Photodisintegration of the Deuteron at High Energies
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概要
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The exchange current effects in the photodisintegration of the deuteron at high energies are discussed. Special consideration is given to (i) correlation of the exchange effects with the large direct E1 transition, whose behavior has been the object of the recent several investigations, (ii) consequences of gauge invariance for the electric transitions due to exchange effects, (iii) evaluation of the magnetic transition caused by the (33)-resonance in terms of the results of the Chew-Low theory. It is shown that exchange effects affect the electric dipole transition operator in a way consistent with the Siegert theorem. The resulting change in the electric dipole cross section is evaluated in the adiabatic approximation as well as in neglect of higher order retardation effect. It is appreciable only at photon energies above the pion threshold. Some characteristics of the (33)-resonance effect are revealed, although nucleonrecoil effects and uncertainty of nuclear force make it difficult to give any quantitative estimation. Finally the results obtained here are compared with experiment.
- 理論物理学刊行会の論文
- 1960-08-25
著者
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Akiba Tomoya
Department Of Physics Faculty Of Science Tohoku University
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AKIBA Tomoya
Department of Information Science, Faculty of Science Hirosaki University
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