Velocity recostruction with graph neural networks

Kavli Affiliate: Jia Liu | First 5 Authors: Hideki Tanimura, Albert Bonnefous, Jia Liu, Sanmay Ganguly, | Summary: In this work, we seek to improve the velocity reconstruction of clusters by using Graph Neural Networks — a type of deep neural network designed to analyze sparse, unstructured data. In comparison to the Convolutional Neural Network […]


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Revisiting formation of primordial black holes in a supercooled first-order phase transition

Kavli Affiliate: Misao Sasaki | First 5 Authors: Marcos M. Flores, Alexander Kusenko, Misao Sasaki, , | Summary: We reexamine production of primordial black holes in a supercooled phase transition. While a mere overdensity associated with a surviving false-vacuum patch does not imply formation of a black hole, it is possible for such a patch […]


Continue.. Revisiting formation of primordial black holes in a supercooled first-order phase transition

Revisiting formation of primordial black holes in a supercooled first-order phase transition

Kavli Affiliate: Misao Sasaki | First 5 Authors: Marcos M. Flores, Alexander Kusenko, Misao Sasaki, , | Summary: We reexamine production of primordial black holes in a supercooled phase transition. While a mere overdensity associated with a surviving false-vacuum patch does not imply formation of a black hole, it is possible for such a patch […]


Continue.. Revisiting formation of primordial black holes in a supercooled first-order phase transition

Affleck-Dine leptogenesis scenario for resonant production of sterile neutrino dark matter

Kavli Affiliate: Masahiro Kawasaki | First 5 Authors: Kentaro Kasai, Masahiro Kawasaki, Kai Murai, , | Summary: Sterile neutrino is a fascinating candidate for dark matter. In this paper, we examine the Affleck-Dine (AD) leptogenesis scenario generating a large lepton asymmetry, which can induce the resonant production of sterile neutrino dark matter via the Shi-Fuller […]


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Affleck-Dine leptogenesis scenario for resonant production of sterile neutrino dark matter

Kavli Affiliate: Masahiro Kawasaki | First 5 Authors: Kentaro Kasai, Masahiro Kawasaki, Kai Murai, , | Summary: Sterile neutrino is a fascinating candidate for dark matter. In this paper, we examine the Affleck-Dine (AD) leptogenesis scenario generating a large lepton asymmetry, which can induce the resonant production of sterile neutrino dark matter via the Shi-Fuller […]


Continue.. Affleck-Dine leptogenesis scenario for resonant production of sterile neutrino dark matter

Affleck-Dine leptogenesis scenario for resonant production of sterile neutrino dark matter

Kavli Affiliate: Masahiro Kawasaki | First 5 Authors: Kentaro Kasai, Masahiro Kawasaki, Kai Murai, , | Summary: Sterile neutrino is a fascinating candidate for dark matter. In this paper, we examine the Affleck-Dine (AD) leptogenesis scenario generating a large lepton asymmetry, which can induce the resonant production of sterile neutrino dark matter via the Shi-Fuller […]


Continue.. Affleck-Dine leptogenesis scenario for resonant production of sterile neutrino dark matter

The Simons Observatory: Development and Optical Evaluation of Achromatic Half-Wave Plates

Kavli Affiliate: Tomotake Matsumura | First 5 Authors: Junna Sugiyama, Tomoki Terasaki, Kana Sakaguri, Bryce Bixler, Yuki Sakurai | Summary: The Simons Observatory (SO) experiment is a cosmic microwave background (CMB) experiment located in the Atacama Desert, Chile. The SO’ s small aperture telescopes (SATs) consist of three telescopes designed for precise CMB polarimetry at […]


Continue.. The Simons Observatory: Development and Optical Evaluation of Achromatic Half-Wave Plates

The Simons Observatory: Development and Optical Evaluation of Achromatic Half-Wave Plates

Kavli Affiliate: Tomotake Matsumura | First 5 Authors: Junna Sugiyama, Tomoki Terasaki, Kana Sakaguri, Bryce Bixler, Yuki Sakurai | Summary: The Simons Observatory (SO) experiment is a cosmic microwave background (CMB) experiment located in the Atacama Desert, Chile. The SO’ s small aperture telescopes (SATs) consist of three telescopes designed for precise CMB polarimetry at […]


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Constraining neutrino-DM interactions with Milky Way dwarf spheroidals and supernova neutrinos

Kavli Affiliate: Satoshi Shirai | First 5 Authors: Sean Heston, Shunsaku Horiuchi, Satoshi Shirai, , | Summary: We constrain the neutrino-dark matter cross section using properties of the dark matter density profiles of Milky Way dwarf spheroidal galaxies. The constraint arises from core-collapse supernova neutrinos scattering on dark matter as a form of energy injection, […]


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Robust inference of the Galactic centre gamma-ray excess spatial properties

Kavli Affiliate: Shunsaku Horiuchi | First 5 Authors: Deheng Song, Christopher Eckner, Chris Gordon, Francesca Calore, Oscar Macias | Summary: The gamma-ray Fermi-LAT Galactic centre excess (GCE) has puzzled scientists for over 15 years. Despite ongoing debates about its properties, and especially its spatial distribution, its nature remains elusive. We scrutinize how the estimated spatial […]


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