β-decays in explosive nucleosynthesis scenarios  Page description

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Details of project

  
Identifier
128072
Type NN
Principal investigator Kiss, Gábor
Title in Hungarian Béta-bomlások robbanásos elemkeletkezési folyamatokban
Title in English β-decays in explosive nucleosynthesis scenarios
Keywords in Hungarian béta-bomlás, kémiai elemek keletkezése, asztrofizikai r-folyamat, radioaktív nyaláb, neutron csillag, szupernóva robbanás
Keywords in English beta-decay, nucleosynthesis, r-process, radioactive ion beams, neutron star, core collapse supernovae
Discipline
Nuclear Physics (Council of Physical Sciences)80 %
Astrophysics (Council of Physical Sciences)20 %
Panel Physics 1
Department or equivalent Nuclear astrophysics research group (HUN-REN Institute for Nuclear Research)
Participants Algora, Pineda Alejandro
Csedreki, László
Elekes, Zoltán
Fülöp, Zsolt
Gyürky, György
Halász, Zoltán
Horváth, Ákos
Körtefái, Dóra
Kovács, Sándor
Stuhl, László
Szegedi, Tibor Norbert
Szücs, Tamás
Starting date 2018-09-01
Closing date 2024-03-31
Funding (in million HUF) 42.268
FTE (full time equivalent) 29.22
state running project





 

Final report

  
Results in Hungarian
Az NN128072 projekt célja az volt, hogy kísérleteket végezzünk a Japánban található RIKEN Nishina Centerben. A nukleoszintézis számítások szilárd magfizikai alapokra helyezésének céljával mintegy 100 izotóp béta-bomlását mértük meg, és nagyjából 300 paramétert (felezési időket, késleltetett egy és két neutron emissziós valószínűségeket) határoztunk meg többnyire először. Az extrém proton-gazdag kripton és higany izotópok béta-bomlási vizsgálatával meghatároztuk a magok alakját és vizsgáltuk a leánymagok szerkezetét. Ezen túlmenően az inverziós szigetek közelében található izotópok gerjesztett állapotait is tanulmányoztuk.
Results in English
The aim of the NN128072 project was to carry out experiments at RIKEN Nishina Center (Wako-shi, Japan). To provide solid ground for the r-process nucleosynthesis calculations, the beta-decay of about 100 isotopes were measured and about 300 parameters (half-lives, delayed one and two neutron emission probabilities) were derived mostly for the first time. The shape of very exotic proton-rich Kr and Hg isotopes were derived by the study of their beta decay and the structure of the daughter isotopes were also examined. Furthermore, the excited states of isotopes lying in the vicinity of the Islands of Inversion were studied.
Full text https://www.otka-palyazat.hu/download.php?type=zarobeszamolo&projektid=128072
Decision
Yes





 

