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Evidence for the Multiverse in the Standard Model and Beyond
Lawrence J. Hall, Yasunori Nomura
In any theory it is unnatural if the observed parameters lie very close to special values that determine the existence of complex structures necessary for observers. A naturalness…
An alternative NMSSM phenomenology with manifest perturbative unification
Riccardo Barbieri, Lawrence J. Hall, Anastasios Y. Papaioannou +2
Can supersymmetric models with a moderate stop mass be made consistent with the negative Higgs boson searches at LEP, while keeping perturbative unification manifest? The NMSSM ach…
Statistical Understanding of Quark and Lepton Masses in Gaussian Landscapes
Lawrence J. Hall, Michael P. Salem, Taizan Watari
The fundamental theory of nature may allow a large landscape of vacua. Even if the theory contains a unified gauge symmetry, the 22 flavor parameters of the Standard Model, includi…
Quark and Lepton Masses from Gaussian Landscapes
Lawrence J. Hall, Michael P. Salem, Taizan Watari
The flavor structure of the Standard Model might arise from random selection on a landscape. We propose a class of simple models, ``Gaussian landscapes,'' where Yukawa couplings de…
LHC and Dark Matter Signals of Improved Naturalness
R. Enberg, P. J. Fox, L. J. Hall +2
The Standard Model Higgs suffers from the hierarchy problem, typically implying new states within the reach of the LHC. If the Higgs is very heavy (~500 GeV) the states that cutoff…