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SUMMARY:Gauge fluxes and M5-instantons in F-theory and their Type IIB dual
 s - Weigand\, T (Universitt Heidelberg)
DTSTART:20120628T133500Z
DTEND:20120628T141000Z
UID:TALK38728@talks.cam.ac.uk
CONTACT:Mustapha Amrani
DESCRIPTION:I discuss recent progress in the description of G4 gauge fluxe
 s in F-theory compactifications on Calabi-Yau fourfolds. Such fluxes are i
 mportant from the perspective of F-theory model building\, where gauge flu
 xes are required for example for the generation of chiral matter. An expli
 cit dictionary between a class of factorisable G4 fluxes in certain F-theo
 ry compactifications and corresponding diagonal U(1) fluxes in Type IIB or
 ientifolds sheds new light on the uplift of Type IIB vacua to F-theory. Th
 is global description of gauge fluxes in F-theory also allows for the eval
 uation of selection rules for M5-instantons to contribute to the superpote
 ntial. \n\n
LOCATION:Seminar Room 1\, Newton Institute
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