List of publications

  
R. Yokoyama et al.,: β-delayed neutron emissions from N > 50 gallium isotopes, PHYSICAL REVIEW C 108, 064307 (2023), 2023
Piet Van Isacker, Alejandro Algora, András Vitéz-Sveiczer, Gábor Gyula Kiss, Sonja Elena Agata Orrigo, Berta Rubio and Pablo Aguilera: Gamow–Teller Beta Decay and Pseudo-SU(4) Symmetry, Symmetry 15, 2001 (2023), 2023
A. Vitéz-Sveiczer et al.,: HALF-LIFE MEASUREMENT USING IMPLANT-(β − γ) TIME CORRELATIONS IN THE REGION OF NEUTRON-RICH LANTHANIDES, Acta Physica Polonica B Proceedings Supplement 16, 4-A8 (2023), 2023
V. H. Phong et al.,: β-Delayed One and Two Neutron Emission Probabilities Southeast of 132Sn and the Odd-Even Systematics in r-Process Nuclide Abundances, PHYSICAL REVIEW LETTERS 129, 172701 (2022), 2022
A. I. Stefanescu et al.,: Silicon tracker array for RIB experiments at SAMURAI, Eur. Phys. J. A (2022) 58:223, 2022
L. Stuhl et al.,: Study of spin-isospin response of 11Li neutron drip line nucleus with PANDORA, Journal of Physics: Conference Series, 2020
A. Algora et al.,: Total absorption gamma-ray spectroscopy study of the β-decay of186Hg, Physics Letters B819 (2021) 136438, 2021
S. Hayakawa et al.,: Constraining the Primordial Lithium Abundance: New Cross Section Measurement of the 7Be + n Reactions Updates the Total 7Be Destruction Rate, The Astrophysical Journal Letters, 915 (2021) L13, 2021
O. Hall et al.,: β-delayed neutron emission of r-process nuclei at the N=82shell closure, Physics Letters B816 (2021) 136266, 2021
A. Revel et al.,: Extending the Southern Shore of the Island of Inversion to 28F, Physical Review Letters 124 (2020) 152502, 2020
M. L. Cortés et al.,: N = 32 shell closure below calcium: Low-lying structure of 50Ar, Physical Review C 102 (2020) 064320, 2020
S. E. A. Orrigo et al.,: β decay of the very neutron-deficient 60Ge and 62Ge nuclei, Physical Review C 103 (2021) 014324, 2021
K. Wimmer et al.,: Isomeric states in neutron-rich nuclei near N = 40, Physical Review C 104 (2021) 014304, 2021
L. Csedreki et al.,: Characterization of the LUNA neutron detector array for the measurement of the 13C(, Nuclear Inst. and Methods in Physics Research, A 994 (2021) 165081, 2021
A.Vitéz-Sveiczer et al.,: The β-decay of 70Kr into 70Br: Restoration of the pseudo-SU(4) symmetry, Physics Letters B 830 (2022) 137123, 2022
G. G. Kiss et al.,: Measuring the β-decay properties of neutron-rich exotic Pm-Sm-Eu-Gd isotopes to constrain the nucleosynthesis yields in the rare-earth region, The Astrophysical Journal, 2022
G. G. Kiss et al.,: Measuring the β-decay Properties of Neutron-rich Exotic Pm, Sm, Eu, and Gd Isotopes to Constrain the Nucleosynthesis Yields in the Rare-earth Region, The Astrophysical Journal, 936 (2022) 107, 2022
K. Wimmer et al.,: Shape coexistence revealed in the N = Z isotope 72Kr through inelastic scattering, European Physical Journal, 2020
R. Yokoyama et al.,: Strong one-neutron emission from two-neutron unbound states in β decays of the r-process nuclei 86,87Ga, Physical Review C, 2019
Y. L. Sun et al.,: Restoration of the natural E(1/2+1) -E(3/2+1) energy splitting in odd-K isotopes towards N= 40, Physics Letters B, 2020
S. Chen et al.,: Quasifree Neutron Knockout from 54Ca Corroborates Arising N = 34 Neutron Magic Number, Physical Review Letters, 2019
T. N. Szegedi: High precision half-life measurement of 95Ru, 95Tc and 95mTc with γ -spectroscopy, European Physical Journal, 2020
Gyürky, Gy ; Halász, Z. ; Kiss, G.G. ; Szücs, T. ; Fülöp, Zs: Half-life measurement of 65Ga with γ-spectroscopy, APPLIED RADIATION AND ISOTOPES 148 87-90. (2019), 2019
Szegedi, T.N. ; Kiss, G.G. ; Öksüz, I. ; Szücs, T. ; Gyürky, Gy. ; Elekes, Z. ; Somorjai, E. ; Fülöp, Zs.: High precision half-life measurement of 125Cs and 125Xe with γ-spectroscopy, NUCLEAR PHYSICS A 986 213-222. (2019), 2019
Stuhl, L. ; Sasano, M. ; Gao, J. ; Hirai, Y. ; Yako, K. ; Wakasa, T. ; Ahn, D.S. ; Baba, H. ; Chilug, A.I. ; Franchoo, S. et al.,: Study of spin-isospin responses of radioactive nuclei with the background-reduced neutron spectrometer, PANDORA, NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 2019
Phong, V.H. ; Lorusso, G. ; Davinson, T. ; Estrade, A. ; Hall, O. ; Liu, J. ; Matsui, K. ; Montes, F. ; Nishimura, S. ; Boso, A. et al.: Observation of a μs isomer in In85: Proton-neutron coupling "southeast" of Sn82, PHYSICAL REVIEW C 100 011302 (2019), 2019
Wimmer, K. ; Recchia, F. ; Lenzi, S.M. ; Riccetto, S. ; Davinson, T. ; Estrade, A. ; Griffin, C.J. ; Nishimura, S. ; Nowacki, F. ; Phong, V. et al.: First spectroscopy of 61Ti and the transition to the Island of Inversion at N = 40, PHYSICS LETTERS B 792 16-20. (2019), 2019
A. Vitéz-Sveiczer et al.,: STUDYING THE EXOTIC DECAY 70Kr -> 70Br, Acta Physica Polonica, 2020
J. Giovinazzo et al.,: TWO-PROTON RADIOACTIVITY: THE INTERESTING CASE OF 67Kr AND FURTHER STUDIES, Acta Physica Polonica, 2020




 

Events of the project

  
2021-09-27 16:22:47
Résztvevők változása
2020-02-10 16:23:14
Kutatóhely váltás
A kutatás helye megváltozott. Korábbi kutatóhely: Örökségtudományi Laboratórium (Atommagkutató Intézet), Új kutatóhely: Tandetron Laboratórium (Atommagkutató Intézet).



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