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Symmetry Webinar | Hidden Dark Sector in High Energy Physics

5 Oct 2023, 16:00 (CEST)

High Energy Collider Physics, LHC, Hidden Dark Sector, Exotic Higgs Decays, Dark Photon, Dark Matter DM, Beyond the Standard Model BSM
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Welcome from the Chair

11th Symmetry Webinar

Hidden Dark Sector in High Energy Physics

Dear all, the MDPI Symmetry webinar on the “Hidden Dark Sector in High Energy Physics” will discuss topics from high energy physics based on some selected articles published in the Symmetry Special Issue (SI) with the same title.

The Standard Model (SM), while extremely powerful as a description of strong, electromagnetic and weak interactions, is not a natural candidate to explain dark matter. Theoretical and experimental motivations exist for the existence of a hidden or dark sector of phenomena that couples either weakly or in a special way to SM fields. Hidden sectors near the weak scale are motivated by naturalness, thermal dark matter and electroweak baryogenesis but also represent a generic expectation for physics beyond the SM (BSM). If there is such a family of particles and interactions, they may be accessible experimentally at the Large Hadron Collider (LHC) at CERN and at future high energy colliders. As a prototypical hidden sector can be considered, there is the compelling possibility of an exact or spontaneously broken U(1) dark gauge symmetry, mediated by a vector boson called the dark photon. The search for such a hidden sector is an important component of the LHC physics program. The LHC provides a unique tool to explore such models where these new states can be produced using, for example, exotic Higgs boson decays to light scalars or light vectors and inclusive dark photon decays or associated productions as a portal to this hidden or dark sector, which has remained inaccessible up to now.

Date: 05 October 2023

Time: 4:00 pm CEST | 10:00 am EDT | 10:00 pm CST Asia

Webinar ID: 820 0416 0606

Webinar Secretariat:

Webinar Content

In this section, you will find the recordings of this webinar to watch, re-watch and share with your colleagues!

Event Chair

CERN-EP, Espl. des Particules 1, 1211 Meyrin, Switzerland

Affiliation: CERN-EP, Name: Theodota Lagouri, Nationality: Greek, Research Scientist: Experimental High Energy Physics, PhD: Aristotle University of Thessaloniki (Greece), Marie-Curie Fellowships: Max-Planck Institut für Physik, Munich, (Germany), Aristotle University of Thessaloniki (Greece), Charles University, Prague, (Czech), Recent Posts: CERN, Geneva (Switzerland)/UAM (Spain)/Yale University (US)/Wits University (SA)/UTA (CL)

Keynote Speakers

Department of Physics, Yale University, New Haven, CT 06520, USA

Professor Baker’s research is in experimental particle physics: The energy frontier at the Large Hadron Collider in the ATLAS collaboration and precision studies at sub-eV energies. Current topics include quantum information science in HEP, electroweak symmetry breaking, and beyond the standard model physics searches.

Dipartimento di Fisica Teorica, Università di Trieste, Strada Costiera 11, I-34151 Trieste, Italy

Emidio Gabrielli is Associate Professor at the Department of Physics, University of Trieste, Italy. Emidio does research in the sector of Theory and Phenomenology of Elementary Particle Physics.

Albert Ludwigs Universitaet Freiburg

Spyros Argyropoulos is principal investigator of an Emmy Noether young investigator group funded by the German Research Society. As a member of the ATLAS collaboration he is searching for physics beyond the Standard Model at the LHC, with a focus on dark sector models.

Department of Physics, The George Washington University, Washington, United States

Andrei Afanasev currently leads the physics effort for the GWU energy initiative. He has made significant research contributions in the field of nuclear and particle physics probed with high-power electron accelerators and free-electron lasers. Presently Prof. Afanasev contributes to energy research in three areas: (a) High-power particle accelerators that may serve as drivers for accelerator-driven subcritical nuclear reactors (ADSR), as well as probes of new materials for energy applications; (b) Development of novel techniques in photovoltaics, including nanostructures, quantum dots, and surface acoustic waves; (c) New technologies for non-proliferation of nuclear materials. Prof. Afanasev is the Director of the Photoemission Research Laboratory where new solutions for particle accelerator sources and photovoltaics are being developed and tested.



Presentation Title

Time in CEST

Time in EDT

Dr. Theodota Lagouri


Chair Introduction

4:00 - 4:10 pm

10:00 – 10:10 am

Prof. Keith Baker

Yale University


4:10 - 4:30 pm

10:10 – 10:30 am

Q&A Session 1

4:30 - 4:35 pm

10:30 – 10:35 am

Prof. Emidio Gabrielli

Università di Trieste

Higgs Boson as a Portal to Dark Photons at the LHC and Beyond

4:35 - 4:55 pm

10:35 – 10:55 am

Q&A Session 2

4:55 - 5:00 pm

10:55 – 11:00 am

Dr. Spyros Argyropoulos

Albert Ludwigs Universitaet Freiburg

Collider Searches for Dark Matter through the Higgs Lens

5:00 - 5:20 pm

11:00 – 11:20 am

Q&A Session 3

5:20 - 5:25pm

11:20 – 10:10 am

Prof. Dr. Andrei Afanasev

The George Washington University


5:25 - 5:45 pm

10:00 – 10:10 am

Q&A Session 4

5:45 - 5:50 pm

10:00 – 10:10 am

Dr. Theodota Lagouri


Closing of Webinar

5:50 - 6:00 pm

10:00 – 10:10 am

Relevant Special Issues

"Hidden Dark Sector in High Energy Physics"

Edited by Theodota Lagouri
Deadline for manuscript submissions: 31 December 2023

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