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The behaviour of constrained caloric curves as ultimate signature of a phase transition for hot nuclei
Borderie B., Galichet E., Rivet M.F., Piantelli S., R. Raduta A. et al
Dans NN2012 Proceedings - 11th International Conference on Nucleus-Nucleus Collisions (NN2012), San Antonio, Texas : États-Unis (2012) - http://hal.archives-ouvertes.fr/hal-00720759
Physics/Nuclear Experiment
Physics/Nuclear Theory
The behaviour of constrained caloric curves as ultimate signature of a phase transition for hot nuclei
B. Borderie1, E. Galichet1, M.F. Rivet1, S. Piantelli2, Ad. R. Raduta3, E. Bonnet4, A. Chbihi4, J. D. Frankland4, R. Bougault5, O. Lopez5, E. Vient5, N. Le Neindre5, M. Pârlog5, D. Guinet6, Ph. Lautesse6, E. Rosato7, M. Vigilante7, G. Spadaccini7, R. Roy8
1:  IPNO - Institut de Physique Nucléaire d'Orsay
http://ipnweb.in2p3.fr
CNRS : UMR8608 – IN2P3 – Université Paris XI - Paris Sud
IPN - 15, rue Georges Clemenceau - 91406 ORSAY CEDEX
France
2:  INFN, Sezione di Firenze - Istituto Nazionale di Fisica Nucleare, Sezione di Firenze
http://www.fi.infn.it/
INFN
Sede di Sesto: Via G. Sansone 1 I 50019 Sesto F. (FI)
Italy
3:  NIPNE - Horia Hulubei National Institute of Physics and Nuclear Engineering
http://www.nipne.ro
IFIN-HH
Str. Atomistilor no.407 P.O.BOX MG-6 76900 Bucharest - Magurele
Romania
4:  GANIL - Grand Accélérateur National d'Ions Lourds
http://www.ganil-spiral2.eu
CNRS : UPR3266 – IN2P3 – CEA : DSM/GANIL
Bvd Henri Becquerel - BP 55027 - 14076 CAEN CEDEX 5
France
5:  LPCC - Laboratoire de Physique Corpusculaire de Caen
http://www.lpc-caen.in2p3.fr/
CNRS : UMR6534 – IN2P3 – Université de Caen Basse-Normandie – Ecole Nationale Supérieure d'Ingénieurs de Caen
ENSICAEN - 6, boulevard du Marechal Juin 14050 Caen Cedex
France
6:  IPNL - Institut de Physique Nucléaire de Lyon
http://www.ipnl.in2p3.fr/
CNRS : UMR5822 – IN2P3 – Université Claude Bernard - Lyon I
France
7:  INFN, Sezione di Napoli - Istituto Nazionale di Fisica Nucleare, Sezione di Napoli
http://www.na.infn.it/
INFN
Complesso Univ. di Monte S. Angelo Via Cintia - 80126 Napoli
Italy
8:  Laboratoire de Physique Nucléaire
Universite Laval (Quebec) - Canada
Département de Physique, de Génie Physique et d'Optique, Université Laval, Québec, Canada G1K 7P4
Canada
Dynamique et thermodynamique nucléaire
Simulations based on experimental data obtained from multifragmenting quasifused nuclei produced in central 129Xe + natSn collisions have been used to deduce event by event freeze-out properties on the thermal excitation energy range 4-12 AMeV. From these properties and temperatures deduced from proton transverse momentum fluctuations constrained caloric curves have been built. At constant average volumes caloric curves exhibit a monotonous behaviour whereas for constrained pressures a backbending is observed. Such results support the existence of a first order phase transition for hot nuclei.
English
2012-07-20

Journal of Physics: Conference Series
Publisher Institute of Physics: Open Access Journals
ISSN 1742-6588 (eISSN : 1742-6596)
NN2012 Proceedings
international
Invited conference talk
2013
420
012081

11th International Conference on Nucleus-Nucleus Collisions (NN2012)
2012-05-27
2012-06-01
San Antonio, Texas
United States

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