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Electromagnetic form factor via Minkowski and Euclidean Bethe-Salpeter amplitudes

Abstract : The electromagnetic form factors calculated through Euclidean Bethe-Salpeter amplitude and through the light-front wave function are compared with the one found using the Bethe-Salpeter amplitude in Minkowski space. The form factor expressed through the Euclidean Bethe-Salpeter amplitude (both within and without static approximation) considerably differs from the Minkowski one, whereas form factor found in the light-front approach is almost indistinguishable from it.
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http://hal.in2p3.fr/in2p3-00176289
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Submitted on : Friday, December 7, 2007 - 2:24:14 PM
Last modification on : Thursday, November 19, 2020 - 12:58:52 PM

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V.A. Karmanov, J. Carbonell, M. Mangin-Brinet. Electromagnetic form factor via Minkowski and Euclidean Bethe-Salpeter amplitudes. 20th European Few Body Conference (EFB 20), Sep 2007, Pisa, Italy. pp.283-286, ⟨10.1007/s00601-008-0309-4⟩. ⟨in2p3-00176289⟩

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