Kavli Affiliate: Masahiro Kawasaki | First 5 Authors: Masahiro Kawasaki, Kai Murai, Fuminobu Takahashi, , | Summary: We study the evolution of Q-balls under a spontaneously broken global $U(1)$ symmetry. Q-balls are stabilized by the conservation of $U(1)$ charge, but when the symmetry is spontaneously broken, the resulting Nambu-Goldstone (NG) boson can carry charge away […]
Kavli Affiliate: Tom Melia | First 5 Authors: Yu Watanabe, Shigeki Matsumoto, Christopher M. Karwin, Tom Melia, Michela Negro | Summary: Light weakly interacting massive particles (WIMPs), whose masses are in the sub-GeV scale, have been attracting more attention due to the negative results searching for traditional WIMPs. The light WIMPs are expected to produce […]
Kavli Affiliate: Shigeki Matsumoto | First 5 Authors: Yu Watanabe, Shigeki Matsumoto, Christopher M. Karwin, Tom Melia, Michela Negro | Summary: Light weakly interacting massive particles (WIMPs), whose masses are in the sub-GeV scale, have been attracting more attention due to the negative results searching for traditional WIMPs. The light WIMPs are expected to produce […]
Kavli Affiliate: Jia Liu | First 5 Authors: Yuyang Zhang, Xinhe Zhang, Jia Liu, Na Li, | Summary: In this paper, we focus on learning linear dynamical systems under noisy observations. In this setting, existing algorithms either yield biased parameter estimates, or suffer from large sample complexities. To address these issues, we adapt the instrumental […]
Kavli Affiliate: John D. Silverman | First 5 Authors: Jia-Lai Kang, Chris Done, Scott Hagen, Mai Liao, Matthew J. Temple | Summary: Accretion flows in both stellar and supermassive black holes show a distinct spectral transition. This is seen directly in binaries and changing look AGN, and also in a recent sample of eROSITA X-ray […]
Kavli Affiliate: Hitoshi Murayama | First 5 Authors: Jacob M. Leedom, Serah Moldovsky, Hitoshi Murayama, , | Summary: There is an ongoing and future experimental program searching for axions as both extensions of the Standard Model and as candidates for the observed dark matter. In this paper, we examine the feasibility of being able to […]
Kavli Affiliate: John D. Silverman | First 5 Authors: Lilan Yang, Jeyhan S. Kartaltepe, Maximilien Franco, Xuheng Ding, Mark J. Achenbach | Summary: We measure galaxy sizes from $2 < z < 10$ using COSMOS-Web, the largest-area JWST imaging survey to date, covering $sim$0.54 deg$^2$. We analyze the rest-frame optical (~5000A) size evolution and its […]
Kavli Affiliate: Shigeki Matsumoto | First 5 Authors: Hiroki Yoneda, Thomas Siegert, Israel Martinez-Castellanos, Savitri Gallego, Chris Karwin | Summary: We present a modified Richardson-Lucy (RL) algorithm tailored for image reconstruction in MeV gamma-ray observations, focusing on its application to the upcoming Compton Spectrometer and Imager (COSI) mission. Our method addresses key challenges in MeV […]
Kavli Affiliate: Hitoshi Murayama | First 5 Authors: André de Gouvêa, Hitoshi Murayama, Mark Palmer, Heidi Schellman, | Summary: In this document we summarize the output of the US community planning exercises for particle physics that were performed between 2020 and 2023 and comment upon progress made since then towards our common scientific goals. This […]
Kavli Affiliate: Jia Liu | First 5 Authors: Ying Zhu, Yifan Liu, Xinyu Yang, Kailai Liu, Xin Hua | Summary: The Artificial Intelligence models pose serious challenges in intensive computing and high-bandwidth communication for conventional electronic circuit-based computing clusters. Silicon photonic technologies, owing to their high speed, low latency, large bandwidth, and complementary metal-oxide-semiconductor compatibility, […]