Publications (11)
Is the Dark Disc contribution to Dark Matter Signals important ?
Fu-Sin Ling
Recent N-body simulations indicate that a thick disc of dark matter, co-rotating with the stellar disc, forms in a galactic halo after a merger at a redshift . The existence o…
Correlated Hierarchy, Dirac Masses and Large Mixing Angles
Aseshkrishna Datta, Fu-Sin Ling, Pierre Ramond
We introduce a new parametrization of the MNS lepton mixing matrix which separates the hierarchical Grand Unified relations among quarks and leptons. We argue that one large angle…
Diurnal and Annual Modulation of Cold Dark Matter Signals
Fu-Sin Ling, Pierre Sikivie, Stuart Wick
We calculate the diurnal and annual modulation of the signals in axion and WIMP dark matter detectors on Earth caused by a cold flow of dark matter in the Solar neighborhood. The e…
Heavy Scalar Dark Matter
Fu-Sin Ling
Scalar fields with quantum numbers provide several viable Dark Matter candidates around the TeV scale. Thanks to scalar quartic interactions, the observed relic density c…
Family Hierarchy from Symmetry Breaking
Fu-Sin Ling, Pierre Ramond
We investigate symmetry breaking patterns from replicated gauge groups which generate anomaly-free and family-dependent U(1) symmetries. We discuss the extent to which these symmet…
The Inert Doublet Model and Inelastic Dark Matter
Chiara Arina, Fu-Sin Ling, Michel H. G. Tytgat
The annual modulation observed by DAMA/NaI and DAMA/Libra may be interpreted in terms of elastic or inelastic scattering of dark matter particles. In this paper we confront these t…
See-saw neutrino masses and large mixing angles in the vortex background on a sphere
Jean-Marie Frère, Maxim Libanov, Fu-Sin Ling
In the vortex background on a sphere, a single 6-dimensional fermion family gives rise to 3 zero-modes in the 4-dimensional point of view, which may explain the replication of fami…
A light scalar WIMP through the Higgs portal and CoGeNT
Sarah Andreas, Chiara Arina, Thomas Hambye +2
If dark matter (DM) simply consists in a scalar particle interacting dominantly with the Higgs boson, the ratio of its annihilation cross section ---which is relevant both for the…
Neutrino Mixings and Unified Theories
Fu-Sin Ling
The recent neutrino data converge towards a 3 scheme with two large and one small mixing angles. Their implications for model-building are discussed. Some possible components o…
Neutrino masses and the Cabibbo expansion
Fu-Sin Ling
We adopt a bottom-up approach to reconstruct the possible neutrino mass matrix patterns, in the hypothesis that , where is the Cabibbo angle, is a useful expa…
Family Hierarchy and Large Neutrino Mixings
Fu-Sin Ling, Pierre Ramond
The recent neutrino data seem to favor two large and one small mixing angles and a hierarchy of their squared mass differences. We discuss these within the context of hierarchical…