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Vincenzo Branchina (University of Catania)06/10/2023, 11:40
QGSKY - Highlights on Catania Unit research work
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Filippo Contino06/10/2023, 12:00
Due to unsuppressed quantum fluctuations, the Higgs boson mass and the cosmological constant turn out to be extremely sensitive to the UV modes of the underlying high energy theory, and this usually demands an “unnatural” and “formal” fine-tuning. We show that when the Wilsonian EFT paradigm is properly implemented in the theory, a “physical tuning” scenario naturally emerges. This is clearly...
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Arcangelo Pernace (Istituto Nazionale di Fisica Nucleare)06/10/2023, 12:20
When the Higgs effective potential $V_{eff}(\phi)$ and/or the vacuum energy $\rho$ are derived from higher dimensional theories with compact extra dimensions and non-trivial boundary conditions (as in the case of the Scherk-Schwarz SUSY breaking mechanism), the usual calculations lead to the conclusion that these quantities are UV-insensitive. Based on the finite result for $\rho$ and on the...
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Amodio Carleo (Istituto Nazionale di Fisica Nucleare)06/10/2023, 12:40
Non-linear electrodynamics (NLED) is a generalization of Maxwell’s electrodynamics for strong fields. It could have significant implications for the study of black holes and cosmology and have been extensively studied in the literature, extending from quantum to cosmological contexts. Recently, its application to black holes, inflation and dark energy has caught on, being able to provide an...
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Salvatore Capozziello (Università di Napoli "Federico II")06/10/2023, 13:00
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