The Alpha Magnetic Spectrometer (AMS) was flown on the space shuttle Discovery during flight STS-91 in a 51.7° orbit at altitudes between 320 and 390 km. A total of 2.86×106 helium nuclei were observed in the rigidity range 1 to 140 GV. No antihelium nuclei were detected at any rigidity. An upper limit on the flux ratio of antihelium to helium of <1.1×10−6 is obtained.

Alcaraz, J., Alvisi, D., Alpat, B., Ambrosi, G., Anderhub, H., Ao, L., et al. (1999). Search for antihelium in cosmic rays. PHYSICS LETTERS. SECTION B, 461(4), 387-396 [10.1016/S0370-2693(99)00874-6].

Search for antihelium in cosmic rays

BOELLA, GIULIANO FILIPPO;GERVASI, MASSIMO;
1999

Abstract

The Alpha Magnetic Spectrometer (AMS) was flown on the space shuttle Discovery during flight STS-91 in a 51.7° orbit at altitudes between 320 and 390 km. A total of 2.86×106 helium nuclei were observed in the rigidity range 1 to 140 GV. No antihelium nuclei were detected at any rigidity. An upper limit on the flux ratio of antihelium to helium of <1.1×10−6 is obtained.
Articolo in rivista - Articolo scientifico
Cosmic rays: anti-helium
English
1999
461
4
387
396
none
Alcaraz, J., Alvisi, D., Alpat, B., Ambrosi, G., Anderhub, H., Ao, L., et al. (1999). Search for antihelium in cosmic rays. PHYSICS LETTERS. SECTION B, 461(4), 387-396 [10.1016/S0370-2693(99)00874-6].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/34463
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