Probing the quantum phase transition near N ≈ 60 via mass measurements of technetium isotopes

J. Ruotsalainen; A. Jaries; M. Stryjczyk; A. Kankainen; B. Andel; M. Araszkiewicz; O. Beliuskina; A. M. Bruce; S. Cannarozzo; S. Chinthakayala; S. Doshi; T. Eronen; A. Fijałkowska; L. M. Fraile; P. Garczyński; Z. Ge; D. Grigorova; G. Jaworski; A. Korgul; T. Krakowski; J. Kurpeta; S. Lalkovski; M. Llanos Expósito; I. D. Moore; L. M. Motilla; M. Mougeot; H. Penttilä; A. Raggio; W. Rattanasakuldilok; J. Saren; K. Solak

doi:10.1103/kksz-prtb

Probing the quantum phase transition near N ≈ 60 via mass measurements of technetium isotopes

J. Ruotsalainen
, A. Jaries
, M. Stryjczyk
, A. Kankainen
, B. Andel
, M. Araszkiewicz
, O. Beliuskina
, A. M. Bruce
, S. Cannarozzo
, S. Chinthakayala
, S. Doshi
, T. Eronen
, A. Fijałkowska
, L. M. Fraile
, P. Garczyński
, Z. Ge
, D. Grigorova
, G. Jaworski
, A. Korgul
, T. Krakowski

J. Kurpeta, S. Lalkovski, M. Llanos Expósito, I. D. Moore, L. M. Motilla, M. Mougeot, H. Penttilä, A. Raggio, W. Rattanasakuldilok, J. Saren, K. Solak

School of Arch, Tech and Eng

Research output: Contribution to journal › Article › peer-review

Abstract

The masses of neutron-rich 104–106Tc isotopes were measured using the JYFLTRAP double Penning trap and found to deviate from the Atomic Mass Evaluation 2020 by −79⁢(25) 40(12), and 94(41) keV, respectively. In the case of 105,106Tc the updated 𝑄𝛽 values are in agreement with a previous JYFLTRAP measurement, disagreeing with the values from the mass evaluation. The new mass values result in a more linear trend in two-neutron separation energies indicating that technetium (𝑍=43) isotopes around 𝑁≈60 are not a part of the island of shape coexistence around 100Zr60.

Original language	English
Article number	064302
Journal	Physical Review C
Volume	112
Issue number	6
DOIs	https://doi.org/10.1103/kksz-prtb
Publication status	Published - 1 Dec 2025

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2505.15625v2-6- Accepted versionAccepted author manuscript, 934 KBLicence: CC BY

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Ruotsalainen, J., Jaries, A., Stryjczyk, M., Kankainen, A., Andel, B., Araszkiewicz, M., Beliuskina, O., Bruce, A. M., Cannarozzo, S., Chinthakayala, S., Doshi, S., Eronen, T., Fijałkowska, A., Fraile, L. M., Garczyński, P., Ge, Z., Grigorova, D., Jaworski, G., Korgul, A., ... Solak, K. (2025). Probing the quantum phase transition near N ≈ 60 via mass measurements of technetium isotopes. Physical Review C, 112(6), Article 064302. https://doi.org/10.1103/kksz-prtb

@article{3fc59ba47fd143baae29723ae51538db,

title = "Probing the quantum phase transition near N ≈ 60 via mass measurements of technetium isotopes",

abstract = "The masses of neutron-rich 104–106Tc isotopes were measured using the JYFLTRAP double Penning trap and found to deviate from the Atomic Mass Evaluation 2020 by −79⁢(25) 40(12), and 94(41) keV, respectively. In the case of 105,106Tc the updated 𝑄𝛽 values are in agreement with a previous JYFLTRAP measurement, disagreeing with the values from the mass evaluation. The new mass values result in a more linear trend in two-neutron separation energies indicating that technetium (𝑍=43) isotopes around 𝑁≈60 are not a part of the island of shape coexistence around 100Zr60. ",

