25.10.2017 (Wednesday)

Current Algebra and CFTs at Null Infinity from Amplitudes

Regular Seminar Dhritiman Nandan (Edinburgh)

14:00 IC
room H503

We describe the leading and sub-leading multi-soft behavior of tree level gluon amplitudes and an underlying two-dimensional description of such scenarios where the soft limits are currents related to asymptotic symmetries of YM theory. Such kinematic limits allow us to explore the algebra of these two dimensional currents and we comment on their CFT interpretation. Then we explore a possible two-dimensional description of certain amplitudes in massive scalar QFT’s.