This review article provides a pedagogical introduction into various classes of chiral string
compactifications to four dimensions with D-branes and fluxes. The main concern is to …

▪ Abstract We provide a pedagogical introduction to a recently studied class of
phenomenologically interesting string models known as Intersecting D-Brane Models. The …

This paper is a review of the present status of neutrino mass physics, which grew out of an
APS sponsored study of neutrinos in 2004. After a discussion of the present knowledge of …

This review is devoted to open strings, and in particular to the often surprising features of
their spectra. It follows and summarizes developments that took place mainly at the …

We study the spectrum of open strings on AdS2 branes in AdS3 in an NS–NS background,
using the SL (2, R) WZW model. When the brane carries no fundamental string charge, the …

We compute Yukawa couplings involving chiral matter fields in toroidal compactifications of
higher dimensional super-Yang-Mills theory with magnetic fluxes. Specifically we focus on …

We construct the first three family N= 1 supersymmetric string model with standard model
gauge group SU (3) C× SU (2) L× U (1) Y from an orientifold of type IIA theory on T 6/(Z 2× Z …

Amid all candidates of physics beyond the Standard Model, string theory provides a unique
proposal for incorporating gauge and gravitational interactions. In string theory, a four …

A bstract We argue that the Standard Model quiver can be embedded into compact Calabi-
Yau geometries through orientifolded D3-branes at del Pezzo singularities dP n with n≥ 5 in …

Finding a plausible origin for right-handed neutrino Majorana masses in semirealistic
compactifications of string theory remains one of the most difficult problems in string …