Antiprotons for nuclear structure research
نویسندگان
چکیده
منابع مشابه
Nuclear Interactions of Antiprotons with Aluminium and Carbon
The development of high-energy accelerators is providing increasingly intense beams of several particles. In particular, the recent availability of negative pions and antiprotons at CERN has made it possible to study their interactions with complex nuclei. At present there exist three ways of investigating the interactions of particles such as antiprotons with complex nuclei. We refer to a) tra...
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The PAX project at GSI Darmstadt plans to polarize an antiproton beam by repeated interaction with a hydrogen target in a storage ring. Many of the beam particles are required to remain within the ring after interaction with the target, so small scattering angles are important. Hence we concentrate on low momentum transfer (small t), a region where electromagnetic effects dominate the hadronic ...
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New measurements with good statistics will make it possible to observe the time variation of cosmic antiprotons at 1 AU through the approaching peak of solar activity. We report a new computation of the interstellar antiproton spectrum expected from collisions between cosmic protons and the interstellar gas. This spectrum is then used as input to a steady-state drift model of solar modulation, ...
متن کاملA surprising method for polarising antiprotons
We propose a method for polarising antiprotons in a storage ring by means of a polarised positron beam moving parallel to the antiprotons. If the relative velocity is adjusted to v/c ≈ 0.001 the cross section for spin exchange is as large as 〈σPzz〉 ≈ 2 ·10 barn as shown by new QED-calculations. Two possibilities to provide a positron source with sufficient flux density are presented. A polarise...
متن کاملAn effective method for polarising antiprotons
We propose an effective method for polarising antiprotons in a storage ring by means of a parallel moving polarised electron beam. If their relative kinetic energy is adjusted to the order of 1 keV the probability for spin exchange is as large as 〈σPzz〉 ≈ 270 barn. Using a 80% polarised electron beam with a peak current of 1.2 A and an average of 32 mA a polarisation of the antiproton beam of 5...
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ژورنال
عنوان ژورنال: Hyperfine Interactions
سال: 2009
ISSN: 0304-3843,1572-9540
DOI: 10.1007/s10751-009-0079-5