Using the weak field expansion, we have calculated the groundstate energy of the hydrogen atom in a magnetic field for values of the field up to about 10" G. The perturbative expansion has been summed by an order-dependent mapping method. Results are compared with previous calculations. This method
Investigation of nuclear effects in bremsstrahlung: H. L. Acker and M. E. Rose, Department of Physics, University of Virginia, Charlottesville, Virginia
- Publisher
- Elsevier Science
- Year
- 1967
- Tongue
- English
- Weight
- 68 KB
- Volume
- 44
- Category
- Article
- ISSN
- 0003-4916
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โฆ Synopsis
A generalization of the usual inelastic electron scattering, proposed by Hubbard and Rose, is discussed where in addition to the scattered electron the photon is detected in coincidence. This photon is either due to bremlstrahlung or to electroexcitation and subsequent -r-decay of a nuclear level. The interference between both processes is studied in detail. Numerical results are given for the giant resonance region of "0 and two levels in r2Cl (4.43 and 15.11 MeV). The coincidence experiment seems to be a very useful tool in de(ermining spins and parities of nuclear levels. In this spin analysis no model concerned with the dependence of the nuclear form factors on momentum transfer enters, in contrast to the usual inelastic electron scattering. The interference phenomena between electron bremsstrahlung and nuclear radiation turn out to be quite noticeable in the differential cross section for coincidence experiments. The interference terms are less important in the cross section integrated over photon angles, which corresponds to the usual inelastic electron scattering experiments.
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