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399 results on '"Miernik K"'

1. Decay study of $^{11}$Be with an Optical TPC detector

Author

Sokołowska, N., Guadilla, V., Mazzocchi, C., Ahmed, R., Borge, M., Cardella, G., Ciemny, A. A., Cosentino, L. G., De Filippo, E., Fedosseev, V., Fijałkowska, A., Fraile, L. M., Geraci, E., Giska, A., Gnoffo, B., Granados, C., Janas, Z., Janiak, Ł., Johnston, K., Kamiński, G., Korgul, A., Kubiela, A., Maiolino, C., Marsh, B., Martorana, N. S., Miernik, K., Molkanov, P., Ovejas, J. D., Pagano, E. V., Pirrone, S., Pomorski, M., Quynh, A. M., Riisager, K., Russo, A., Russotto, P., Świercz, A., Viñals, S., Wilkins, S., and Pfützner, M.

Subjects
Nuclear Experiment
Abstract

The $\beta$ decay of one-neutron halo nucleus $^{11}$Be was investigated using the Warsaw Optical Time Projection Chamber (OTPC) detector to measure $\beta$-delayed charged particles. The results of two experiments are reported. In the first one, carried out in LNS Catania, the absolute branching ratio for $\beta$-delayed $\alpha$ emission was measured by counting incoming $^{11}$Be ions stopped in the detector and the observed decays with the emission of $\alpha$ particle. The result of 3.27(46)\% is in good agreement with the literature value. In the second experiment, performed at the HIE-ISOLDE facility at CERN, bunches containing several hundreds of $^{11}$Be ions were implanted into the OTPC detector followed by the detection of decays with the emission of charged particles. The energy spectrum of $\beta$-delayed $\alpha$ particles was determined in the full energy range. It was analysed in the R-matrix framework and was found to be consistent with the literature. The best description of the spectrum was obtained assuming that the two $3/2^+$ and one $1/2^+$ states in $^{11}$B are involved in the transition. The search for $\beta$-delayed emission of protons was undertaken. Only the upper limit for the branching ratio for this process of $(2.2 \pm 0.6_{\rm stat} \pm 0.6_{\rm sys}) \times 10^{-6}$ could be determined. This value is in conflict with the result published in [Ayyad et al. Phys. Rev. Lett. 123, 082501 (2019)] but does agree with the limit reported in [Riisager et al., Eur. Phys. J. A (2020) 56:100], Comment: 16 pages, 18 figures, submitted to Phys. Rev. C

Published
2024

2. Study of decay properties of Ba to Nd nuclei (A~160) relevant to the formation of the r-process rare-earth peak

Author

Pallàs M., Tarifeño-Saldivia A., Kiss G. G., Tain J. L., Tolosa-Delgado A., Vitéz-Sveiczer A., Calviño F., Agramunt J., Aguilera P., Algora A., Allmond J. M., Baba H., Brewer N. T., Caballero-Folch R., Coleman-Smith P. J., Cortes G., Davinson T., Dillmann I., Domingo-Pardo C., Estrade A., Fukuda N., Go S., Griffin C. J., Grzywacz R. K., Hall O., Harkness-Brennan L. J., Isobe T., Kahl D., King T. T., Korgul A., Kovács S., Kubono S., Labiche M., Liu J., Madurga M., Miernik K., Molina F., Mont-Geli N., Morales A. I., Nácher E., Navarro A., Nepal N., Nishimura S., Piersa-Silkowska M., Phong V., Rasco B. C., Romero-Barrientos J., Rubio B., Rykaczewski K. P., Saito Y., Sakurai H., Shimizu Y., Singh M., Sumikama T., Suzuki H., Szegedi T. N., Takeda H., Wang K., Wolińska-Cichocka M., Woods P. J., and Yokoyama R.

Subjects
Physics, QC1-999
Abstract

Half-lifes (T1/2) of exotic neutron-rich isotopes of Ba, La, Ce, Pr, and Nd were measured at the RIKEN Nishina Center. The experimental setup consisted of the BigRIPS in-flight separator for ion selection identification, the Advance Implantation Detector Array (AIDA) for ions and β detection, and the BRIKEN detector for neutron counting. Using this setup, 4 new T1/2 have been measured for the first time, and 38 T1/2 have been remeasured with improved precision in several cases. These new experimental data should help to constrain theoretical models for calculations of T1/2. The status of the experimental analysis and preliminary results are provided in this contribution.

Published
2023
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3. Study of decay properties for Ba to Nd nuclei relevant for the formation of the r-process rare-earth peak (A∼160)

Author

Pallàs M., Tarifeño-Saldivia A., Kiss G. G., Tain J. L., Tolosa-Delgado A., Vitéz-Sveiczer A., Calviño F., Agramunt J., Aguilera P., Algora A., Allmond J. M., Baba H., Brewer N. T., Caballero-Folch R., Coleman-Smith P. J., Cortes G., Davinson T., Dillmann I., Domingo-Pardo C., Estrade A., Fukuda N., Go S., Griffin C. J., Grzywacz R. K., Hall O., Harkness-Brennan L. J., Isobe T., Kahl D., King T. T., Korgul A., Kovács S., Kubono S., Labiche M., Liu J., Madurga M., Miernik K., Molina F., Mont-Geli N., Morales A. I., Nácher E., Navarro A., Nepal N., Nishimura S., Piersa-Silkowska M., Phong V., Rasco B. C., Romero-Barrientos J., Rubio B., Rykaczewski K. P., Saito Y., Sakurai H., Shimizu Y., Singh M., Sumikama T., Suzuki H., Szegedi T. N., Takeda H., Wang K., Wolińska-Cichocka M., Woods P. J., and Yokoyama R.

Subjects
Physics, QC1-999
Abstract

At the RIKEN Nishina Center, exotic neutron-rich isotopes of Ba, La, Ce, Pr, and Nd were measured. This work reports their half-lives (T1/2) and β-delayed neutron-emission probabilities (Pxn). The setup consisted of the BigRIPS in-flight separator for particle identification, the Advanced Implantation Detector Array (AIDA) for ions and β detection, and the BRIKEN neutron counter for neutron detection. Using this arrangement, 4 new T1/2 and 14 new P1n were measured. Furthermore, 38 T1/2 and 2 P1n values were remeasured, decreasing the uncertainties for some of them. In addition to improving predictions of nucleosynthesis models that describe the production of the rare-earth peak at A ∼ 160 via the r-process, these additional experimental data should help to constrain theoretical models for calculations of T1/2 and Pxn in this region.

Published
2023
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4. Fission of 215Fr studied with gamma spectroscopic methods

Author

Miernik, K., Korgul, A., Poklepa, W., Wilson, J. N., Charles, G., Czajkowski, S., Czyż, P., Fijałkowska, A., Fraile, L. M., Garczyński, P., Hauschild, K., Hiver, C., Kurtukian-Nieto, T., Lebois, M., Llanos, M., Lopez-Martens, A., Treasa, K. M. Deby, Ljungvall, J., Matea, I., Mielczarek, J., Murias, J. R., Pasqualato, G., Skruch, A., Solak, K., Stoyachev, K., and Tsekhanovich, I.

Subjects
Nuclear Experiment
Abstract

Background: Asymmetric fission is known to occur in two regions, the actinides and sub-lead, and is dependent on the fissioning system excitation energy. Experimental evidence in the sub-lead region show that this mode is surprisingly persistent with increasing energy and its origin is not fully understood. Purpose: To experimentally study the fusion-fission reaction of $^{215}$Fr at moderate excitation energy and determine previously unknown independent fission yields and other properties. Method: The compound nucleus was formed in the reaction $^{18}$O + $^{197}$Au. The prompt gamma-rays emitted during the reaction were measured with the high efficiency and high granularity $\nu$-ball2 spectrometer. Independent fission yields of even-even nuclei were determined by detecting triple-gamma cascades in the fission fragments. Results: The observed yields, although dominated by a symmetric peak, show maxima for heavy fragment of $Z \approx 54-56$, which is consistent with the known results in the actinide region but unexpected for the nuclide of interest, and at the studied excitation energy. Conclusions: The mode of asymmetric fission is present even at relatively high excitation energies in the system studied. This observation matches experimental findings in the sub-lead region, contrary to the actinides, and so far there is no well-developed explanation of this phenomenon.

Published
2023
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5. Spark Plasma Sintering of Low Alloy Steel Modified with Silicon Carbide

Author

Hebda M., Dębecka H., Miernik K., and Kazior J.

