A5014439277- Astrophysics and Cosmic Phenomena
- Radio Astronomy Observations and Technology
- Neutrino Physics Research
- Dark Matter and Cosmic Phenomena
- Particle Accelerators and Free-Electron Lasers
- Plasma Diagnostics and Applications
- Particle accelerators and beam dynamics
- High-Energy Particle Collisions Research
- Quantum Chromodynamics and Particle Interactions
- Scientific Research and Discoveries
- Gamma-ray bursts and supernovae
- Particle physics theoretical and experimental studies
Pennsylvania State University
2021-2022
Institute of Astronomy and Astrophysics, Academia Sinica
2022
National Taiwan University
2020-2022
Chiba University
2021
The Payload for Ultrahigh Energy Observations (PUEO) long-duration balloon experiment is designed to have world-leading sensitivity ultrahigh-energy neutrinos at energies above 1 EeV. Probing this energy region essential understanding the extreme-energy universe all distance scales. PUEO leverages experience from and supersedes successful Antarctic Impulsive Transient Antenna (ANITA) program, with an improved design that drastically improves by more than order of magnitude below 30 will...
In the pursuit of measurement still-elusive ultrahigh-energy (UHE) neutrino flux at energies order EeV, detectors using in-ice Askaryan radio technique have increasingly targeted lower trigger thresholds. This has led to improved trigger-level sensitivity UHE neutrinos. Working with data collected by Radio Array (ARA), we search for candidates lowest threshold achieved date, leading analysis-level sensitivities. A on a set 208.7~days livetime from reduced-threshold fifth ARA station is...
The Payload for Ultrahigh Energy Observations (PUEO) is a balloon-borne neutrino observatory currently under construction and slated to fly in December 2025. PUEO will be sensitive both Askaryan radio emission from interactions the ice, geomagnetic created either cosmic ray or tau leptons decaying. Separating air shower critical achieving PUEO's main science goal of measuring flux neutrinos above 1 EeV. In this contribution, I describe how sensitivity channel has been improved relative its...
The Payload for Ultrahigh Energy Observations (PUEO) is a long-duration balloon payload under construction scheduled to fly over Antarctica in late 2025. PUEO will deploy broadband interferometric radio telescope pointing down at the ice sheet with primary science goal of detecting impulsive Askaryan emission expected accompany interactions ultrahigh-energy (UHE) neutrinos (> 1 EeV) glacial ice. PUEO’s design represents an order-of-magnitude improvement neutrino sensitivity compared...
PUEO (the Payload for Ultrahigh Energy Observations) is a balloon-borne payload designed to detect the impulsive radio signals produced through Askaryan effect by ultrahigh-energy (UHE) neutrinos (>1 EeV) in Antarctic ice. Several key upgrades over its predecessor ANITA allow an order of magnitude improvement sensitivity UHE neutrinos. These include interferometric phased array trigger, newly antennas that double overall collecting area above 300 MHz, dedicated low-frequency instrument...
We report searches for ${B}^{0}\ensuremath{\rightarrow}\text{invisible}$ and ${B}^{0}\ensuremath{\rightarrow}\text{invisible}+\ensuremath{\gamma}$ decays, where the energy of photon is required to be larger than 0.5 GeV. These results are obtained from a $711\text{ }\text{ }{\mathrm{fb}}^{\ensuremath{-}1}$ data sample that contains $772\ifmmode\times\else\texttimes\fi{}{10}^{6}B\overline{B}$ pairs was collected near $\mathrm{\ensuremath{\Upsilon}}(4S)$ resonance with Belle detector at KEKB...
The Askaryan Radio Array (ARA) experiment at the South Pole is designed to detect radio signals produced by ultra high energy cosmic neutrino interactions in ice. There are 5 independent ARA stations, one of which (A5) includes a low-threshold phased array trigger string. Each station work as an autonomous detector. Data Acquisition System all stations equipped with Ice Ray Sampler second-generation (IRS2) chip, custom-made, application-specific integrated circuit (ASIC) for high-speed...
The Payload for Ultrahigh Energy Observations (PUEO) long-duration balloon experiment is designed to observe ultra-high energy (UHE) neutrinos with energies above EeV. PUEO consists of a Main Instrument (MI) on fixed gondola and Low Frequency (LF) instrument that will be deployed under the main when reaches stratosphere. LF includes 8 sinuous antennas operate in 50-500 MHz range, complementing 96 dual-polarized horn constituting MI, receive signals 300-1200 range. sensitive impulsive,...
The primary science goals of the Payload for Ultrahigh Energy Observations (PUEO) are testing models both candidate sources ultrahigh-energy neutrinos (UHEN) and propagation cosmic rays. PUEO is a balloon-borne observatory that scans Antarctic ice UHEN through their Askaryan emission (the successor to ANtarctic Impulsive Transient Antenna (ANITA)). payload design optimized detection impulsive radio emissions with characteristics such as wide bandwidth fast timing. challenge in reaching high...
The Payload for Ultrahigh Energy Observations (PUEO) is a NASA Long-Duration Balloon Mission that has been selected concept development. PUEO unprecedented sensitivity to ultra-high energy neutrinos above $10^{18}$ eV. will be sensitive both Askaryan emission from neutrino-induced cascades in Antarctic ice and geomagnetic upward-going air showers are result of tau neutrino interactions. also especially well-suited point source transient searches. Compared its predecessor ANITA, achieves...
The upcoming Payload for Ultra-high Energy Observations (PUEO) experiment is planned launch in the 2025/2026 season, and detailed simulation of necessary both design instrument prior to launch, as well data analysis post-flight. new simulations package PUEO builds upon previously developed IceMC framework that was used by ANITA experiment, boasts a model detector, including descriptions response antennas, amplification electronics, phased array trigger, more accurate parameterization...
The Askaryan Radio Array (ARA) is searching for high-energy neutrinos (>10 PeV) from the cosmos using clusters of antennas buried under South Pole ice sheet at a maximum depth 200 m. ARA looking radio Cherenkov emission generated when interact with surrounding medium. array consists 5 stations, each them monitoring an independent portion to maximize detector effective volume. stations use combination vertically polarized (VPol) and horizontally (HPol) antennas, as well in-ice calibration...
The Askaryan Radio Array (ARA) is an in-ice radio detector at the South Pole that targets emission from neutrino-induced particle cascades. Designed to detect neutrinos above 10 PeV, ARA has been taking data for over ten years and includes five independent stations. newest station equipped with a phased array trigger, which lowers trigger threshold compared previous stations thus increases neutrino sensitivity. In this contribution, we discuss analysis results show corresponding improvement...
The Askaryan Radio Array (ARA) is a gigaton-size neutrino radio telescope located near the geographic South Pole. ARA has five independent stations designed to detect emission coming from interactions between ultra-high energy neutrinos ( $> 10$~PeV ) and Antarctic ice. Each station includes of 16 antenna deployed in matrix shape at up 200 m deep A simulated template, including detector response model, was implemented new search technique for reducing background noise improving vertex...