38 citations · 148 across the 9 of their papers we have counts for
7 papers
Performance evaluation of GYGAG crystals for neutrinoless double beta decay search
Hibiki Hayasaki, Keishi Hosokawa, Koichi Ichimura +6
Neutrinoless double beta decay (0) is a crucial for confirming neutrinos' Majorana characteristics. Previous searches for 0 decay of Gd using GSO crystals was con…
Probing Internal Conversion and Dark-Matter-Induced De-excitation of 180mTa with a gamma-ray TES Array
A. Gando, K. Ichimura, K. Ishidoshiro +5
We propose and evaluate a source-as-detector search for the de-excitation of the long-lived isomer in natural tantalum (Ta), using a -ray transitio…
Development of a low-background micro pixel chamber for directional dark matter searches
Ryota Namai, Satoshi Higashino, Hirohisa Ishiura +11
Direct detection of weakly interacting massive particles (WIMPs) can provide strong evidence of their existence and the directional method would have an advantage over other method…
Improved method for measuring low concentration radium and its application to the Super-Kamiokande Gadolinium project
S. Ito, K. Ichimura, Y. Takaku +8
Chemical extraction using a molecular recognition resin named "Empore Radium Rad Disk" was developed to improve sensitivity for the low concentration of radium (Ra). Compared with…
Search for dark matter in the form of hidden photons and axion-like particles in the XMASS detector
XMASS Collaboration, K. Abe, K. Hiraide +35
Hidden photons and axion-like particles are candidates for cold dark matter if they were produced non-thermally in the early universe. We conducted a search for both of these boson…
Identification of Pb and Po in the bulk of copper samples with a low-background alpha particle counter
XMASS collaboration, K. Abe, K. Hiraide +39
We established a method to assay Pb and Po contaminations in the bulk of copper samples using a low-background alpha particle counter. The achieved sensitivity for…