BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Talks.cam//talks.cam.ac.uk//
X-WR-CALNAME:Talks.cam
BEGIN:VEVENT
SUMMARY:String axions: the hot and the fuzzy - Nicole Righi (King's Colleg
 e London)
DTSTART:20250428T120000Z
DTEND:20250428T130000Z
UID:TALK226336@talks.cam.ac.uk
CONTACT:Thomas Colas
DESCRIPTION:String axions have been proposed as candidates for solving sev
 eral puzzles in cosmology. In this talk\, I will focus on axions as dark m
 atter. After reviewing how string axions can occur in our universe\, I wil
 l provide a string theoretical explanation of dark matter as composed of a
 xions coming from type IIB string theory. Based on the latest bounds\, I w
 ill show how likely it is for dark matter to be composed of such particles
  and in which abundance\, and I will provide predictions on the preferred 
 ranges of masses and decay constants. On the contrary\, requiring the axio
 ns to lie in a particular range of the parameter space imposes constraints
  on the UV theory. I will focus both on the role of moduli stabilization a
 nd the landscape of string vacua. Finally\, I will discuss axion productio
 n at the end of inflation and the implications for the proposed cosmic axi
 on background.
LOCATION:CMS\, Pav. B\, CTC Common Room (B1.19) [Potter Room]
END:VEVENT
END:VCALENDAR