Joint cosmology seminar at MIT:

Tuesday, October 29, 2019, 2:30 pm
Cosman Seminar Room
Center for Theoretical Physics
Building 6C, Room 6C-442
Massachusetts Institute of Technology
Refreshments at 2:00 in the same room

SUSY Rilles: A Speculation on Superstring Signatures in the Cosmic Microwave Background

Sylvester James Gates Jr.


We speculate about the imprint of higher spin supermultiplets on cosmological correlators, i.e., the non-Gaussianity of the cosmic microwave background. Supersymmetry is used as a guide to introduce the contribution of fermionic higher spin particles, which have been neglected thus far in the literature. We compute the curvature perturbation 3-point function for supersymmetric higher-spin particle exchanges and find the known P(cos) angular dependence is accompanied by superpartner contributions.