NT/RBRC seminar

"Factorization and resummation at subleading powers"

Presented by Dr Sebastian Jaskiewicz, Durham

Friday, April 21, 2023, 11:00 am — Large Seminar Room, Bldg. 510

Abstract: Precise theoretical predictions are a key ingredient in ongoing tests of the Standard Model and in searches for physics beyond it. Since its inception twenty years ago, Soft Collinear Effective Theory (SCET) has been successfully applied to improve the precision of many important observables in collider physics. It is now standard practice to use SCET to derive factorization theorems and apply renormalization group (RG) methods to achieve leading power resummation of large logarithms that appear in regions of phase space with disparate energy scales. In this talk, I will discuss the recent developments in taking the step beyond the leading term in the power expansion. Focusing on the threshold Drell-Yan process, I will explain how the general factorization formula can be derived and I will discuss new objects that emerge beyond leading power: collinear jet functions and generalized soft functions. I will also explain challenges and advancements in achieving resummation at LL and beyond at next-to-leading power.

Hosted by: Yoshitaka Hatta

Join Videoconference More Information

18735  |  INT/EXT  |  Events Calendar


Not all computers/devices will add this event to your calendar automatically.

A calendar event file named "calendar.ics" will be placed in your downloads location. Depending on how your device/computer is configured, you may have to locate this file and double click on it to add the event to your calendar.

Event dates, times, and locations are subject to change. Event details will not be updated automatically once you add this event to your own calendar. Check the Lab's Events Calendar to ensure that you have the latest event information.