Kavli Affiliate: Toshiyuki Kobayashi | First 5 Authors: Toshiyuki Kobayashi, , , , | Summary: This exposition presents recent developments on proper actions, highlighting their connections to representation theory. It begins with geometric aspects, including criteria for the properness of homogeneous spaces in the setting of reductive groups. We then explore the interplay between the […]
Kavli Affiliate: Alexander Ji | First 5 Authors: Ilija Medan, Tom Dwelly, Kevin R. Covey, Eleonora Zari, Michael R. Blanton | Summary: One crucial aspect of planning any large scale astronomical survey is constructing an observing strategy that maximizes reduced data quality. This is especially important for surveys that are rather heterogeneous and broad-ranging in […]
Kavli Affiliate: T. Higuchi | First 5 Authors: Belle II Collaboration, I. Adachi, K. Adamczyk, L. Aggarwal, H. Ahmed | Summary: We present a determination of the Cabibbo-Kobayashi-Maskawa matrix element $|V_{cb}|$ from the decay $Bto Dellnu_ell$ using a $365~mathrm{fb}^{-1}$ $e^+e^-toUpsilon(4S)to Bbar B$ data sample recorded by the Belle II experiment at the SuperKEKB collider. The […]
Kavli Affiliate: Satoshi Shirai | First 5 Authors: Akifumi Chitose, Masahiro Ibe, Satoshi Shirai, Yaxuan Wen, | Summary: We investigate cosmic strings arising from a hierarchical gauge symmetry breaking sequence, $mathrm{SU}(2) times mathrm{U}(1) rightarrow mathrm{U}(1) times mathrm{U}(1) rightarrow mathrm{U}(1)’ rightarrow text{Nothing}$. This pattern gives rise to two distinct classes of cosmic strings: light, stable strings […]
Kavli Affiliate: Yi Zhou | First 5 Authors: Chen Pang, Yi Zhou, , , | Summary: We present a self-consistent theory to calculate the static and uniform spin susceptibility in superconductors under simultaneous Zeeman magnetic fields and Rashba-type spin-orbit coupling (SOC). Employing a single-band Bogoliubov-de Gennes Hamiltonian, we solve the gap equation for both conventional […]
Kavli Affiliate: Ran Wang | First 5 Authors: Yuxuan Wu, Tao Wang, Daizhong Liu, Qinghua Tan, Luis C. Ho | Summary: A significant population of quasars have been found to exist within the first Gyr of cosmic time. Most of them have high black hole (BH) masses ($M_{rm BH} sim 10^{8-10} M_{odot}$) with an elevated […]
Kavli Affiliate: Hitoshi Murayama | First 5 Authors: Csaba Csáki, Teruhiko Kawano, Hitoshi Murayama, Ofri Telem, | Summary: We calculate the $theta$ dependence in a cousin of QCD, where the vacuum structure can be analyzed exactly. The theory is $mathcal{N}=2$ $SU(2)$ gauge theory with $N_F=0,1,2,3$ flavors of fundamentals, explicitly broken to $mathcal{N}=1$ via an adjoint […]
Kavli Affiliate: Subo Dong | First 5 Authors: Evan Jennerjahn, Michael A. Tucker, Benjamin J. Shappee, Christopher S. Kochanek, Subo Dong | Summary: The ASAS-SN Low Surface Brightness Survey utilizes the $sim7$ years of g-band CCD data from ASAS-SN (The All-Sky Automated Survey for Supernovae) to create stacked images of the entire sky. It is […]
Kavli Affiliate: Roberto Maiolino | First 5 Authors: Francesco D’Eugenio, Ignas Juodžbalis, Xihan Ji, Jan Scholtz, Roberto Maiolino | Summary: We present a broad-line active galactic nucleus (AGN) at z = 5.077, observed with both NIRSpec/MSA and NIRSpec/IFU by the JADES and BlackTHUNDER surveys. The target exhibits all the hallmark features of a ‘Little Red […]
Kavli Affiliate: David Kleinfeld | Authors: Sangcheon Choi, Gabriel Hoffmann, Sebastian Schneider, Stephan Kaczmarz, David Kleinfeld, Xin Yu, Christian Sorg and Christine Preibisch | Summary: Vasomotor dynamics at the infra-slow frequencies (~0.1 Hz), driven by synchronized oscillation of smooth muscle cells in vessel walls, play an important role in regulating cerebral perfusion and constitute a […]