Naturalness Under Stress
Author:
Preprint
Abstract
Naturalness has for many years been a guiding principle in the search for physics beyond the Standard Model, particularly for understanding the physics of electroweak symmetry breaking. However, the discovery of the Higgs particle at 125 GeV, accompanied by exclusion of many types of new physics expected in natural models has called the principle into question. In addition, apart from the scale of weak interactions, there are other quantities in nature which appear unnaturally small and for which we have no proposal for a natural explanation.We first review the principle, and then discuss some of the conjectures which it has spawned. We then turn to some of the challenges to the naturalness idea and consider alternatives.Keywords
All Related Versions
This publication has 43 references indexed in Scilit:
- The weak scale from BBNJournal of High Energy Physics, 2014
- A natural SUSY Higgs near 125 GeVJournal of High Energy Physics, 2012
- The wasteland of random supergravitiesJournal of High Energy Physics, 2012
- Axions in the landscape and string theoryJournal of High Energy Physics, 2011
- Should squarks be degenerate?Physics Letters B, 1993
- Irrational axions as a solution of the strong CP problem in an eternal universePhysics Letters B, 1991
- Eternally existing self-reproducing chaotic inflanationary universePhysics Letters B, 1986
- Naturally weak CP violationPhysics Letters B, 1984
- Softly broken supersymmetry and SU(5)Nuclear Physics B, 1981
- ber die Selbstenergie des ElektronsThe European Physical Journal A, 1934