Heating of Nuclei with Energetic Antiprotons

Journal Article · Thu Aug 01 00:00:00 EDT 1996 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.77.1230· OSTI ID:286974

Goldenbaum, F; Bohne, W; Eades, J; Egidy, T v; Figuera, P; Fuchs, H; Galin, J; Golubeva, Y S; Gulda, K; Hilscher, D; Iljinov, A S; Jahnke, U; Jastrzebski, J; Kurcewicz, W; Lott, B; Morjean, M; Pausch, G; Peghaire, A; Pienkowski, L; Polster, D ; Proschitzki, S; Quednau, B; Rossner, H; Schmid, S; Schmid, W; Ziem, P ^[1]

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1. Hahn-Meitner-Institut Berlin, Glienickerstr. 100, D-14109 Berlin (Germany)

The annihilation of energetic (1.2 GeV) antiprotons is exploited to deposit maximum thermal excitation (up to 1000 MeV) in massive nuclei (Cu, Ho, Au, and U) while minimizing the contribution from collective excitation such as rotation, shape distortion, and compression. Excitation energy distributions {ital d}{sigma}/{ital dE}{asterisk} are deduced from eventwise observation of the whole nuclear evaporation chain with two 4{pi} detectors for neutrons and charged particles. The nuclei produced in this way are found to decay predominantly statistically, i.e., by evaporation. {copyright} {ital 1996 The American Physical Society.}

• OSTI ID: 286974
• Journal Information: Physical Review Letters, Vol. 77, Issue 7; Other Information: PBD: Aug 1996
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
NUCLEI
ANTIPROTON REACTIONS
HEATING
ANNIHILATION
EXCITATION
SHAPE
ENERGY
DISTRIBUTION
EVAPORATION
NEUTRONS
CHARGED PARTICLES