Inclusive hadron distributions in p+p collisions from saturation models of HERA DIS data

Abstract

Dipole models based on various saturation scenarios provide reasonable fits to small-x DIS inclusive, diffractive and exclusive data from HERA. Proton un-integrated gluon distributions extracted from such fits are employed in a $k_{\perp }$-factorization framework to calculate inclusive gluon distributions at various energies. The n-particle multiplicity distribution predicted in the Glasma flux tube approach shows good agreement with data over a wide range of energies. Hadron inclusive transverse momentum distributions expressed in terms of the saturation scale demonstrate universal behavior over a wider kinematic range systematically with increasing center of mass energies.

Comments: 4 pages, 6 figures, talk given by P. T. at the conference "ICPAQGP-2010", Goa, India, 6-10 December 2010