Commissioning the FAst TIMing array (FATIMA) at FAIR Phase-0: half-lives of excited states in the N=50 isotones 96Pd and 94Ru

S. Jazrawi; A. Yaneva; M. Polettini; B. Das; P.H. Regan; M. Górska; B. Cederwall; J. Jolie; H.M. Albers; M.M.R. Chishti; A. Banerjee; N. Hubbard; A.K. Mistry; M. Rudigier; G. Benzoni; J. Gerl; A.M. Bruce; Zs Podolyák; B.S. Nara Singh; G.X. Zhang; S. Alhomaidhi; C. Appleton; T. Arici; A. Blazhev; T. Davinson; A. Esmaylzadeh; L.M. Fraile; G. Häfner; O. Hall; P.R. John; V. Karayonchev; I. Koujoharov; N. Kurz; M. Mikolajczuk; N. Pietralla; S. Pietri; J.M. Regis; E. Sahin; L. Sexton; H. Schaffner; C. Scheidenberger; A. Sharma; J. Vesic; H. Weick; V. Werner; R. Lozeva; M. Si

doi:10.1016/j.radphyschem.2022.110234

Commissioning the FAst TIMing array (FATIMA) at FAIR Phase-0: half-lives of excited states in the N=50 isotones ⁹⁶Pd and ⁹⁴Ru

S. Jazrawi^*, A. Yaneva, M. Polettini, B. Das, P.H. Regan, M. Górska, B. Cederwall, J. Jolie, H.M. Albers, M.M.R. Chishti, A. Banerjee, N. Hubbard, A.K. Mistry, M. Rudigier, G. Benzoni, J. Gerl, A.M. Bruce, Zs Podolyák, B.S. Nara Singh, G.X. ZhangS. Alhomaidhi, C. Appleton, T. Arici, A. Blazhev, T. Davinson, A. Esmaylzadeh, L.M. Fraile, G. Häfner, O. Hall, P.R. John, V. Karayonchev, I. Koujoharov, N. Kurz, M. Mikolajczuk, N. Pietralla, S. Pietri, J.M. Regis, E. Sahin, L. Sexton, H. Schaffner, C. Scheidenberger, A. Sharma, J. Vesic, H. Weick, V. Werner, R. Lozeva, M. Si

^*Corresponding author for this work

School of Computing, Engineering and Physical Sciences

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Abstract

This paper reports results of the first experiment of the DESPEC Phase-0 campaign at GSI, which focused on the study of neutron-deficient nuclei approaching ¹⁰⁰Sn. These data provide the first extended commissioning experiment for the DESPEC collaboration within NuSTAR. We present results on electromagnetic transition rates associated with the decays from excited states populated following the formation of I^π = 8⁺ proton ‘seniority-isomer’ states in the N = 50 isotones ⁹⁴Ru and ⁹⁶Pd. Direct half-life measurements via γ−γ coincidences using the FATIMA detector array consisting of 36 LaBr₃(Ce) scintillators have determined the reduced matrix elements associated with decays between low-lying states in these semi-magic nuclei. The extracted half-lives for yrast I^π = 6⁺ and 4⁺ states in ⁹⁶Pd and the 6⁺ state in ⁹⁴Ru are consistent with the published, highest-precision values for these nuclei.

Original language	English
Article number	110234
Number of pages	6
Journal	Radiation Physics and Chemistry
Volume	200
Early online date	26 May 2022
DOIs	https://doi.org/10.1016/j.radphyschem.2022.110234
Publication status	Published - 30 Nov 2022

Keywords

nuclear spectroscopy
LaBr3 detectors
nuclear structure physics
gamma-ray spectroscopy

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10.1016/j.radphyschem.2022.110234

2022 05 15 Jazrawi et al FATIMA acceptedAccepted author manuscript, 1.12 MBLicence: CC BY-NC-ND