Subjects
SPS, Silicon carbide, Low-alloy steel, Mechanical alloying, Corrosion resistance., Mining engineering. Metallurgy, TN1-997, Materials of engineering and construction. Mechanics of materials, TA401-492
Abstract

The influence of adding different amounts of silicon carbide on the properties (density, transverse rupture strength, microhardness and corrosion resistance) and microstructure of low alloy steel was investigated. Samples were prepared by mechanical alloying (MA) process and sintered by spark plasma sintering (SPS) technique. After the SPS process, half of each of obtained samples was heat-treated in a vacuum furnace. The results show that the high-density materials have been achieved. Homogeneous and fine microstructure was obtained. The heat treatment that followed the SPS process resulted in an increase in the mechanical and plastic properties of samples with the addition 1wt. % of silicon carbide. The investigated compositions containing 1 wt.% of SiC had better corrosion resistance than samples with 3 wt.% of silicon carbide addition. Moreover, corrosion resistance of the samples with 1 wt.% of SiC can further be improved by applying heat treatment.

Published
2016
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6. Commissioning of the BRIKEN beta-delayed neutron detector for the study of exotic neutron-rich nuclei

Author

Tolosa-Delgado A., Agramunt J., Ahn D. S., Algora A., Baba H., Bae S., Brewer N. T., Caballero Folch R., Calvino F., Coleman-Smith P. J., Cortes G., Davinson T., Dillmann I., Domingo-Pardo C., Estrade A., Fukuda N., Go S., Griffin C. J., Grzywacz R., Ha J., Hall O., Harkness-Brennan L., Isobe T., Kahl D., Kiss G. G., Kogimtzis M., Kubono S., Labiche M., Lazarus I., Lee J., Liu J., Lorusso G., Matsui K., Miernik K., Montes F., Moon B., Morales A.I., Nepal N., Nishimura S., Page R. D., Phong V. H., Podolyak Z., Pucknell V. F. E., Rasco B. C., Regan P., Riego A., Rubio B., Rykaczewski K.P., Saito Y., Sakurai H., Shimizu Y., Simpson J., Söderström P.-A., Stracener D. W., Sumikama T., Suzuki H., Tain J. L., Takechi M., Takeda H., Tarifeño-Saldivia A., Thomas S. L., and Woods P.

Subjects
Physics, QC1-999
Abstract

The commissioning of a new setup for β-delayed neutron measurements was carried out successfully in November-2016, at the RIKEN Nishina Center in Japan. The β-decay half-lives and Pn branching ratios of several isotopes in the 78Ni region were measured. Details of the experimental setup and the first results are given.

Published
2017
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7. Study of the properties of the superheavy nuclei Z = 117 produced in the 249Bk + 48Ca reaction

Author

Oganessian Yu. Ts., Abdullin F. Sh., Alexander C., Binder J., Boll R. A., Dmitriev S. N., Ezold J., Felker K., Gostic J. M., Grzywacz R. K., Hamilton J. H., Henderson R. A., Itkis M. G., Miernik K., Miller D., Moody K. J., Polyakov A. N., Ramayya A. V., Roberto J. B., Ryabinin M. A., Rykaczewski K. P., Sagaidak R. N., Shaughnessy D. A., Shirokovsky I. V., Shumeiko M. V., Stoyer M. A., Stoyer N. J., Subbotin V. G., Sukhov A. M., Tsyganov Yu. S., Utyonkov V. K., Voinov A. A., and Vostokin G. K.

Subjects
Physics, QC1-999
Abstract

The reaction of 249Bk with 48Ca have been reinvestigated to provide new evidence for the discovery of element 117 on a larger number of events. The experiments were performed at five projectile energies and with a total beam dose of 48Ca of about 4.6×1019. Two isotopes 293,294117 were synthesized in the 249Bk+48Ca reaction, providing excitation functions and α-decay spectra of the produced isotopes that establishes these nuclei to be the products of the 4n- and 3n-evaporation channels, respectively. Decay properties of 293,294117 and of all the daughter products agree with the data of the experiment in which these nuclei were synthesized for the first time in 2010. The new 289115 events, populated by α decay of 293117, demonstrate the same decay properties as those observed for 289115 produced in the 243Am(48Ca,2n) reaction thus providing crossbombardment evidence. In addition, a single decay of 294118 was observed from the reaction with 249Cf – a result of the in-growth of 249Cf in the 249Bk target.

Published
2014
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8. Detailed spectroscopy of doubly magic $^{132}$Sn

Author

Benito, J., Fraile, L. M., Korgul, A., Piersa, M., Adamska, E., Andreyev, A. N., Álvarez-Rodríguez, R., Barzakh, A. E., Benzoni, G., Berry, T., Borge, M. J. G., Carmona, M., Chrysalidis, K., Costache, C., Cubiss, J. G., Goodacre, T. Day, De Witte, H., Fedorov, D. V., Fedosseev, V. N., Fernández-Martínez, G., Fijałkowska, A., Fila, M., Fynbo, H., Galaviz, D., Galve, P., García-Díez, M., Greenlees, P. T., Grzywacz, R., Harkness-Brennan, L. J., Henrich, C., Huyse, M., Ibáñez, P., Illana, A., Janas, Z., Jolie, J., Judson, D. S., Karayonchev, V., Kicinska-Habior, M., Konki, J., Kurcewicz, J., Lazarus, I., Lica, R., López-Montes, A., Lund, M., Mach, H., Madurga, M., Marroquín, I., Marsh, B., Martínez, M. C., Mazzocchi, C., Marginean, N., Marginean, R., Miernik, K., Mihai, C., Mihai, R. E., Nácher, E., Negret, A., Olaizola, B., Page, R. D., Paulauskas, S. V., Pascu, S., Perea, A., Pucknell, V., Rahkila, P., Raison, C., Rapisarda, E., Régis, J. -M., Rezynkina, K., Rotaru, F., Rothe, S., Sánchez-Parcerisa, D., Sánchez-Tembleque, V., Schomacker, K., Simpson, G. S., Sotty, Ch., Stan, L., Stanoiu, M., Stryjczyk, M., Tengblad, O., Turturica, A., Udías, J. M., Van Duppen, P., Vedia, V., Villa-Abaunza, A., Viñals, S., Walters, W. B., Wadsworth, R., and Warr, N.

Subjects
Nuclear Experiment
Abstract

The structure of the doubly magic $^{132}_{50}$Sn$_{82}$ has been investigated at the ISOLDE facility at CERN, populated both by the $\beta^-$decay of $^{132}$In and $\beta^-$-delayed neutron emission of $^{133}$In. The level scheme of $^{132}$Sn is greatly expanded with the addition of 68 $\gamma$-transitions and 17 levels observed for the first time in the $\beta$ decay. The information on the excited structure is completed by new $\gamma$-transitions and states populated in the $\beta$-n decay of $^{133}$In. Improved delayed neutron emission probabilities are obtained both for $^{132}$In and $^{133}$In. Level lifetimes are measured via the Advanced Time-Delayed $\beta\gamma\gamma$(t) fast-timing method. An interpretation of the level structure is given based on the experimental findings and the particle-hole configurations arising from core excitations both from the \textit{N} = 82 and \textit{Z} = 50 shells, leading to positive and negative parity particle-hole multiplets. The experimental information provides new data to challenge the theoretical description of $^{132}$Sn., Comment: 19 pages, 11 figures. Accepted for publication in Phys. Rev. C

Published
2020
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9. Study of N=50Z=3282 gap evolution around N=50Z=3282: new structure information for N=50Z=3282Ge

Author

Thisse, D., Lebois, M., Verney, D., Wilson, J. N., Jovančević, N., Rudigier, M., Canavan, R., Etasse, D., Adsley, P., Algora, A., Babo, M., Belvedere, K., Benito, J., Benzoni, G., Blazhev, A., Boso, A., Bottoni, S., Bunce, M., Chakma, R., Cieplicka-Oryńczak, N., Courtin, S., Cortés, M. L., Davies, P., Delafosse, C., Fallot, M., Fornal, B., Fraile, L., Gjestvang, D., Gottardo, A., Guadilla, V., Gerst, R. -B., Häfner, G., Hauschild, K., Heine, M., Henrich, C., Homm, I., Hommet, J., Ibrahim, F., Iskra, Ł. W., Ivanov, P., Jazrawi, S., Korgul, A., Koseoglou, P., Kröll, T., Kurtukian-Nieto, T., Meur, L. Le, Leoni, S., Ljungvall, J., Lopez-Martens, A., Lozeva, R., Matea, I., Miernik, K., Nemer, J., Oberstedt, S., Paulsen, W., Piersa-Silkowska, M., Poklepa, W., Popovitch, Y., Porzio, C., Qi, L., Ralet, D., Regan, P. H., Reygadas-Tello, D., Rezynkina, K., Sánchez-Tembleque, V., Siem, S., Schmitt, C., Söderström, P. -A., Solak, K., Sürder, C., Tocabens, G., Vedia, V., Warr, N., Wasilewska, B., Wiederhold, J., Yavahchova, M., Zeiser, F., and Ziliani, S.

