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Prompt light particle emission in the 36Ar + 58Ni reaction at 95 MeV/nucleon

  • P. Pawłowski
  • B. Borderie
  • G. Auger
  • Ch.O. Bacri
  • N. Bellaize
  • F. Bocage
  • R. Bougault
  • R. Brou
  • P. Buchet
  • J.L. Charvet
  • A. Chbihi
  • J. Colin
  • D. Cussol
  • R. Dayras
  • A. Demeyer
  • D. Doré
  • D. Durand
  • J.D. Frankland
  • E. Galichet
  • E. Genouin-Duhamel
  • E. Gerlic
  • D. Guinet
  • P. Lautesse
  • J.L. Laville
  • J.F. Lecolley
  • R. Legrain
  • N. Le Neindre
  • O. Lopez
  • M. Louvel
  • A.M. Maskay
  • L. Nalpas
  • A.D. Nguyen
  • M. Pârlog
  • J. Péter
  • E. Plagnol
  • M.F. Rivet
  • E. Rosato
  • F. Saint-Laurent
  • S. Salou
  • J.C. Steckmeyer
  • M. Stern
  • G. Tăbăcaru
  • B. Tamain
  • L. Tassan-Got
  • O. Tirel
  • E. Vient
  • C. Volant
  • J.P. Wieleczko
  • (INDRA Collaboration)

Abstract:

The prompt component at intermediate velocity of light charged particles is investigated. An improved coalescence model coupled to the intra-nuclear cascade code ISABEL is used to obtain light complex particle energy spectra and multiplicities as a function of impact parameter. The results are compared with experimental data from the 36Ar + 58Ni experiment at 95 MeV/nucleon, performed with the INDRA 4π detection system. The calculated prompt component is found to rather well reproduce proton spectra. For complex light charged particles the calculated components well populate the high energy part of spectra. Prompt emission can therefore explain the large transverse energies experimentally observed at mid-rapidity.

PACS. 24.10.-i Nuclear-reaction models and methods – 25.70.Lm Strongly damped collisions – 25.70.Pq Multifragment emission and correlations 

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Copyright information

© Società Italiana di Fisica and Springer-Verlag 2000

Authors and Affiliations

  • P. Pawłowski
    • 1
  • B. Borderie
    • 1
  • G. Auger
    • 2
  • Ch.O. Bacri
    • 1
  • N. Bellaize
    • 3
  • F. Bocage
    • 3
  • R. Bougault
    • 3
  • R. Brou
    • 3
  • P. Buchet
    • 4
  • J.L. Charvet
    • 4
  • A. Chbihi
    • 2
  • J. Colin
    • 3
  • D. Cussol
    • 3
  • R. Dayras
    • 4
  • A. Demeyer
    • 5
  • D. Doré
    • 4
  • D. Durand
    • 3
  • J.D. Frankland
    • 2
  • E. Galichet
    • 1
  • E. Genouin-Duhamel
    • 3
  • E. Gerlic
    • 5
  • D. Guinet
    • 5
  • P. Lautesse
    • 5
  • J.L. Laville
    • 2
  • J.F. Lecolley
    • 3
  • R. Legrain
    • 4
  • N. Le Neindre
    • 3
  • O. Lopez
    • 3
  • M. Louvel
    • 3
  • A.M. Maskay
    • 5
  • L. Nalpas
    • 4
  • A.D. Nguyen
    • 3
  • M. Pârlog
    • 6
  • J. Péter
    • 3
  • E. Plagnol
    • 1
  • M.F. Rivet
    • 1
  • E. Rosato
    • 7
  • F. Saint-Laurent
    • 2
  • S. Salou
    • 2
  • J.C. Steckmeyer
    • 3
  • M. Stern
    • 5
  • G. Tăbăcaru
    • 6
  • B. Tamain
    • 3
  • L. Tassan-Got
    • 1
  • O. Tirel
    • 2
  • E. Vient
    • 3
  • C. Volant
    • 4
  • J.P. Wieleczko
    • 2
  • (INDRA Collaboration)
  1. 1.Institut de Physique Nucléaire, IN2P3-CNRS, F-91406 Orsay Cedex, FranceFR
  2. 2.GANIL, CEA and IN2P3-CNRS, B.P. 5027, F-14076 Caen Cedex, FranceFR
  3. 3.LPC, IN2P3-CNRS, ISMRA and Université, F-14050 Caen Cedex, FranceFR
  4. 4.DAPNIA/SPhN, CEA/Saclay, F-91191 Gif sur Yvette Cedex, FranceFR
  5. 5.Institut de Physique Nucléaire, IN2P3-CNRS and Université, F-69622 Villeurbanne Cedex, FranceFR
  6. 6.National Institute for Physics and Nuclear Engineering, RO-76900 Bucharest-Măgurele, RomaniaRO
  7. 7.Dipartimento di Scienze Fisiche and Sezione INFN, Università di Napoli “Federico II”, I-80126 Napoli, ItalyIT

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