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High Energy Physics Seminar

Monday, February 3, 2020
4:00pm to 5:00pm
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Lauritsen 469
SUSY Rilles: A Speculation on Superstring Signatures in the Cosmic Microwave Background
S. James Gates, Jr., Brown University,

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.

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