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IAS PROGRAM ON PARTICLE THEORY
Scattering Amplitude Constraints on Effective Field Theories
Dr Congkao Wen, Queen Mary University of London
日期 : 2015年 11月 9日 (星期一)
時間 : 下午2時
地點 : 香港科技大學 李兆基校園 盧家驄薈萃樓4樓 高研院4042室
詳情

Abstract

In this talk, the speaker will discuss how the requirement of having consistent scattering amplitudes, combined with supersymmetry, can constrain higher-dimensional operators in effective field theories. The approach is based on studying the properties of on-shell S-matrix associated with local operators of interest. The theories he will consider include maximally supersymmetric theory in four and three dimensions, as well as six-dimensional theories with (1,1), (2,0) and (1,0) supersymmetry. Supersymmetric non-renormalization theorems for certain higher-dimensional operators will be derived. For the case of 6D (2,0) and (1,0) theories, the non-renormalization theorems lead to the a-theorem.

The seminar is free and open to all. Seating is on a first come, first served basis.

HKUST Jockey Club Institute for Advanced Study
Enquiries: ias@ust.hk / 2358 5912
http://ias.ust.hk