[Theory-seminars] Cake seminar. Wednesday July 2 at 1pm. Room F224/225. Mariana Carrillo-Gonzalez

[Cesar Fernandez-Ramirez]

Theory Center Seminar
Wednesday, July 2, 2014
1:00 p.m.
CEBAF Center, Room F224/225

Mariana Carrillo-Gonzalez
(Instituto de Ciencias Fisicas, Universidad Nacional Autonoma de Mexico, and Jefferson Lab)

"Testing Hybrid Natural Inflation with BICEP2"

BICEP2 possible observation of primordial gravitational waves have been extensively discussed during the past few months since this would be a window to new physics at the scale of 10^16 GeV; this observations could disfavor several well grounded inflationary models, consequently a test of this models with BICEP2 results is of interest. An introduction to inflation and the slow-roll approximation which is used in most of the recent models will be presented; also an explanation of the fine tuning problem in the slow roll approximation and the solution with Natural Inflation. The problems that Natural Inflation faces when trying to accommodate Planck and BICEP2 results will be shown. And finally a discussion on how the model of Hybrid Natural Inflation could be a better alternative to fit BICEP2 observations of gravitational waves and what happens at the maximum of the tensor index is presented.


-- 
César Fernández-Ramírez

Theory Center -- Jefferson Lab
12000 Jefferson Ave., Newport News, VA 23606, USA

Phone: (+1) 757-269-7844
Fax: (+1) 757-269-7002
E-mail: cesar at jlab.org