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Production of Polarized Antiprotons

Objective

Hadrons, the building blocks of all matter in Nature, are not fundamental but composed of quarks and gluons. Up to now we do not know HOW NATURE MAKES HADRONS one of the most important questions of contemporary structure-of-matter physics. Major breakthroughs are to be expected with new experimental facilities such as FAIR. Most studies in hadron physics at HESR/FAIR will employ beams of unpolarized antiprotons, but the most spectacular opportunities will arise for polarized antiprotons the physics case is exceptional. The flag-ship experiment, Drell-Yan production in double polarized proton-antiproton scattering, gives direct access to transversity , the terra incognita of nucleon spin structure. The provision of such beams presents enormous scientific / technological challenges and has never been achieved with intensities sufficient for the crucial experiments. State-of-the-art techniques are capable of producing intensities less than ~10^5 s-1, which cannot be efficiently accumulated. It is the aim of this project to develop an efficient method for POLARIZING ANTIPROTON BEAMS by in-situ build-up in a storage ring. The only viable method to do this effectively is through "spin-filtering" by the repeated interaction of an antiproton beam with a polarized hydrogen gas target in a cooler storage ring. This technique works with protons, but it is not clear how the polarization build-up happens in detail. Spin-filtering needs to be optimized and, in particular, it must be extended to antiprotons. Within the framework of this project, the aim is to provide polarized antiproton beams in a storage ring with at least WITH 10 ORDERS OF MAGNITUDE higher intensity than previously possible. A very experienced team of scientists and engineers is needed, and this is available within my group. We will also strongly benefit from our collaboration partners. Thus, it is a "now or never" opportunity. If successful, a new era will open with fascinating experiments.

Field of science

  • /natural sciences/physical sciences/theoretical physics/particles/gluons
  • /engineering and technology/environmental engineering/energy and fuels/fossil energy/gas
  • /natural sciences/physical sciences/theoretical physics/particles/quarks

Call for proposal

ERC-2009-AdG
See other projects for this call

Funding Scheme

ERC-AG - ERC Advanced Grant

Host institution

FORSCHUNGSZENTRUM JULICH GMBH
Address
Wilhelm Johnen Strasse
52428 Julich
Germany
Activity type
Research Organisations
EU contribution
€ 1 389 900
Principal investigator
Hans Ströher (Prof.)
Administrative Contact
Anne Bosch (Mrs.)

Beneficiaries (3)

FORSCHUNGSZENTRUM JULICH GMBH
Germany
EU contribution
€ 1 389 900
Address
Wilhelm Johnen Strasse
52428 Julich
Activity type
Research Organisations
Principal investigator
Hans Ströher (Prof.)
Administrative Contact
Anne Bosch (Mrs.)
UNIVERSITA DEGLI STUDI DI FERRARA
Italy
EU contribution
€ 924 376
Address
Via Ariosto 35
44121 Ferrara
Activity type
Higher or Secondary Education Establishments
Administrative Contact
Mauro Gambaccini (Prof.)
JOINT INSTITUTE FOR NUCLEAR RESEARCH
Russia
EU contribution
€ 134 100
Address
Joliot Curie 6
141980 Dubna
Activity type
Other
Administrative Contact
Anatoly Kulikov (Dr.)