Snowmass2021 Cosmic Frontier White Paper: Ultraheavy particle dark matter

Kavli Affiliate: Edward Kolb | First 5 Authors: Daniel Carney, Nirmal Raj, Yang Bai, Joshua Berger, Carlos Blanco | Summary: We outline the unique opportunities and challenges in the search for "ultraheavy" dark matter candidates with masses between roughly $10~{rm TeV}$ and the Planck scale $m_{rm pl} approx 10^{16}~{rm TeV}$. This mass range presents a […]


Continue.. Snowmass2021 Cosmic Frontier White Paper: Ultraheavy particle dark matter

Snowmass2021 Cosmic Frontier White Paper: Fundamental Physics and Beyond the Standard Model

Kavli Affiliate: Daniel E. Holz | First 5 Authors: Emanuele Berti, Vitor Cardoso, Zoltán Haiman, Daniel E. Holz, Emil Mottola | Summary: Gravitational wave detectors are formidable tools to explore strong-field gravity, especially black holes and neutron stars. These compact objects are extraordinarily efficient at producing electromagnetic and gravitational radiation. As such, they are ideal […]


Continue.. Snowmass2021 Cosmic Frontier White Paper: Fundamental Physics and Beyond the Standard Model

Snowmass2021 Cosmic Frontier White Paper: Fundamental Physics and Beyond the Standard Model

Kavli Affiliate: Daniel E. Holz | First 5 Authors: Emanuele Berti, Vitor Cardoso, Zoltán Haiman, Daniel E. Holz, Emil Mottola | Summary: Gravitational wave detectors are formidable tools to explore strong-field gravity, especially black holes and neutron stars. These compact objects are extraordinarily efficient at producing electromagnetic and gravitational radiation. As such, they are ideal […]


Continue.. Snowmass2021 Cosmic Frontier White Paper: Fundamental Physics and Beyond the Standard Model

Cosmology Intertwined: A Review of the Particle Physics, Astrophysics, and Cosmology Associated with the Cosmological Tensions and Anomalies

Kavli Affiliate: Eiichiro Komatsu | First 5 Authors: Elcio Abdalla, Guillermo Franco Abellán, Amin Aboubrahim, Adriano Agnello, Ozgur Akarsu | Summary: In this paper we will list a few important goals that need to be addressed in the next decade, also taking into account the current discordances between the different cosmological probes, such as the […]


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QCD Axion Search with ILC Beam Facility

Kavli Affiliate: Satoshi Shirai | First 5 Authors: Hajime Fukuda, Hidetoshi Otono, Satoshi Shirai, , | Summary: One of the most promising methods to search for axions is a light-shining-through-walls (LSW) experiment. In this work, we discuss the possibility of performing an LSW experiment at the ILC experiment, where photon beams are generated for positron […]


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Astrophysics with the Laser Interferometer Space Antenna

Kavli Affiliate: Xian Chen | First 5 Authors: Pau Amaro Seoane, Jeff Andrews, Manuel Arca Sedda, Abbas Askar, Quentin Baghi | Summary: The Laser Interferometer Space Antenna (LISA) will be a transformative experiment for gravitational wave astronomy, and, as such, it will offer unique opportunities to address many key astrophysical questions in a completely novel […]


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Not so fuzzy: excluding FDM with sizes and stellar kinematics of ultra-faint dwarf galaxies

Kavli Affiliate: Andrey Kravtsov | First 5 Authors: Neal Dalal, Andrey Kravtsov, , , | Summary: We use observations of ultra-faint dwarf (UFD) galaxies to constrain the particle mass of ultra-light dark matter. Potential fluctuations created by wave interference in virialized "fuzzy" dark matter (FDM) halos dynamically heat stellar orbits in UFDs, some of which […]


Continue.. Not so fuzzy: excluding FDM with sizes and stellar kinematics of ultra-faint dwarf galaxies

Not so fuzzy: excluding FDM with sizes and stellar kinematics of ultra-faint dwarf galaxies

Kavli Affiliate: Andrey Kravtsov | First 5 Authors: Neal Dalal, Andrey Kravtsov, , , | Summary: We use observations of ultra-faint dwarf (UFD) galaxies to constrain the particle mass of ultra-light dark matter. Potential fluctuations created by wave interference in virialized "fuzzy" dark matter (FDM) halos dynamically heat stellar orbits in UFDs, some of which […]


Continue.. Not so fuzzy: excluding FDM with sizes and stellar kinematics of ultra-faint dwarf galaxies