Thermal bremsstrahlung probing the thermodynamical state of multifragmenting systems

  • D. G. D'Enterria
  • , L. Aphecetche
  • , A. Chbihi
  • , H. Delagrange
  • , J. Díaz
  • , M. J. Van Goethem
  • , M. Hoefman
  • , H. Huisman
  • , A. Kugler
  • , H. Loehner
  • , G. Martínez
  • , R. Ortega
  • , R. Ostendorf
  • , S. Schadmand
  • , Y. Schutz
  • , R. Siemssen
  • , D. Stracener
  • , P. Tlusty
  • , R. Turrisi
  • , M. Volkerts
  • V. Wagner, H. Wilschut, N. Yahlali

    Research output: Contribution to journalArticlepeer-review

    1 Scopus citations

    Abstract

    Inclusive and exclusive hard-photon (Eγ > 30 MeV) production in five different heavy-ion reactions (36Ar+197Au, 107Ag, 58Ni, 12C at 60A MeV and 129Xe+120Sn at 50A MeV) has been studied coupling the TAPS photon spectrometer with several charged-particle multidetectors covering more than 80% of 4π. The measured spectra, slope parameters and source velocities as well as their target-dependence, confirm the existence of thermal bremsstrahlung emission from secondary nucleon-nucleon collisions that accounts for roughly 20% of the total hard-photon yield. The thermal slopes are a direct measure of the temperature of the excited nuclear systems produced during the reaction.

    Original languageEnglish
    Pages (from-to)291-294
    Number of pages4
    JournalNuclear Physics A
    Volume681
    Issue number1-4
    DOIs
    StatePublished - Jan 29 2001

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