223 citations · 540 across the 10 of their papers we have counts for
10 papers
Fast high-dimensional integration using tensor networks
Sebastian Cassel
The design and application of regression-free tensor network representations for integration is presented. Tensor network methods are demonstrated to outperform Monte Carlo for tes…
Self-accelerating root search and optimisation methods based on rational interpolation
Sebastian Cassel
Iteration methods based on barycentric rational interpolation are derived that exhibit accelerating orders of convergence. For univariate root search, the derivative-free methods a…
Naturalness of electroweak physics within minimal supergravity
S. Cassel
Low energy supersymmetry is motivated by its use as a solution to the hierarchy problem of the electroweak scale. Having motivated this model with naturalness arguments, it is then…
A review of naturalness and dark matter prediction for the Higgs mass in MSSM and beyond
S. Cassel, D. M. Ghilencea
Within a two-loop leading-log approximation, we review the prediction for the lightest Higgs mass (m_h) in the framework of constrained MSSM (CMSSM), derived from the naturalness r…
Fine-tuning implications for complementary dark matter and LHC SUSY searches
S. Cassel, D. M. Ghilencea, S. Kraml +2
The requirement that SUSY should solve the hierarchy problem without undue fine-tuning imposes severe constraints on the new supersymmetric states. With the MSSM spectrum and soft…
Testing SUSY at the LHC: Electroweak and Dark matter fine tuning at two-loop order
S. Cassel, D. M. Ghilencea, G. G. Ross
In the framework of the Constrained Minimal Supersymmetric Standard Model (CMSSM) we evaluate the electroweak fine tuning measure that provides a quantitative test of supersymmetry…
Testing SUSY
S. Cassel, D. M. Ghilencea, G. G. Ross
If SUSY provides a solution to the hierarchy problem then supersymmetric states should not be too heavy. This requirement is quantified by a fine tuning measure that provides a qua…
Sommerfeld factor for arbitrary partial wave processes
S. Cassel
The Sommerfeld factor for arbitrary partial wave processes is derived in the non-relativistic limit. The s-wave and p-wave numerical results are presented for the case of Yukawa in…
Electroweak and Dark Matter Constraints on a Z' in Models with a Hidden Valley
S. Cassel, D. M. Ghilencea, G. G. Ross
We consider current precision electroweak data, Z' searches and dark matter constraints and analyse their implications for an extension of the SM that includes an extra U(1)' massi…
Fine tuning as an indication of physics beyond the MSSM
S. Cassel, D. M. Ghilencea, G. G. Ross
We investigate the amount of fine tuning of the electroweak scale in the presence of new physics beyond the MSSM, parametrized by higher dimensional operators. We show that these s…