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Digitale Medien

The Drell-Hearn-Gerasimov sum rule and the constituent quark model (1993)

Drechsel, D. ; Giannini, M. M.

Springer

Few body systems 15 (1993), S. 99-108

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Details

ISSN: 1432-5411

Quelle: Springer Online Journal Archives 1860-2000

Thema: Physik

Notizen: Abstract The helicity structure function of the nucleon has been calculated for the constituent quark model and compared to the prediction of the Drell-Hearn-Gerasimov sum rule. The multipole decomposition of the sum rule shows large cancellations between different resonances. The small isoscalar-isovector contribution is related to the admixture of aD-state (“bag deformation”) in the nucleon's wave function. The calculations indicate a relatively slow saturation of this part of the sum rule with excitation energy.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1007/BF01076427

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