PPC 2025: XVIII International Conference on Interconnections between Particle Physics and Cosmology

Session

PPC Presentations

Jun 27, 2025, 3:15 PM

Roosevelt Room I (SpringHill Suites Conference Center Deadwood)

Conveners

PPC Presentations: Friday PM: Plenary + Contributed

• Jaret Heise (SDSTA/SURF)

155. Contributed Talk: Probing Heavy Axions in Astrophysical Objects

Takuya Okawa (Washington University in St. Louis)

6/27/25, 3:15 PM

Author and Presenter: Takuya Okawa
Abstract: Hot plasma in astrophysical objects provides an ideal place for the production of heavy axion-like particles (ALPs). We show that a fraction of these ALPs could stream out of the photosphere and subsequently decay into two photons that can be potentially detected on or near the Earth. In particular, we estimate the photon flux originating from the...

163. Contributed Talk: The Theory of Mystery Unifying Quantum and Cosmic Worlds

Md Najiur Rahman

6/27/25, 3:45 PM

Author and Presenter: Md Najiur Rahman

55. Plenary Talk: The Secret Life of WIMP and FIMP dark-matter- Beyond Visible Dimensions

Dipan Sengupta (University of New South Wales)

6/27/25, 4:15 PM

Author and Presenter: Dipan Sengupta
Abstracts: Extra-dimensional models where Kaluza-Klein particles mediate interactions of a dark sector with the Standard Model particles have recently found a renewed interest. This talk will explore some deeper theoretical and phenomenological issues within these set-ups, both in the context of WIMP and FIMP dark matter models. I will demonstrate that...

52. Parallel Talk: Discovering Axion-like Particles (ALPs) Using CMB as a Backlight

Harsh Mehta

6/27/25, 4:45 PM

Author: Harsh Mehta
Co-author: Suvodip Mukherjee
Presenter: Harsh Mehta
Abstract: Axions or axion-like particles (ALPs) are hypothetical particles predicted by various BSM theories, which also make one of the dark matter candidates. If ALPs exist in nature, the CMB photons as they pass through galaxy clusters will convert to ALPs (of mass range 10−14 to 10−11 eV), resulting in a polarized...

156. Parallel Talk: Title TBD

Vladimir Pastushenko

6/27/25, 4:45 PM

Author and Presenter: Vladimir Pastushenko

157. Parallel Talk: Title TBD

Satya Seshavatharam Utpala Venkata

6/27/25, 4:45 PM

Author and Presenter: Satya Seshavatharam Utpala Venkata