Results from a phenomenological analysis of W and Z hard diffractive hadroproduction at high energies are reported. Using the Regge factorization approach, we consider the recent diffractive parton density functions extracted by the H1 Collaboration at DESY-HERA. In addition, we take into account multiple Pomeron exchange corrections considering a gap survival probability factor. It is find that the ratio of diffractive to non-diffractive boson production is in good agreement with the CDF and D0 data. We make predictions which could be compared to future measurements at the LHC.

In this paper we study the inelastic quarkonium photoproduction in coherent pp/pP b/P bP b interactions. Considering the ultra relativistic hadrons as a source of photons, we estimate the total h1 + h2 → h ⊗ V + X (V = J/Ψ and Υ) cross sections and rapidity distributions at LHC energies. Our results demonstrate that the experimental analysis of this process can be used to understand the underlying mechanism governing heavy quarkonium production.

We present an exploratory QCD analysis of the neutrino structure functions in charged current DIS using the color dipole formalism. The dipole cross sections are taken from recent phenomenological/theoretical studies in deep inelastic inclusive production. The theoretical predictions are compared to the available experimental results in the small-x region, which has never been considered so far.

The diffractive heavy quark cross sections are estimated considering photon-Pomeron (γIP ) interactions in hadron -hadron at RHIC, Tevatron, and CERN LHC energies. We assume the validity of the hard diffractive factorization and calculate the charm and bottom total cross sections and rapidity distributions using the diffractive parton distribution functions of the Pomeron obtained by the H1 Collaboration at DESY-HERA. Moreover, we compare our predictions with those obtained using the dipole model. We verify that this process is a good test of the different mechanisms for diffractive heavy quark production at hadron -hadron colliders.

The single diffractive cross section for heavy quarks production is calculated in next-no-leading order (NLO) for nucleus-nucleus collisions. Such processes are expected to occur at the LHC, where the nuclei involved are lead at √ s = 5.5 TeV and calcium at √ s = 6.3 TeV. We start using the hard diffractive factorization formalism, taking into account a recent experimental parameterization for the Pomeron Structure Function (DPDF). Absorptive corrections are accounted by the multiple Pomeron contributions considering a gap survival probability, where its theoretical uncertainty for nuclear collisions is discussed. We estimate the diffractive ratios for single diffraction process in nuclear coherent/incoherent collisions at the LHC.