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The "Goldstone Exception" II: Absence of a Higgs Fine-Tuning Problem in the Spontaneously Broken Limit of the Gell Mann Levy Linear Sigma Model: O(4) with PCAC and SU(2)_L with PCAC and Standard Model Quarks and Leptons
Bryan W. Lynn, Glenn D. Starkman, Katherine Freese +1
More than four decades ago, Lee and Symanzik proved that, in the Gell Mann-Levy (GML) model with partially conserved axial-vector currents (PCAC), tadpole renormalization (a Higgs…
First second of leptons
Dominik J. Schwarz, Glenn D. Starkman, Maik Stuke
A poorly constrained parameter in the Standard Model of Cosmology is the lepton asymmetry l = \sum_f l_f=\sum_f(n_f+n_{ν_f})/s. Each flavour asymmetry l_f with f=e, μ, τ is the sum…
WIMP abundance and lepton (flavour) asymmetry
Maik Stuke, Dominik J Schwarz, Glenn Starkman
We investigate how large lepton asymmetries affect the evolution of the early universe at times before big bang nucleosynthesis and in particular how they influence the relic densi…
Retarded Green's Functions In Perturbed Spacetimes For Cosmology and Gravitational Physics
Yi-Zen Chu, Glenn D. Starkman
Electromagnetic and gravitational radiation do not propagate solely on the null cone in a generic curved spacetime. They develop "tails," traveling at all speeds equal to and less…
Bias in low-multipole CMB reconstructions
Craig J. Copi, Dragan Huterer, Dominik J. Schwarz +1
The large-angle, low multipole cosmic microwave background (CMB) provides a unique view of the largest angular scales in the Universe. Study of these scales is hampered by the fact…
Improved constraints on cosmological parameters from SNIa data
M. C. March, R. Trotta, P. Berkes +2
We present a new method based on a Bayesian hierarchical model to extract constraints on cosmological parameters from SNIa data obtained with the SALT-II lightcurve fitter. We demo…