author = "J. Ruotsalainen and A. Jaries and M. Stryjczyk and A. Kankainen and B. Andel and M. Araszkiewicz and O. Beliuskina and Bruce, \{A. M.\} and S. Cannarozzo and S. Chinthakayala and S. Doshi and T. Eronen and A. Fija{\l}kowska and Fraile, \{L. M.\} and P. Garczy{\'n}ski and Z. Ge and D. Grigorova and G. Jaworski and A. Korgul and T. Krakowski and J. Kurpeta and S. Lalkovski and Exp{\'o}sito, \{M. Llanos\} and Moore, \{I. D.\} and Motilla, \{L. M.\} and M. Mougeot and H. Penttil{\"a} and A. Raggio and W. Rattanasakuldilok and J. Saren and K. Solak",

year = "2025",

month = dec,

day = "1",

doi = "10.1103/kksz-prtb",

language = "English",

volume = "112",

journal = "Physical Review C",

issn = "2469-9985",

publisher = "American Physical Society (APS)",

number = "6",

}

Ruotsalainen, J, Jaries, A, Stryjczyk, M, Kankainen, A, Andel, B, Araszkiewicz, M, Beliuskina, O, Bruce, AM, Cannarozzo, S, Chinthakayala, S, Doshi, S, Eronen, T, Fijałkowska, A, Fraile, LM, Garczyński, P, Ge, Z, Grigorova, D, Jaworski, G, Korgul, A, Krakowski, T, Kurpeta, J, Lalkovski, S, Expósito, ML, Moore, ID, Motilla, LM, Mougeot, M, Penttilä, H, Raggio, A, Rattanasakuldilok, W, Saren, J & Solak, K 2025, 'Probing the quantum phase transition near N ≈ 60 via mass measurements of technetium isotopes', Physical Review C, vol. 112, no. 6, 064302. https://doi.org/10.1103/kksz-prtb

TY - JOUR

T1 - Probing the quantum phase transition near N ≈ 60 via mass measurements of technetium isotopes

AU - Ruotsalainen, J.

AU - Jaries, A.

AU - Stryjczyk, M.

AU - Kankainen, A.

AU - Andel, B.

AU - Araszkiewicz, M.

AU - Beliuskina, O.

AU - Bruce, A. M.

AU - Cannarozzo, S.

AU - Chinthakayala, S.

AU - Doshi, S.

AU - Eronen, T.

AU - Fijałkowska, A.

AU - Fraile, L. M.

AU - Garczyński, P.

AU - Ge, Z.

AU - Grigorova, D.

AU - Jaworski, G.

AU - Korgul, A.

AU - Krakowski, T.

AU - Kurpeta, J.

AU - Lalkovski, S.

AU - Expósito, M. Llanos

AU - Moore, I. D.

AU - Motilla, L. M.

AU - Mougeot, M.

AU - Penttilä, H.

AU - Raggio, A.

AU - Rattanasakuldilok, W.

AU - Saren, J.

AU - Solak, K.

PY - 2025/12/1

Y1 - 2025/12/1

N2 - The masses of neutron-rich 104–106Tc isotopes were measured using the JYFLTRAP double Penning trap and found to deviate from the Atomic Mass Evaluation 2020 by −79⁢(25) 40(12), and 94(41) keV, respectively. In the case of 105,106Tc the updated 𝑄𝛽 values are in agreement with a previous JYFLTRAP measurement, disagreeing with the values from the mass evaluation. The new mass values result in a more linear trend in two-neutron separation energies indicating that technetium (𝑍=43) isotopes around 𝑁≈60 are not a part of the island of shape coexistence around 100Zr60.

AB - The masses of neutron-rich 104–106Tc isotopes were measured using the JYFLTRAP double Penning trap and found to deviate from the Atomic Mass Evaluation 2020 by −79⁢(25) 40(12), and 94(41) keV, respectively. In the case of 105,106Tc the updated 𝑄𝛽 values are in agreement with a previous JYFLTRAP measurement, disagreeing with the values from the mass evaluation. The new mass values result in a more linear trend in two-neutron separation energies indicating that technetium (𝑍=43) isotopes around 𝑁≈60 are not a part of the island of shape coexistence around 100Zr60.

U2 - 10.1103/kksz-prtb

DO - 10.1103/kksz-prtb

M3 - Article

SN - 2469-9985

VL - 112

JO - Physical Review C

JF - Physical Review C

IS - 6

M1 - 064302

ER -

Probing the quantum phase transition near N ≈ 60 via mass measurements of technetium isotopes

Abstract

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