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PPPC 4 DM: A Poor Particle Physicist Cookbook for Neutrinos from DM annihilations in the Sun
Pietro Baratella, Marco Cirelli, Andi Hektor +3
We provide ingredients and recipes for computing neutrino signals of TeV-scale Dark Matter annihilations in the Sun. For each annihilation channel and DM mass we present the energy…
Thermal axion production
Alberto Salvio, Alessandro Strumia, Wei Xue
We reconsider thermal production of axions in the early universe, including axion couplings to all Standard Model (SM) particles. Concerning the axion coupling to gluons, we find t…
The cosmic-ray positron excess from a local Dark Matter over-density
A. Hektor, M. Raidal, A. Strumia +1
We show that the cosmic-ray positron excess measured by PAMELA and AMS could be induced by Dark Matter annihilations in a local over-density. In such a context leptophilic DM is no…
Investigating the near-criticality of the Higgs boson
Dario Buttazzo, Giuseppe Degrassi, Pier Paolo Giardino +4
We extract from data the parameters of the Higgs potential, the top Yukawa coupling and the electroweak gauge couplings with full 2-loop NNLO precision, and we extrapolate the SM p…
Dynamical generation of the weak and Dark Matter scale
Thomas Hambye, Alessandro Strumia
Assuming that naturalness should be modified by ignoring quadratic divergences, we propose a simple extension of the Standard Model where the weak scale is dynamically generated to…
A modified naturalness principle and its experimental tests
Marco Farina, Duccio Pappadopulo, Alessandro Strumia
Motivated by LHC results, we modify the usual criterion for naturalness by ignoring the uncomputable power divergences. The Standard Model satisfies the modified criterion ('finite…