From Branes at Singularities to Particle Physics

Details From Branes at Singularities to Particle Physics From Branes at Singularities to Particle Physics

Dec 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002nmgm.meet.1181a&link_type=abstract

"THE NINTH MARCEL GROSSMANN MEETING On Recent Developments in Theoretical and Experimental General Relativity, Gravitation and R

Physics

Scientific paper

We propose a bottom-up approach to particle physics model building from string theory, by using configurations of Type IIB D3- and D7-branes located at singularities, properly combined to reproduce phenomenologically desirable features. We construct brane configurations at ZN orbifold singularities leading to three-family SM or LR symmetric gauge sectors, and discuss their phenomenological features. By embedding the above local structures into compact models, one obtains large classes of D = 4 realistic string models, with gravity mediated supersymmetry breaking, unbroken supersymmetry, or non-supersymmetric SM sectors.

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