First results concerning p-pBAR and n-pBAR annihilation cross section and n-pBAR total cross sections at low energies (2.25 less-than-or-equal-to E(pBAR) less-than-or-equal-to 2.76 MeV and 3.4 < E(nBAR) < 44.6 MeV) obtained by the OBELIX spectrometer are reported. The agreement with the few existing data in this energy range is good; the comparison with some models gives interesting indications on the S and P wave contribution at very low energy and on the range of the elastic interaction. RI Galli, Domenico/A-1606-2012; Villa, Mauro/C-9883-2009; Filippi, Alessandra/I-9530-2012
ANTINUCLEON-NUCLEON ANNIHILATION CROSS-SECTION MEASUREMENTS AT LOW ENERGIES
PUDDU, GIOVANNA;USAI, GIANLUCA;
1993-01-01
Abstract
First results concerning p-pBAR and n-pBAR annihilation cross section and n-pBAR total cross sections at low energies (2.25 less-than-or-equal-to E(pBAR) less-than-or-equal-to 2.76 MeV and 3.4 < E(nBAR) < 44.6 MeV) obtained by the OBELIX spectrometer are reported. The agreement with the few existing data in this energy range is good; the comparison with some models gives interesting indications on the S and P wave contribution at very low energy and on the range of the elastic interaction. RI Galli, Domenico/A-1606-2012; Villa, Mauro/C-9883-2009; Filippi, Alessandra/I-9530-2012
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