Cite this

Jazrawi, S., Yaneva, A., Polettini, M., Das, B., Regan, P. H., Górska, M., Cederwall, B., Jolie, J., Albers, H. M., Chishti, M. M. R., Banerjee, A., Hubbard, N., Mistry, A. K., Rudigier, M., Benzoni, G., Gerl, J., Bruce, A. M., Podolyák, Z., Nara Singh, B. S., ... Si, M. (2022). Commissioning the FAst TIMing array (FATIMA) at FAIR Phase-0: half-lives of excited states in the N=50 isotones ⁹⁶Pd and ⁹⁴Ru. Radiation Physics and Chemistry, 200, Article 110234. https://doi.org/10.1016/j.radphyschem.2022.110234

@article{3b42c3d2e00849bcb4fae771a56117d7,

title = "Commissioning the FAst TIMing array (FATIMA) at FAIR Phase-0: half-lives of excited states in the N=50 isotones 96Pd and 94Ru",

abstract = "This paper reports results of the first experiment of the DESPEC Phase-0 campaign at GSI, which focused on the study of neutron-deficient nuclei approaching 100Sn. These data provide the first extended commissioning experiment for the DESPEC collaboration within NuSTAR. We present results on electromagnetic transition rates associated with the decays from excited states populated following the formation of Iπ = 8+ proton {\textquoteleft}seniority-isomer{\textquoteright} states in the N = 50 isotones 94Ru and 96Pd. Direct half-life measurements via γ−γ coincidences using the FATIMA detector array consisting of 36 LaBr3(Ce) scintillators have determined the reduced matrix elements associated with decays between low-lying states in these semi-magic nuclei. The extracted half-lives for yrast Iπ = 6+ and 4+ states in 96Pd and the 6+ state in 94Ru are consistent with the published, highest-precision values for these nuclei.",

keywords = "nuclear spectroscopy, LaBr3 detectors, nuclear structure physics, gamma-ray spectroscopy",

author = "S. Jazrawi and A. Yaneva and M. Polettini and B. Das and P.H. Regan and M. G{\'o}rska and B. Cederwall and J. Jolie and H.M. Albers and M.M.R. Chishti and A. Banerjee and N. Hubbard and A.K. Mistry and M. Rudigier and G. Benzoni and J. Gerl and A.M. Bruce and Zs Podoly{\'a}k and {Nara Singh}, B.S. and G.X. Zhang and S. Alhomaidhi and C. Appleton and T. Arici and A. Blazhev and T. Davinson and A. Esmaylzadeh and L.M. Fraile and G. H{\"a}fner and O. Hall and P.R. John and V. Karayonchev and I. Koujoharov and N. Kurz and M. Mikolajczuk and N. Pietralla and S. Pietri and J.M. Regis and E. Sahin and L. Sexton and H. Schaffner and C. Scheidenberger and A. Sharma and J. Vesic and H. Weick and V. Werner and R. Lozeva and M. Si",

year = "2022",

month = nov,

day = "30",

doi = "10.1016/j.radphyschem.2022.110234",

language = "English",

volume = "200",

journal = "Radiation Physics and Chemistry",

issn = "0969-806X",

publisher = "Elsevier Limited",

}

Jazrawi, S, Yaneva, A, Polettini, M, Das, B, Regan, PH, Górska, M, Cederwall, B, Jolie, J, Albers, HM, Chishti, MMR, Banerjee, A, Hubbard, N, Mistry, AK, Rudigier, M, Benzoni, G, Gerl, J, Bruce, AM, Podolyák, Z, Nara Singh, BS, Zhang, GX, Alhomaidhi, S, Appleton, C, Arici, T, Blazhev, A, Davinson, T, Esmaylzadeh, A, Fraile, LM, Häfner, G, Hall, O, John, PR, Karayonchev, V, Koujoharov, I, Kurz, N, Mikolajczuk, M, Pietralla, N, Pietri, S, Regis, JM, Sahin, E, Sexton, L, Schaffner, H, Scheidenberger, C, Sharma, A, Vesic, J, Weick, H, Werner, V, Lozeva, R & Si, M 2022, 'Commissioning the FAst TIMing array (FATIMA) at FAIR Phase-0: half-lives of excited states in the N=50 isotones ⁹⁶Pd and ⁹⁴Ru', Radiation Physics and Chemistry, vol. 200, 110234. https://doi.org/10.1016/j.radphyschem.2022.110234

TY - JOUR

T1 - Commissioning the FAst TIMing array (FATIMA) at FAIR Phase-0

T2 - half-lives of excited states in the N=50 isotones 96Pd and 94Ru

AU - Jazrawi, S.

