Northwestern Events Calendar

Oct
14
2019

HEP Seminar: Gabriele Dian: Exploring the Surroundings of the Amplituhedron

When: Monday, October 14, 2019
4:00 PM - 5:00 PM Central

Where: Technological Institute, F160, 2145 Sheridan Road, Evanston, IL 60208 map it

Audience: Faculty/Staff - Student - Public - Post Docs/Docs - Graduate Students

Contact: Pamela Villalovoz   (847) 491-3644

Group: Physics and Astronomy High Energy Physics Seminars

Category: Academic

Description:

The on-shell superspace formulation of N=4 SYM allows the writing of all possible scattering processes in one compact object called the super-amplitude. Famously, the super-amplitude integrand can be extracted from generalized polyhedra called the amplituhedron. In the paper arXiv:1701.00452v3 a new geometrical object is introduced called the correlahedron, conjectured to be equivalent to  stress-energy correlators. These are intimately related to planar amplitudes, giving them in multiple lightlike limits.  In this talk I will review some geometrical aspects of the amplituhedron, also giving a graphical visualization, and show some recent results on its connection with a lightlike limit of the correlahedron.

 

Seminar Speaker: Gabriele Dian, Durham University

 

Keywords: Physics, Astronomy, HEP

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