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Author Davesne, D.; Holt, J.W.; Pastore, A.; Navarro, J.
Title Effect of three-body forces on response functions in infinite neutron matter Type Journal Article
Year 2015 Publication Physical Review C Abbreviated Journal Phys. Rev. C
Volume (down) 91 Issue 1 Pages 014323 - 7pp
Keywords
Abstract We study the impact of three-body forces on the response functions of cold neutron matter. These response functions are determined in the random phase approximation from a residual interaction expressed in terms of Landau parameters. Special attention is paid to the noncentral part, including all terms allowed by the relevant symmetries. Using Landau parameters derived from realistic nuclear two-and three-body forces grounded in chiral effective field theory, we find that the three-body term has a strong impact on the excited states of the system and in the static and long-wavelength limit of the response functions for which a new exact formula is established.
Address [Davesne, D.] Univ Lyon, F-69003 Lyon, France, Email: davesne@ipnl.in2p3.fr
Corporate Author Thesis
Publisher Amer Physical Soc Place of Publication Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0556-2813 ISBN Medium
Area Expedition Conference
Notes WOS:000349353100001 Approved no
Is ISI yes International Collaboration yes
Call Number IFIC @ pastor @ Serial 2111
Permanent link to this record
 
 
Author Davesne, D.; Navarro, J.; Becker, P.; Jodon, R.; Meyer, J.; Pastore, A.
Title Extended Skyrme pseudopotential deduced from infinite nuclear matter properties Type Journal Article
Year 2015 Publication Physical Review C Abbreviated Journal Phys. Rev. C
Volume (down) 91 Issue 6 Pages 064303 - 6pp
Keywords
Abstract We discuss the contributions to the equation of state for the NlLO Skyrme pseudopotential (l = 2,3). We show that by adding fourth- and sixth-order gradient terms, it is possible to fairly reproduce the spin/isospin decomposition of an equation of state obtained from ab initio methods. Moreover, by inspecting the partial-wave decomposition of the equation of state, we show for the first time a possible way to add explicit constraints on the sign of the tensor terms of the Skyrme interaction.
Address [Davesne, D.; Becker, P.; Jodon, R.; Meyer, J.] Univ Lyon, F-69003 Lyon, France
Corporate Author Thesis
Publisher Amer Physical Soc Place of Publication Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0556-2813 ISBN Medium
Area Expedition Conference
Notes WOS:000355622200003 Approved no
Is ISI yes International Collaboration yes
Call Number IFIC @ pastor @ Serial 2251
Permanent link to this record
 
 
Author Pastore, A.; Martini, M.; Davesne, D.; Navarro, J.; Goriely, S.; Chamel, N.
Title Linear response theory and neutrino mean free path using Brussels-Montreal Skyrme functionals Type Journal Article
Year 2014 Publication Physical Review C Abbreviated Journal Phys. Rev. C
Volume (down) 90 Issue 2 Pages 025804 - 11pp
Keywords
Abstract The Brussels-Montreal Skyrme functionals have been successful in describing properties of both finite nuclei and infinite homogeneous nuclear matter. In their latest version, these functionals have been equipped with two extra density-dependent terms in order to reproduce simultaneously ground state properties of nuclei and infinite nuclear matter properties while avoiding at the same time the arising of ferromagnetic instabilities. In the present article, we extend our previous results of the linear response theory to include such extra terms at both zero and finite temperature in pure neutron matter. The resulting formalism is then applied to derive the neutrino mean free path. The predictions from the Brussels-Montreal Skyrme functionals are compared with ab initio methods.
Address [Pastore, A.; Martini, M.; Goriely, S.; Chamel, N.] Univ Libre Brussels, Inst Astron & Astrophys, B-1050 Brussels, Belgium
Corporate Author Thesis
Publisher Amer Physical Soc Place of Publication Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0556-2813 ISBN Medium
Area Expedition Conference
Notes WOS:000341027800009 Approved no
Is ISI yes International Collaboration yes
Call Number IFIC @ pastor @ Serial 1901
Permanent link to this record
 
