Simple mechanism of softening structure functions at low transverse momentum region

The relevance of non-abelian dipole configurations of quarks in forming nucleus structure functions is discussed. It is shown that radiation generated by dipole configurations while moving relativistically along their axes is described by distributions which are finite and infrared stable in a low t...

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Bibliographic Details
Published in:Physics letters. B 1998-12, Vol.443 (1), p.387-393
Main Authors: Molodtsov, S.V., Snigirev, A.M., Zinovjev, G.M.
Format: Article
Language:English
Subjects:
Classical bremsstrahlung
Non-abelian dipole
Structure functions
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Summary:The relevance of non-abelian dipole configurations of quarks in forming nucleus structure functions is discussed. It is shown that radiation generated by dipole configurations while moving relativistically along their axes is described by distributions which are finite and infrared stable in a low transverse momentum region. They approach exponentially the perturbative regime of large transverse momenta and the rate of this transition is defined by the distance between the dipole charges in its rest frame.
ISSN:0370-2693
1873-2445
DOI:10.1016/S0370-2693(98)01290-8