Laboratoire de Physique Corpusculaire de Caen

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LPC CAEN
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6, bd du Maréchal Juin
14050 CAEN Cedex
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Contacts

M. Nicolas Le Neindre

Chercheur CNRS

Groupe : Dynamique et thermodynamique nucléaire

Tél : +33 2 31 45 24 10

PUBLICATIONS

[hal-01582794] Isotopic identification using Pulse Shape Analysis of current signals from silicon detectors: Recent results from the FAZIA collaboration

7 septembre 2017

The FAZIA apparatus exploits Pulse Shape Analysis (PSA) to identify nuclear fragments stopped in the first layer of a Silicon-Silicon-CsI(Tl) detector telescope. In this work, for the first time, we show that the isotopes of fragments having atomic number as high as Z∼20 can be identified. Such (...)

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[in2p3-00867220] Coulomb chronometry to probe the decay mechanism of hot nuclei

13 mars 2017

In 129 Xe+ nat Sn central collisions from 8 to 25 MeV/A, the three-fragment exit channel occurs with a significant cross section. We show that these fragments arise from two successive binary splittings of a heavy composite system. The sequence of fragment production is determined. Strong (...)

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[in2p3-01348951] New semi-automatic method for reaction product charge and mass identification in heavy-ion collisions at Fermi energies

3 février 2017

This article presents a new semi-automatic method for charge and mass identification of charged nuclear fragments using either ∆E − E correlations between measured energy losses in two successive detectors or correlations between charge signal amplitude and rise time in a single silicon detector, (...)

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[in2p3-01345974] Reaction and fusion cross sections for the near-symmetric system $^{129}$Xe+$^{nat}$Sn from $8$ to $35$ $AMeV$

20 octobre 2016

item[Background]Heavy-ion reactions from barrier up to Fermi energy. \item[Purpose]Reaction and fusion cross sections determination. Fusion reactions induced by $^129Xe$ projectiles on $^natSn$ targets for energies ranging from $8$ A.MeV to $35$ A.MeV were measured with the INDRA (...)

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[in2p3-01282609] Probing clustering in excited alpha-conjugate nuclei

30 mars 2016

The fragmentation of quasi-projectiles from the nuclear reaction $^40$Ca+$^12$C at 25 MeV per nucleon bombarding energy was used to produce $\alpha$-emission sources. From a careful selection of these sources provided by a complete detection and from comparisons with models of sequential and (...)

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6 octobre 2015

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[in2p3-01120218] Low-temperature technique of thin silicon ion implanted epitaxial detectors

4 juillet 2015

A new technique of large-area thin ion implanted silicon detectors has been developed within the R&D performed by the FAZIA Collaboration. The essence of the technique is the application of a lowtemperature baking process instead of high-temperature annealing. This thermal treatment is (...)

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[hal-00347268] Isospin diffusion in semi-peripheral $^{58}Ni$+$^{197}Au$ collisions at intermediate energies (I): Experimental results

3 juillet 2015

Isospin diffusion in semi-peripheral collisions is probed as a function of the dissipated energy by studying two systems $^58Ni$+$^58Ni$ and $^58Ni$+$^197Au$, over the incident energy range 52-74\AM. A close examination of the multiplicities of light products in the forward part of phase space (...)

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[in2p3-01110422] Production cross sections for intermediate mass fragments from dynamical and statistical decay of projectile-like fragments in $^{124}$Sn + $^{64}$Ni and $^{112}$Sn + $^{58}$Ni collisions at 35 A MeV

3 juillet 2015

Background: In heavy-ion collisions at intermediate energies the production of light charged particles and intermediate mass fragments (IMFs) is due to different reaction mechanisms and different time scales, ranging from fast dynamical processes to statistical emission from the equilibrated (...)

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[hal-00737435] Nuclear multifragmentation time-scale and fluctuations of largest fragment size

3 juillet 2015

Distributions of the largest fragment charge, Zmax, in multifragmentation reactions around the Fermi energy can be decomposed into a sum of a Gaussian and a Gumbel distribution, whereas at much higher or lower energies one or the other distribution is asymptotically dominant. We demonstrate the (...)