 
Author Davesne, D.; Meyer, J.; Pastore, A.; Navarro, J.
Title Partial wave decomposition of the N3LO equation of state Type Journal Article
Year 2015 Publication Physica Scripta Abbreviated Journal Phys. Scr.
Volume (down) 90 Issue 11 Pages 114002 - 6pp
Keywords nuclear structure; equation of state; effective theory
Abstract By means of a partial wave decomposition, we separate their contributions to the equation of state (EoS) of symmetric nuclear matter for the N3LO pseudo-potential. In particular, we show that although both the tensor and the spin-orbit terms do not contribute to the EoS, they give a non-vanishing contribution to the separate (JLS) channels.
Address [Davesne, D.; Meyer, J.] Univ Lyon 1, CNRS, IN2P3, Inst Phys Nucl Lyon,UMR 5822, F-69622 Villeurbanne, France, Email: davesne@ipnl.in2p3.fr;
Corporate Author Thesis
Publisher Iop Publishing Ltd Place of Publication Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0031-8949 ISBN Medium
Area Expedition Conference
Notes WOS:000366871100003 Approved no
Is ISI yes International Collaboration yes
Call Number IFIC @ pastor @ Serial 2508
Permanent link to this record
 
 
Author Davesne, D.; Pastore, A.; Navarro, J.
Title Linear response theory in asymmetric nuclear matter for Skyrme functionals including spin-orbit and tensor terms Type Journal Article
Year 2014 Publication Physical Review C Abbreviated Journal Phys. Rev. C
Volume (down) 89 Issue 4 Pages 044302 - 14pp
Keywords
Abstract The formalism of linear response theory for a Skyrme functional including spin-orbit and tensor terms is generalized to the case of infinite nuclear matter with arbitrary isospin asymmetry. Response functions are obtained by solving an algebraic system of equations, which is explicitly given. Spin-isospin strength functions are analyzed varying the conditions of density, momentum transfer, asymmetry, and temperature. The presence of instabilities, including the spinodal one, is studied by means of the static susceptibility.
Address [Davesne, D.] Univ Lyon, F-69003 Lyon, France, Email: davesne@ipnl.in2p3.fr
Corporate Author Thesis
Publisher Amer Physical Soc Place of Publication Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0556-2813 ISBN Medium
Area Expedition Conference
Notes WOS:000334296000003 Approved no
Is ISI yes International Collaboration yes
Call Number IFIC @ pastor @ Serial 1758
Permanent link to this record
 
 
Author Batail, L.; Davesne, D.; Peru, S.; Becker, P.; Pastore, A.; Navarro, J.
Title A three-ranged Gogny interaction in touch with pion exchange: promising results to improve infinite matter properties Type Journal Article
Year 2023 Publication European Physical Journal A Abbreviated Journal Eur. Phys. J. A
Volume (down) 59 Issue 7 Pages 173 - 11pp
Keywords
Abstract We suggest a new Gogny-type finite-range effective interaction including a third Gaussian in the central term. Based on simple arguments valid for an arbitrary radial form factor, the three ranges are obtained in connection with physical grounds, relating them to one-boson exchange interactions. Moreover, some parameters of the longest range are fixed through the G-matrix elements of the One Pion Exchange Potential. On top of giving a fairly good description of atomic nuclei properties comparable with other existing parametrisations, the resulting interaction leads to a remarkable improvement of some infinite matter properties that are relevant for astrophysical calculations.
Address [Batail, L.] Univ Libre Bruxelles, Inst Astron & Astrophys, CP 226,Blvd Triomphe, B-1050 Brussels, Belgium, Email: lysandra.batail@ulb.be;
Corporate Author Thesis
Publisher Springer Place of Publication Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 1434-6001 ISBN Medium
Area Expedition Conference
Notes WOS:001037384800001 Approved no
Is ISI yes International Collaboration yes
Call Number IFIC @ pastor @ Serial 5592
Permanent link to this record
 
 
Author Becker, P.; Davesne, D.; Meyer, J.; Pastore, A.; Navarro, J.
Title Tools for incorporating a D-wave contribution in Skyrme energy density functionals Type Journal Article
Year 2015 Publication Journal of Physics G Abbreviated Journal J. Phys. G
Volume (down) 42 Issue 3 Pages 034001 - 19pp
Keywords energy density functional; D-wave; Skyrme pseudo-potential; linear response theory
Abstract The possibility of adding a D-wave term to the standard Skyrme effective interaction has been widely considered in the past. Such a term has been shown to appear in the next-to-next-to-leading order of the Skyrme pseudo-potential. The aim of the present article is to provide the necessary tools to incorporate this term in a fitting procedure: first, a mean-field equation written in spherical symmetry in order to describe spherical nuclei and second, the response function to detect unphysical instabilities. With these tools it will be possible to build a new fitting procedure to determine the coupling constants of the new functional.
Address [Becker, P.; Davesne, D.; Meyer, J.] Univ Lyon, F-69622 Lyon, France, Email: apastore@ulb.ac.be
Corporate Author Thesis
Publisher Iop Publishing Ltd Place of Publication Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0954-3899 ISBN Medium
Area Expedition Conference
Notes WOS:000353300200002 Approved no
Is ISI yes International Collaboration yes
Call Number IFIC @ pastor @ Serial 2202
Permanent link to this record
 
