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SUMMARY:On fixed points and phase transitions in five dimensions - Frances
 co Mignosa (SISSA)
DTSTART:20220203T130000Z
DTEND:20220203T140000Z
UID:TALK168536@talks.cam.ac.uk
CONTACT:85816
DESCRIPTION:Supersymmetric gauge theories in five dimensions\, although po
 wer counting non-renormalizable\, are known to be in some cases UV complet
 ed by a superconformal field theory. Many tools\, such as M-theory compact
 ification and pq-web constructions\, were used in recent years in order to
  deepen our understanding of these theories. This framework gives us a con
 crete way in which we can try to search for additional IR conformal field 
 theory via deformations of these well-known superconformal fixed points. R
 ecently\, the authors of 2001.00023 proposed a supersymmetry breaking mass
  deformation of the E_1theory which\, at weak gauge coupling\, leads to pu
 re SU(2) Yang-Mills and which was conjectured to lead to an interacting CF
 T at strong coupling. During this talk\, I will provide an explicit geomet
 ric construction of the deformation using brane-web techniques and show th
 at for large enough gauge coupling a global symmetry is spontaneously brok
 en and the theory enters a new phase which\, at infinite coupling\, displa
 ys an instability. The Yang-Mills and the symmetry broken phases are separ
 ated by a phase transition. Quantum corrections to this analysis are discu
 ssed\, as well as possible outlooks. Based on arXiv: 2109.02662.
LOCATION:Online (Zoom)
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