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BEGIN:VEVENT
DTSTAMP:20260921T003538Z
LAST-MODIFIED:20180321T144017Z
DTSTART:20180329T200000Z
DTEND:20180329T210000Z
UID:event1907@bu.edu
URL:http://physics.bu.edu/internal/events/show/1907
SUMMARY:"Theta in new QCD-like sectors"
DESCRIPTION:Featuring Jonathan Kozaczuk\, University of Massachusetts Amher
	st\n\nPart of the HET Seminar Series.\n\nMany well-motivated extensions of 
	the Standard Model feature vector-like quarks charged both under QCD and a 
	new confining gauge group. In analogy to QCD\, one generally expects a thet
	a term associated with the new "hypercolor" sector. In this talk\, I will d
	iscuss some of the implications of hyper-theta for collider searches\, cosm
	ology\, and the strong CP problem of QCD. The new theta term results in CP-
	violating signatures in the "hyper-meson" sector\, providing novel discover
	y modes at the LHC and future colliders. Additionally\, one of the hyperpio
	ns can be stable\, yielding a viable dark matter candidate with its relic a
	bundance set by CP-violating annihilations. If a new vacuum angle is observ
	ed in these sectors\, it would require the strong CP problem to be solved i
	n the infrared\, constituting an "indirect detection" of the QCD axion.
LOCATION:PRB 595\, 3 Cummington Mall\, 02215
STATUS:CONFIRMED
CLASS:PUBLIC
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