Mass measurements towards doubly magic 78Ni: Hydrodynamics versus nuclear mass contribution in core-collapse supernovae

Simon Giraud; Laetitia Canete; Beyhan Bastin; Anu Kankainen; A.F. Fantina; F. Gulminelli; Pauline Ascher; Tommi Eronen; V. Girard Alcindor; Ari Jokinen; Afrina Khanam; Iain D. Moore; D.A. Nesterenko; F. De Oliveira Santos; Heikki Penttilä; C. Petrone; I. Pohjalainen; Antoine de Roubin; V. A. Rubchenya; Markus Vilen; Juha Äystö

doi:10.1016/j.physletb.2022.137309

Mass measurements towards doubly magic 78Ni: Hydrodynamics versus nuclear mass contribution in core-collapse supernovae

Simon Giraud, Laetitia Canete, Beyhan Bastin, Anu Kankainen^*, A.F. Fantina, F. Gulminelli, Pauline Ascher, Tommi Eronen, V. Girard Alcindor, Ari Jokinen, Afrina Khanam, Iain D. Moore, D.A. Nesterenko, F. De Oliveira Santos, Heikki Penttilä, C. Petrone, I. Pohjalainen, Antoine de Roubin, V. A. Rubchenya, Markus VilenJuha Äystö

^*Corresponding author for this work

Department of Applied Physics

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Abstract

We report the first high-precision mass measurements of the neutron-rich nuclei 74,75Ni and the clearly identified ground state of 76Cu, along with a more precise mass-excess value of 78Cu, performed with the double Penning trap JYFLTRAP at the Ion Guide Isotope Separator On-Line (IGISOL) facility. These new results lead to a quantitative estimation of the quenching for the neutron shell gap. The impact of this shell quenching on core-collapse supernova dynamics is specifically tested using a dedicated statistical equilibrium approach that allows a variation of the mass model independent of the other microphysical inputs. We conclude that the impact of nuclear masses is strong when implemented using a fixed trajectory as in the previous studies, but the effect is substantially reduced when implemented self-consistently in the simulation.

Original language	English
Article number	137309
Pages (from-to)	1-6
Number of pages	6
Journal	Physics Letters B
Volume	833
DOIs	https://doi.org/10.1016/j.physletb.2022.137309
Publication status	Published - 16 Jul 2022
MoE publication type	A1 Journal article-refereed

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Giraud, S., Canete, L., Bastin, B., Kankainen, A., Fantina, A. F., Gulminelli, F., Ascher, P., Eronen, T., Alcindor, V. G., Jokinen, A., Khanam, A., Moore, I. D., Nesterenko, D. A., Santos, F. D. O., Penttilä, H., Petrone, C., Pohjalainen, I., de Roubin, A., Rubchenya, V. A., ... Äystö, J. (2022). Mass measurements towards doubly magic 78Ni: Hydrodynamics versus nuclear mass contribution in core-collapse supernovae. Physics Letters B, 833, 1-6. Article 137309. https://doi.org/10.1016/j.physletb.2022.137309

@article{fbcca159dbd74a198289973811209b49,

title = "Mass measurements towards doubly magic 78Ni: Hydrodynamics versus nuclear mass contribution in core-collapse supernovae",

abstract = "We report the first high-precision mass measurements of the neutron-rich nuclei 74,75Ni and the clearly identified ground state of 76Cu, along with a more precise mass-excess value of 78Cu, performed with the double Penning trap JYFLTRAP at the Ion Guide Isotope Separator On-Line (IGISOL) facility. These new results lead to a quantitative estimation of the quenching for the neutron shell gap. The impact of this shell quenching on core-collapse supernova dynamics is specifically tested using a dedicated statistical equilibrium approach that allows a variation of the mass model independent of the other microphysical inputs. We conclude that the impact of nuclear masses is strong when implemented using a fixed trajectory as in the previous studies, but the effect is substantially reduced when implemented self-consistently in the simulation.",

author = "Simon Giraud and Laetitia Canete and Beyhan Bastin and Anu Kankainen and A.F. Fantina and F. Gulminelli and Pauline Ascher and Tommi Eronen and Alcindor, {V. Girard} and Ari Jokinen and Afrina Khanam and Moore, {Iain D.} and D.A. Nesterenko and Santos, {F. De Oliveira} and Heikki Penttil{\"a} and C. Petrone and I. Pohjalainen and {de Roubin}, Antoine and Rubchenya, {V. A.} and Markus Vilen and Juha {\"A}yst{\"o}",

