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In-flight antiproton annihilation on nuclei at low energies |
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| Authors: | Maurizio Corradini Masaki Hori Takumi Kobayashi Marco Leali Evandro Lodi-Rizzini Valerio Mascagna Aldo Mozzanica Michela Prest Anna Soter Koichi Todoroki Erik Vallazza Luca Venturelli Nicola Zurlo |
| Affiliation: | 1. Dipartimento di Chimica e Fisica per l??Ingegneria e per i Materiali, Universit?? di Brescia, 25133, Brescia, Italy 2. Istituto Nazionale di Fisica Nucleare, Gruppo Collegato di Brescia, 25133, Brescia, Italy 5. Max-Planck-Institut fur Quantenoptik, Hans-Kopfermann-Strasse 1, 85748, Garching, Germany 6. Department of Physics, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan 3. Dipartimento di Scienze Fisiche e Matematiche, Universit?? di Como, 22100, Como, Italy 4. Istituto Nazionale di Fisica Nucleare, Sezione di Trieste, 34127, Trieste, Italy |
| Abstract: | The results of the annihilation cross sections measurement of 5.3 MeV antiprotons on nickel, tin, platinum and Mylar targets performed by the ASACUSA Collaboration at CERN are presented and compared with the existing data and models. From the experimental point of view the presented data are the first measurement of antinucleon annihilation cross sections at low energies obtained with a pulsed beam. This results open the road for the next measurements at the very low energies of the order of 100 keV that are in progress by the ASACUSA Collaboration. The experimental method foreseen for the 100 keV measurement is illustrated. |
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