R
R. Dayras
Researcher at DSM
Publications - 158
Citations - 3386
R. Dayras is an academic researcher from DSM. The author has contributed to research in topics: Nucleon & Charged particle. The author has an hindex of 35, co-authored 156 publications receiving 3250 citations.
Papers
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Journal ArticleDOI
INDRA, a 4π charged product detection array at GANIL
J. Pouthas,Bernard Borderie,R. Dayras,E. Plagnol,M.F. Rivet,F. Saint-Laurent,J.C. Steckmeyer,G. Auger,Ch.O. Bacri,S. Barbey,Antoine Barbier,A. Benkirane,J. Benlliure,B. Berthier,E. Bougamont,P. Bourgault,P. Box,R. Bzyl,B. Cahan,Y. Cassagnou,D. Charlet,J.L. Charvet,A. Chbihi,T. Clerc,N. Copinet,D. Cussol,M. Engrand,Julien Gautier,Y. Huguet,O. Jouniaux,J.L. Laville,P. Le Botlan,A. Leconte,R. Legrain,P. Lelong,M. Le Guay,L. Martina,C. Mazur,P. Mosrin,L. Olivier,J.P. Passerieux,S. Pierre,B. Piquet,E. Plaige,E. C. Pollacco,B. Raine,A. Richard,J. Ropert,C. Spitaels,L. Stab,D. Sznajderman,L. Tassan-Got,J. Tillier,M. Tripon,P. Vallerand,C. Volant,P. Volkov,J.P. Wieleczko,G. Wittwer +58 more
TL;DR: The INDRA detector as discussed by the authors is a highly segmented detector for light charged particles and fragments, which covers geometrically 90% of the 4π solid angle and has very low detection thresholds.
Journal ArticleDOI
Fragmentation studies with the CHIMERA detector at LNS in Catania: recent progress
Angelo Pagano,Monica Alderighi,F. Amorini,A. Anzalone,L. Arena,L. Auditore,V. Baran,M. Bartolucci,I. Berceanu,J. Blicharska,J. Brzychczyk,A. Bonasera,B. Borderie,R. Bougault,M. Bruno,G. Cardella,S. Cavallaro,M. B. Chatterjee,A. Chbihi,J. Cibor,Maria Colonna,M. D'Agostino,R. Dayras,E. De Filippo,M. Di Toro,W. Gawlikowicz,E. Geraci,F. Giustolisi,A. Grzeszczuk,P. Guazzoni,D. Guinet,M. Iacono-Manno,S. Kowalski,E. La Guidara,G. Lanzanó,G. Lanzalone,N. Le Neindre,S. M. Li,S. Lo Nigro,C. Maiolino,Z. Majka,G. Manfredi,T. Paduszynski,M. Papa,M. Petrovici,E. Piasecki,S. Pirrone,R. Planeta,G. Politi,Amalia Pop,F. Porto,M.F Rivet,E. Rosato,F. Rizzo,S. Russo,P. Russotto,M. Sassi,G.R. Sechi,V. Simion,K. Siwek-Wilczyńska,I. Skwira,M. L. Sperduto,J.C. Steckmeyer,L. Swiderski,A. Trifiro,M. Trimarchi,G. Vannini,Mariano Vigilante,J.P. Wieleczko,J. Wilczynski,H. Wu,Zhigang Xiao,L. Zetta,W. Zipper +73 more
TL;DR: In this paper, the authors present results of recent analysis concerning the production of intermediate mass fragments (IMF) in semi-peripheral collisions, combined with theoretical Boltzmann-Nordheim-Vlasov simulations clearly demonstrate the presence of very fast processes of IMF production in the overlapping region of the target and projectile nuclei during re-separation, i.e. in the time scale comparable with the collision time.
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.