A New Limit on the Flux of Cosmic Antihelium

Details A New Limit on the Flux of Cosmic Antihelium A New Limit on the Flux of Cosmic Antihelium

1997-10-21

arxiv.org/abs/astro-ph/9710228v1

Phys.Lett. B422 (1998) 319-324

Astronomy and Astrophysics

Astrophysics

REVTeX, 4 pages (including 5 EPS figures). Submitted to PRL

Scientific paper

10.1016/S0370-2693(98)00131-2

A very sensitive search for cosmic-ray antihelium was performed using data obtained from three scientific flights of 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 limit on the Hebar/He flux ratio is 3.1*10**(-6), 30 times more stringent than the limits obtained in similar rigidity regions with magnetic spectrometers previous to BESS.

Affiliated with

Also associated with

No associations

Rating

A New Limit on the Flux of Cosmic Antihelium does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with A New Limit on the Flux of Cosmic Antihelium, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A New Limit on the Flux of Cosmic Antihelium will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-79696