A
A. Demeyer
Researcher at Centre national de la recherche scientifique
Publications - 70
Citations - 1504
A. Demeyer is an academic researcher from Centre national de la recherche scientifique. The author has contributed to research in topics: Nucleon & Charged particle. The author has an hindex of 23, co-authored 70 publications receiving 1454 citations.
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Journal ArticleDOI
Dynamical effects and intermediate mass fragment production in peripheral and semicentral collisions of Xe+Sn at 50 MeV/nucleon
J. Łukasik,J. Benlliure,Vincent Métivier,E. Plagnol,B. Tamain,M. Assenard,G. Auger,Ch.O. Bacri,E. Bisquer,Bernard Borderie,R. Bougault,R. Brou,Ph. Buchet,J.L. Charvet,A. Chbihi,J. Colin,D. Cussol,R. Dayras,A. Demeyer,D. Doré,D. Durand,E. Gerlic,S. Germain,D. Gourio,D. Guinet,P. Lautesse,J.L. Laville,J.F. Lecolley,A. Le Fèvre,T. Lefort,R. Legrain,O. Lopez,M. Louvel,Nathalie Marie,L. Nalpas,M. Parlog,Jean Péter,O. Politi,A. Rahmani,T. Reposeur,M.F. Rivet,E. Rosato,F. Saint-Laurent,M. Squalli,J.C. Steckmeyer,M. Stern,L. Tassan-Got,E. Vient,C. Volant,J.P. Wieleczko,Maria Colonna,Ferid Haddad,Ph. Eudes,T. Sami,F. Sébille +54 more
TL;DR: In this paper, the authors used the transverse energy of light particles as an impact parameter selector and compared the results with dynamical models with which a good agreement was obtained. But the results were not compared to dynamical model with which good agreement is obtained.
Journal ArticleDOI
A hot expanding source in 50 A MeV Xe + Sn central reactions
N. Marie,Richard Laforest,R. Bougault,J.P. Wieleczko,D. Durand,Ch.O. Bacri,J.F. Lecolley,F. Saint-Laurent,G. Auger,J. Benlliure,E. Bisquer,Bernard Borderie,R. Brou,J.L. Charvet,A. Chbihi,J. Colin,D. Cussol,R. Dayras,E. De Filippo,A. Demeyer,D. Doré,P. Ecomard,Ph. Eudes,D. Gourio,D. Guinet,P. Lautesse,J.L. Laville,A. Le Fèvre,T. Lefort,R. Legrain,O. Lopez,M. Louvel,V. Métivier,L. Nalpas,A. Ouatizerga,M. Parlog,Jean Péter,E. Plagnol,A. Rahmani,T. Reposeur,M.F. Rivet,E. Rosato,S. Salou,M. Squalli,J.C. Steckmeyer,B. Tamain,L. Tassan-Got,E. Vient,C. Volant +48 more
TL;DR: In this paper, the INDRA multidetector was used to study multifragmentation processes in central collisions for the Xe + Sn reaction at 50 A MeV, and the fragment kinetic energy spectra indicated a fast disintegration of the system with a radial collective motion of about 2 A MEV.
Journal ArticleDOI
Surveying the nuclear caloric curve
Yu-Gang Ma,A. Siwek,Jean Péter,Francesca Gulminelli,R. Dayras,L. Nalpas,B. Tamain,E. Vient,G. Auger,Ch.O. Bacri,J. Benlliure,E. Bisquer,Bernard Borderie,R. Bougault,R. Brou,J.L. Charvet,A. Chbihi,J. Colin,D. Cussol,E. De Filippo,A. Demeyer,D. Doré,D. Durand,P. Ecomard,Ph. Eudes,E. Gerlic,D. Gourio,D. Guinet,Richard Laforest,P. Lautesse,J.L. Laville,L. Lebreton,J.F. Lecolley,A. Le Fèvre,T. Lefort,R. Legrain,O. Lopez,M. Louvel,J. Łukasik,N. Marie,V. Métivier,A. Ouatizerga,M. Parlog,E. Plagnol,A. Rahmani,T. Reposeur,M.F. Rivet,E. Rosato,F. Saint-Laurent,M. Squalli,J.C. Steckmeyer,M. Stern,L. Tassan-Got,C. Volant,J.P. Wieleczko +54 more
TL;DR: The 4π array INDRA was used to detect nearly all charged products emitted in Ar + Ni collisions between 52 and 95 MeV/u as mentioned in this paper, and the charge, mass and excitation energy E ∗ of the quasi-projectiles have been reconstructed event by event.
Journal ArticleDOI
Temperatures and excitation energies of hot nuclei in the reactions of 32S+Ag and 16O+Ag at 30 MeV/nucleon.
R. Wada,D. Fabris,K. Hagel,G. Nebbia,Y. Lou,M. Gonin,J. B. Natowitz,R. Billerey,Brigitte Cheynis,A. Demeyer,D. Drain,D. Guinet,C. Pastor,L. Vagneron,K. Zaid,J. Alarja,A. Giorni,D. Heuer,C Morand,B. Viano,C. Mazur,C. Ng,S. Leray,R. Lucas,M. Ribrag,E. Tomasi +25 more
TL;DR: From the energy spectra and multiplicities of particles emitted from a fusion-like source the initial temperatures of the primary composite nuclei are determined and suggest that a plateau temperature near 6.5 MeV is reached above excitation energies of 3 MeV/nucleon.
Journal ArticleDOI
Evidence for spinodal decomposition in nuclear multifragmentation.
Bernard Borderie,G. Tabacaru,Ph. Chomaz,Maria Colonna,A. Guarnera,M. Pârlog,M.F. Rivet,G. Auger,Ch.O. Bacri,N. Bellaize,R. Bougault,Bertrand Bouriquet,R. Brou,Ph. Buchet,A. Chbihi,J. Colin,A. Demeyer,E. Galichet,E. Gerlic,D. Guinet,Sylvie Hudan,P. Lautesse,F. Lavaud,J.L. Laville,J.F. Lecolley,C. Leduc,R. Legrain,N. Le Neindre,O. Lopez,M. Louvel,A. M. Maskay,J. Normand,Piotr Pawłowski,E. Rosato,F. Saint-Laurent,J.C. Steckmeyer,B. Tamain,L. Tassan-Got,E. Vient,J.P. Wieleczko +39 more
TL;DR: Multifragmentation of a "fused system" was observed for central collisions between 32 MeV/nucleon 129Xe and (nat)Sn and the resulting charged products were well identified due to the high performances of the INDRA 4pi array.