Bremsstrahlung from Proton Bombardment of Nuclei
نویسندگان
چکیده
منابع مشابه
The influence of negative-energy states on proton-proton bremsstrahlung
We investigate the effect of negative-energy states on proton–proton bremsstrahlung using a manifestly covariant amplitude based on a T-matrix constructed in a spectator model. We show that there is a large cancellation among the zeroth-order, singleand double-scattering diagrams involving negative-energy nucleonic currents. We thus conclude that it is essential to include all these diagrams wh...
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Photon energy spectra up to the kinematic limit have been measured in 190 MeV proton reactions with light and heavy nuclei to investigate the influence of the multiple-scattering process on the photon production. Relative to the predictions of models based on a quasifree production mechanism, a strong suppression of bremsstrahlung is observed in the low-energy region of the photon spectrum. We ...
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Carrier lifetime reduction resulting from proton bombardment of InGaAs/InP-based semiconductor saturable absorbers was studied experimentally, using a standard degenerate, cross-polarized pump-probe technique. Proton bombardment reduced carrier lifetimes by as much as a factor of 40 at low optical excitation densities. For high fluences, significant induced absorption was observed. The recovery...
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One-loop radiative corrections to the leptonic tensor in high energy bremsstrahlung on heavy nuclei are calculated. Virtual and real photon radiation is taken into account. Double bremsstrahlung is simulated by means of Monte Carlo. Numerical results are presented for the case of muon bremsstrahlung in conditions of the COMPASS experiment at CERN.
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A review is given of attempts to describe nuclear properties in terms of neutron–proton pairs that are subsequently replaced by bosons. Some of the standard approaches with low-spin pairs are recalled but the emphasis is on a recently proposed framework with pairs of neutrons and protons with aligned angular momentum. The analysis is carried out for general j and applied to N = Z nuclei in the ...
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ژورنال
عنوان ژورنال: Physical Review
سال: 1963
ISSN: 0031-899X
DOI: 10.1103/physrev.130.1505