Parameter differences of the charged and neutral rho-meson family (2009)
Bartos, E., Dubnicka, S., Fujikawa, M., Hayashii, H.
New very precise KLOE data on $\m{e}^+\m{e}^-\to\pi^+\pi^-$ obtained by radiative return method in Frascati are unified with corrected CMD-2 and SND Novosibirsk $\m{e}^+\m{e}^-\to\pi^+\pi^-$ data and...
Flavor Physics in the Quark Sector (2009)
Antonelli, M, Asner, D M, Bauer, D, Becher, T, Beneke, M, Bevan, A J, ...
In the past decade, one of the major challenges of particle physics has been to gain an in-depth understanding of the role of quark flavor.In this time frame, measurements and the theoretical...
Flavor Physics in the Quark Sector (2009)
Antonelli, M., Asner, D. M., Bauer, D., Becher, T., Beneke, M., Bevan, A. J., ...
In the past decade, one of the major challenges of particle physics has been to gain an in-depth understanding of the role of quark flavor.In this time frame, measurements and the theoretical...
Measurement of CP asymmetries in $B^0 \to K^0\pi^0$ decays (2008)
Fujikawa, M., Yusa, Y., Collaboration, For The Belle
We report measurements of CP-violation parameters in $B^0 \to K^0 \pi^0$ decays based on a data sample of 657 $\times 10^6 B\bar{B}$ pairs collected with the Belle detector at the KEKB $e^+ e^-$...
High-Statistics Study of the tau^- -> pi^- pi^0 nu_tau Decay (2008)
Fujikawa, M., Hayashii, H., Eidelman, S., Collaboration, For The Belle
We report a high-statistics measurement of the branching fraction for tau^- --> pi^- pi^0 nu_tau and the invariant mass spectrum of the produced pi^- pi^0 system using 72.2 fb^-1 of data recorded...
Hayashi, K., Fujikawa, M., Sawa, T.
Background Hyperventilation, with the resulting hypocapnia, reduces cerebral blood flow and causes slowing of the EEG activity. However, neuronal oscillating properties including the thalamocortical...
Measurement of Cosmic-Ray Proton and Antiproton Spectra at Mountain Altitude (2003)
Sanuki, T., Fujikawa, M., Matsunaga, H., Abe, K., Anraku, K., Fuke, H., ...
Cosmic-ray proton and antiproton spectra were measured at mountain altitude, 2770 m above sea level. We observed more than 2 x 10^5 protons and 10^2 antiprotons in a kinetic energy range between 0.25...
Measurement of Cosmic-Ray Proton, Antiproton and Muon Spectra at Mountain Altitude (2003)
Sanuki, T., Fujikawa, M., Abe, K., Anraku, K., Fuke, H., Haino, S., ...
Measurement of cosmic-ray proton, antiproton and muon spectra was carried out at mountain altitude. We observed 2 x 10^5 protons and 10^2 antiprotons in a kinetic energy region of 0.25 -- 3.3 GeV....
Measurements of atmospheric muon spectra at mountain altitude (2002)
Sanuki, T., Fujikawa, M., Abe, K., Anraku, K., Asaoka, Y., Fuke, H., ...
We report new measurements of the atmospheric muons at mountain altitude. The measurement was carried out with the BESS detector at the top of Mt. Norikura, Japan. The altitude is 2,770 m above sea...
Precise Measurements of Atmospheric Muon Fluxes with the BESS Spectrometer (2002)
Motoki, M., Sanuki, T., Orito, S., Abe, K., Anraku, K., Asaoka, Y., ...
The vertical absolute fluxes of atmospheric muons and muon charge ratio have been measured precisely at different geomagnetic locations by using the BESS spectrometer. The observations had been...
Asaoka, Y., Shikaze, Y., Abe, K., Anraku, K., Fujikawa, M., Fuke, H., ...
The energy spectra of cosmic-ray low-energy antiprotons and protons have been measured by BESS in 1999 and 2000, during a period covering the solar magnetic field reversal. Based on these...
Measurement of low-energy antiproton detection efficiency in BESS below 1 GeV (2001)
Asaoka, Y., Yoshimura, K., Yoshida, T., Abe, K., Anraku, K., Fujikawa, M., ...
An accelerator experiment was performed using a low-energy antiproton beam to measure antiproton detection efficiency of BESS, a balloon-borne spectrometer with a superconducting solenoid. Measured...
Matsuda, T, Fujikawa, M, Haruki, M, Tang, XF, Ezaki, S, Imanaka, T, ...
Precise Measurement of Cosmic-Ray Proton and Helium Spectra with the BESS Spectrometer (2000)
Sanuki, T., Motoki, M., Matsumoto, H., Seo, E. S., Wang, J. Z., Abe, K., ...
We report cosmic-ray proton and helium spectra in energy ranges of 1 to 120 GeV and 1 to 54 GeV/nucleon, respectively, measured by a balloon flight of the BESS spectrometer in 1998. The...
Precision Measurement of Cosmic-Ray Antiproton Spectrum (1999)
Orito, S., Maeno, T., Matsunaga, H., Abe, K., Anraku, K., Asaoka, Y., ...
The energy spectrum of cosmic-ray antiprotons has been measured in the range 0.18 to 3.56 GeV, based on 458 antiprotons collected by BESS in recent solar-minimum period. We have detected for the...
Progress in search for cosmic-ray anti-particles by BESS spectrometer (1998)
Yamamoto, A, Orito, S, Ormes, J F, Yoshida, T, Yoshimura, K, Abe, K, ...
Development of a Large-Area Aerogel Cherenkov Counter Onboard BESS (1998)
Asaoka, Y., Abe, K., Yoshimura, K., Ishino, M., Fujikawa, M., Orito, S.
This paper describes the development of a threshold type aerogel Cherenkov counter with a large sensitive area of 0.6 m$^2$ to be carried onboard the BESS rigidity spectrometer to detect cosmic-ray...
A search for massive neutral bosons in orthopositronium decay (1995)
Maeno, T., Fujikawa, M., Kataoka, J., Nishihara, Y., Orito, S., Shigekuni, K., ...
We have searched for an exotic decay of orthopositronium into a single photon and a short-lived neutral boson in the hitherto unexplored mass region above 900 ${\rm keV}/{\it c}^{2}$, by noting that...
Eicosapentaenoic acid inhibits antigen-presenting cell function of murine splenocytes.
Fujikawa, M, Yamashita, N, Yamazaki, K, Sugiyama, E, Suzuki, H, Hamazaki, T
Recently, many investigators have studied the effects of eicosapentaenoic acid (EPA)-rich fish oil on immune function and immune disease. However, effects of dietary supplementation of fish oil or...