Explanipedia

Guided acoustic-wave Brillouin scattering noise in few-mode fiber Open

Masato Yoshida, T. Yoshida, Shohei Beppu, Yuta Wakayama, Noboru Yoshikane , et al. · 2025

We describe theoretical and experimental analyses of guided acoustic wave Brillouin scattering (GAWBS) noise in few-mode fiber (FMF). First, we theoretically show the mechanism of GAWBS noise generation through mode-coupling between differ…

Guided acoustic-wave Brillouin scattering noise in few-mode fiber Open

Masato Yoshida, T. Yoshida, Shohei Beppu, Yuta Wakayama, Noboru Yoshikane , et al. · 2025

We describe theoretical and experimental analyses of guided acoustic wave Brillouin scattering (GAWBS) noise in few-mode fiber (FMF). First, we theoretically show the mechanism of GAWBS noise generation through mode-coupling between differ…

Duration of bundle release by Acropora aff. tenuis corals in the field Open

Go Suzuki, Satokuni Tashiro, Yuri Suhara, Taichi Shigemura, Wataru Fujiie , et al. · 2025

Simultaneous mass spawning is an essential reproductive strategy for maintaining zooxanthellate coral populations, but many of the details remain unclear. Most corals that participate in simultaneous mass spawning are hermaphrodites, and t…

GAPS contributions to the 38th International Cosmic Ray Conference (Nagoya 2023) Open

T. Aramaki, M. Boezio, S. E. Boggs, V. Bonvicini, Gabriel Bridges , et al. · 2023

Compilation of papers presented by the GAPS Collaboration at the 38th International Cosmic Ray Conference (ICRC), held July 26 through August 3, 2023 in Nagoya, Japan.

The GAPS Time-of-Flight Detector Open

S. Feldman, T. Aramaki, M. Boezio, Steven Boggs, V. Bonvicini , et al. · 2023

The General Antiparticle Spectrometer (GAPS) Antarctic long duration balloon mission is scheduled for launch during the austral summer of 2024-25. Its novel detection technique, based on exotic atom formation, excitation, and decay, is spe…

Need for Dissemination of Safe and Correct Pulse Oximeter Use to Non-Healthcare Professionals Suggested by Results of Japan Nationwide Survey Open

Hirohito Imada, S. Matsuda, T. Yoshida, Keizo Wauchi · 2023

Objective: To investigate the correct and safe use of pulse oximeters by the public and to contribute to their safe use in the future.

New Particle Identification Approach with Convolutional Neural Networks in GAPS Open

M. Yamatani, Yusuke Nakagami, H. Fuke, A. Kawachi, M. Kozai , et al. · 2022

The General Antiparticle Spectrometer (GAPS) is a balloon-borne experiment that aims to measure low-energy cosmic-ray antiparticles. GAPS has developed a new antiparticle identification technique based on exotic atom formation caused by in…

Sensitivity of the GAPS experiment to low-energy cosmic-ray antiprotons Open

F. Rogers, T. Aramaki, M. Boezio, Steven Boggs, V. Bonvicini , et al. · 2022

Sensitivity of the GAPS Experiment to Low-energy Cosmic-ray Antiprotons Open

F. Rogers, T. Aramaki, M. Boezio, Steven Boggs, V. Bonvicini , et al. · 2022

The General Antiparticle Spectrometer (GAPS) is an upcoming balloon mission to measure low-energy cosmic-ray antinuclei during at least three ~35-day Antarctic flights. With its large geometric acceptance and novel exotic atom-based partic…

α-Clustering in atomic nuclei from first principles with statistical learning and the Hoyle state character Open

Takaharu Otsuka, Takashi Abe, T. Yoshida, Y. Tsunoda, Noritaka Shimizu , et al. · 2022

A long-standing crucial question with atomic nuclei is whether or not α clustering occurs there. An α particle (helium-4 nucleus) comprises two protons and two neutrons, and may be the building block of some nuclei. This is a very beautifu…

Spinal transection switches the effect of metabotropic glutamate receptor subtype 7 from the facilitation to inhibition of ejaculation Open

Miwako Masugi-Tokita, Shigehisa Kubota, Kenichi Kobayashi, T. Yoshida, Susumu Kageyama , et al. · 2022

Metabotropic glutamate receptor subtype 7 (mGluR7) is a member of the group III mGluRs, which localize to presynaptic active zones of the central nervous system. We previously reported that mGluR7 knockout (KO) mice exhibit ejaculatory dis…

Search for Dark Matter signatures from cosmic-ray antinuclei with the GAPS experiment Open

A. Tiberio, T. Aramaki, R. Bird, M. Boezio, S. E. Boggs , et al. · 2022

The General Antiparticle Spectrometer (GAPS) experiment is designed to perform low-energy cosmic-ray antinuclei measurements searching for indirect signatures of dark matter annihilation or decay. The unprecedented sensitivity at energies …

成層圏微生物採取実験Biopauseプロジェクト：B21-06実験報告 Open

宗祐大野, 範宗三宅, 修奥平, 高石橋, 恵介前田 , et al. · 2021

Cosmic-ray beryllium isotope ratio measured by BESS-Polar II Open

Tatsuya Wada, K. Abe, H. Fuke, S. Haino, T. Hams , et al. · 2021

The Balloon-borne Experiment with a Superconducting Spectrometer (BESS) has carried out precise observation of the low-energy cosmic rays. Using a tracking system (in a 0.8 T uniform magnetic field) with a rigidity resolution of ∼0.4% at 1…

