First results from the INDRA-FAZIA apparatus on isospin diffusion in Ni 58,64 + Ni 58,64 systems at Fermi energies

INDRA-FAZIA Collaboration

doi:10.1103/PhysRevC.106.024603

First results from the INDRA-FAZIA apparatus on isospin diffusion in Ni 58,64 + Ni 58,64 systems at Fermi energies

INDRA-FAZIA Collaboration

Department of Physics

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8 Citations (Scopus)

Abstract

An investigation of the isospin equilibration process in the reactions Ni58,64+Ni58,64 at two bombarding energies in the Fermi regime (32 and 52 MeV/nucleon) is presented. Data have been acquired during the first experimental campaign of the coupled INDRA-FAZIA apparatus in GANIL. Selecting from peripheral to semicentral collisions, both the neutron content of the quasiprojectile residue and that of the light ejectiles coming from the quasiprojectile evaporation have been used as probes of the dynamical process of isospin diffusion between projectile and target for the asymmetric systems. The isospin transport ratio technique has been employed. The relaxation of the initial isospin imbalance with increasing centrality has been clearly evidenced. The isospin equilibration appears stronger for the reactions at 32 MeV/nucleon, as expected due to the longer projectile-target interaction time than at 52 MeV/nucleon. Coherent indications of isospin equilibration come from the quasiprojectile residue characteristics and from particles ascribed to the quasiprojectile decay.

Original language	English
Article number	024603
Journal	Physical Review C
Volume	106
Issue number	2
DOIs	https://doi.org/10.1103/PhysRevC.106.024603
Publication status	Published - 2022 Aug

Bibliographical note

Funding Information:
This work was partially supported by the National Research Foundation (NRF) of Korea (Grant No. 2018R1A5A1025563) and by the Spanish Ministerio de Economía y Empresa (PGC2018-096994-B-C22). We acknowledge support from Région Normandie under Réseau d'Intérêt Normand FIDNEOS (RIN/FIDNEOS). Many thanks are due to the accelerator staff of GANIL for delivering a very good quality beam and to the technical staff for the continuous support.

Publisher Copyright:
© 2022 American Physical Society.

ASJC Scopus subject areas

Nuclear and High Energy Physics

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10.1103/PhysRevC.106.024603

Cite this

@article{ece9ef04b8b545e19f0d28404b7ae8f9,

title = "First results from the INDRA-FAZIA apparatus on isospin diffusion in Ni 58,64 + Ni 58,64 systems at Fermi energies",

abstract = "An investigation of the isospin equilibration process in the reactions Ni58,64+Ni58,64 at two bombarding energies in the Fermi regime (32 and 52 MeV/nucleon) is presented. Data have been acquired during the first experimental campaign of the coupled INDRA-FAZIA apparatus in GANIL. Selecting from peripheral to semicentral collisions, both the neutron content of the quasiprojectile residue and that of the light ejectiles coming from the quasiprojectile evaporation have been used as probes of the dynamical process of isospin diffusion between projectile and target for the asymmetric systems. The isospin transport ratio technique has been employed. The relaxation of the initial isospin imbalance with increasing centrality has been clearly evidenced. The isospin equilibration appears stronger for the reactions at 32 MeV/nucleon, as expected due to the longer projectile-target interaction time than at 52 MeV/nucleon. Coherent indications of isospin equilibration come from the quasiprojectile residue characteristics and from particles ascribed to the quasiprojectile decay.",

author = "{INDRA-FAZIA Collaboration} and C. Ciampi and S. Piantelli and G. Casini and G. Pasquali and J. Quicray and L. Baldesi and S. Barlini and B. Borderie and R. Bougault and A. Camaiani and A. Chbihi and D. Dell'Aquila and M. Cicerchia and Due{\~n}as, {J. A.} and Q. Fable and D. Fabris and Frankland, {J. D.} and C. Frosin and T. G{\'e}nard and F. Gramegna and D. Gruyer and M. Henri and B. Hong and S. Kim and A. Kordyasz and T. Kozik and Kweon, {M. J.} and J. Lemari{\'e} and {Le Neindre}, N. and I. Lombardo and O. Lopez and T. Marchi and Nam, {S. H.} and A. Ordine and P. Ottanelli and J. Park and Park, {J. H.} and M. P{\^a}rlog and G. Poggi and A. Rebillard-Souli{\'e} and Stefanini, {A. A.} and S. Upadhyaya and S. Valdr{\'e} and G. Verde and E. Vient and M. Vigilante",

note = "Funding Information: This work was partially supported by the National Research Foundation (NRF) of Korea (Grant No. 2018R1A5A1025563) and by the Spanish Ministerio de Econom{\'i}a y Empresa (PGC2018-096994-B-C22). We acknowledge support from R{\'e}gion Normandie under R{\'e}seau d'Int{\'e}r{\^e}t Normand FIDNEOS (RIN/FIDNEOS). Many thanks are due to the accelerator staff of GANIL for delivering a very good quality beam and to the technical staff for the continuous support. Publisher Copyright: {\textcopyright} 2022 American Physical Society.",

year = "2022",

month = aug,

doi = "10.1103/PhysRevC.106.024603",

language = "English",

volume = "106",

journal = "Physical Review C",

issn = "2469-9985",

publisher = "American Physical Society",

number = "2",

}

TY - JOUR

T1 - First results from the INDRA-FAZIA apparatus on isospin diffusion in Ni 58,64 + Ni 58,64 systems at Fermi energies

AU - INDRA-FAZIA Collaboration

AU - Ciampi, C.

