities for NuSTAR

HIC for FAIR provides access to NuSTAR experiments, theory, and technology for academic groups and students at Hessian universities

Low-Energy Branch:

- HISPEC/DESPEC (AGATA)

High-Energy Branch

- R3B

Ring Branch

- ILIMA - EXL - ELISe

Super-FRS

Accelerators (3 examples and following presentation of selected work packages)

March 6, 2008 Norbert Pietralla 7

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p-bar target

p-linac

Super- FRS

SIS100SIS300

HESR

CR

RESR

The FAIR Accelerator ComplexSIS 100

NESR

HESR Antiproton Prod. Target

SIS18

CR

GSI Today

RESR

p-linac SIS 300

UNILAC

FAIR

FAIR Accelerator Physics

Synchrotron RF cavities

Physics program requires a high-intensity proton beam

FAIR requires a reliable injector chain

Superconducting CH-cavity

SC LINAC cavities

March 6, 2008 Norbert Pietralla 8

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r HIC for FAIR opportunities for Nuclear Masses

Involve HIC for FAIR project areas Detector Design Accelerator Optimization

Will be measured withNuSTAR-ILIMA @ FAIR

March 6, 2008 Norbert Pietralla 9

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r HIC for FAIR opportunities for Supernova Simulation

Expand from 1-D model to 2-D, 3-D

Nuclear Equation of State Neutrino transport in matter Nuclear masses and reaction

rates far off stability

Current status:A spherical supernova does not explode !

Remnants of SN1054

March 6, 2008 Norbert Pietralla 10

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r Supernova Simulation

Involve HIC for FAIR project areas Monte Carlo Simulations (dynamics of SN) Coupled partial differential equations (nucleosynthesis networks) QCD-phenomenology (extrapolate masses, Q-values, reaction cross sections)

Courtesy: Hans-Thomas Janka

HIC for FAIR challenge:Supernova simulation consistent with observedr-process abundance

March 6, 2008 Norbert Pietralla 11

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r Pattern Recognition: HISPEC/DESPEC

AGATA-prototype 2007

March 6, 2008 Norbert Pietralla 12

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r Pattern Recognition: HISPEC/DESPEC

AGATA for optimum Doppler-correction and efficiency

HIC for FAIR challenge:Gamma-tracking algorithms for HISPEC

Gamma-imaging as a potential commercial spin-off.

Involve HIC for FAIR project areas Large volume data analysis Pattern recognition