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Dark Matter from freeze-in and its inhomogeneities
Alessandro Strumia
We consider generic freeze-in processes for generation of Dark Matter, together with the consequent re-thermalization of the Standard Model fluid. We find that Dark Matter inherits…
Black holes don't source fast Higgs vacuum decay
Alessandro Strumia
We argue that the rate of Standard Model vacuum or thermal decay seeded by primordial black holes is negligible (because non-perturbatively suppressed by the small quartic Higgs co…
Higgstory repeats itself
Alessandro Strumia, Nikolaos Tetradis
We consider a scalar potential with two minima, one of which is arbitrarily deep, such as could be the case for the Higgs potential in the Standard Model. A recent calculation with…
Dark Matter-Induced Multi-Phase Dynamical Symmetry Breaking
Kristjan Kannike, Niko Koivunen, Aleksei Kubarski +4
We consider the classically scale invariant Higgs-dilaton model of dynamical symmetry breaking extended with an extra scalar field that plays the role of dark matter. The Higgs bos…
Interpreting electroweak precision data including the -mass CDF anomaly
Alessandro Strumia
We perform a global fit of electroweak data, finding that the anomaly in the mass claimed by the CDF collaboration can be reproduced as a universal new-physics correction to th…
The collider landscape: which collider for establishing the SM instability?
Roberto Franceschini, Alessandro Strumia, Andrea Wulzer
Capabilities of future colliders are usually discussed assuming specific hypothetical new physics. We consider the opposite possibility: that no new physics is accessible, and we w…