Journal Article

PreJuSER-55351

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Constraints on the Time-Scale of Nuclear Breakup from Thermal Hard-Photon Emission

Ortega, R. ; d'Enterria, D. ; Martinez, G. ; Baiborodin, D. ; Delagrange, H. ; Diaz, J. ; Fernandez, F. ; Loehner, H. ; Matulewicz, T. ; Ostendorf, R. W. ; Schadmand, S.FZJ* ; Schutz, Y. ; Tlusty, P. ; Turrisi, R. ; Wagner, V. ; Wilschut, H. W. ; Yahlali, N.

2006
Springer Berlin

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Please use a persistent id in citations: http://hdl.handle.net/2128/10616  doi:10.1140/epja/i2005-10277-9

Abstract: Measured hard-photon multiplicities from second-chance nucleon-nucleon collisions are used in combination with a kinetic thermal model to estimate the breakup times of excited nuclear systems produced in nucleus-nucleus reactions at intermediate energies. The obtained nuclear breakup time for the Xe-129 + Sn-nat reaction at 50 A MeV is Delta tau approximate to 100-300 fm/c for all reaction centralities. The lifetime of the radiating sources produced in seven other different heavy-ion reactions studied by the TAPS experiment is consistent with Delta tau approximate to 100 fm/c, such relatively long thermal photon emission times do not seemingly support the interpretation of nuclear breakup as due to a fast spinodal process for the heavy nuclear systems studied.

Keyword(s): J

Note: Record converted from VDB: 12.11.2012; 11 pages, 9 figures, submitted to EPJA

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Contributing Institute(s):

1. Institut 1 (Experimentelle Kernphysik I) (IKP-E-I)

Research Program(s):

1. Physik der Hadronen und Kerne (P53)

Appears in the scientific report 2006

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Database coverage:

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