Forward di-jet production in dilute-dense collisions

E. Petreska, P. Kotko, K. Kutak, C. Marquet, S. Sapeta, A. van Hameren, C. Marquet, B. Pire, F. Sabatie
2016 EPJ Web of Conferences  
We derive a factorization formula for forward production of two jets in dilutedense collisions that is valid for an arbitrary value of the momentum imbalance of the jets, k t . This generalizes the transverse momentum dependent (TMD) factorization formula that has been derived before by Dominguez et al. Their formula is valid only for small values of the transverse momentum of the small-x gluon from the target; it has k t dependent TMD gluon distributions, but on-shell hard matrix elements. We
more » ... xtend the TMD formula to all ranges of k t by including off-shell matrix elements. We also add finite N c corrections. The new formula encompasses both, the TMD factorization for small k t on the order of the saturation scale, and the High Energy Factorization (HEF) for large k t on the order of the momentum of the jets. The TMD and HEF factorizations can be derived from the Color Glass Condensate (CGC) formula for forward di-jet production in the appropriate limits. We show explicitly the equivalence of HEF and CGC in the dilute target approximation.
doi:10.1051/epjconf/201611204006 fatcat:xj774cmdyvd4tfg5fxh3j7uq4q