NPAC (Nuclear/Particle/Astro/Cosmo) Forum

Speaker: Xiangdong Ji (TBC) University of Maryland

 

Available Downloads:

Room and Building: 
5280 Chamberlin Hall

The South Pole Telescope (SPT) is a 10 meter diameter millimeter wavelength telescope located at the South Pole. It's primary science project is to conduct a 4000 square degree survey to find clusters of galaxies via the Sunyaev-Zel'dovich (SZ) effect, the inverse Compton scattering of the CMB off of hot intra-cluster gas. An SZ survey of this size should find several thousand galaxy clusters, which can in principle place interesting constraints on the dark energy density and equation of state, as well as produce a host of other secondary science results (e.g. - measurements of small scale primary and other secondary CMB anisotropies, gravitational lensing of the CMB, point source catalogs at millimeter wavelengths, ...). To achieve this required over an order of magnitude increase in mapping speed over previous generation millimeter wavelength receivers, and was accomplished with the development of a 960 element large format bolometer array. I will discuss the design and construction of the SPT receiver, SPT's current project status, which recently began its second year of observations, and future plans for the SPT.

Speaker: Bradford Benson UC Berkeley

 

Available Downloads:

Room and Building: 
4274 Chamberlin Hall

String theory has been around for over 30 years. The string vacuum determines the spectrum of states and gauge interactions of the low energy theory. Some talk about on the order of 10^{300} vacua for string theory, BUT to date there are only a handfull of candidate vacua which look anything like our observed low energy world. In this talk I will discuss a new strategy for finding the minimal supersymmetric standard model in the immense string landscape.

Speaker: Stuart Raby Ohio

 

Available Downloads:

Room and Building: 
4274 Chamberlin Hall

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