Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1999-07-21
Nucl.Phys. A666 (2000) 14-17
Physics
High Energy Physics
High Energy Physics - Phenomenology
4 pages; latex using espcrc1.sty; 4 postscript figures; Invited talk at the Workshop ``Nucleon '99'', Frascati; Italy 7-9 June
Scientific paper
10.1016/S0375-9474(00)00004-X
A simple picture of the constituent quark as a composite system of point-like partons is used to construct the unpolarized and polarized parton distributions by a convolution between constituent quark momentum distributions and constituent quark structure functions. We achieve good agreement with experiments in the unpolarized, as well as, in the polarized case. When our results are compared with similar calculations using non-composite constituent quarks, the accord with the experiments of the present scheme is impressive. We conclude that DIS data are consistent with a low energy scenario dominated by composite constituents of the nucleon.
Scopetta Sergio
Traini Marco
Vento Vicente
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