# Anticipating the punch: The universal structure of large logarithms

#### Anticipating the punch: The universal structure of large logarithms

- Event time: 2:00pm
- Event date: 27th March 2019
- Speaker: Melissa van Beekveld (University of Nijmegen)
- Location: Higgs Centre Seminar Room, Room 4305, James Clerk Maxwell Building (JCMB) James Clerk Maxwell Building Peter Guthrie Tait Road Edinburgh EH9 3FD GB

### Event details

Cross-sections in perturbative QCD are plagued by large corrections from soft and collinear radiation. The most singular terms are known to be universal, which allows their resummation to all orders in the coupling, hereby curing the cross-section of the large uncertainties. In this talk, I will explain how these large corrections come about, how resummation solves the issue and whether we can expect the same universal structure for a class of *next-to-singular* contributions. We'll also see how big their numerical impact is on the transverse momentum distribution of the single photon production process.

#### Event resources

### About Particle Physics Theory seminars

The Particle Physics Theory seminar is a weekly series of talks reflecting the diverse interests of the group. Topics include analytic and numerical calculations based on the Standard Model of elementary particle physics, theories exploring new physics, as well as more formal developments in gauge theories and gravity..