Antiproton stopping power in hydrogen below 120 keV and the Barkas effect
- Adamo, A.
- Agnello, Michelangelo
- Balestra, F.
- Belli, G.
- Bendiscioli, G.
- Bertin, A.
- Boccaccio, P.
- Bonazzola, G.C.
- Bressani, T.
- Bruschi, M.
- Bussa, M.P.
- Busso, L.
- Calvo, D.
- Capponi, M.
- Corradini, M.
- Costa, S.
- De Castro, S.
- D'Isep, D.
- Falomkin, I.V.
- Fava, L.
- Feliciello, A.
- Ferrero, L.
- Filippini, V.
- Garfagnini, R.
- Gastaldi, U.
- Gianotti, P.
- Grasso, A.
- Guaraldo, C.
- Iazzi, Felice
- Lanaro, A.
- Lodi Rizzini, E.
- Lombardi, M.
- Macciotta, M.P.
- Maggiora, A.
- Marcello, S.
- Marconi, U.
- Margagliotti, G.V.
- Maron, G.
- Masala, M.
- Masoni, A.
- Massa, I.
- Minetti, Bruno
- Morando, M.
- Morganti, M.
- Panzieri, D.
- Pauli, G.
- Piccinini, M.
- Piragino, R.
- Poli, M.
- Pontecorvo, G.B.
- Puddu, G.
- Ricci, R.A.
- Rotondi, A.
- Rozhdestvensky, A.M.
- Salvini, P.
- Santi, L.
- Sapozhnikov, M.G.
- Sartori, G.
- Semprini-Cesari, N.
- Serci, S.
- Tosello, F.
- Tretyak, V.I.
- Vannucci, L.
- Vedovato, G.
- Venturelli, L.
- Vitale, A.
- Zenoni, A.
- Zoccoli, A.
- Zosi, G.
DOIAbstract
The simultaneous measurement of the spatial coordinates and times of p¯s annihilating at rest in a H2 target at very low density ρ (ρ/ρ0<10-2, ρ0 being the STP density) gives the possibility of evaluating the behavior of the p¯ stopping power in H2 at low energies (below 120 keV). It is different from that of protons (the Barkas effect). Moreover, it is shown that a rise at low-energy values (≲1 keV) is needed to agree with experimental data
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