Published
2023
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10. Fusion reaction Ca 48 + Bk 249 leading to formation of the element Ts (Z=117)

Author

Khuyagbaatar, J, Yakushev, A, Düllmann, CE, Ackermann, D, Andersson, LL, Asai, M, Block, M, Boll, RA, Brand, H, Cox, DM, Dasgupta, M, Derkx, X, Di Nitto, A, Eberhardt, K, Even, J, Evers, M, Fahlander, C, Forsberg, U, Gates, JM, Gharibyan, N, Golubev, P, Gregorich, KE, Hamilton, JH, Hartmann, W, Herzberg, RD, Heßberger, FP, Hinde, DJ, Hoffmann, J, Hollinger, R, Hübner, A, Jäger, E, Kindler, B, Kratz, JV, Krier, J, Kurz, N, Laatiaoui, M, Lahiri, S, Lang, R, Lommel, B, Maiti, M, Miernik, K, Minami, S, Mistry, A, Mokry, C, Nitsche, H, Omtvedt, JP, Pang, GK, Papadakis, P, Renisch, D, Roberto, J, Rudolph, D, Runke, J, Rykaczewski, KP, Sarmiento, LG, Schädel, M, Schausten, B, Semchenkov, A, Shaughnessy, DA, Steinegger, P, Steiner, J, Tereshatov, EE, Thörle-Pospiech, P, Tinschert, K, Torres De Heidenreich, T, Trautmann, N, Türler, A, Uusitalo, J, Ward, DE, Wegrzecki, M, Wiehl, N, Van Cleve, SM, and Yakusheva, V

Abstract

The heaviest currently known nuclei, which have up to 118 protons, have been produced in Ca48 induced reactions with actinide targets. Among them, the element tennessine (Ts), which has 117 protons, has been synthesized by fusing Ca48 with the radioactive target Bk249, which has a half-life of 327 d. The experiment was performed at the gas-filled recoil separator TASCA. Two long and two short α decay chains were observed. The long chains were attributed to the decay of Ts294. The possible origin of the short-decay chains is discussed in comparison with the known experimental data. They are found to fit with the decay chain patterns attributed to Ts293. The present experimental results confirm the previous findings at the Dubna Gas-Filled Recoil Separator on the decay chains originating from the nuclei assigned to Ts.

Published
2019

11. Fusion reaction Ca48+Bk249 leading to formation of the element Ts (Z=117)

Author

Khuyagbaatar, J, Yakushev, A, Düllmann, Ch E, Ackermann, D, Andersson, L-L, Asai, M, Block, M, Boll, RA, Brand, H, Cox, DM, Dasgupta, M, Derkx, X, Di Nitto, A, Eberhardt, K, Even, J, Evers, M, Fahlander, C, Forsberg, U, Gates, JM, Gharibyan, N, Golubev, P, Gregorich, KE, Hamilton, JH, Hartmann, W, Herzberg, R-D, Heßberger, FP, Hinde, DJ, Hoffmann, J, Hollinger, R, Hübner, A, Jäger, E, Kindler, B, Kratz, JV, Krier, J, Kurz, N, Laatiaoui, M, Lahiri, S, Lang, R, Lommel, B, Maiti, M, Miernik, K, Minami, S, Mistry, A, Mokry, C, Nitsche, H, Omtvedt, JP, Pang, GK, Papadakis, P, Renisch, D, Roberto, J, Rudolph, D, Runke, J, Rykaczewski, KP, Sarmiento, LG, Schädel, M, Schausten, B, Semchenkov, A, Shaughnessy, DA, Steinegger, P, Steiner, J, Tereshatov, EE, Thörle-Pospiech, P, Tinschert, K, De Heidenreich, T Torres, Trautmann, N, Türler, A, Uusitalo, J, Ward, DE, Wegrzecki, M, Wiehl, N, Van Cleve, SM, and Yakusheva, V

Subjects
Atomic, Molecular, Nuclear, Particle and Plasma Physics, Nuclear & Particles Physics
Abstract

The heaviest currently known nuclei, which have up to 118 protons, have been produced in Ca48 induced reactions with actinide targets. Among them, the element tennessine (Ts), which has 117 protons, has been synthesized by fusing Ca48 with the radioactive target Bk249, which has a half-life of 327 d. The experiment was performed at the gas-filled recoil separator TASCA. Two long and two short α decay chains were observed. The long chains were attributed to the decay of Ts294. The possible origin of the short-decay chains is discussed in comparison with the known experimental data. They are found to fit with the decay chain patterns attributed to Ts293. The present experimental results confirm the previous findings at the Dubna Gas-Filled Recoil Separator on the decay chains originating from the nuclei assigned to Ts.

Published
2019

12. Improving Nuclear Data Input for r-Process Calculations Around A 80

Author

Tolosa-Delgado, A., Agramunt, J., Ahn, D. S., Algora, A., Baba, H., Bae, S., Brewer, N. T., Bruno, C., Caballero Folch, R., Calviño, F., Coleman-Smith, P. J., Cortés, G., Davinson, T., Dillmann, I., Domingo-Pardo, C., Estrade, A., Fukuda, N., Go, S., Griffin, C. J., Grzywacz, R., Ha, J., Hall, O., Harkness-Brennan, L., Isobe, T., Kahl, D., Karny, M., Khiem, L. H., Kiss, G. G., Kogimtzis, M., Kubono, S., Labiche, M., Lazarus, I., Lee, J., Liang, J., Liu, J., Lorusso, G., Matsui, K., Miernik, K., Montes, F., Moon, B., Morales, A. I., Nepal, N., Nishimura, S., Page, R. D., Phong, V. H., Podolyak, Z., Pucknell, V. F. E., Rasco, B. C., Regan, P., Riego, A., Rubio, B., Rykaczewski, K. P., Saito, Y., Sakurai, H., Shimizu, Y., Simpson, J., Söderström, P.-A., Stracener, D. W., Sumikama, T., Suzuki, H., Tain, J. L., Takechi, M., Takeda, H., Tarifeño-Saldivia, A., Thomas, S. L., Woods, P. J., Xu, X. X., Yokoyama, R., Formicola, Alba, editor, Junker, Matthias, editor, Gialanella, Lucio, editor, and Imbriani, Gianluca, editor

Published
2019
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14. Fast-timing Investigation of \(A=128\) Isobars Populated in the \(\beta \)-decay of \(^{128}\)Cd

Author

Llanos-Expósito, M., primary, Fraile, L.M., additional, Benito, J., additional, Acosta, J., additional, Algora, A., additional, Andel, B., additional, Andreyev, A.N., additional, Antalic, S., additional, Bark, R.A., additional, Bernerd, C., additional, Bernier, N., additional, Bhengu, B., additional, Bittner, D., additional, Borge, M.J.G., additional, Briz, J.A., additional, Chrysalidis, K., additional, Cocolios, T.E., additional, Costache, C., additional, Cubiss, J.G., additional, De Witte, H., additional, Encina, N., additional, Esmaylzadeh, A., additional, Favier, Z., additional, Fernández, D., additional, Ferrera, C., additional, Fynbo, H.O.U., additional, García-Távora, V., additional, Georgiev, G., additional, Górska, M., additional, Heinke, R., additional, Herraiz, J.L., additional, Illana, A., additional, Jones, P., additional, Judson, D.S., additional, Jungclaus, A., additional, Karny, M., additional, Korgul, A., additional, Köster, U., additional, Kröll, Th., additional, Labiche, M., additional, Lalkovski, S., additional, Lesch, B., additional, Ley, M., additional, Lică, R., additional, Madurga, M., additional, Mărginean, N., additional, Marsh, B.A., additional, Miernik, K., additional, Mihai, C., additional, Mikolajczuk, M., additional, Mišt, J., additional, Murias, J.R., additional, Nácher, E., additional, Neacsu, C., additional, Nouvilas, V.M., additional, Ntshangase, S., additional, Olaizola, B., additional, Orce, J.N., additional, Page, C., additional, Pakarinen, J., additional, Papadakis, P., additional, Perea, A., additional, Piersa-Siłkowska, M., additional, Podolyak, Zs., additional, Rog, J., additional, Rothe, S., additional, Rozwoda, B., additional, Sánchez-Tembleque, V., additional, Solak, K., additional, Stegemann, S., additional, Stepaniuk, M., additional, Stoica, A., additional, Stryjczyk, M., additional, Tengblad, O., additional, Turturica, A., additional, Turturica, G., additional, Udías, J.M., additional, Ujeniuc, S., additional, Van Duppen, P., additional, von Tresckow, M., additional, Vasilev, I., additional, Warr, N., additional, Yue, Z., additional, and Zajda, S., additional