note = "| openaire: EC/H2020/654002/EU//ENSAR2 | openaire: EC/H2020/771036/EU//MAIDEN ",

year = "2022",

month = jul,

day = "16",

doi = "10.1016/j.physletb.2022.137309",

language = "English",

volume = "833",

pages = "1--6",

journal = "Physics Letters B",

issn = "0370-2693",

publisher = "Elsevier",

}

Giraud, S, Canete, L, Bastin, B, Kankainen, A, Fantina, AF, Gulminelli, F, Ascher, P, Eronen, T, Alcindor, VG, Jokinen, A, Khanam, A, Moore, ID, Nesterenko, DA, Santos, FDO, Penttilä, H, Petrone, C, Pohjalainen, I, de Roubin, A, Rubchenya, VA, Vilen, M & Äystö, J 2022, 'Mass measurements towards doubly magic 78Ni: Hydrodynamics versus nuclear mass contribution in core-collapse supernovae', Physics Letters B, vol. 833, 137309, pp. 1-6. https://doi.org/10.1016/j.physletb.2022.137309

TY - JOUR

T1 - Mass measurements towards doubly magic 78Ni: Hydrodynamics versus nuclear mass contribution in core-collapse supernovae

AU - Giraud, Simon

AU - Canete, Laetitia

AU - Bastin, Beyhan

AU - Kankainen, Anu

AU - Fantina, A.F.

AU - Gulminelli, F.

AU - Ascher, Pauline

AU - Eronen, Tommi

AU - Alcindor, V. Girard

AU - Jokinen, Ari

AU - Khanam, Afrina

AU - Moore, Iain D.

AU - Nesterenko, D.A.

AU - Santos, F. De Oliveira

AU - Penttilä, Heikki

AU - Petrone, C.

AU - Pohjalainen, I.

AU - de Roubin, Antoine

AU - Rubchenya, V. A.

AU - Vilen, Markus

AU - Äystö, Juha

N1 - | openaire: EC/H2020/654002/EU//ENSAR2 | openaire: EC/H2020/771036/EU//MAIDEN

PY - 2022/7/16

Y1 - 2022/7/16

N2 - We report the first high-precision mass measurements of the neutron-rich nuclei 74,75Ni and the clearly identified ground state of 76Cu, along with a more precise mass-excess value of 78Cu, performed with the double Penning trap JYFLTRAP at the Ion Guide Isotope Separator On-Line (IGISOL) facility. These new results lead to a quantitative estimation of the quenching for the neutron shell gap. The impact of this shell quenching on core-collapse supernova dynamics is specifically tested using a dedicated statistical equilibrium approach that allows a variation of the mass model independent of the other microphysical inputs. We conclude that the impact of nuclear masses is strong when implemented using a fixed trajectory as in the previous studies, but the effect is substantially reduced when implemented self-consistently in the simulation.

AB - We report the first high-precision mass measurements of the neutron-rich nuclei 74,75Ni and the clearly identified ground state of 76Cu, along with a more precise mass-excess value of 78Cu, performed with the double Penning trap JYFLTRAP at the Ion Guide Isotope Separator On-Line (IGISOL) facility. These new results lead to a quantitative estimation of the quenching for the neutron shell gap. The impact of this shell quenching on core-collapse supernova dynamics is specifically tested using a dedicated statistical equilibrium approach that allows a variation of the mass model independent of the other microphysical inputs. We conclude that the impact of nuclear masses is strong when implemented using a fixed trajectory as in the previous studies, but the effect is substantially reduced when implemented self-consistently in the simulation.

UR - https://www.sciencedirect.com/science/article/pii/S0370269322004439?via%3Dihub

UR - http://www.scopus.com/inward/record.url?scp=85134938424&partnerID=8YFLogxK

U2 - 10.1016/j.physletb.2022.137309

DO - 10.1016/j.physletb.2022.137309

M3 - Article

SN - 0370-2693

VL - 833

SP - 1

EP - 6

JO - Physics Letters B

JF - Physics Letters B

M1 - 137309

ER -

Mass measurements towards doubly magic 78Ni: Hydrodynamics versus nuclear mass contribution in core-collapse supernovae

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