Claudio CIOFI degli ATTI DIFFRACTION on NUCLEI ... - QNP2012

Gribov inelastic shadowing by the light-cone dipole approach
(Zamolodchikov, Kopeliovich, Lapidus, JEPT Lett. 33 (1981) 612)
Gribov corrections can be summed to all orders by switching to
the interaction eigenstates of the propagating hadron; these were
identified as color dipoles in agreement with the 2-gluon exchange
interaction in hadron-Nucleon scattering. A certain degree of model
dependence is introduced, which is reflected in the Key ingredients:
the universal dipole nucleon cross section, e.g.
[ ( )]
σ¯qq (r T , s) = σ 0 (s) 1 − exp − r2 T
R0 2(s) the light cone wave function of the projectile, e.g.:
( )
|Ψ N (r 1 , r 2 , r 3 )| 2 = 2
π Rp
2 exp − 2r2 T
Rp
2
C. Ciofi <strong>degli</strong> Atti
11 QNP2012, Palaiseau, April 16-20, 2012