 
Author Pastore, A.; Davesne, D.; Navarro, J.
Title Nuclear matter response function with a central plus tensor Landau interaction Type Journal Article
Year 2014 Publication Journal of Physics G Abbreviated Journal J. Phys. G
Volume (down) 41 Issue 5 Pages 055103 - 17pp
Keywords Landau; random phase approximation; phenomenological interactions; tensor
Abstract We present a method to obtain response functions in the random phase approximation (RPA) based on a residual interaction described in terms of Landau parameters with central plus tensor contributions. The response functions keep the explicit momentum dependence of the RPA, in contrast with the traditional Landau approximation. Results for symmetric nuclear matter and pure neutron matter are presented using Landau parameters derived from finite-range interactions, both phenomenological and microscopic. We study the convergence of response functions as the number of Landau parameters is increased.
Address [Pastore, A.; Navarro, J.] Univ Libre Brussels, Inst Astron & Astrophys, B-1050 Brussels, Belgium, Email: apastore@ulb.ac.be
Corporate Author Thesis
Publisher Iop Publishing Ltd Place of Publication Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0954-3899 ISBN Medium
Area Expedition Conference
Notes WOS:000334662500015 Approved no
Is ISI yes International Collaboration yes
Call Number IFIC @ pastor @ Serial 1750
Permanent link to this record
 
 
Author Davesne, D.; Pastore, A.; Navarro, J.
Title Fitting (NLO)-L-3 pseudo-potentials through central plus tensor Landau parameters Type Journal Article
Year 2014 Publication Journal of Physics G Abbreviated Journal J. Phys. G
Volume (down) 41 Issue 6 Pages 065104 - 12pp
Keywords Landau parameters; (NLO)-L-3; phenomenological interactions; fitting methods
Abstract Landau parameters determined from phenomenological finite-range interactions are used to get an estimation of next-to-next-to-next-to-leading order ((NLO)-L-3) pseudo-potentials parameters. The parameter sets obtained in this way are shown to lead to consistent results concerning saturation properties. The uniqueness of this procedure is discussed, and an estimate of the error induced by the truncation at (NLO)-L-3 is given.
Address [Davesne, D.] Univ Lyon, F-69622 Lyon, France, Email: davesne@inpl.in2p3.fr
Corporate Author Thesis
Publisher Iop Publishing Ltd Place of Publication Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0954-3899 ISBN Medium
Area Expedition Conference
Notes WOS:000338425100009 Approved no
Is ISI yes International Collaboration yes
Call Number IFIC @ pastor @ Serial 1838
Permanent link to this record
 
 
Author Davesne, D.; Pastore, A.; Navarro, J.
Title Skyrme effective pseudopotential up to the next-to-next-to-leading order Type Journal Article
Year 2013 Publication Journal of Physics G Abbreviated Journal J. Phys. G
Volume (down) 40 Issue 9 Pages 095104 - 8pp
Keywords
Abstract The explicit form of the next-to-next-to-leading order ((NLO)-L-2) of the Skyrme effective pseudopotential compatible with all required symmetries and especially with gauge invariance is presented in a Cartesian basis. It is shown in particular that for such a pseudopotential there is no spin-orbit contribution and that the D-wave term suggested in the original Skyrme formulation does not satisfy the invariance properties. The six new (NLO)-L-2 terms contribute to both the equation of state and the Landau parameters. These contributions to symmetric nuclear matter are given explicitly and discussed.
Address [Davesne, D.] Univ Lyon, F-69622 Lyon, France, Email: davesne@ipnl.in2p3.fr
Corporate Author Thesis
Publisher Iop Publishing Ltd Place of Publication Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0954-3899 ISBN Medium
Area Expedition Conference
Notes WOS:000323135200010 Approved no
Is ISI yes International Collaboration yes
Call Number IFIC @ pastor @ Serial 1558
Permanent link to this record