A5092885753- Dark Matter and Cosmic Phenomena
- Particle physics theoretical and experimental studies
- Cosmology and Gravitation Theories
- Particle Detector Development and Performance
- Atomic and Subatomic Physics Research
- Black Holes and Theoretical Physics
- Quantum Chromodynamics and Particle Interactions
- Neutrino Physics Research
University of Messina
2024-2025
Istituto Nazionale di Fisica Nucleare, Sezione di Catania
2024-2025
Universitat de Barcelona
2024-2025
Institut Català de Ciències del Clima
2024
Abstract We perform a comprehensive study of the Direct Detection phenomenology singlet Dark Matter t-channel portal models. For that purpose, we present complete one-loop matching onto Heavy Dark-Matter Effective Field Theory, leading to computation loop induced cross-section for both scalar and fermionic candidates. The results are compared with current future bounds from experiments, as well requirement correct relic density.
Weakly Interacting Massive Particles (WIMPs) continue to be considered some of the best-motivated Dark Matter (DM) candidates. No conclusive signal, despite an extensive search program that combines, often in a complementary way, direct, indirect, and collider probes, has been however detected so far. This situation might change near future with advent even larger, multi-ton Direct Detection experiments. We provide here updated review WIMP paradigm, focus on selected models can probed...
We report on a comprehensive study of the Direct Detection phenomenology singlet Dark Matter $t$-channel portal models. For that purpose, we present complete computation loop-induced direct detection cross-section for both scalar and fermionic candidates. by comparing results with current future bounds from experiments requiring correct relic density.
We study freeze-in production of fermionic dark matter mediated by a $Z^\prime$ gauge boson. In particular, we explore the regime Boltzmann-suppressed production, when Standard Model (SM) thermal bath temperature never exceeds mass. The corresponding coupling is then required to be significant, up order one. As result, this class models can probed current and future direct detection experiments.
In this work we illustrate a general framework to describe the LHC phenomenology of extended scalar (and fermion) sectors, with focus on dark matter (DM) physics, based an effective field theory (EFT) non-linearly realized electroweak symmetry. Generalizing Higgs EFT (HEFT), setup allows include generic set new resonances, without need specify their UV origin, that could for example be at interface Standard Model (SM) and DM world. particular, study case fermionic interacting SM via two...
We discuss the possibility of interpreting recent experimental hints in favor a 95 GeV resonance with extensions Standard Model featuring an extra Higgs doublet and SM scalar (<a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:mrow><a:mn>2</a:mn><a:mi>HDM</a:mi><a:mo>+</a:mo><a:mi mathvariant="normal">s</a:mi></a:mrow></a:math>) or pseudoscalar singlet (<d:math xmlns:d="http://www.w3.org/1998/Math/MathML"...
We discuss the possibility of interpreting recent experimental hints, in favour a 95 GeV resonance, with extensions Standard Model featuring an extra Higgs doublet and SM scalar (2HDM+s) or pseudoscalar singlet (2HDM+a). The reproducing anomalies will be compared theoretical constraints on extended sector as well complementary bounds coming from flavour physics other colliders searchers. For both 2HDM+s 2HDM+a we consider generic natural conserving (NFC) customary Type-I, -II, -X -Y...
We perform a comprehensive study of the Direct Detection phenomenology singlet Dark Matter $t$-channel portal models. For that purpose, we present complete one-loop matching onto Heavy Dark-Matter Effective Field Theory, leading to computation loop induced direct detection cross-section for both scalar and fermionic candidates. The results are compared with current future bounds from experiments, as well requirement correct relic density.