Published
2024
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15. Angular momentum generation in nuclear fission

Author

Wilson, J. N., Thisse, D., Lebois, M., Jovančević, N., Gjestvang, D., Canavan, R., Rudigier, M., Étasse, D., Gerst, R-B., Gaudefroy, L., Adamska, E., Adsley, P., Algora, A., Babo, M., Belvedere, K., Benito, J., Benzoni, G., Blazhev, A., Boso, A., Bottoni, S., Bunce, M., Chakma, R., Cieplicka-Oryńczak, N., Courtin, S., Cortés, M. L., Davies, P., Delafosse, C., Fallot, M., Fornal, B., Fraile, L., Gottardo, A., Guadilla, V., Häfner, G., Hauschild, K., Heine, M., Henrich, C., Homm, I., Ibrahim, F., Iskra, Ł. W., Ivanov, P., Jazrawi, S., Korgul, A., Koseoglou, P., Kröll, T., Kurtukian-Nieto, T., Le Meur, L., Leoni, S., Ljungvall, J., Lopez-Martens, A., Lozeva, R., Matea, I., Miernik, K., Nemer, J., Oberstedt, S., Paulsen, W., Piersa, M., Popovitch, Y., Porzio, C., Qi, L., Ralet, D., Regan, P. H., Rezynkina, K., Sánchez-Tembleque, V., Siem, S., Schmitt, C., Söderström, P.-A., Sürder, C., Tocabens, G., Vedia, V., Verney, D., Warr, N., Wasilewska, B., Wiederhold, J., Yavahchova, M., Zeiser, F., and Ziliani, S.

Published
2021
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16. β -delayed neutron emissions from N>50 gallium isotopes

Author

Yokoyama, R., primary, Grzywacz, R., additional, Rasco, B. C., additional, Brewer, N., additional, Rykaczewski, K. P., additional, Dillmann, I., additional, Tain, J. L., additional, Nishimura, S., additional, Ahn, D. S., additional, Algora, A., additional, Allmond, J. M., additional, Agramunt, J., additional, Baba, H., additional, Bae, S., additional, Bruno, C. G., additional, Caballero-Folch, R., additional, Calvino, F., additional, Coleman-Smith, P. J., additional, Cortes, G., additional, Davinson, T., additional, Domingo-Pardo, C., additional, Estrade, A., additional, Fukuda, N., additional, Go, S., additional, Griffin, C. J., additional, Ha, J., additional, Hall, O., additional, Harkness-Brennan, L. J., additional, Heideman, J., additional, Isobe, T., additional, Kahl, D., additional, Karny, M., additional, Kawano, T., additional, Khiem, L. H., additional, King, T. T., additional, Kiss, G. G., additional, Korgul, A., additional, Kubono, S., additional, Labiche, M., additional, Lazarus, I., additional, Liang, J., additional, Liu, J., additional, Lorusso, G., additional, Madurga, M., additional, Matsui, K., additional, Miernik, K., additional, Montes, F., additional, Morales, A. I., additional, Morrall, P., additional, Nepal, N., additional, Page, R. D., additional, Phong, V. H., additional, Piersa-Siłkowska, M., additional, Prydderch, M., additional, Pucknell, V. F. E., additional, Rajabali, M. M., additional, Rubio, B., additional, Saito, Y., additional, Sakurai, H., additional, Shimizu, Y., additional, Simpson, J., additional, Singh, M., additional, Stracener, D. W., additional, Sumikama, T., additional, Suzuki, H., additional, Takeda, H., additional, Tarifeño-Saldivia, A., additional, Thomas, S. L., additional, Tolosa-Delgado, A., additional, Wolińska-Cichocka, M., additional, Woods, P. J., additional, and Xu, X. X., additional

Published
2023
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17. Examination of how properties of a fissioning system impact isomeric yield ratios of the fragments

Author

Gjestvang, D., primary, Wilson, J. N., additional, Al-Adili, A., additional, Siem, S., additional, Gao, Z., additional, Randrup, J., additional, Thisse, D., additional, Lebois, M., additional, Jovančević, N., additional, Canavan, R., additional, Rudigier, M., additional, Étasse, D., additional, Gerst, R.-B., additional, Adamska, E., additional, Adsley, P., additional, Algora, A., additional, Belvedere, C., additional, Benito, J., additional, Benzoni, G., additional, Blazhev, A., additional, Boso, A., additional, Bottoni, S., additional, Bunce, M., additional, Chakma, R., additional, Cieplicka-Oryńczak, N., additional, Courtin, S., additional, Cortés, M. L., additional, Davies, P., additional, Delafosse, C., additional, Fallot, M., additional, Fornal, B., additional, Fraile, L., additional, Gottardo, A., additional, Guadilla, V., additional, Häfner, G., additional, Hauschild, K., additional, Heine, M., additional, Henrich, C., additional, Homm, I., additional, Ibrahim, F., additional, Iskra, Ł. W., additional, Ivanov, P., additional, Jazrawi, S., additional, Korgul, A., additional, Koseoglou, P., additional, Kröll, T., additional, Kurtukian-Nieto, T., additional, Leoni, S., additional, Ljungvall, J., additional, Lopez-Martens, A., additional, Lozeva, R., additional, Matea, I., additional, Miernik, K., additional, Nemer, J., additional, Oberstedt, S., additional, Paulsen, W., additional, Piersa-Siłkowska, M., additional, Popovitch, Y., additional, Porzio, C., additional, Qi, L., additional, Regan, P. H., additional, Rezynkina, K., additional, Sánchez-Tembleque, V., additional, Schmitt, C., additional, Söderström, P.-A., additional, Sürder, C., additional, Tocabens, G., additional, Vedia, V., additional, Verney, D., additional, Warr, N., additional, Wasilewska, B., additional, Wiederhold, J., additional, Yavahchova, M., additional, and Ziliani, S., additional

Published
2023
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18. Proton spectroscopy of 48Ni, 46Fe, and 44Cr

Author

Pomorski, M., Pfützner, M., Dominik, W., Grzywacz, R., Stolz, A., Baumann, T., Berryman, J. S., Czyrkowski, H., Dąbrowski, R., Fijałkowska, A., Ginter, T., Johnson, J., Kamiński, G., Larson, N., Liddick, S. N., Madurga, M., Mazzocchi, C., Mianowski, S., Miernik, K., Miller, D., Paulauskas, S., Pereira, J., Rykaczewski, K. P., and Suchyta, S.

Subjects
Nuclear Experiment
Abstract

Results of decay spectroscopy on nuclei in vicinity of the doubly magic 48Ni are presented. The measurements were performed with a Time Projection Chamber with optical readout which records tracks of ions and protons in the gaseous volume. Six decays of 48Ni including four events of two-proton ground-state radioactivity were recorded. An advanced reconstruction procedure yielded the 2p decay energy for 48Ni of Q2p = 1.29(4) MeV. In addition, the energy spectra of \b{eta}-delayed protons emitted in the decays of 44Cr and 46Fe, as well as half-lives and branching ratios were determined. The results were found to be consistent with the previous measurements made with Si detectors. A new proton line in the decay of 44Cr corresponding to the decay energy of 760 keV is reported. The first evidence for the \b{eta}2p decay of 46 Fe, based on one clear event, is shown., Comment: 13 pages, 12 figures, accepted for publication in Physical Review C

Published
2014
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19. Beta decay of 71,73Co; probing single particle states approaching doubly magic 78Ni

Author

Rajabali, M. M., Grzywacz, R., Liddick, S. N., Mazzocchi, C., Batchelder, J. C., Baumann, T., Bingham, C. R., Darby, I. G., Ginter, T. N., Ilyushkin, S. V., Karny, M., Królas, W., Mantica, P. F., Miernik, K., Pfützner, M., Rykaczewski, K. P., Weisshaar, D., and Winger, J. A.