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[hal-00008225] Multifragmentation of very heavy nuclear systems (III): fragment velocity correlations and event topology at freeze-out.

3 juillet 2015

Kinetic energy spectra and fragment velocity correlations, simulated by means of stochastic mean-field calculations, are successfully confronted with experimental data for single multifragmenting sources prepared at the same excitation energy per nucleon in 32 AMeV 129Xe+natSn and 36 AMeV (...)

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[hal-00008456] Estimate of average freeze-out volume in multifragmentation events

3 juillet 2015

An estimate of the average freeze-out volume for multifragmentation events is presented. Values of volumes are obtained by means of a simulation using the experimental charged product partitions measured by the 4pi multidetector INDRA for 129Xe central collisions on Sn at 32 AMeV incident (...)

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[hal-00345772] Bimodal behavior of the heaviest fragment distribution in projectile fragmentation

3 juillet 2015

The charge distribution of the heaviest fragment detected in the decay of quasi-projectiles produced in intermediate energy heavy-ion collisions has been observed to be bimodal. This feature is expected as a generic signal of phase transition in non-extensive systems. In this paper we present (...)

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3 juillet 2015

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Isospin Effects Studied with the CHIMERA Detector at 35 MeV/Nucleon

6 janvier 2006

The yield of light charged particles and intermediate mass fragments is studied for the neutron-rich, $^124$Sn+$^64$Ni, and neutron-poor, $^112$Sn+$^58$Ni, reactions at 35 MeV/nucleon as a function of the impact parameter. Our main observations are: (i) The yields of $^1$H, $^3$He and $^4$He (...)

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Evidence for Spinodal Decomposition in Nuclear Multifragmentation

18 octobre 2005

Multifragmentation of a `fused system\'\' was observed for central collisions between 32 MeV/nucleon 129Xe and natSn. Most of the resulting charged products were well identified thanks to the high performances of the INDRA 4pi array. Experimental higher-order charge correlations for fragments (...)

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Estimate of average freeze-out volume in multifragmentation events

5 septembre 2005

An estimate of the average freeze-out volume for multifragmentation events is presented. Values of volumes are obtained by means of a simulation using the experimental charged product partitions measured by the 4pi multidetector INDRA for 129Xe central collisions on Sn at 32 AMeV incident (...)

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Multifragmentation of very heavy nuclear systems (III): fragment velocity correlations and event topology at freeze-out.

26 août 2005

Kinetic energy spectra and fragment velocity correlations, simulated by means of stochastic mean-field calculations, are successfully confronted with experimental data for single multifragmenting sources prepared at the same excitation energy per nucleon in 32 AMeV 129Xe+natSn and 36 AMeV (...)

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A study of nuclear stopping in central symmetric nuclear collisions at intermediate energies

14 mars 2005

Nuclear stopping has been investigated in central symmetric nuclear collisions at intermediate energies. Firstly, it is found that the isotropy ratio, Riso, reaches a minimum near the Fermi energy and saturates or slowly increases depending on the mass of the system as the beam energy (...)

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8 février 2005

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Liquid-gas phase transition in hot nuclei: correlation between dynamical and thermodynamical signals

11 janvier 2005

The dynamics and thermodynamics of phase transition in hot nuclei are studied through experimental results on multifragmentation of heavy systems (A$geq$200) formed in central heavy ion collisions. Different signals indicative of a phase transition studied in the INDRA collaboration are (...)

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Correlations between signals of the liquid-gas phase transition in nuclei

6 décembre 2004

Finite systems such as atomic nuclei present at phase transition specific features different from those observed at the thermodynamic limit. Several characteristic signals were found in samples of events resulting from heavy ion collisions at and above the Fermi energy. The concomitant (...)

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23 avril 2004

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16 avril 2004

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16 avril 2004

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7 novembre 2003

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24 juillet 2003

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11 juin 2003

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Multifragmentation process for different mass asymmetry in the entrance channel around the fermi energy

30 septembre 2002

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Mass and charge identification of fragments detected with the chimera silicon-CsI(Tl) telescopes

19 septembre 2002

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11 juin 2002

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11 juin 2002

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11 juin 2002

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22 mai 2002

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12 février 2002

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17 avril 2001

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16 janvier 2001

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