Masaharu Aoki
Associate Professor
Experimental Particle Physics, Kuno Group
Room H518, Graduate School of Science (Toyonaka Campus map )
1-1 Machikaneyama, Toyonaka, Osaka 560-0043
Research Interests:

My research field is elementary particle physics experiment, aiming to understand the nature of universe.  I especially focus on the experiment searching for rare processes by using muons, pions and all the other light particles that can be copiously produced by particle accelerators.  I am also interested in the development of state-of-the-art detector technologies. The forefront of the rare process experiment is closely connected with the forefront of the detector technologies.

 Experiments that I am leading/contributing are:

COMET to search for μ-e conversion

PIENU to precisely measure π+→e+ν branching ratio

DeeMe to search for μ-e conversion

High Performance Pulsed Proton Quality Monitor

Selected Publications:

“Magnetic Field Measurement of Large Aperture FFAG Magnet for Muon-Phase-Rotation Ring”, Y. Arimoto et al.,
Nucl. Instrum. Methods Phys. Res., Sect. B 268, 200 (2010).

“Measurement of the K+ branching ratio”, S. Adler et al.,
Phys. Rev. D 77, 052003 (2008).

“Pion Decay-Mode Tagging in a Plastic Scintillator Using COPPER 500MHz FADC”,
K. Yamada, M. Yoshida, Y. Igarashi, M. Aoki, M. Ikeno, A. Muroi, Y. Takubo, M. Tanaka, K. Tauchi, IEEE Trans. Nucl. Sci. 54, 1222 (2007)

“Search for T-violating transverse muon polarization in the K+→π0μ+ν decay”,
M. Abe et al.,
Phys. Rev. D 73, 072005 (2006)

“Development and performance of resistive seamless straw-tube gas chambers”,
Y. Takubo et al.,
Nucl. Instrum. Methods Phys. Res., Sect. A 551, 271 (2005).

See ReaD database for the other publications:


Doctor of Science (the University of Tokyo)


JSPS Research Fellowship for postdocs


Research Fellow, TRIUMF


Research Associate, KEK


Associate Professor, Osaka University