Subjects
Nuclear Experiment
Abstract

Low-energy excited states in 71,73Ni populated via the {\beta} decay of 71,73Co were investigated in an experiment performed at the National Superconducting Cyclotron Laboratory (NSCL) at Michigan State University (MSU). Detailed analysis led to the construction of level schemes of 71,73Ni, which are interpreted using systematics and analyzed using shell model calculations. The 5/2- states attributed to the the f5/2 orbital and positive parity 5/2+ and 7/2+ states from the g9/2 orbital have been identified in both 71,73Ni. In 71Ni the location of a 1/2- {\beta}-decaying isomer is proposed and limits are suggested as to the location of the isomer in 73Ni. The location of positive parity cluster states are also identified in 71,73Ni. Beta-delayed neutron branching ratios obtained from this data are given for both 71,73Co., Comment: Accepted for publication in PRC

Published
2012
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20. Beta-Delayed Proton Emission Branches in 43Cr

Author

Pomorski, M., Miernik, K., Dominik, W., Janas, Z., Pfützner, M., Bingham, C. R., Czyrkowski, H., Cwiok, M., Darby, I. G., Dąbrowski, R., Ginter, T., Grzywacz, R., Karny, M., Korgul, A., Kuśmierz, W., Liddick, S. N., Rajabali, M., Rykaczewski, K., and Stolz, A.

Subjects
Nuclear Experiment, Nuclear Theory
Abstract

The beta+ decay of very neutron deficient 43Cr has been studied by means of an imaging time projection chamber which allowed recording tracks of charged particles. Events of beta-delayed emission of one-, two-, and three protons were clearly identified. The absolute branching ratios for these channels were determined to be 81(4)%, 7.1(4)%, and 0.08(3)%, respectively. The 43Cr is thus established as the second case in which the beta-3p decay occurs. Although the feeding to the proton-bound states in 43V is expected to be negligible, the large branching ratio of 12(4)% for decays without proton emission is found., Comment: 5 pages, 4 figures

Published
2010
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21. Two-proton radioactivity and three-body decay. V. Improved momentum distributions

Author

Grigorenko, L. V., Egorova, I. A., Zhukov, M. V., Charity, R. J., and Miernik, K.

Subjects
Nuclear Theory
Abstract

Nowadays quantum-mechanical theory allows one to reliably calculate the processes of 2p radioactivity (true three-body decays) and the corresponding energy and angular correlations up to distances of the order of 1000 fm. However, the precision of modern experiments has now become sufficient to indicate some deficiency of the predicted theoretical distributions. In this paper we discuss the extrapolation along the classical trajectories as a method to improve the convergence of the theoretical energy and angular correlations at very large distances (of the order of atomic distances), where only the long-range Coulomb forces are still operating. The precision of this approach is demonstrated using the "exactly" solvable semianalytical models with simplified three-body Hamiltonians. It is also demonstrated that for heavy 2p emitters, the 2p decay momentum distributions can be sensitive to the effect of the screening by atomic electrons. We compare theoretical results with available experimental data., Comment: 13 pages, 18 figures

Published
2010
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22. Fission of Fr215 studied with γ spectroscopic methods

Author

Miernik, K., primary, Korgul, A., additional, Poklepa, W., additional, Wilson, J. N., additional, Charles, G., additional, Czajkowski, S., additional, Czyż, P., additional, Fijałkowska, A., additional, Fraile, L. M., additional, Garczyński, P., additional, Hauschild, K., additional, Hiver, C., additional, Kurtukian-Nieto, T., additional, Lebois, M., additional, Llanos, M., additional, Lopez-Martens, A., additional, Treasa, K. M. Deby, additional, Ljungvall, J., additional, Matea, I., additional, Mielczarek, J., additional, Murias, J. R., additional, Pasqualato, G., additional, Skruch, A., additional, Solak, K., additional, Stoyachev, K., additional, and Tsekhanovich, I., additional

Published
2023
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24. Study of $$N=50$$ gap evolution around $$Z=32$$: new structure information for $${}^{82}$$Ge

Author

Thisse, D., primary, Lebois, M., additional, Verney, D., additional, Wilson, J. N., additional, Jovančević, N., additional, Rudigier, M., additional, Canavan, R., additional, Etasse, D., additional, Adsley, P., additional, Algora, A., additional, Babo, M., additional, Belvedere, K., additional, Benito, J., additional, Benzoni, G., additional, Blazhev, A., additional, Boso, A., additional, Bottoni, S., additional, Bunce, M., additional, Chakma, R., additional, Cieplicka-Oryńczak, N., additional, Courtin, S., additional, Cortés, M. L., additional, Davies, P., additional, Delafosse, C., additional, Fallot, M., additional, Fornal, B., additional, Fraile, L., additional, Gjestvang, D., additional, Gottardo, A., additional, Guadilla, V., additional, Gerst, R. -B., additional, Häfner, G., additional, Hauschild, K., additional, Heine, M., additional, Henrich, C., additional, Homm, I., additional, Hommet, J., additional, Ibrahim, F., additional, Iskra, Ł. W., additional, Ivanov, P., additional, Jazrawi, S., additional, Korgul, A., additional, Koseoglou, P., additional, Kröll, T., additional, Kurtukian-Nieto, T., additional, Meur, L. Le, additional, Leoni, S., additional, Ljungvall, J., additional, Lopez-Martens, A., additional, Lozeva, R., additional, Matea, I., additional, Miernik, K., additional, Nemer, J., additional, Oberstedt, S., additional, Paulsen, W., additional, Piersa-Silkowska, M., additional, Poklepa, W., additional, Popovitch, Y., additional, Porzio, C., additional, Qi, L., additional, Ralet, D., additional, Regan, P. H., additional, Reygadas-Tello, D., additional, Rezynkina, K., additional, Sánchez-Tembleque, V., additional, Siem, S., additional, Schmitt, C., additional, Söderström, P. -A., additional, Solak, K., additional, Sürder, C., additional, Tocabens, G., additional, Vedia, V., additional, Warr, N., additional, Wasilewska, B., additional, Wiederhold, J., additional, Yavahchova, M., additional, Zeiser, F., additional, and Ziliani, S., additional

Published
2023
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26. Improving Nuclear Data Input for r-Process Calculations Around A $$\sim $$ 80

Author

Tolosa-Delgado, A., primary, Agramunt, J., additional, Ahn, D. S., additional, Algora, A., additional, Baba, H., additional, Bae, S., additional, Brewer, N. T., additional, Bruno, C., additional, Caballero Folch, R., additional, Calviño, F., additional, Coleman-Smith, P. J., additional, Cortés, G., additional, Davinson, T., additional, Dillmann, I., additional, Domingo-Pardo, C., additional, Estrade, A., additional, Fukuda, N., additional, Go, S., additional, Griffin, C. J., additional, Grzywacz, R., additional, Ha, J., additional, Hall, O., additional, Harkness-Brennan, L., additional, Isobe, T., additional, Kahl, D., additional, Karny, M., additional, Khiem, L. H., additional, Kiss, G. G., additional, Kogimtzis, M., additional, Kubono, S., additional, Labiche, M., additional, Lazarus, I., additional, Lee, J., additional, Liang, J., additional, Liu, J., additional, Lorusso, G., additional, Matsui, K., additional, Miernik, K., additional, Montes, F., additional, Moon, B., additional, Morales, A. I., additional, Nepal, N., additional, Nishimura, S., additional, Page, R. D., additional, Phong, V. H., additional, Podolyak, Z., additional, Pucknell, V. F. E., additional, Rasco, B. C., additional, Regan, P., additional, Riego, A., additional, Rubio, B., additional, Rykaczewski, K. P., additional, Saito, Y., additional, Sakurai, H., additional, Shimizu, Y., additional, Simpson, J., additional, Söderström, P.-A., additional, Stracener, D. W., additional, Sumikama, T., additional, Suzuki, H., additional, Tain, J. L., additional, Takechi, M., additional, Takeda, H., additional, Tarifeño-Saldivia, A., additional, Thomas, S. L., additional, Woods, P. J., additional, Xu, X. X., additional, and Yokoyama, R., additional

Published
2019
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27. Complete β -decay patterns of Cs142,Ba142, and La142 determined using total absorption spectroscopy

