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Title: First results for electromagnetic three-nucleon form factors from high-precision two-nucleon interactions
Authors: Pinto, Sérgio Alexandre
Stadler, Alfred
Gross, Franz
Keywords: Three-nucleon bound states
Electromagnetic form factors
Covariant Spectator Theory
Relativistic effects
Issue Date: 2010
Publisher: The American Physical Society
Citation: Phys. Rev. C 81, 014007 (2010)
Abstract: The electromagnetic form factors of the three-nucleon bound states were calculated in complete impulse approximation in the framework of the Covariant Spectator Theory for the new high-precision two-nucleon interaction models WJC-1 and WJC-2. The calculations use an approximation for the three-nucleon vertex functions with two nucleons off mass shell. The form factors with WJC-2 are close to the ones obtained with the older model W16 and to nonrelativistic potential calculations with lowest-order relativistic corrections, while the form factors with the most precise two-nucleon model WJC-1 exhibit larger differences. These results can be understood when the effect of the different types of pion-nucleon coupling used in the various models is examined.
Type: article
Appears in Collections:FIS - Publicações - Artigos em Revistas Internacionais Com Arbitragem Científica

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