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Aird, K. K. Schaffer, K. T. Story, K. Vanderlinde, L. E. Bleem, L. Knox, L. Shaw, M. A. Dobbs, M. Joy, M. Lueker, M. Millea, N. W. Halverson, O. Zahn, R. de Putter, R. Keisler, R. Williamson, S. Dodelson, S. Hoover, S. Padin, S. S. Meyer, T. de Haan, T. E. Montroy, T. M. Crawford, T. Plagge, W. L. Holzapfel, Z. Hou, Z. Staniszewski","submitted_at":"2012-12-26T21:16:00Z","abstract_excerpt":"We explore extensions to the $\\Lambda$CDM cosmology using measurements of the cosmic microwave background (CMB) from the recent SPT-SZ survey, along with data from WMAP7 and measurements of $H_0$ and BAO. We check for consistency within $\\Lambda$CDM between these datasets, and find some tension. The CMB alone gives weak support to physics beyond $\\Lambda$CDM, due to a slight trend relative to $\\Lambda$CDM of decreasing power towards smaller angular scales. While it may be due to statistical fluctuation, this trend could also be explained by several extensions. 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