BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//RLASKEY//CALENDEROUS//EN
CALSCALE:GREGORIAN
METHOD:PUBLISH
BEGIN:VEVENT
DTSTAMP:20260917T204356Z
LAST-MODIFIED:20141104T154716Z
DTSTART:20141113T173000Z
DTEND:20141113T183000Z
UID:event1315@bu.edu
URL:http://physics.bu.edu/internal/events/show/1315
SUMMARY:From the CMB to fundamental physics - A closer look at n_s and r
DESCRIPTION:Featuring Raphael Flauger\, Carnegie Mellon University\n\nPart 
	of the HET Seminar Series.\n\nAbstract:\nThe cosmic microwave background co
	ntains a wealth of information about\ncosmology as well as high energy phys
	ics. It tells us about the\ncomposition and geometry of the universe\, the 
	properties of neutrinos\,\ndark matter\, and even about the conditions in o
	ur universe long before\nthe cosmic microwave background was emitted. After
	 a brief review of\nwhat we may hope to learn from it about inflation\, I w
	ill review\nmeasurements of the angular power spectrum of temperature\npert
	urbations from Planck data by the Planck collaboration and by\nRenee Hlozek
	\, David Spergel and myself. I will then combine these\nmeasurements with t
	he recent measurement of the polarization of the\ncosmic microwave backgrou
	nd by BICEP2 as well as the measurements of\npolarized emission from dust b
	y the Planck collaboration to derive the\ncurrent constraints on the spectr
	al index of scalar perturbations and\nthe amount of primordial gravitationa
	l waves. I will show that the\ndata now disfavors the simplest model of inf
	lation at 2-3 sigma\ndepending on the choice of likelihood for the temperat
	ure data.
LOCATION:PRB 595\, 3 Cummington Mall\, 02215
STATUS:CONFIRMED
CLASS:PUBLIC
END:VEVENT
END:VCALENDAR