A NEW LIMIT ON THE FLUX OF COSMIC ANTIHELIUM

@inproceedings{Saeki1998ANL,
  title={A NEW LIMIT ON THE FLUX OF COSMIC ANTIHELIUM},
  author={Takayuki Saeki and Kazuaki Anraku and Shūji Orito and Jonathan F. Ormes and Masatosi Imori and B. L. Kimbell and Yasuhiro Makida and Hideki Matsumoto and Hiroyuki Matsunaga and John William Mitchell and Masaka Motoki and Jun Nishimura and Mitsuaki Nozaki and Mayumi Otoba and Tetsuro Sanuki and Robert E. Streitmatter and Jun-ichi Suzuki and Ken-ichi Tanaka and Ikuo Ueda and Nobuyuki Yajima and Takamasa Yamagami and Akira Yamamoto and Teppei Yoshida and K. Yoshimura University of Tokyo and Kek and New Mexico State University and Kobe University and NASA-GSFC and Isas},
  year={1998}
}
  • Takayuki Saeki, Kazuaki Anraku, +26 authors Isas
  • Published 1998
  • Physics
  • Abstract A very sensitive search for cosmic-ray antihelium was performed using data obtained from three scientific flights of the BESS magnetic rigidity spectrometer. We have not observed any antihelium; this places a model-independent upper limit (95% C.L.) on the antihelium flux of 6×10 −4 m −2 sr −1 s −1 at the top of the atmosphere in the rigidity region 1 to 16 GV, after correcting for the estimated interaction loss of antihelium in the air and in the instrument. The corresponding upper… CONTINUE READING