Naturalness, Hierarchy, and Fine Tuning

Session

Wednesday Afternoon

28 Feb 2018, 14:30

SuperC (Generali-Saal) (Aachen)

22. On the Hierarchy Problem and the Cosmological Constant Problem in the Standard Model

Fred Jegerlehner (DESY Zeuthen/Humboldt Univ. Berlin)

28/02/2018, 14:30

I argue that the SM in the Higgs phase does not suffer form a
hierarchy problem'' and that similarly thecosmological constant
problem'' resolves itself if we understand the SM as a low energy
effective theory emerging from a cut-off medium at the Planck scale.
We discuss these issues under the condition of a stable Higgs vacuum,
which allows to extend the SM up to the Planck length. The...

10. Discussion

28/02/2018, 15:10

31. Naturalness as a Value of Theory Preference

Michael Stöltzner (USC)

28/02/2018, 15:30

The principle of naturalness seems to be a mysterious dweller in the edifice of contemporary particle physics. It has been given different formulations that were aptly dissected by philosophers. But the community itself seems to consider the naturalness problem as a largely coherent guide for model builders. As such, naturalness has come under pressure through the observation of the Higgs...

9. Discussion

28/02/2018, 16:10

30. Naturalness - How Religion Turned into Math

Sabine Hossenfelder

28/02/2018, 16:50

Naturalness arguments have been extremely influential
in the foundations of physics during the last decades.
I explain why they are based on faulty reasoning.

15. Discussion

28/02/2018, 17:30