Conveners
Session 4
- Aleksander Filip Zarnecki (University of Warsaw (PL))
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Shufang Su (University of Arizona)25/05/2022, 16:00
Two Higgs Doublet Models (2HDM) provide a simple framework for new physics models with an extended Higgs sector. The current LHC results, including both direct searches for additional non-Standard Model (SM) Higgs bosons, as well as precision measurements of the SM-like Higgs couplings, already provide strong constraints on the 2HDM parameter spaces. In this paper, we examine those constraints...
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Jan Franciszek Klamka (University of Warsaw (PL))25/05/2022, 16:20
The Inert Doublet Model (IDM) is one of the simplest SM extensions and introduces four new scalar particles: H$^\pm$, A and H; the lightest, H, is stable and hence a natural dark matter (DM) candidate. A set of benchmark points has been proposed, which are consistent with theoretical and experimental constraints and promise detectable signals at future colliders. Prospects for observing pair...
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Triparno Bandyopadhyay25/05/2022, 16:40
Axion-like particles (ALPs) are at the forefront of physics research, especially at the intensity frontier, dealing with light weakly coupled particles. A plethora of different experiments search for signals of the ALP in many different final states using innovative search strategies. We present a different perspective on ALP searches, concentrating on the modifications that such a particle...
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Dr Emidio Gabrielli (Nat. Inst. of Chem.Phys. & Biophys. (EE))25/05/2022, 17:00
We analyze the Z-boson decay $Z \to \gamma ~ X$ into a photon ($\gamma$) plus a hypothetical light boson (X) belonging to a dark or secluded sector. The dark boson is assumed to behave as missing energy in the detector. We consider for X the cases of spin-1 (massless dark-photon), spin-0 (axion-like), and spin-2 (graviton-like) particles and explore the way to untangle its spin origin. All...
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Giacomo CACCIAPAGLIA25/05/2022, 17:20
The Tera-Z phase of future e+e− colliders, FCC-ee and CepC, is a goldmine for exploring Z portal physics. We focus on axion-like particles (ALPs) that can be produced via Z decays with a monochromatic photon. As a template model, we consider composite Higgs models with a light pseudo-scalar that couples through the Wess-Zumino-Witten term to the electroweak gauge bosons. For both photophilic...
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Rebeca Gonzalez Suarez (Uppsala University (SE)), Roberto Franceschini (Rome 3 U.), Aleksander Filip Zarnecki (University of Warsaw (PL))25/05/2022, 17:40