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DTSTAMP:20261021T134807Z
LAST-MODIFIED:20150324T171324Z
DTSTART:20150406T183000Z
DTEND:20150406T193000Z
UID:event1430@bu.edu
URL:http://physics.bu.edu/internal/events/show/1430
SUMMARY:Non-Abelian Dark Matter and Dark Radiation
DESCRIPTION:Featuring Gustavo Marques Tavares\n\nPart of the PhD Final Oral
	 Exams.\n\nExamining Committee:\n\nAbstract: Martin Schmaltz\, Andrew Cohen
	\, Pankaj Mehta\, Emanuel Katz\, Edward Kearns\n\nIn this talk I propose a 
	new alternative to the Cold Dark Matter scenario\, in which the dark sector
	 contains a dark matter particle charged under the Standard Model SU(2) gau
	ge group and also charged under an additional SU(N) dark gauge group. I foc
	us on the case in which the dark gauge group has a coupling constant much s
	maller than the Standard Model gauge couplings. In this limit the confineme
	nt scale of the dark sector is negligibly small and the dark gauge bosons a
	re a new type of relativistic degree of freedom during all times in the cos
	mological history. I first briefly describe the changes in the usual search
	es for dark matter that arise because of this additional non-Abelian struct
	ure. After this I discuss the effects of the dark gauge bosons on the Cosmi
	c Microwave Background and also show that the interactions between dark mat
	ter and the dark gauge bosons give rise to a new regime in the evolution of
	 dark matter overdensities. In the end I briefly discuss how this model can
	 help solve current tensions between Planck and Large Scale Structure data.
	\n![Gustavo](/resources/event-image/1430/9b184d5_original)
LOCATION:PRB 595\, 3 Cummington Mall\, 02215
STATUS:CONFIRMED
CLASS:PUBLIC
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