Physics – Nuclear Physics – Nuclear Theory
Scientific paper
1996-10-18
Phys.Rev.C55:419-423,1997
Physics
Nuclear Physics
Nuclear Theory
11 pages, RevTeX, to appear in Physical Review C
Scientific paper
10.1103/PhysRevC.55.419
We reconsider the Dirac-Foldy contribution $\mu^2/m$ to the neutron electric polarizability. Using a Dirac equation approach to neutron-nucleus scattering, we review the definitions of Compton continuum ($\bar{\alpha}$), classical static ($\alpha^n_E$), and Schr\"{o}dinger ($\alpha_{Sch}$) polarizabilities and discuss in some detail their relationship. The latter $\alpha_{Sch}$ is the value of the neutron electric polarizability as obtained from an analysis using the Schr\"{o}dinger equation. We find in particular $\alpha_{Sch} = \bar{\alpha} - \mu^2/m$ , where $\mu$ is the magnitude of the magnetic moment of a neutron of mass $m$. However, we argue that the static polarizability $\alpha^n_E$ is correctly defined in the rest frame of the particle, leading to the conclusion that twice the Dirac-Foldy contribution should be added to $\alpha_{Sch}$ to obtain the static polarizability $\alpha^n_E$.
Bawin Michel
Coon Sidney A.
No associations
LandOfFree
Dirac-Foldy term and the electromagnetic polarizability of the neutron does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Dirac-Foldy term and the electromagnetic polarizability of the neutron, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dirac-Foldy term and the electromagnetic polarizability of the neutron will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-206655