The Bonn Meson Exchange Model for the Nucleon Nucleon Interaction

Nowadays it has become customary in nuclear physics to denote by “tradition” the approach that considers nucleons and mesons as the relevant degrees of freedom. It is the purpose of this chapter to review this “traditional” approach in the area of nuclear forces and their applications to nuclear structure.

The Meson Theory of Nuclear Forces and Nuclear Structure

Nuclear charge and magnetization density distribution parameters from elastic electron scattering

Low-energy hadron physics from effective chiral Lagrangians with vector mesons

A review of the program in space-radiation protection at the Langley Research Center is given. The relevant Boltzmann equations are given with a discussion of approximation procedures for space applications. The interaction coefficients are related to the solution of the many-body Schrodinger equations with nuclear and electromagnetic forces. Various solution techniques are discussed to obtain relevant interaction cross sections with extensive comparison with experiments. Solution techniques for the Boltzmann equations are discussed in detail. Transport computer code validation is discussed through analytical benchmarking, comparison with other codes, comparison with laboratory experiments, and measurements in space. Applications to missions to the Moon and Mars are discussed.

Transport Methods and Interactions for Space Radiations

Analysis of electromagnetic nucleon form factors

Electromagnetic form factors of the peoton at low four-momentum transfer (II)

Electromagnetic form factors of the proton at low four-momentum transfer

It is shown that the proton rms radius should be determined from fitting a polynomial of second order to the low-q
2 form factors. The commonly used polynomial of first order yields radius values which are too small. The proton rms radius has been redetermined from an analysis of the electron scattering data measured at three laboratories. The best fit value is 〈r

 E
 2
 〉1/2=0.87±0.02 fm.

R.D. Wendling

Papers

Analysis of electromagnetic nucleon form factors

Electromagnetic form factors of the peoton at low four-momentum transfer (II)

Electromagnetic form factors of the proton at low four-momentum transfer

On the determination of the proton RMS-radius from electron scattering data