PT Journal AU Barenboim, G Park, WI TI New- vs. chaotic- inflations SO Journal of Cosmology and Astroparticle Physics JI J. Cosmol. Astropart. Phys. PY 2016 BP 061 EP 20pp VL 02 IS 2 DI 10.1088/1475-7516/2016/02/061 LA English DE inflation; physics of the early universe; cosmology of theories beyond the SM AB We show that "spiralized" models of new-inflation can be experimentally identified mostly by their positive spectral running in direct contrast with most chaotic-inflation models which have negative runnings typically in the range of O(10(-4)-10(-3)). ER