Vaporization and Multifragmentation in 1.2 GeV Antiproton induced Reactions

With energetic antiproton-light-nucleus interactions it is possible to reach excitation energies exceeding nuclear binding energy. For 1.2 GeV +Cu we observe the onset of vaporization at about 8 MeV/nueleon, but even at 15 MeV/nucleon the probability of vaporization is smaller than 15%. The threshol...

Full description

Saved in:
Bibliographic Details
Main Authors: Goldenbaum, F, Pienkowski, L, Bohne, W, Egidy, T v, Figuera, P, Galin, J, Hilscher, D, Jahnke, U, Jastrzebski, J, Lott, B, Morjean, M, Peghaire, A, Schmid, S, Schmid, W
Format: Conference Proceeding
Language:English
Subjects:
ANTIPROTON REACTIONS
ANTIPROTONS
BINDING ENERGY
COPPER 63 TARGET
EXCITATION
GEV RANGE
MEV RANGE
NUCLEAR FRAGMENTATION
NUCLEAR FRAGMENTS
PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
PROBABILITY
PROTON-NUCLEON INTERACTIONS
SILVER 107 TARGET
SILVER 109 TARGET
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:With energetic antiproton-light-nucleus interactions it is possible to reach excitation energies exceeding nuclear binding energy. For 1.2 GeV +Cu we observe the onset of vaporization at about 8 MeV/nueleon, but even at 15 MeV/nucleon the probability of vaporization is smaller than 15%. The threshold excitation energy for multifragmentation processes defined as the detection of at least 3 intermediate mass fragments is observed at about 4 MeV/nucleon for 1.2 GeV + Cu and Ag. The probability of multifragmentation is small and even at excitation energy above the total binding energy not larger than 5% and 20% of the corresponding inclusive cross sections.
ISSN:0094-243X
1551-7616
DOI:10.1063/1.2130170