Discrete gauge symmetries in flux compactifications

 

Mr Mikel Berasaluc
Instituto de F´ısica Te´orica UAM/CSIC

 

10 June 2013 (Wednesday)
3:30 - 4:00 pm
Room 4612 (4/F via Lifts 31-32), HKUST

Abstract:

In particle physics model building discrete symmetries are often invoked to forbid unwanted or dangerous couplings. A classical example is the R-parity of the MSSM, which guarantees the absence of dimension four baryon- and lepton-number violating operators. Although phenomenologically useful, these discrete symmetries are, in the context of field theory, poorly motivated at a more fundamental level. Moreover, discrete global symmetries are expected to be violated in consistent couplings to quantum gravity, while their gauged versions are expected to actually exist. In this talk, the speaker will study several mechanisms to describe discrete gauge symmetries in string theory focusing on abelian and non-abelian discrete symmetries in 4d string compactifications in the presence of fluxes.

 

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The seminar is free and open to the public. No registration is required. Seating is on a first-come first-served basis.

HKUST Jockey Club Institute for Advanced Study
URL: http://ias.ust.hk
Enquiries: ias@ust.hk / 2358 5912

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