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Higgs Stability and the 750 GeV Diphoton Excess
Alberto Salvio, Anupam Mazumdar
We study the implications of a possible unstable particle with mass TeV for the Higgs stability, naturalness and inflation. We pay particular attention to the case $M_X\appr…
Quantum mechanics of 4-derivative theories
Alberto Salvio, Alessandro Strumia
A renormalizable theory of gravity is obtained if the dimension-less 4-derivative kinetic term of the graviton, which classically suffers from negative unbounded energy, admits a s…
Classical and Quantum Initial Conditions for Higgs Inflation
Alberto Salvio, Anupam Mazumdar
We investigate whether Higgs inflation can occur in the Standard Model starting from natural initial conditions or not. The Higgs has a non-minimal coupling to the Ricci scalar. We…
Dynamically Induced Planck Scale and Inflation
Kristjan Kannike, Gert Hütsi, Liberato Pizza +4
Theories where the Planck scale is dynamically generated from dimensionless interactions provide predictive inflationary potentials and super-Planckian field variations. We first s…
Origin of the superconducting state in the collapsed tetragonal phase of KFe2As2
Daniel Guterding, Steffen Backes, Harald O. Jeschke +1
Recently, KFeAs was shown to exhibit a structural phase transition from a tetragonal to a collapsed tetragonal phase under applied pressure of about . Surp…