Speaker
Dr
Nicola Zurlo
(Università di Brescia and INFN Brescia)
Description
The study of the antiproton cross section on nuclei at low energies (eV-MeV region) has implications for fundamental cosmology as well as for nuclear physics.
On the other hand, the existing data of antinucleon-nucleon (or -nucleus) annihilation cross-sections are confined to energies above approximately 1 MeV.
The ASACUSA collaboration at CERN recently measured antiproton annihilation cross
section at 5.3 MeV kinetic energy on different kinds of nuclei. Such results showed compatibility with the black-disk model with the Coulomb correction [1]. But till now experimental difficulties prevented the investigation at energies below approximately 1 MeV.
We report here about the first experiment performed at much lower kinetic energies, namely approximately 130 keV.
[1] A. Bianconi et al., Phys. Lett. B 704, (2011) 461;
Primary authors
Ms
Anna Soter
(Max-Planck-Institut fur Quantenoptik, Hans-Kopfermann-Strasse 1, D-85748 Garching, Germany)
Dr
Daniel Barna
(Wigner Institute for Particle and Nuclear Physics, H-1525 Budapest, Hungary and Department of Physics, University of Tokyo, Tokyo 113-0033, Japan)
Dr
Erik Vallazza
(INFN, Sezione di Trieste, I-34127 Trieste, Italy)
Prof.
Evandro Lodi-Rizzini
(Dipartimento di Ingegneria dell’Informazione, Università di Brescia, 25123 Brescia, Italy and INFN, Gruppo Collegato di Brescia, 25133 Brescia, Italy)
Mr
Hossein Aghai-Khozani
(Max-Planck-Institut fur Quantenoptik, Hans-Kopfermann-Strasse 1, D-85748 Garching, Germany and Physics Department, CERN, 1211 Geneva 23, Switzerland)
Mr
Koichi Todoroki
(Department of Physics, University of Tokyo, Tokyo 113-0033, Japan)
Prof.
Luca Venturelli
(Dipartimento di Ingegneria dell’Informazione, Università di Brescia, 25123 Brescia, Italy and INFN, Gruppo Collegato di Brescia, 25133 Brescia, Italy)
Mr
Marco Leali
(Dipartimento di Ingegneria dell’Informazione, Università di Brescia, 25123 Brescia, Italy and INFN, Gruppo Collegato di Brescia, 25133 Brescia, Italy)
Dr
Masaki Hori
(Max-Planck-Institut fur Quantenoptik, Hans-Kopfermann-Strasse 1, D-85748 Garching, Germany and Department of Physics, University of Tokyo, Tokyo 113-0033, Japan)
Dr
Maurizio Corradini
(Dipartimento di Ingegneria dell’Informazione, Università di Brescia, 25123 Brescia, Italy and INFN, Gruppo Collegato di Brescia, 25133 Brescia, Italy)
Dr
Michela Prest
(Dipartimento di Scienze Fisiche e Matematiche, Universit`a di Como, I-22100 Como, Italy and INFN, Sezione di Milano Bicocca, I-20126 Milano, Italy)
Dr
Nicola Zurlo
(Università di Brescia and INFN Brescia)
Prof.
Ryugo Hayano
(Department of Physics, University of Tokyo, Tokyo 113-0033, Japan)
Mr
Takumi Kobayashi
(Department of Physics, University of Tokyo, Tokyo 113-0033, Japan)
Mr
Valerio Mascagna
(Dipartimento di Ingegneria dell’Informazione, Università di Brescia, 25123 Brescia, Italy and INFN, Gruppo Collegato di Brescia, 25133 Brescia, Italy)