AU - Piantelli, S.

AU - Casini, G.

AU - Pasquali, G.

AU - Quicray, J.

AU - Baldesi, L.

AU - Barlini, S.

AU - Borderie, B.

AU - Bougault, R.

AU - Camaiani, A.

AU - Chbihi, A.

AU - Dell'Aquila, D.

AU - Cicerchia, M.

AU - Dueñas, J. A.

AU - Fable, Q.

AU - Fabris, D.

AU - Frankland, J. D.

AU - Frosin, C.

AU - Génard, T.

AU - Gramegna, F.

AU - Gruyer, D.

AU - Henri, M.

AU - Hong, B.

AU - Kim, S.

AU - Kordyasz, A.

AU - Kozik, T.

AU - Kweon, M. J.

AU - Lemarié, J.

AU - Le Neindre, N.

AU - Lombardo, I.

AU - Lopez, O.

AU - Marchi, T.

AU - Nam, S. H.

AU - Ordine, A.

AU - Ottanelli, P.

AU - Park, J.

AU - Park, J. H.

AU - Pârlog, M.

AU - Poggi, G.

AU - Rebillard-Soulié, A.

AU - Stefanini, A. A.

AU - Upadhyaya, S.

AU - Valdré, S.

AU - Verde, G.

AU - Vient, E.

AU - Vigilante, M.

N1 - Funding Information: This work was partially supported by the National Research Foundation (NRF) of Korea (Grant No. 2018R1A5A1025563) and by the Spanish Ministerio de Economía y Empresa (PGC2018-096994-B-C22). We acknowledge support from Région Normandie under Réseau d'Intérêt Normand FIDNEOS (RIN/FIDNEOS). Many thanks are due to the accelerator staff of GANIL for delivering a very good quality beam and to the technical staff for the continuous support. Publisher Copyright: © 2022 American Physical Society.

PY - 2022/8

Y1 - 2022/8

N2 - An investigation of the isospin equilibration process in the reactions Ni58,64+Ni58,64 at two bombarding energies in the Fermi regime (32 and 52 MeV/nucleon) is presented. Data have been acquired during the first experimental campaign of the coupled INDRA-FAZIA apparatus in GANIL. Selecting from peripheral to semicentral collisions, both the neutron content of the quasiprojectile residue and that of the light ejectiles coming from the quasiprojectile evaporation have been used as probes of the dynamical process of isospin diffusion between projectile and target for the asymmetric systems. The isospin transport ratio technique has been employed. The relaxation of the initial isospin imbalance with increasing centrality has been clearly evidenced. The isospin equilibration appears stronger for the reactions at 32 MeV/nucleon, as expected due to the longer projectile-target interaction time than at 52 MeV/nucleon. Coherent indications of isospin equilibration come from the quasiprojectile residue characteristics and from particles ascribed to the quasiprojectile decay.

AB - An investigation of the isospin equilibration process in the reactions Ni58,64+Ni58,64 at two bombarding energies in the Fermi regime (32 and 52 MeV/nucleon) is presented. Data have been acquired during the first experimental campaign of the coupled INDRA-FAZIA apparatus in GANIL. Selecting from peripheral to semicentral collisions, both the neutron content of the quasiprojectile residue and that of the light ejectiles coming from the quasiprojectile evaporation have been used as probes of the dynamical process of isospin diffusion between projectile and target for the asymmetric systems. The isospin transport ratio technique has been employed. The relaxation of the initial isospin imbalance with increasing centrality has been clearly evidenced. The isospin equilibration appears stronger for the reactions at 32 MeV/nucleon, as expected due to the longer projectile-target interaction time than at 52 MeV/nucleon. Coherent indications of isospin equilibration come from the quasiprojectile residue characteristics and from particles ascribed to the quasiprojectile decay.

UR - http://www.scopus.com/inward/record.url?scp=85137284529&partnerID=8YFLogxK

U2 - 10.1103/PhysRevC.106.024603

DO - 10.1103/PhysRevC.106.024603

M3 - Article

AN - SCOPUS:85137284529

SN - 2469-9985

VL - 106

JO - Physical Review C

JF - Physical Review C

IS - 2

M1 - 024603

ER -

First results from the INDRA-FAZIA apparatus on isospin diffusion in Ni 58,64 + Ni 58,64 systems at Fermi energies

Abstract

Bibliographical note

ASJC Scopus subject areas

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