منابع مشابه
Dispersion interactions from a local polarizability model
Citation Vydrov, Oleg A. and Troy Van Voorhis. "Dispersion interactions from a local polarizability model. Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. The MIT Faculty has made this article openly available. Please share how this access benefits you. Your story matters. A local ...
متن کاملDispersion relations and the nucleon polarizability.
Recent experimental results on the proton and neutron polarizabilities are examined from the point of view of backward dispersion relations. Results are found to be in reasonable agreement with the measured values. A rigorous relationship between the nucleon and pion polarizabilities is derived and shown to be in excellent agreement with several models. Research supported in part by the Nationa...
متن کاملSpin-dependent Polarizability of Nucleon with Dispersion Relation in the Skyrme Model
We calculate the spin-dependent polarizability of the nucleon in the Skyrme model. The result is compared with that of a heavy baryon chiral perturbation theory(HBChPT), and is shown to be the same as that of HBChPT up to the ∆-pole terms in the narrow width limit of the ∆ state and with the experimental physical constants. The effect of the ∆+π channel is rather small and is numerically quite ...
متن کاملGeneralized Electric Polarizability of the Proton from Skyrme Model
We calculate the electric polarizability α(q2) of the proton in virtual Compton scattering using the Skyrme model. The q2 dependence of the polarizability is comparable with the predictions obtained from the non-relativistic quark model and the linear sigma model. The chiral behaviors of our α(0) and d2α(0)/d2q2 agree with the results of the chiral perturbation theory. The discrepancy can be tr...
متن کاملElectric dipole polarizability in 208Pb: Insights from the droplet model
We study the electric dipole polarizability αD in 208Pb based on the predictions of a large and representative set of relativistic and nonrelativistic nuclear mean-field models. We adopt the droplet model as a guide to better understand the correlations between αD and other isovector observables. Insights from the droplet model suggest that the product of αD and the nuclear symmetry energy at s...
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ژورنال
عنوان ژورنال: Physical Review A
سال: 2010
ISSN: 1050-2947,1094-1622
DOI: 10.1103/physreva.81.062708