AU - Yaneva, A.

AU - Polettini, M.

AU - Das, B.

AU - Regan, P.H.

AU - Górska, M.

AU - Cederwall, B.

AU - Jolie, J.

AU - Albers, H.M.

AU - Chishti, M.M.R.

AU - Banerjee, A.

AU - Hubbard, N.

AU - Mistry, A.K.

AU - Rudigier, M.

AU - Benzoni, G.

AU - Gerl, J.

AU - Bruce, A.M.

AU - Podolyák, Zs

AU - Nara Singh, B.S.

AU - Zhang, G.X.

AU - Alhomaidhi, S.

AU - Appleton, C.

AU - Arici, T.

AU - Blazhev, A.

AU - Davinson, T.

AU - Esmaylzadeh, A.

AU - Fraile, L.M.

AU - Häfner, G.

AU - Hall, O.

AU - John, P.R.

AU - Karayonchev, V.

AU - Koujoharov, I.

AU - Kurz, N.

AU - Mikolajczuk, M.

AU - Pietralla, N.

AU - Pietri, S.

AU - Regis, J.M.

AU - Sahin, E.

AU - Sexton, L.

AU - Schaffner, H.

AU - Scheidenberger, C.

AU - Sharma, A.

AU - Vesic, J.

AU - Weick, H.

AU - Werner, V.

AU - Lozeva, R.

AU - Si, M.

PY - 2022/11/30

Y1 - 2022/11/30

N2 - This paper reports results of the first experiment of the DESPEC Phase-0 campaign at GSI, which focused on the study of neutron-deficient nuclei approaching 100Sn. These data provide the first extended commissioning experiment for the DESPEC collaboration within NuSTAR. We present results on electromagnetic transition rates associated with the decays from excited states populated following the formation of Iπ = 8+ proton ‘seniority-isomer’ states in the N = 50 isotones 94Ru and 96Pd. Direct half-life measurements via γ−γ coincidences using the FATIMA detector array consisting of 36 LaBr3(Ce) scintillators have determined the reduced matrix elements associated with decays between low-lying states in these semi-magic nuclei. The extracted half-lives for yrast Iπ = 6+ and 4+ states in 96Pd and the 6+ state in 94Ru are consistent with the published, highest-precision values for these nuclei.

AB - This paper reports results of the first experiment of the DESPEC Phase-0 campaign at GSI, which focused on the study of neutron-deficient nuclei approaching 100Sn. These data provide the first extended commissioning experiment for the DESPEC collaboration within NuSTAR. We present results on electromagnetic transition rates associated with the decays from excited states populated following the formation of Iπ = 8+ proton ‘seniority-isomer’ states in the N = 50 isotones 94Ru and 96Pd. Direct half-life measurements via γ−γ coincidences using the FATIMA detector array consisting of 36 LaBr3(Ce) scintillators have determined the reduced matrix elements associated with decays between low-lying states in these semi-magic nuclei. The extracted half-lives for yrast Iπ = 6+ and 4+ states in 96Pd and the 6+ state in 94Ru are consistent with the published, highest-precision values for these nuclei.

KW - nuclear spectroscopy

KW - LaBr3 detectors

KW - nuclear structure physics

KW - gamma-ray spectroscopy

U2 - 10.1016/j.radphyschem.2022.110234

DO - 10.1016/j.radphyschem.2022.110234

M3 - Article

SN - 0969-806X

VL - 200

JO - Radiation Physics and Chemistry

JF - Radiation Physics and Chemistry

M1 - 110234

ER -