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Properties of few-body systems in relativistic quantum mechanics and constraints from transformations under Poincar\'{e} space-time translations

Authors :
B. Desplanques
Laboratoire de Physique Subatomique et de Cosmologie (LPSC)
Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)
Source :
Nuclear Physics A, 18th International Conference on Few-Body Problems in Physics, 18th International Conference on Few-Body Problems in Physics, Aug 2006, Santos, Sao Paulo, Brazil. pp.578-582, ⟨10.1016/j.nuclphysa.2007.03.098⟩
Publication Year :
2006

Abstract

Different approaches have been applied to the calculation of form factors of various hadronic systems within relativistic quantum mechanics. In a one-body current approximation, they can lead to results evidencing large discrepancies. Looking for an explanation of this spreading, it is shown that, for the largest part, these discrepancies can be related to a violation of Poincar\'e space-time translation invariance. Beyond energy-momentum conservation, which is generally assumed, fulfilling this symmetry implies specific relations that are generally ignored. Their relevance within the present context is discussed in detail both to explain the differences between predictions and to remove them.<br />Comment: 5 pages, to be published in the proceedings of the 18th International Conference on Few-Body Problems in Physics (Santos, Sao Paulo, Brasil)

Details

Language :
English
Database :
OpenAIRE
Journal :
Nuclear Physics A, 18th International Conference on Few-Body Problems in Physics, 18th International Conference on Few-Body Problems in Physics, Aug 2006, Santos, Sao Paulo, Brazil. pp.578-582, ⟨10.1016/j.nuclphysa.2007.03.098⟩
Accession number :
edsair.doi.dedup.....a98045722d1aebbe5db587d3c613d0b4
Full Text :
https://doi.org/10.1016/j.nuclphysa.2007.03.098⟩