Author

Wolińska-Cichocka, M., primary, Rasco, B. C., additional, Rykaczewski, K. P., additional, Brewer, N. T., additional, Fijałkowska, A., additional, Karny, M., additional, Grzywacz, R. K., additional, Goetz, K. C., additional, Gross, C. J., additional, Stracener, D. W., additional, Zganjar, E. F., additional, Batchelder, J. C., additional, Blackmon, J. C., additional, Go, S., additional, Heffron, B., additional, Johnson, J., additional, King, T. T., additional, Matta, J. T., additional, Miernik, K., additional, Madurga, M., additional, McCutchan, E. A., additional, Miller, D., additional, Nesaraja, C. D., additional, Paulauskas, S. V., additional, Rajabali, M. M., additional, Taylor, S., additional, Sonzogni, A. A., additional, Wang, E. H., additional, Winger, J. A., additional, Xiao, Y., additional, and Zachary, C. J., additional

Published
2023
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28. Examination of how properties of a fissioning system impact isomeric yield ratios of the fragments

Author

Gjestvang, D., Wilson, J. N., Al-Adili, Ali, Siem, S., Gao, Zhihao, Randrup, J., Thisse, D., Lebois, M., Jovancevic, N., Canavan, R., Rudigier, M., Etasse, D., Gerst, R. -b., Adamska, E., Adsley, P., Algora, A., Belvedere, C., Benito, J., Benzoni, G., Blazhev, A., Boso, A., Bottoni, S., Bunce, M., Chakma, R., Cieplicka-Orynczak, N., Courtin, S., Cortes, M. L., Davies, P., Delafosse, C., Fallot, M., Fornal, B., Fraile, L., Gottardo, A., Guadilla, V., Hafner, G., Hauschild, K., Heine, M., Henrich, C., Homm, I., Ibrahim, F., Iskra, L. W., Ivanov, P., Jazrawi, S., Korgul, A., Koseoglou, P., Kroll, T., Kurtukian-Nieto, T., Leoni, S., Ljungvall, J., Lopez-Martens, A., Lozeva, R., Matea, I., Miernik, K., Nemer, J., Oberstedt, S., Paulsen, W., Piersa-Silkowska, M., Popovitch, Y., Porzio, C., Qi, L., Regan, P. H., Rezynkina, K., Sanchez-Tembleque, V., Schmitt, C., Soderstrom, P. -a., Surder, C., Tocabens, G., Vedia, V., Verney, D., Warr, N., Wasilewska, B., Wiederhold, J., Yavahchova, M., Ziliani, S., Gjestvang, D., Wilson, J. N., Al-Adili, Ali, Siem, S., Gao, Zhihao, Randrup, J., Thisse, D., Lebois, M., Jovancevic, N., Canavan, R., Rudigier, M., Etasse, D., Gerst, R. -b., Adamska, E., Adsley, P., Algora, A., Belvedere, C., Benito, J., Benzoni, G., Blazhev, A., Boso, A., Bottoni, S., Bunce, M., Chakma, R., Cieplicka-Orynczak, N., Courtin, S., Cortes, M. L., Davies, P., Delafosse, C., Fallot, M., Fornal, B., Fraile, L., Gottardo, A., Guadilla, V., Hafner, G., Hauschild, K., Heine, M., Henrich, C., Homm, I., Ibrahim, F., Iskra, L. W., Ivanov, P., Jazrawi, S., Korgul, A., Koseoglou, P., Kroll, T., Kurtukian-Nieto, T., Leoni, S., Ljungvall, J., Lopez-Martens, A., Lozeva, R., Matea, I., Miernik, K., Nemer, J., Oberstedt, S., Paulsen, W., Piersa-Silkowska, M., Popovitch, Y., Porzio, C., Qi, L., Regan, P. H., Rezynkina, K., Sanchez-Tembleque, V., Schmitt, C., Soderstrom, P. -a., Surder, C., Tocabens, G., Vedia, V., Verney, D., Warr, N., Wasilewska, B., Wiederhold, J., Yavahchova, M., and Ziliani, S.

Abstract

The population of isomeric states in the prompt decay of fission fragments-so-called isomeric yield ratios (IYRs)-is known to be sensitive to the angular momentum J that the fragment emerged with, and may therefore contain valuable information on the mechanism behind the fission process. In this work, we investigate how changes in the fissioning system impact the measured IYRs of fission fragments to learn more about what parameters affect angular momentum generation. To enable this, a new technique for measuring IYRs is first demonstrated. It is based on the time of arrival of discrete gamma rays, and has the advantage that it enables the study of the IYR as a function of properties of the partner nucleus. This technique is used to extract the IYR of 134Te, strongly populated in actinide fission, from the three different fissioning systems: 232Th(n, f), 238U(n, f), at two different neutron energies, as well as 252Cf(sf). The impacts of changing the fissioning system, the compound nuclear excitation energy, the minimum J of the binary partner, and the number of neutrons emitted on the IYR of 134Te are determined. The decay code TALYS is used in combination with the fission simulation code FREYA to calculate the primary fragment angular momentum from the IYR. We find that the IYR of 134Te has a slope of 0.004 +/- 0.002 with increase in compound nucleus (CN) mass. When investigating the impact on the IYR of increased CN excitation energy, we find no change with an energy increase similar to the difference between thermal and fast fission. By varying the mass of the partner fragment emerging with 134Te, it is revealed that the IYR of 134Te is independent of the total amount of prompt neutrons emitted from the fragment pair. This indicates that neutrons carry minimal angular momentum away from the fission fragments. Comparisons with the FREYA+TALYS simulations reveal that the average angular momentum in 134Te following 238U(n, f) is 6.0 h over bar . This is not consiste

Published
2023
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29. First identification of 58Zn β-delayed proton emission

Author

Ciemny, A., primary, Dominik, W., additional, Ginter, T., additional, Grzywacz, R., additional, Janas, Z., additional, Kuich, M., additional, Mazzocchi, C., additional, Pfutzner, M., additional, Pomorski, M., additional, Bazin, D., additional, Baumann, T., additional, Bezbakh, A., additional, Crider, B., additional, Cwiok, M., additional, Go, S., additional, Kaminski, G., additional, Kolos, K., additional, Korgul, A., additional, Kwan, E., additional, Liddick, S., additional, Miernik, K., additional, Paulauskas, S., additional, Pereira, J, additional, Roginski, T., additional, Rykaczewski, K., additional, Sumithtatachchi, C., additional, Xiao, Y., additional, Schatz, H., additional, and Sarriguren, P., additional

Published
2020
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30. Half-life Measurement Using Implant-\((\beta -\gamma )\) Time Correlations in the Region of Neutron-rich Lanthanides

Author

Vitéz-Sveiczer, A., primary, Kovács, S., additional, Kiss, G.G., additional, Saito, Y., additional, Tarifeño-Saldivia, A., additional, Pallas, M., additional, Tain, J.L., additional, Dillmann, I., additional, Agramunt, J., additional, Algora, A., additional, Domingo-Pardo, C., additional, Estrade, A., additional, Appleton, C., additional, Allmond, J.M., additional, Aguilera, P., additional, Baba, H., additional, Brewer, N.T., additional, Bruno, C., additional, Caballero-Folch, R., additional, Calvino, F., additional, Coleman-Smith, P.J., additional, Cortes, G., additional, Davinson, T., additional, Fukuda, N., additional, Ge, Z., additional, Go, S., additional, Griffin, C.J., additional, Grzywacz, R.K., additional, Hall, O., additional, Horváth, A., additional, Ha, J., additional, Harkness-Brennan, L.J., additional, Isobe, T., additional, Kahl, D., additional, King, T.T., additional, Korgul, A., additional, Krücken, R., additional, Kubono, S., additional, Labiche, M., additional, Liu, J., additional, Liang, J., additional, Madurga, M., additional, Miernik, K., additional, Molina, F., additional, Morales, A.I., additional, Mumpower, M.R., additional, Nacher, E., additional, Navarro, A., additional, Nepal, N., additional, Nishimura, S., additional, Piersa-Siłkowska, M., additional, Phong, V., additional, Rasco, B.C., additional, Rubio, B., additional, Rykaczewski, K.P., additional, Romero-Barrientos, J., additional, Sakurai, H., additional, Sexton, L., additional, Shimizu, Y., additional, Singh, M., additional, Sprouse, T., additional, Sumikama, T., additional, Surman, R., additional, Suzuki, H., additional, Szegedi, T.N., additional, Takeda, H., additional, Tolosa-Delgado, A., additional, Wang, K., additional, Wolinska-Cichocka, M., additional, Woods, P., additional, Yokoyama, R., additional, and Xu, Z., additional

