[He-sem] Cosmology Seminar TODAY

Andrei Khmelnitsky akhmelni at ictp.it
Tue Jun 27 12:20:09 CEST 2017


*************************************
COSMOLOGY SEMINAR
*************************************


TUESDAY, 27 JUNE 2017, 16:30 p.m.
Luigi Stasi Seminar Room - ICTP Leonardo Bldg. 


Hayden LEE
(University of Cambridge, UK)

"Non-Gaussianity as a Particle Detector"

Abstract: Cosmological correlation functions encode the spectrum of particles during inflation, in analogy to scattering amplitudes in colliders. In this talk, I will discuss the imprints of massive particles with arbitrary spin on cosmological correlators. The spinning case is particularly interesting because the detection of massive higher-spin particles would be indicative of a stringy origin of inflation. I will describe their key spectroscopic features in the scalar and tensor bispectra, and discuss scenarios in which they lead to observable non-Gaussianity.

**************************************

_______________________________________________
He-sem mailing list
He-sem at lists.ictp.it <mailto:He-sem at lists.ictp.it>
https://lists.ictp.it/mailman/listinfo/he-sem <https://lists.ictp.it/mailman/listinfo/he-sem>


More information about the science-ts mailing list