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Electromagnetic splitting for mesons and baryons using dressed constituent quarks

Abstract : Electromagnetic splittings for mesons and baryons are calculated in a formalism where the constituent quarks are considered as dressed quasiparticles. The electromagnetic interaction, which contains coulomb, contact and hyperfine terms, is folded with the quark electrical density. Two different types of strong potentials are considered. Numerical treatment is done very carefully and several approximations are discussed in detail. Our model contains only one free parameter and the agreement with experimental data is reasonable although some puzzles still remain.
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http://hal.in2p3.fr/in2p3-00014268
Contributor : Lpsc Bibliotheque <>
Submitted on : Friday, December 19, 2003 - 3:08:14 PM
Last modification on : Thursday, November 19, 2020 - 12:58:38 PM

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B. Silvestre-Brac, F. Brau, C. Semay. Electromagnetic splitting for mesons and baryons using dressed constituent quarks. Journal of Physics G: Nuclear and Particle Physics, IOP Publishing, 2003, 29, pp.2685-2701. ⟨in2p3-00014268⟩

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