Particle Physics with the Cosmic Microwave Background with SPT-3G
Abstract
The cosmic microwave background (CMB) encodes information about the content and evolution of the universe. The presence of light, weakly interacting particles impacts the expansion history of the early universe, which alters the temperature and polarization anisotropies of the CMB. In this way, current measurements of the CMB place interesting constraints on the neutrino energy density and mass, as well as on the abundance of other possible light relativistic particle species. We present the status of an on-going 1500 sq. deg. survey with the SPT-3G receiver, a new mm-wavelength camera on the 10-m diameter South Pole Telescope (SPT). The SPT-3G camera consists of 16,000 superconducting transition edge sensors, a 10x increase over the previous generation camera, which allows it to map the CMB with an unprecedented combination of sensitivity and angular resolution. We highlight projected constraints on the abundance of sterile neutrinos and the sum of the neutrino masses for the SPT-3G survey, which could help determine the neutrino mass hierarchy.
Cite
@article{arxiv.1911.08047,
title = {Particle Physics with the Cosmic Microwave Background with SPT-3G},
author = {J. S. Avva and P. A. R. Ade and Z. Ahmed and A. J. Anderson and K. Aylor and R. Basu Thakur and A. N. Bender and B. A. Benson and L. E. Bleem and S. Bocquet and L. Bryant and J. E. Carlstrom and F. W. Carter and T. W. Cecil and C. L. Chang and T. M. Crawford and A. Cukierman and T. de Haan and J. Ding and M. A. Dobbs and S. Dodelson and D. Dutcher and W. Everett and K. R. Ferguson and A. Foster and J. Gallicchio and A. E. Gambrel and R. W. Gardner and J. C. Groh and S. Guns and N. W. Halverson and A. H. Harke-Hosemann and N. L. Harrington and J. W. Henning and G. P. Holder and W. L. Holzapfel and D. Howe and N. Huang and K. D. Irwin and O. B. Jeong and M. Jonas and A. Jones and T. S. Khaire and L. Knox and A. M. Kofman and M. Korman and D. L. Kubik and S. Kuhlmann and C. -L. Kuo and A. T. Lee and A. E. Lowitz and S. S. Meyer and D. Michalik and J. Montgomery and A. Nadolski and T. Natoli and H. Nguyen and G. I. Noble and V. Novosad and S. Padin and Z. Pan and P. Paschos and J. Pearson and C. M. Posada and W. Quan and S. Raghunathan and A. Rahlin and C. L. Reichardt and D. Riebel and J. E. Ruhl and J. T. Sayre and E. Shirokoff and G. Smecher and J. A. Sobrin and A. A. Stark and J. Stephen and K. T. Story and A. Suzuki and K. L. Thompson and C. Tucker and K. Vanderlinde and J. D. Vieira and G. Wang and N. Whitehorn and W. L. K. Wu and V. Yefremenko and K. W. Yoon and M. R. Young},
journal= {arXiv preprint arXiv:1911.08047},
year = {2019}
}
Comments
6 pages, 2 figures, TAUP 2019