Nov 19 – 23, 2018
Other Institutes
Europe/Warsaw timezone

Small qT factorization and the soft function for top pair production at NNLO

Nov 19, 2018, 5:05 PM
25m
IFJ PAN

IFJ PAN

Speaker

Sebastian Sapeta (IFJ PAN)

Description

The cross section for top quark pair production factorizes at small transverse momentum of the heavy quark pair, qT. One of the key ingredients that appears in the factorization formula is the soft function, which mediates soft gluon exchanges between particles. I shall present the complete result for the small-qT soft function at the next-to-next-to-leading order. This is the last missing element needed to calculate the NNLO cross section for top quark pair production by means of the qT slicing method.

Presentation materials