12–16 Dec 2022
IISER Mohali
Asia/Kolkata timezone

The three loop four parton scattering in QCD

13 Dec 2022, 12:15
15m
LH6 (IISER Mohali)

LH6

IISER Mohali

Lecture Hall Complex, IISER Mohali, Sector 81, Knowledge city, SAS Nagar, Punjab, India

Speaker

Dr Amlan Chakraborty (State University of New York, Buffalo)

Description

In this talk, I discuss the calculation of all helicity amplitudes for four-parton scattering in three-loop massless QCD. Our results allow us, for the first time, to verify completely the structure of quadrupole IR divergences at this perturbative order in QCD. From the high-energy limit of the amplitudes, we have extracted the three-loop gluon Regge trajectory in full QCD. Our findings provide a highly non-trivial test of the universality of high-energy factorization in QCD.

Session Heavy Ions and QCD

Author

Dr Amlan Chakraborty (State University of New York, Buffalo)

Presentation materials