Constraints on axion-like polarization oscillations in the cosmic microwave background with POLARBEAR

Kavli Affiliate: Nobuhiko Katayama | Authors: The POLARBEAR Collaboration: Shunsuke Adachi, Tylor Adkins, Kam Arnold, Carlo Baccigalupi, Darcy Barron, Kolen Cheung, Yuji Chinone, Kevin T. Crowley, Josquin Errard, Giulio Fabbian, Chang Feng, Raphael Flauger, Takuro Fujino, Daniel Green, Masaya Hasegawa, Masashi Hazumi, Daisuke Kaneko, Nobuhiko Katayama, Brian Keating, Akito Kusaka, Adrian T. Lee, Yuto Minami, […]


Continue.. Constraints on axion-like polarization oscillations in the cosmic microwave background with POLARBEAR

Measurement of the branching fraction and CP asymmetry of $B^0 rightarrow π^0 π^0$ decays using 2019-2021 Belle II data

Kavli Affiliate: T. Higuchi | Authors: Belle II Collaboration: F. Abudinén, I. Adachi, K. Adamczyk, L. Aggarwal | Summary: We report measurements of the branching fraction and $CP$ asymmetry in $B^{0} to pi^{0} pi^{0}$ decays reconstructed at Belle II in an electron-positron collision sample containing $198 times 10^{6}$ $Boverline{B}$ pairs. We measure a branching fraction […]


Continue.. Measurement of the branching fraction and CP asymmetry of $B^0 rightarrow π^0 π^0$ decays using 2019-2021 Belle II data

Gravitational wave hints black hole remnants as dark matter

Kavli Affiliate: Misao Sasaki | First 5 Authors: [#item_custom_name[1]], [#item_custom_name[2]], [#item_custom_name[3]], [#item_custom_name[4]], [#item_custom_name[5]] | Summary: The end state of Hawking evaporation of a black hole is uncertain. Some candidate quantum gravity theories, such as loop quantum gravity and asymptotic safe gravity, hint towards Planck sized remnants. If so, the Universe might be filled with remnants […]


Continue.. Gravitational wave hints black hole remnants as dark matter

A broadband X-ray imaging spectroscopy in the 2030s: the FORCE mission

Kavli Affiliate: Tadayuki Takahashi | First 5 Authors: [#item_custom_name[1]], [#item_custom_name[2]], [#item_custom_name[3]], [#item_custom_name[4]], [#item_custom_name[5]] | Summary: In this multi-messenger astronomy era, all the observational probes are improving their sensitivities and overall performance. The Focusing on Relativistic universe and Cosmic Evolution (FORCE) mission, the product of a JAXA/NASA collaboration, will reach a 10 times higher sensitivity in […]


Continue.. A broadband X-ray imaging spectroscopy in the 2030s: the FORCE mission

Non-linear non-renormalization theorems

Kavli Affiliate: Tom Melia | First 5 Authors: [#item_custom_name[1]], [#item_custom_name[2]], [#item_custom_name[3]], [#item_custom_name[4]], [#item_custom_name[5]] | Summary: We study the mixing of operators under renormalization group flow in quantum theories, and prove a non-renormalization theorem at non-linear order. It dictates zeros up to a certain number of loops in anomalous dimension tensors that control, for example, the […]


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New shape of parity-violating graviton non-Gaussianity

Kavli Affiliate: Misao Sasaki | First 5 Authors: [#item_custom_name[1]], [#item_custom_name[2]], [#item_custom_name[3]], [#item_custom_name[4]], [#item_custom_name[5]] | Summary: We show that the general vacuum states that respect the de Sitter symmetry, known as the {alpha}-vacua, can introduce non-vanishing parity-violating tensor non-Gaussianities. This is due to the mixing by the Bogoliubov transformation of the positive and negative frequency modes […]


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PRECISION: Decentralized Constrained Min-Max Learning with Low Communication and Sample Complexities

Kavli Affiliate: Jia Liu | First 5 Authors: [#item_custom_name[1]], [#item_custom_name[2]], [#item_custom_name[3]], [#item_custom_name[4]], [#item_custom_name[5]] | Summary: Recently, min-max optimization problems have received increasing attention due to their wide range of applications in machine learning (ML). However, most existing min-max solution techniques are either single-machine or distributed algorithms coordinated by a central server. In this paper, we […]


Continue.. PRECISION: Decentralized Constrained Min-Max Learning with Low Communication and Sample Complexities

Nucleosynthesis in outflows of compact objects and detection prospects of associated kilonovae

Kavli Affiliate: Shunsaku Horiuchi | First 5 Authors: [#item_custom_name[1]], [#item_custom_name[2]], [#item_custom_name[3]], [#item_custom_name[4]], [#item_custom_name[5]] | Summary: We perform a comparative analysis of nucleosynthesis yields from binary neutron star (BNS) mergers, black hole-neutron star (BHNS) mergers, and core-collapse supernovae (CCSNe) with the goal of determining which are the most dominant sources of r-process enrichment observed in stars. […]


Continue.. Nucleosynthesis in outflows of compact objects and detection prospects of associated kilonovae

Wide-gap CdTe Strip Detectors for High-Resolution Imaging in Hard X-rays

Kavli Affiliate: Tadayuki Takahashi | First 5 Authors: [#item_custom_name[1]], [#item_custom_name[2]], [#item_custom_name[3]], [#item_custom_name[4]], [#item_custom_name[5]] | Summary: We propose a new strip configuration for CdTe X-ray detectors, named "Wide-gap CdTe strip detector", in which the gap between adjacent strips is much wider than the width of each strip. It has been known that the observed energies of […]


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Primordial-tensor-induced stochastic gravitational waves

Kavli Affiliate: Misao Sasaki | First 5 Authors: [#item_custom_name[1]], [#item_custom_name[2]], [#item_custom_name[3]], [#item_custom_name[4]], [#item_custom_name[5]] | Summary: Cosmological stochastic gravitational waves (GWs) induced by a spectator field are usually expected to have an amplitude very small compared with those generated by the curvature perturbation, or equivalently by a field dominating the universe. On the contrary to this […]


Continue.. Primordial-tensor-induced stochastic gravitational waves