The p̄D and p̄ 4 He total annihilation cross sections have been measured with the Obelix apparatus at LEAR at, respectively, three and two values of the p incident momentum between 70 MeV/c and 36 MeV/c. The values of the p̄D annihilation cross section, at such low energies, are in agreement with a surprising result obtained in a recent low statistics measurement of the antiprotonic deuterium K α X-rays [M. Augsburger et al., Phys. Lett. B 461 (1999) 417] (see following article), concerning the unexpected narrow width of the antiprotonic deuterium Is level.

P̄D̄ 4 and p He annihilation cross sections at very low energy / Zenoni, A., Bianconi, A., Bonomi, G., Corradini, M., Donzella, A., Lodi Rizzini, E., Venturelli, L., Bertin, A., Bruschi, M., Capponi, M., De Castro, S., Donà, R., Galli, D., Giacobbe, B., Marconi, U., Massa, I., Piccinini, M., Semprini Cesari, N., Spighi, R., Vagnoni, V., et al.. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - 461:4(1999), pp. 413-416.

P̄D̄ 4 and p He annihilation cross sections at very low energy

AGNELLO, MICHELANGELO;IAZZI, Felice;MINETTI, Bruno;
1999

Abstract

The p̄D and p̄ 4 He total annihilation cross sections have been measured with the Obelix apparatus at LEAR at, respectively, three and two values of the p incident momentum between 70 MeV/c and 36 MeV/c. The values of the p̄D annihilation cross section, at such low energies, are in agreement with a surprising result obtained in a recent low statistics measurement of the antiprotonic deuterium K α X-rays [M. Augsburger et al., Phys. Lett. B 461 (1999) 417] (see following article), concerning the unexpected narrow width of the antiprotonic deuterium Is level.
1999
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11583/1849598
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