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Prog. Theor. Phys. Vol. 100 No. 1 (1998) pp. 211-216
Letters
Antiproton Production in p + d Reaction at Subthreshold Energies
Akira Hasegawa,
Yoshitaka Iwasaki,
Katsuaki Sakamoto,
Nobuo Nakano,
Hiroaki Kouno and
Masahiro Nakano*
Department of Physics, Saga University, Saga 840-8502, Japan
*University of Occupational and Environmental Health
Kitakyusyu 807-8555, Japan
(Received February 20, 1998)
Abstract:
An enhancement of antiprotons produced in the p+d
reaction in comparison
over those produced in the p+p elementary reaction is investigated.
In the neighborhood of the
subthreshold energy, the enhancement is caused by the difference in
threshold energies for antiproton production. The cross section of the p+d
reaction, on the other hand, becomes just twice that in the elementary
p + p reaction at the incident energy far from
the threshold energy when non-nucleon components in the deuteron target
are not considered.
URL :
http://ptp.ipap.jp/link?PTP/100/211/
DOI : 10.1143/PTP.100.211
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