ISSN:
1434-601X
Keywords:
PACS:12.39.Ki Relativistic quark model – 13.40.Gp Electromagnetic form factors – 14.20.Gk Baryon resonances with S=0
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstact: We perform a calculation of the relativistic transition form factors for the electromagnetic excitation of the nucleon resonances. We use as input the 3-quark wave functions obtained in a Constituent Quark Model with three-body forces in the hypercentral approach. With respect to the non relativistic calculations a significant contribution is obtained up to Q 2≃ 2 (GeV/c)2. However, the low Q 2-behaviour exhibits a lack of strength, which may be connected with the need of taking into account explicitly further degrees of freedom beyond the three constituent quark ones.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/s100500050137
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