Abstract
The p4He annihilation cross section averaged over the interval 40-50 MeV/c has been measured using a streamer chamber in a magnetic field. The measured value is 1342±250 mb. It agrees with a behaviour like 1 p of the annihilation cross section. Our result has been obtained at the lowest momentum achieved till now in measurements of antiproton annihilation in flight.
Original language | English |
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Pages (from-to) | 36-40 |
Number of pages | 5 |
Journal | Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics |
Volume | 230 |
Issue number | 1-2 |
DOIs | |
Publication status | Published - 26 Oct 1989 |
Externally published | Yes |