Elsevier

Physics Letters B

Volume 108, Issue 3, 21 January 1982, Pages 159-163
Physics Letters B

Nucleon polarization and the nuclear charge operator

https://doi.org/10.1016/0370-2693(82)91165-0Get rights and content

Abstract

Effects of nucleon polarization on the nuclear charge operator have been evaluated in a constituent quark model. At momentum transfer q ≈ 4 fm−1 monopole, dipole and quadrupole excitations are of equal importance. In a harmonic oscillator model for 3He all multipolarities give negative contributions, leading to an overall contribution comparable to the relativistic pair effect. The influence of realistic wave functions, coupling constants and off-shell form factors is discussed.

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    Supported in part by the Deutsche Forschungsgemeinschaft, contract no. Eh 4/11.

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