Neutron Halos and Delayed Nuclear Fissions Induced by Antiproton
نویسندگان
چکیده
منابع مشابه
Neutron Capture and Neutron Halos
The connection between the neutron halo observed in light neutron rich nuclei and the neutron radiative capture process is outlined. We show how nuclear structure information such as spectroscopic factors and external components of the radial wave function of loosely bound states can be derived from the neutron capture cross section. The link between the direct radiative capture and the Coulomb...
متن کاملSequential fissions of heavy nuclear systems
In 129Xe+ Sn central collisions from 12 to 20 MeV/A measured with the INDRA 4 multidetector, the three-fragment exit channel occurs with a significant cross section. In this contribution, we show that these fragments arise from two successive binary splittings of a heavy composite system. Strong Coulomb proximity effects are observed in the three-fragment final state. By comparison with Coulomb...
متن کاملAntiproton polarization induced by lepton interactions
We present expressions for electromagnetic helicity amplitudes and spin observables for any elastic spin 1/2 spin 1/2 scattering to first order in QED. In particular all electromagnetic helicity amplitudes and spin observables for elastic antiproton-electron and antiproton-proton scattering via single t-channel photon exchange are presented. Spin observables are required to describe the rate of...
متن کامل5 Unexpected neutron structure effects in one neutron halos
Although the neutron (n) does not carry a total electric charge, its charge distribution represented in momentum space by the first electromagnetic form factor, F (n) 1 (q 2), leads to a spin independent electric potential. We calculate the first order electromagnetic corrections to the binding energy of a one neutron halo nucleus by evaluating the potential between the neutron and the charged ...
متن کاملNeutron halos in the Na isotopes.
The neutron and proton density distributions of the Na isotopes out to the proton and neutron drip lines are calculated in the spherical Hartree-Fock model with a wide variety of density-dependent Skyrme interactions. The results are compared to recent experimental data for the interaction cross sections and for the rms radii. We discuss the role of the deformed intruder states and the problems...
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: Progress of Theoretical Physics
سال: 1989
ISSN: 0033-068X,1347-4081
DOI: 10.1143/ptp.82.869