Speaker
Shubham mishra
(IIT Hyderabad)
Description
We investigate the origin of next-to-leading power corrections to the event shapes thrust and $c$-parameter, at next-to-leading order.
For both event shapes we trace the origin of such terms in the exact
calculation, and compare with a recent approach involving
the eikonal approximation and momentum shifts that follow from the Low-Burnett-Kroll-Del Duca theorem. We assess the differences both analytically and numerically.For the $c$-parameter both exact and approximate results are expressed in terms of elliptic integrals, but near the elastic limit it exhibits patterns similar to the thrust results.
Primary author
Shubham mishra
(IIT Hyderabad)
