High-energy resummation at the LHC: the case of Drell-Yan processes
arXiv:1006.2314 · doi:10.1016/j.nuclphysbps.2010.08.014
Abstract
We first review the general framework which enables one to resum high-energy logarithms in hadronic processes, both in the evolution of parton densities and in the coefficient functions. We then present an all-order calculation in perturbative QCD of the inclusive Drell Yan and vector boson production in hadron-hadron collisions, in the limit where centre of mass energy is much bigger than the invariant mass of the final state. Our calculation resums leading non-trivial logarithms in the ratio of these two scales. We also study the phenomenological relevance of the high-energy corrections for Drell-Yan processes at the LHC. We find that the resummation corrects the NNLO result by a few percent, for values of the invariant mass of the lepton pair below 100 GeV. Corrections to W, Z production are expected to be of the same order.
arXiv comment5 pages, Talk given at 10th DESY Workshop on Elementary Particle Theory: Loops and Legs 2010, Worlitz, Germany 25-30 April 2010
References in corpus (22)
- Parton distributions for the LHC
- Implications of CTEQ global analysis for collider observables
- BFKL pomeron in the next-to-leading approximation
- High-precision QCD at hadron colliders: electroweak gauge boson rapidity distributions at NNLO
- The Three-Loop Splitting Functions in QCD: The Singlet Case
- Soft-gluon resummation for Higgs boson production at hadron colliders
- High-Energy Factorization and Small-X Deep Inelastic Scattering Beyond Leading Order
- Higher-Order Soft Corrections to Lepton Pair and Higgs Boson Production
- A determination of parton distributions with faithful uncertainty estimation
- Higgs production in gluon fusion at next-to-next-to-leading order QCD for finite top mass
- Higgs production via gluon-gluon fusion with finite top mass beyond next-to-leading order
- Finite top quark mass effects in NNLO Higgs boson production at LHC
- Finite top mass effects for hadronic Higgs production at next-to-next-to-leading order
- Threshold resummation for electroweak annihilation from DIS data
- Small x Resummation with Quarks: Deep-Inelastic Scattering
- Heavy top limit and double-logarithmic contributions to Higgs production at m_H^2 / s << 1
- Heavy Quark Production at High Energy
- k-Factorization and Small-x Anomalous Dimensions
- Mellin Moments of the Next-to-next-to Leading Order Coefficient Functions for the Drell-Yan Process and Hadronic Higgs-Boson Production
- High Energy Resummation of Drell-Yan Processes
- Resummation of Hadroproduction Cross-sections at High Energy
- High-energy resummation in direct photon production