منابع مشابه
Proton and neutron knockout from 36 Ca
The cross sections for single-nucleon knockout from 36Ca on a 9Be target at 70 MeV/nucleon were measured to be σexp(−p) = 51.1± 2.6 mb for proton knockout and σexp(−n) = 5.03± 0.46 mb for neutron knockout. The spectroscopic factors and orbital angular momenta of the neutrons and protons removed from 36Ca, leading to bound A = 35 residues, were deduced by comparison of the experimental cross sec...
متن کاملPhoton-Proton and Photon-Photon Scattering from Nucleon-Nucleon Forward Amplitudes
We show that the data on γp and γγ interactions can be derived from the pp and p̄p forward scattering amplitudes using vector meson dominance and the additive quark model. The nucleon–nucleon data are parameterized using a model where high energy cross sections rise with energy as a consequence of the increasing numbers of soft partons populating the colliding particles. We present detailed desc...
متن کاملNew direct reaction: two-proton knockout from neutron-rich nuclei.
The reaction 9Be(28Mg,26Ne+gamma)X has been studied at 82 MeV/nucleon together with two similar cases, 30Mg and 34Si. Strong evidence that the reactions are direct is offered by the parallel-momentum distributions of the reaction residues and by the inclusive cross sections. The pattern of the partial cross sections for 28Mg suggests the presence of correlations. A preliminary theoretical discu...
متن کاملDirect proton decay of the isoscalar giant dipole resonance in 208Pb
a Department of Physics, University of Notre Dame, Notre Dame, IN 46556, USA b Research Center for Nuclear Physics, Osaka University, Mihogaoka 10-1, Ibaraki, Osaka 567-0047, Japan c Department of Physics, Kyoto University, Kyoto 606-8502, Japan d National Superconducting Cyclotron Laboratory and Department of Physics and Astronomy, Michigan State University, East Lansing, MI 48824, USA e Depar...
متن کاملProton and Photon Structure 1
The increasing precision of the measurements on the proton structure and an improved treatment of the correlated systematic experimental errors constitute a major step forward in our understanding of the flavour decomposition of the proton and the momentum distributions of the various flavours. Together with theoretical progress on the next-to-nextto-leading order QCD corrections to deep inelas...
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ژورنال
عنوان ژورنال: Physics Letters B
سال: 1995
ISSN: 0370-2693
DOI: 10.1016/0370-2693(95)00793-k