Published
2023
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31. β -Delayed One and Two Neutron Emission Probabilities Southeast of Sn132 and the Odd-Even Systematics in r -Process Nuclide Abundances

Author

Phong, V. H., primary, Nishimura, S., additional, Lorusso, G., additional, Davinson, T., additional, Estrade, A., additional, Hall, O., additional, Kawano, T., additional, Liu, J., additional, Montes, F., additional, Nishimura, N., additional, Grzywacz, R., additional, Rykaczewski, K. P., additional, Agramunt, J., additional, Ahn, D. S., additional, Algora, A., additional, Allmond, J. M., additional, Baba, H., additional, Bae, S., additional, Brewer, N. T., additional, Bruno, C. G., additional, Caballero-Folch, R., additional, Calviño, F., additional, Coleman-Smith, P. J., additional, Cortes, G., additional, Dillmann, I., additional, Domingo-Pardo, C., additional, Fijalkowska, A., additional, Fukuda, N., additional, Go, S., additional, Griffin, C. J., additional, Ha, J., additional, Harkness-Brennan, L. J., additional, Isobe, T., additional, Kahl, D., additional, Khiem, L. H., additional, Kiss, G. G., additional, Korgul, A., additional, Kubono, S., additional, Labiche, M., additional, Lazarus, I., additional, Liang, J., additional, Liu, Z., additional, Matsui, K., additional, Miernik, K., additional, Moon, B., additional, Morales, A. I., additional, Morrall, P., additional, Nepal, N., additional, Page, R. D., additional, Piersa-Siłkowska, M., additional, Pucknell, V. F. E., additional, Rasco, B. C., additional, Rubio, B., additional, Sakurai, H., additional, Shimizu, Y., additional, Stracener, D. W., additional, Sumikama, T., additional, Suzuki, H., additional, Tain, J. L., additional, Takeda, H., additional, Tarifeño-Saldivia, A., additional, Tolosa-Delgado, A., additional, Wolińska-Cichocka, M., additional, Woods, P. J., additional, and Yokoyama, R., additional

Published
2022
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32. 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

Author

Kiss, G. G., primary, Vitéz-Sveiczer, A., additional, Saito, Y., additional, Tarifeño-Saldivia, A., additional, Pallas, M., additional, Tain, J. L., additional, Dillmann, I., additional, Agramunt, J., additional, Algora, A., additional, Domingo-Pardo, C., additional, Estrade, A., additional, Appleton, C., additional, Allmond, J. M., additional, Aguilera, P., additional, Baba, H., additional, Brewer, N. T., additional, Bruno, C., additional, Caballero-Folch, R., additional, Calvino, F., additional, Coleman-Smith, P. J., additional, Cortes, G., additional, Davinson, T., additional, Fukuda, N., additional, Ge, Z., additional, Go, S., additional, Griffin, C. J., additional, Grzywacz, R. K., additional, Hall, O., additional, Horváth, A., additional, Ha, J., additional, Harkness-Brennan, L. J., additional, Isobe, T., additional, Kahl, D., additional, King, T. T., additional, Korgul, A., additional, Kovács, S., additional, Krücken, R., additional, Kubono, S., additional, Labiche, M., additional, Liu, J., additional, Liang, J., additional, Madurga, M., additional, Miernik, K., additional, Molina, F., additional, Morales, A. I., additional, Mumpower, M. R., additional, Nacher, E., additional, Navarro, A., additional, Nepal, N., additional, Nishimura, S., additional, Piersa-Siłkowska, M., additional, Phong, V., additional, Rasco, B. C., additional, Rubio, B., additional, Rykaczewski, K. P., additional, Romero-Barrientos, J., additional, Sakurai, H., additional, Sexton, L., additional, Shimizu, Y., additional, Singh, M., additional, Sprouse, T., additional, Sumikama, T., additional, Surman, R., additional, Suzuki, H., additional, Szegedi, T. N., additional, Takeda, H., additional, Tolosa, A., additional, Wang, K., additional, Wolinska-Cichocka, M., additional, Woods, P., additional, Yokoyama, R., additional, and Xu, Z., additional

Published
2022
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34. First Results from the Modular Total Absorption Spectrometer at the HRIBF

Author

Fijałkowska, A., Karny, M., Rykaczewski, K.P., Wolińska-Cichocka, M., Grzywacz, R., Gross, C.J., Johnson, J.W., Rasco, B.C., Zganjar, E.F., Stracener, D.W., Jost, C., Goetz, K.C., Goans, R., Spejewski, E., Cartegni, L., Madurga, M., Miernik, K., Miller, D., Padgett, S.W., Paulauskas, S.V., Al-Shudifat, M., Hamilton, J.H., and Ramayya, A.V.

Published
2014
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36. Review of even element super-heavy nuclei and search for element 120

Author

Hofmann, S., Heinz, S., Mann, R., Maurer, J., Münzenberg, G., Antalic, S., Barth, W., Burkhard, H. G., Dahl, L., Eberhardt, K., Grzywacz, R., Hamilton, J. H., Henderson, R. A., Kenneally, J. M., Kindler, B., Kojouharov, I., Lang, R., Lommel, B., Miernik, K., Miller, D., Moody, K. J., Morita, K., Nishio, K., Popeko, A. G., Roberto, J. B., Runke, J., Rykaczewski, K. P., Saro, S., Scheidenberger, C., Schött, H. J., Shaughnessy, D. A., Stoyer, M. A., Thörle-Pospiech, P., Tinschert, K., Trautmann, N., Uusitalo, J., and Yeremin, A. V.

Published
2016
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37. First measurement of 60Ge $\beta$-decay

Author

Ciemny, A. A., Dominik, W., Ginter, T., Grzywacz, R., Janas, Z., Kuich, M., Mazzocchi, C., Miernik, K., Pfützner, M., Pomorski, M., Bazin, D., Baumann, T., Bezbakh, A., Crider, B. P., Ćwiok, M., Go, S., Kamiński, G., Kolos, K., Korgul, A., Kwan, E., Liddick, S. N., Paulauskas, S. V., Pereira, J., Rykaczewski, K. P., Sumithrarachchi, C., and Xiao, Y.

Published
2016
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38. Remarks on the fission barriers of super-heavy nuclei

Author

Hofmann, S., Heinz, S., Mann, R., Maurer, J., Münzenberg, G., Antalic, S., Barth, W., Dahl, L., Eberhardt, K., Grzywacz, R., Hamilton, J. H., Henderson, R. A., Kenneally, J. M., Kindler, B., Kojouharov, I., Lang, R., Lommel, B., Miernik, K., Miller, D., Moody, K. J., Morita, K., Nishio, K., Popeko, A. G., Roberto, J. B., Runke, J., Rykaczewski, K. P., Scheidenberger, C., Shaughnessy, D. A., Stoyer, M. A., Thörle-Pospiech, P., Tinschert, K., Trautmann, N., Uusitalo, J., and Yeremin, A. V.

Published
2016
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39. Beta-decay studies near 100Sn

Author

Karny, M., Batist, L., Banu, A., Becker, F., Blazhev, A., Burkard, K., Brüchle, W., Döring, J., Faestermann, T., Górska, M., Grawe, H., Janas, Z., Jungclaus, A., Kavatsyuk, M., Kavatsyuk, O., Kirchner, R., La Commara, M., Mandal, S., Mazzocchi, C., Miernik, K., Mukha, I., Muralithar, S., Plettner, C., Płochocki, A., Roeckl, E., Romoli, M., Rykaczewski, K., Schädel, M., Schmidt, K., Schwengner, R., Żylicz, J., Gross, Carl J., editor, Nazarewicz, Witold, editor, and Rykaczewski, Krzysztof P., editor

Published
2005
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40. Deciphering Nb98 β decay with the Modular Total Absorption Spectrometer at ORNL

Author

Rasco, B. C., primary, Rykaczewski, K. P., additional, Fijałkowska, A., additional, Karny, M., additional, Wolińska-Cichocka, M., additional, Grzywacz, R. K., additional, Stracener, D. W., additional, Zganjar, E. F., additional, Batchelder, J. C., additional, Blackmon, J. C., additional, Brewer, N. T., additional, Cooper, M. P., additional, Goetz, K. C., additional, Johnson, J. W., additional, King, T., additional, Laminack, A., additional, Matta, J. T., additional, Miernik, K., additional, Madurga, M., additional, Miller, D., additional, Rajabali, M. M., additional, Ruland, T., additional, Shuai, P., additional, Stepaniuk, M., additional, and Winger, J., additional

