Bertrand Ducloue

Forward

Inclusive production of

J/\psi

J/\psi

production in proton-nucleus collisions at high energy

mesons, especially at forward rapidities, is an important probe of small-x gluons in protons and nuclei. In this paper we re-evaluate the production cross sections in the Color Glass Condensate framework, where the process is described by a large x gluon from the probe splitting into a quark pair and eikonally interacting with the target proton or nucleus. Using a standard collinear gluon distribution for the probe and an up to date dipole cross section fitted to HERA data to describe the target we achieve a rather good description of the cross section in proton-proton collisions, although with a rather large normalization uncertainty. More importantly, we show that generalizing the dipole cross section to nuclei in the Glauber approach results in a nuclear suppression of

Single inclusive forward hadron production at next-to-leading order

J/\psi

Evaluating the double parton scattering contribution to Mueller-Navelet jets production at the LHC

production that is much closer to the experimental data than claimed in previous literature.

Forward J/ψ production at high energy: Centrality dependence and mean transverse momentum

We discuss single inclusive hadron production from a high energy quark scattering off a strong target color field in the Color Glass Condensate formalism. Recent calculations of this process at the next-to-leading order accuracy have led to negative cross sections at large transverse momenta. We identify the origin of this problem as an oversubtraction of the rapidity divergence into the Balitsky-Kovchegov evolution equation for the target. We propose a new way to implement the kinematical restriction on the emitted gluons to overcome this difficulty.

Implementation of NLO high energy factorization in single inclusive forward hadron production

We propose a model to study the importance of double parton scattering (DPS) in Mueller-Navelet jets production at the LHC which is consistent with the BFKL framework used to compute the single parton scattering contribution to this process. We study this model in kinematics corresponding to existing and possible future measurements at the LHC and estimate the importance of this DPS contribution on relevant observables for this process, namely the cross section and the azimuthal correlation of the jets.

Mueller-Navelet jets at LHC: the first complete NLL BFKL study

Forward rapidity J/

Deep inelastic scattering in the dipole picture at next-to-leading order

\psi