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In-medium effects for nuclear matter in the Fermi energy domain

hal.structure.identifierLaboratoire de physique corpusculaire de Caen [LPCC]
dc.contributor.authorLOPEZ, O.
hal.structure.identifierLaboratoire de physique corpusculaire de Caen [LPCC]
dc.contributor.authorDURAND, D.
hal.structure.identifierLaboratoire de physique corpusculaire de Caen [LPCC]
dc.contributor.authorLEHAUT, G.
hal.structure.identifierInstitut de Physique Nucléaire d'Orsay [IPNO]
dc.contributor.authorBORDERIE, B.
hal.structure.identifierGrand Accélérateur National d'Ions Lourds [GANIL]
dc.contributor.authorFRANKLAND, J.D.
hal.structure.identifierInstitut de Physique Nucléaire d'Orsay [IPNO]
dc.contributor.authorRIVET, M.F.
hal.structure.identifierLaboratoire de physique corpusculaire de Caen [LPCC]
dc.contributor.authorBOUGAULT, R.
hal.structure.identifierGrand Accélérateur National d'Ions Lourds [GANIL]
dc.contributor.authorCHBIHI, A.
hal.structure.identifierInstitut de Physique Nucléaire d'Orsay [IPNO]
dc.contributor.authorGALICHET, E.
hal.structure.identifierInstitut de Physique Nucléaire de Lyon [IPNL]
dc.contributor.authorGUINET, D.
dc.contributor.authorLA COMMARA, M.
hal.structure.identifierLaboratoire de physique corpusculaire de Caen [LPCC]
dc.contributor.authorLE NEINDRE, N.
dc.contributor.authorLOMBARDO, I.
hal.structure.identifierEcole des applications militaires de l'énergie atomique [EAMEA]
dc.contributor.authorMANDUCI, L.
hal.structure.identifierCentre d'Etudes Nucléaires de Bordeaux Gradignan [CENBG]
hal.structure.identifierGrand Accélérateur National d'Ions Lourds [GANIL]
dc.contributor.authorMARINI, P.
hal.structure.identifierInstitut de Physique Nucléaire d'Orsay [IPNO]
dc.contributor.authorNAPOLITANI, P.
hal.structure.identifierLaboratoire de physique corpusculaire de Caen [LPCC]
dc.contributor.authorPÂRLOG, M.
dc.contributor.authorROSATO, E.
dc.contributor.authorSPADACCINI, G.
hal.structure.identifierLaboratoire de physique corpusculaire de Caen [LPCC]
dc.contributor.authorVIENT, E.
dc.contributor.authorVIGILANTE, M.
dc.date.created2014
dc.date.issued2014
dc.identifier.issn2469-9985
dc.description.abstractEnWe study nuclear stopping in central collisions for heavy-ion induced reactions in the Fermi energy domain, between $15$ and $100$ A\,\textrm{MeV}. Using the large dataset of exclusive measurements provided by the $4\pi$ array \emph{INDRA}, we determine the relative degree of stopping as a function of system mass and bombarding energy. We show that the stopping can be directly related to the transport properties in the nuclear medium. By looking specifically at free nucleons (here protons), we present for the first time a comprehensive body of experimental results concerning the mean free path, the nucleon-nucleon cross-section and in-medium effects in nuclear matter. It is shown that the mean free path exhibits a maximum at $\lambda_{NN}=9.5 \pm 2$ \textrm{fm}, around $E_{inc}=35-40$ A\,\textrm{MeV} incident energy and decreases toward an asymptotic value $\lambda_{NN}= 4.5 \pm 1$ \textrm{fm} at $E_{inc} = 100$ A\,\textrm{MeV}. After accounting for Pauli blocking of elastic nucleon-nucleon collisions, it is shown that the effective in-medium \emph{NN} cross section is further reduced compared to the free value in this energy range. Therefore, in-medium effects cannot be neglected in the Fermi energy range. These results bring new fundamental inputs for microscopic descriptions of nuclear reactions in the Fermi energy domain.
dc.language.isoen
dc.publisherAmerican Physical Society
dc.subject.enHeavy-ion induced reactions
dc.subject.enin-medium effects
dc.subject.ennuclear matter
dc.subject.enstopping
dc.title.enIn-medium effects for nuclear matter in the Fermi energy domain
dc.typeArticle de revue
dc.identifier.doi10.1103/PhysRevC.90.064602
dc.subject.halPhysique [physics]/Physique Nucléaire Expérimentale [nucl-ex]
dc.identifier.arxiv1409.0735
bordeaux.journalPhysical Review C
bordeaux.page064602
bordeaux.volume90
bordeaux.peerReviewedoui
hal.identifierin2p3-01066044
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//in2p3-01066044v1
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