Cosmology of generalized modified gravity models

Sean M. Carroll^1,*, Antonio De Felice^2,†, Vikram Duvvuri^1,‡, Damien A. Easson^2,§, Mark Trodden^2,**, and Michael S. Turner^{1,3,4,††
1}Enrico Fermi Institute, Department of Physics, and Kavli Institute for Cosmological Physics, University of Chicago, 5640 S. Ellis Avenue, Chicago, Illinois 60637-1433, USA
²Department of Physics, Syracuse University, Syracuse, New York 13244-1130, USA
³Department of Astronomy & Astrophysics, University of Chicago, Chicago, Illinois 60637-1433, USA
⁴NASA/Fermilab Astrophysics Center, Fermi National Accelerator Laboratory, Batavia, Illinois 60510-0500, USA

^*carroll@theory.uchicago.edu

^†defelice@physics.syr.edu

^‡duvvuri@theory.uchicago.edu

^§easson@physics.syr.edu

^**trodden@physics.syr.edu

^††mturner@oddjob.uchicago.edu