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SUMMARY:John Rizos (Ioannina U.)
DTSTART:20210706T100000Z
DTEND:20210706T110000Z
DTSTAMP:20260513T204330Z
UID:CCTP_HEP/56
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/CCTP_HEP/56/
 ">On nonsupersymmetric string models and the decompactification problem</a
 >\nby John Rizos (Ioannina U.) as part of CCTP HEP Seminars\n\n\nAbstract\
 nWe study 4d heterotic string compactifications exhibiting\nspontaneous su
 persymmetry breaking via the Scherk–Schwarz mechanism\nassociated with t
 wo large internal dimensions. We identify a class of\nmodels with fermion
 –boson degeneracy that address some central issues in\nnonsupersymmetric
  string phenomenology including the elimination of\ntachyons and dilaton t
 adpoles and the suppression of the cosmological\nconstant. In addition\, w
 e propose a novel solution to the\ndecompactification problem related to t
 he cancellation of the linear\ngrowth of the gauge part of the thresholds 
 with a similar growth of the\nuniversal part.\n
LOCATION:https://researchseminars.org/talk/CCTP_HEP/56/
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