Antiproton-nucleus interaction
نویسندگان
چکیده
منابع مشابه
Subthreshold antiproton production in nucleus-nucleus collisions.
Antiproton production from the secondary process pp~ pp is studied for nucleus-nucleus collisions at energies which are below the threshold for its production from the nucleon-nucleon reaction in the free space. In an expanding fireball model, we determine the p abundance from the fusion of pions and find that for collisions at 2. 1 GeV/nucleon the antiproton to negative pion ratio is = 5.5&10 ...
متن کاملSome Aspects of Antiproton–nucleus Physics
A brief review of antiproton–nucleus physics is presented. Some topics are related to early LEAR experiments, and others to more recent measurements or proposals. These include: exotic molecules, elastic and inelastic scattering, deep annihilation, strangeness production, neutron–antineutron oscillations, halo nu-clei, antiproton production in nuclear reactions etc.
متن کاملStrangeness production in antiproton-nucleus annihilation
Abstract. The results of the microscopic transport calculations of p̄-nucleus interactions within a GiBUU model are presented. The dominating mechanism of hyperon production is the strangeness exchange processes K̄N → Yπ and K̄N → ΞK. The calculated rapidity spectra of Ξ hyperons are significantly shifted to forward rapidities with respect to the spectra of S = −1 hyperons. We argue that this shif...
متن کاملLow-energy Antiproton Interaction with Helium
An ab initio potential for the interaction of the neutral helium atom with antiprotons and protons is calculated using the Born-Oppenheimer approximation. Using this potential, the annihilation cross section for antiprotons in the energy range 0.01 μeV to 1 eV is calculated.
متن کاملNucleus - nucleus interaction in the perturbative QCD
Nucleus-nucleus interaction is studied in the framework of the perturbative QCD with N c → ∞ and a fixed coupling constant. The pomeron tree diagrams are summed by an effective field theory. The classical field eqations are solved by iteration procedure, which is found convergent in a restricted domain of not too high energies and atomic numbers. The found gluon distributions do not scale, have...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Annales de Physique
سال: 1989
ISSN: 0003-4169,1286-4838
DOI: 10.1051/anphys:0198900140104900