223 citations · 540 across the 7 of their papers we have counts for
7 papers
Axion Kinetic Misalignment and Parametric Resonance from Inflation
Raymond T. Co, Lawrence J. Hall, Keisuke Harigaya +2
Axion cold dark matter from standard misalignment typically requires a decay constant GeV. Kinetic misalignment and parametric resonance easily allow lower va…
Axion Kinetic Misalignment Mechanism
Raymond T. Co, Lawrence J. Hall, Keisuke Harigaya
In the conventional misalignment mechanism, the axion field has a constant initial field value in the early universe and later begins to oscillate. We present an alternative scenar…
Multiverse Understanding of Cosmological Coincidences
Raphael Bousso, Lawrence J. Hall, Yasunori Nomura
There is a deep cosmological mystery: although dependent on very different underlying physics, the timescales of structure formation, of galaxy cooling (both radiatively and agains…
Nearly Degenerate Neutrinos and Broken Flavour Symmetry
Riccardo Barbieri, Lawrence J. Hall, G. L. Kane +1
Theories with non-Abelian flavour symmetries lead at zeroth order to neutrino degeneracy and massless charged fermions. The flavour symmetry is spontaneously broken sequentially to…
U(2) and Maximal Mixing of nu_{mu}
Lawrence J. Hall, Neal Weiner
A U(2) flavor symmetry can successfully describe the charged fermion masses and mixings, and supress SUSY FCNC processes, making it a viable candidate for a theory of flavor. We sh…
Probing Lepton Flavor Violation at Future Colliders
N. Arkani-Hamed, H. -C. Cheng, J. L. Feng +1
Supersymmetric theories with significant lepton flavor violation have and nearly degenerate. In this case, pair production of and $\…