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Conference Papers Few-Body Systems Supplementum Year : 2003

Comparison of different boost transformations for the calculation of form factors in relativistic quantum mechanics

L. Theussl
  • Function : Author
A. Amghar
  • Function : Author
S. Noguera
  • Function : Author

Abstract

The effect of different boost expressions, pertinent to the instant, front and point forms of relativistic quantum mechanics, is considered for the calculation of the ground-state form factor of a two-body system in simple scalar models. Results with a Galilean boost as well as an explicitly covariant calculation based on the Bethe-Salpeter approach are given for comparison. It is found that the present so-called point-form calculations of form factors strongly deviate from all the other ones. This suggests that the formalism which underlies them requires further elaboration. A proposition in this sense is made.

Dates and versions

in2p3-00013699 , version 1 (28-01-2003)

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L. Theussl, A. Amghar, B. Desplanques, S. Noguera. Comparison of different boost transformations for the calculation of form factors in relativistic quantum mechanics. European Conference on Few-Body Problems in Physics 18, Sep 2002, Bled, Slovenia. pp.393-398. ⟨in2p3-00013699⟩
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