Seminar series
Date
Mon, 21 Jan 2008
Time
11:00 -
12:00
Location
L3
Speaker
Joseph Conlon
Organisation
Cambridge
Abstract: I show that the effective action of string compactifications has astructure
that can naturally solve the supersymmetric flavour and CP problems. At leading order
in the $g_s$ and $\alpha'$ expansions, the hidden sector factorises. The moduli space splits into
two mirror parts that depend on K\"ahler and complex structure moduli. Holomorphy
implies the flavour structure of the Yukawa couplings arises in only one part. In type
IIA string theory flavour arises through the K\"ahler moduli sector and in type IIB flavour
arises through the complex structure moduli sector. This factorisation gives a simple
solution to the supersymmetric flavour and CP problems: flavour physics is generated in
one sector while supersymmetry is broken in the mirror sector. This mechanism does not
require the presence of gauge, gaugino or anomaly mediation and is explicitly realised by
phenomenological models of IIB flux compactifications.