Reconstruction of antinucleus-annihilation events in the GAPS experiment Open

A. Tiberio, T. Aramaki, R. Bird, M. Boezio, Steven Boggs , et al. · 2021

The General Antiparticle Spectrometer (GAPS) experiment is designed to detect low-energy (< 0.25 GeV/n) cosmic-ray antinuclei as indirect signatures of dark matter. Several beyondthe-standard-model scenarios predict a large antideuteron fl…

New result of Antideuteron search in BESS-Polar II Open

Kenichi Sakai, K. Abe, H. Fuke, S. Haino, T. Hams , et al. · 2021

High precision cosmic-ray low energy antiproton fluxes reported by BESS-Polar, PAMELA and AMS-02 are consistent with secondary production from interactions of primary cosmic rays with the interstellar medium. This severely constrains the p…

Cosmic Antiproton Sensitivity for the GAPS Experiment Open

F. Rogers, T. Aramaki, R. Bird, T. Aramaki, R. Bird , et al. · 2021

The General Antiparticle Spectrometer (GAPS) experiment is a balloon payload designed to measure low-energy cosmic antinuclei during at least three ∼ 35-day Antarctic flights, with the first flight planned for December, 2022. With its larg…

Cosmic antihelium-3 nuclei sensitivity of the GAPS experiment Open

N. Saffold, T. Aramaki, R. Bird, M. Boezio, Steven Boggs , et al. · 2021

マルチクロックトレーサーによる大気年代推定(B20-04結果速報) Open

敏菅原, 周司青木, 真司森本, 秀之本田, 栄豊田 , et al. · 2020

Cosmic-ray Antinuclei as Messengers of New Physics: Status and Outlook for the New Decade Open

P. von Doetinchem, K. Perez, T. Aramaki, S. Baker, S. W. Barwick , et al. · 2020

The precise measurement of cosmic-ray antinuclei serves as an important means for identifying the nature of dark matter and other new astrophysical phenomena, and could be used with other cosmic-ray species to understand cosmic-ray product…

Real-Time Self Localization for Autonomous Robot of RoboCup MSL Open

Kaori Watanabe, Yuehang Ma, T. Yoshida, Hidekazu Suzuki · 2020

This paper presents a self localization technique using an omni-directional camera for an autonomous soccer robot.The position information of the robot is important for strategic behavior and cooperative operation.Therefore, we have propos…

Application of Machine Learning to the Particle Identification of GAPS Open

Takuya Wada, H. Fuke, Yuki Shimizu, T. Yoshida · 2020

GAPS is an international balloon-borne project that contributes to solving the dark-matter mystery through a highly sensitive survey of cosmic-ray antiparticles, especially undiscovered antideuterons. To achieve a sufficient sensitivity to…

GAPS: Searching for Dark Matter using Antinuclei in Cosmic Rays Open

R. Bird, T. Aramaki, M. Boezio, Steven Boggs, V. Bonvicini , et al. · 2019

The General Antiparticle Spectrometer (GAPS) will carry out a sensitive dark matter search by measuring low-energy ($\mathrm{E} < 0.25 \mathrm{GeV/nucleon}$) cosmic ray antinuclei. The primary targets are low-energy antideuterons produced …

An Indirect Dark Matter Search Using Cosmic-Ray Antiparticles with GAPS Open

Alexander Lowell, T. Aramaki, R. Bird, M. Boezio, Steven Boggs , et al. · 2019

Experiments aiming to directly detect dark matter (DM) particles have yet to make robust detections, thus underscoring the need for complementary approaches such as searches for new particles at colliders, and indirect DM searches in cosmi…

Search for Cosmic-Ray Antideuterons with BESS-Polar II Open

Kenichi Sakai, K. Abe, H. Fuke, S. Haino, T. Hams , et al. · 2019

High-precision measurements of the cosmic-ray antiproton spectrum and sensitive search for cos- mological antihelium have been published using the data from BESS-Polar II (Balloon-borne Experiment with a Superconducting Spectrometer) fligh…

Application of Machine Learning to the Particle Identification of GAPS Open

Takuya Wada, H. Fuke, Yuki Shimizu, T. Yoshida · 2019

GAPS is an international balloon-borne project that contributes to solving the dark-matter mystery through a highly sensitive survey of cosmic-ray antiparticles, especially undiscovered antideuterons. To achieve a sufficient sensitivity to…

Hadronic Paschen-Back effect in charmonium Open

Sachio Iwasaki, Makoto Oka, Kei Suzuki, T. Yoshida · 2019

We review the Hadronic Paschen-Back effect in charmonium systems, which is a new phenomenon caused when hadrons with finite orbital angular momenta are exposed to a strong magnetic field. The mass spectra, shapes of wave functions, and mix…

Hadronic Paschen-Back effect in P-wave charmonia under strong magnetic fields Open

Sachio Iwasaki, Makoto Oka, Kei Suzuki, T. Yoshida · 2019

The Hadronic Paschen-Back effect (HPBE) is a new phenomenon induced by the interplay between finite orbital angular momenta of hadrons and external strong magnetic fields. We review the HPBE in P-wave charmonia and show its mass spectra, d…

Development of Teaching Material for Vibration Behavior Open

Michihiro Takiguchi, Sota Okada, T. Yoshida, Takuji KATAHIRA, Toshikazu FUJINO , et al. · 2019

In learning the issue of vibration, it is important to know the essence of the various problems in resonance, natural frequency, natural vibration mode, and so on. However, it is really very hard to understand these phenomena. So, we start…

GAPS, low-energy antimatter for indirect dark-matter search Open

E. Vannuccini, T. Aramaki, R. Bird, M. Boezio, Steven Boggs , et al. · 2018

The General Antiparticle Spectrometer (GAPS) is designed to carry out indirect dark matter search by measuring low-energy cosmic-ray antiparticles. Below a few GeVs the flux of antiparticles produced by cosmic-ray collisions with the inter…

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