Limits on antiproton-nuclei annihilation cross sections at ∼125 keV

Limits on antiproton-nuclei annihilation cross sections at ∼125 keV

Some experimental limits on the annihilation cross sections σann of antiprotons on carbon, palladium, and platinum targets were determined at the previously unexplored kinetic energy region E≈125 keV. Information on σann at such low antiproton energies is important in understanding the dynamics of t...

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Veröffentlicht in:Nuclear physics. A 2021-05, Vol.1009, p.122170, Article 122170
Hauptverfasser: Aghai-Khozani, H., Barna, D., Corradini, M., De Salvador, D., Hayano, R.S., Hori, M., Leali, M., Lodi-Rizzini, E., Mascagna, V., Prest, M., Seiler, D., Sótér, A., Todoroki, K., Vallazza, E., Venturelli, L.
Format: Artikel
Sprache:eng
Schlagworte:
Antiproton annihilations
Low energies
Nuclear reactions
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Zusammenfassung:Some experimental limits on the annihilation cross sections σann of antiprotons on carbon, palladium, and platinum targets were determined at the previously unexplored kinetic energy region E≈125 keV. Information on σann at such low antiproton energies is important in understanding the dynamics of the annihilation process, and provides useful data for models that attempt to describe the matter-antimatter asymmetry in the universe by assuming the existence of islands of antimatter concentration.
ISSN:0375-9474
DOI:10.1016/j.nuclphysa.2021.122170