Antiproton-helium annihilation around 45 MeV/c

F. Balestra, R. Barbieri, Yu A. Batusov, G. Bendiscioli, S. Bossolasco, F. O. Breivik, M. P. Bussa, L. Busso, C. Guaraldo, I. V. Falomkin, L. Ferrero, V. Filiipini, A. Haatuft, A. Halsteinslid, T. Jacobsen, E. Lodi Rizzini, A. Maggiora, M. Masala, K. Myklebost, J. M. OlsenD. Panzieri, G. Piragino, G. B. Pontecorvo, A. Rotondi, A. M. Rozhdestvensky, P. Salvini, M. G. Sapozhnikov, S. O. Sørensen, F. Tosello, V. I. Tretyak, A. Zenoni

Research output: Contribution to journalArticlepeer-review

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 languageEnglish
Pages (from-to)36-40
Number of pages5
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume230
Issue number1-2
DOIs
Publication statusPublished - 26 Oct 1989
Externally publishedYes

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