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  Softly broken conformal symmetry and the stability of the electroweak scale

Chankowski, P. H., Lewandowski, A., Meissner, K., & Nicolai, H. (2015). Softly broken conformal symmetry and the stability of the electroweak scale. Modern Physics Letters A, 30(2): 1550006. doi:10.1142/S0217732315500066.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0018-C289-A Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0024-B8FC-9
Genre: Journal Article

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1404.0548.pdf (Preprint), 138KB
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 Creators:
Chankowski, Piotr H., Author
Lewandowski, Adrian, Author
Meissner, Krzysztof1, Author              
Nicolai, Hermann1, Author              
Affiliations:
1Quantum Gravity & Unified Theories, AEI-Golm, MPI for Gravitational Physics, Max Planck Society, ou_24014              

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Free keywords: High Energy Physics - Phenomenology, hep-ph
 Abstract: We propose a novel possible mechanism to solve the electroweak hierarchy problem. Assuming the existence of a UV complete underlying fundamental theory and treating the cutoff scale $\Lambda$ of the effective theory as a real physical scale we argue that the hierarchy problem would be solved if the coefficient in front of quadratic divergences vanished for some choice of $\Lambda$, and if the effective theory mass parameters fixed at $\Lambda$ by the fundamental theory were hierarchically smaller than $\Lambda$ itself. While this mechanism most probably cannot work in the Standard Model if the scale $\Lambda$ is to be close to the Planck scale, we show that it can work in a minimal extension (Conformal Standard Model) proposed recently for a different implementation of soft conformal symmetry breaking.

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 Dates: 2014-04-0220142015
 Publication Status: Published in print
 Pages: 10
 Publishing info: -
 Table of Contents: -
 Rev. Method: -
 Identifiers: arXiv: 1404.0548
DOI: 10.1142/S0217732315500066
 Degree: -

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Title: Modern Physics Letters A
Source Genre: Journal
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Pages: - Volume / Issue: 30 (2) Sequence Number: 1550006 Start / End Page: - Identifier: -