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Comparison of Different Boost Transformations for the Calculation of Form Factors in Relativistic Quantum Mechanics

L. Theussl·A. Amghar·B. Desplanques·S. Noguera
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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.

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L. Theussl, A. Amghar, B. Desplanques, S. Noguera. 2003-01-17. Comparison of Different Boost Transformations for the Calculation of Form Factors in Relativistic Quantum Mechanics. https://arxiv.org/abs/hep-ph/0301137

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