A large number of double parton scatterings have been recently observed by the CDF collaboration. The double parton scattering process measures σeff, a nonperturbative quantity related to the hadronic transverse size and with the dimensions of a cross section. The actual value measured by the CDF collaboration is considerably smaller as compared with the naive expectation, namely, the value of the inelastic nondiffractive cross section. The small value of σeff may be an effect of the hadron structure in the transverse plane. We discuss the problem by taking into account, at all orders, the two-body parton correlations in the many-body parton distributions.
No takes yet. Share an insight, caveat, or question.
Calucci et al. (1998) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: