6533b7d2fe1ef96bd125ea0a

RESEARCH PRODUCT

Massive Boson Production at Small qT in Soft-Collinear Effective Theory

Daniel WilhelmThomas BecherMatthias Neubert

subject

PhysicsNuclear and High Energy PhysicsParticle physicsLarge Hadron Collider010308 nuclear & particles physicsHigh Energy Physics::PhenomenologyElectroweak interactionTevatron01 natural sciencesAtomic and Molecular Physics and OpticsSoft-collinear effective theory0103 physical sciencesEffective field theoryHiggs bosonHigh Energy Physics::ExperimentAnomaly (physics)010306 general physicsBoson

description

We study the differential cross sections for electroweak gauge-boson and Higgs production at small and very small transverse-momentum qT. Large logarithms are resummed using soft-collinear effective theory. The collinear anomaly generates a non-perturbative scale q⁎, which protects the processes from receiving large long-distance hadronic contributions. A numerical comparison of our predictions with data on the transverse-momentum distribution in Z-boson production at the Tevatron and LHC is given.

https://doi.org/10.1016/j.nuclphysbps.2012.11.020