Abstract
In a sample of 1.5×104 helium and 4.0×104 higher-charged nuclei, obtained with balloon-borne superconducting magnetic spectrometers, we find the ratio of antinuclei to nuclei in the cosmic rays to be less than 8×10-5 for rigidities (momentum/charge) between 4 and 33 GV/c and less than 10-2 between 33 and 100 GV/c, at the 95% confidence level.
| Original language | English |
|---|---|
| Pages (from-to) | 258-261 |
| Number of pages | 4 |
| Journal | Physical Review Letters |
| Volume | 35 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - 1975 |
| Externally published | Yes |