What to do in physics when “everything else fails”

10. Subtract Infinity 9. Add heavy fermions 8. Set all fermion masses to zero 7. Invent another symmetry 6. Throw it on the lattice 5. Blame it on the Planck scale 4. Recall the success of the SM 3. Invoke the Anthropic Principle 2. Wave hands a lot, speak with a strong accent 1. Manipulate … Continue reading What to do in physics when “everything else fails”

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The Dark Matter is Out There

In the last 10 years evidence piled up that the largest part of the Universe is not made by ordinary (baryonic) matter. Atoms and neutrinos account to about 5%, while the remaining fraction is partly due to another form of mass that does not interact electromagnetically, called Dark Matter (25%). There are indications that it is … Continue reading The Dark Matter is Out There