24–30 Sept 2022
Corigliano Calabro, Italy
Europe/Rome timezone

Small-x resummation in coeffcient function for differential heavy-quarks production and next-to-leading logarithms

26 Sept 2022, 16:40
20m
Corigliano Calabro, Italy

Corigliano Calabro, Italy

BV Airone Resort
Low x, PDFs and hadronic final states Low x, PDFs and hadronic final states

Speakers

Federico Silvetti (INFN - National Institute for Nuclear Physics) Federico Silvetti (Sapienza Universita e INFN, Roma I (IT))

Description

Precise theoretical predictions of QCD scattering and radiation
processes are fundamental building blocks for the LHC precision
program. Fixed-order computations must be supplemented by all-order
resummations where logarithmically-enhanced contributions become
large. Among those, small-$x$ logarithms are enhanced when the ratio,
$x=\frac{Q^2}{S}$ between the typical energy scale of a scattering
process $Q$ and the total centre of mass energy available $S$ is
small.
These corrections are important for several processes within the
kinematical range of the LHC, including heavy flavour production,
Higgs production in gluon fusion and Drell-Yan. This talk will discuss
recent developments on small-$x$ resummation in differential cross
sections in rapidity, transverse momentum and invariant mass and their
application to heavy flavour production at the LHC and Parton
Distribution Function determination. Additionally, an extension of the
resummation of next-to-leading logarithms for inclusive cross sections
will be presented, using a Higgs-induced Deep Inelastic Scattering as
an explicit case study.

Presentation materials