Published
2022
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43. Determination of β -decay feeding patterns of Rb88 and Kr88 using the Modular Total Absorption Spectrometer at ORNL HRIBF

Author

Shuai, P., primary, Rasco, B. C., additional, Rykaczewski, K. P., additional, Fijałkowska, A., additional, Karny, M., additional, Wolińska-Cichocka, M., additional, Grzywacz, R. K., additional, Gross, C. J., additional, Stracener, D. W., additional, Zganjar, E. F., additional, Batchelder, J. C., additional, Blackmon, J. C., additional, Brewer, N. T., additional, Go, S., additional, Cooper, M., additional, Goetz, K. C., additional, Johnson, J. W., additional, Jost, C. U., additional, King, T. T., additional, Matta, J. T., additional, Hamilton, J. H., additional, Laminack, A., additional, Miernik, K., additional, Madurga, M., additional, Miller, D., additional, Nesaraja, C. D., additional, Padgett, S., additional, Paulauskas, S. V., additional, Rajabali, M. M., additional, Ruland, T., additional, Stepaniuk, M., additional, Wang, E. H., additional, and Winger, J. A., additional

Published
2022
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44. First beta-decay spectroscopy of In-135 and new beta-decay branches of In-134

Author

Piersa-Silkowska, M, Korgul, A, Benito, J, Fraile, LM, Adamska, E, Andreyev, AN, Alvarez-Rodriguez, R, Barzakh, AE, Benzoni, G, Berry, T, Borge, MJG, Carmona, M, Chrysalidis, K, Correia, JG, Costache, C, Cubiss, JG, Goodacre, T Day, De Witte, H, Fedorov, D, Fedosseev, VN, Fernandez-Martinez, G, Fijalkowska, A, Fynbo, H, Galaviz, D, Galve, P, Garcia-Diez, M, Greenlees, PT, Grzywacz, R, Harkness-Brennan, LJ, Henrich, C, Huyse, M, Ibanez, P, Illana, A, Janas, Z, Johnston, K, Jolie, J, Judson, DS, Karanyonchev, V, Kicinska-Habior, M, Konki, J, Koszuk, L, Kurcewicz, J, Lazarus, I, Lica, R, Lopez-Montes, A, Mach, H, Madurga, M, Marroquin, I, Marsh, B, Martinez, MC, Mazzocchi, C, Miernik, K, Mihai, C, Marginean, N, Marginean, R, Negret, A, Nacher, E, Ojala, J, Olaizola, B, Page, RD, Pakarinen, J, Pascu, S, Paulauskas, S, Perea, A, Pucknell, V, Rahkila, P, Raison, C, Rapisarda, E, Rezynkina, K, Rotaru, F, Rothe, S, Rykaczewski, KP, Regis, J-M, Schomacker, K, Silkowski, M, Simpson, G, Sotty, C, Stan, L, Stanoiu, M, Stryjczyk, M, Sanchez-Parcerisa, D, Sanchez-Tembleque, V, Tengblad, O, Turturica, A, Udias, JM, Van Duppen, P, Vedia, V, Villa, A, Vinals, S, Wadsworth, R, Walters, WB, Warr, N, and Wilkins, SG

Subjects
ISOMER, Science & Technology, NEUTRON EMISSION PROBABILITIES, Physics, MODEL, Physics, Nuclear, NUCLEAR-DATA SHEETS, STATES, Physical Sciences, ISOTOPES, PICOSECOND LIFETIME MEASUREMENTS, RICH NUCLEI, HALF-LIVES, SN-132
Abstract

ispartof: PHYSICAL REVIEW C vol:104 issue:4 status: published

Published
2021

45. First β-decay spectroscopy of $^{135}$In and new $β$-decay branches of $^{134}$In

Author

Piersa-Siłkowska, M., Korgul, A., Benito, J., Fraile, L.M., Adamska, E., Andreyev, A.N., Álvarez-Rodríguez, R., Barzakh, A.E., Benzoni, G., Berry, T., Borge, M.J.G., Carmona, M., Chrysalidis, K., Correia, J.G., Costache, C., Cubiss, J.G., Day Goodacre, T., De Witte, H., Fedorov, D.V., Fedosseev, V.N., Fernández-Martínez, G., Fijałkowska, A., Fynbo, H., Galaviz, D., Galve, P., García-Díez, M., Greenlees, P.T., Grzywacz, R., Harkness-Brennan, L.J., Henrich, C., Huyse, M., Ibáñez, P., Illana, A., Janas, Z., Johnston, K., Jolie, J., Judson, D.S., Karanyonchev, V., Kicińska-Habior, M., Konki, J., Koszuk, Ł., Kurcewicz, J., Lazarus, I., Lică, R., López-Montes, A., Mach, H., Madurga, M., Marroquín, I., Marsh, B., Martínez, M.C., Mazzocchi, C., Miernik, K., Mihai, C., Mărginean, N., Mărginean, R., Negret, A., Nácher, E., Ojala, J., Olaizola, B., Page, R.D., Pakarinen, J., Pascu, S., Paulauskas, S.V., Perea, A., Pucknell, V., Rahkila, P., Raison, C., Rapisarda, E., Rezynkina, K., Rotaru, F., Rothe, S., Rykaczewski, K.P., Régis, J.-M., Schomacker, K., Siłkowski, M., Simpson, G., Sotty, C., Stan, L., Stănoiu, M., Stryjczyk, M., Sánchez-Parcerisa, D., Sánchez-Tembleque, V., Tengblad, O., Turturică, A., Udías, J.M., Van Duppen, P., Vedia, V., Villa, A., Viñals, S., Wadsworth, R., Walters, W.B., Warr, N., Wilkins, S.G., Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA), and IDS

Subjects
isotoopit, mittaus, Astrophysics::High Energy Astrophysical Phenomena, spektroskopia, Nuclear Theory, Nuclear Physics - Experiment, neutronit, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], fysiikka, ydinfysiikka, Nuclear Experiment
Abstract

International audience; The $\beta$ decay of the neutron-rich $^{134}$In and $^{135}$In was investigated experimentally in order to provide new insights into the nuclear structure of the tin isotopes with magic proton number $Z=50$ above the $N=82$ shell. The $\beta$-delayed $\gamma$-ray spectroscopy measurement was performed at the ISOLDE facility at CERN, where indium isotopes were selectively laser-ionized and on-line mass separated. Three $\beta$-decay branches of $^{134}$In were established, two of which were observed for the first time. Population of neutron-unbound states decaying via $\gamma$ rays was identified in the two daughter nuclei of $^{134}$In, $^{134}$Sn and $^{133}$Sn, at excitation energies exceeding the neutron separation energy by 1 MeV. The $\beta$-delayed one- and two-neutron emission branching ratios of $^{134}$In were determined and compared with theoretical calculations. The $\beta$-delayed one-neutron decay was observed to be dominant $\beta$-decay branch of $^{134}$In even though the Gamow-Teller resonance is located substantially above the two-neutron separation energy of $^{134}$Sn. Transitions following the $\beta$ decay of $^{135}$In are reported for the first time, including $\gamma$ rays tentatively attributed to $^{135}$Sn. In total, six new levels were identified in $^{134}$Sn on the basis of the $\beta \gamma \gamma$ coincidences observed in the $^{134}$In and $^{135}$In $\beta$ decays. A transition that might be a candidate for deexciting the missing neutron single-particle $13/2^+$ state in $^{133}$Sn was observed in both $\beta$ decays and its assignment is discussed. Experimental level schemes of $^{134}$Sn and $^{135}$Sn are compared with shell-model predictions. Using the fast timing technique, half-lives of the $2^+$, $4^+$ and $6^+$ levels in $^{134}$Sn were determined.

Published
2021

46. Neutron emission from unbound states in 135Sn

Author

Grzywacz, Robert, Korgul, A, Madurga, M, Fraile, L M, Xu, Z, Piersa-Siłkowska, M, Benito, J, Algora, A, Allmond, J M, Bardayan, D, Bielak, P, Fijałkowska, A, Gaffney, L P, Guadilla, V, Heideman, J, Henrich, C, Neupane, S, King, T T, Kitamura, N, Koszuk, Ł, García Borge, M J, Illana, A, Janas, Z, Jones, K L, Kankainen, A, Karny, K, Kawano, T, Kolos, K, Kröll, T, Lama, A, Lică, R, Llanos, M, Morales, A I, Mazzocchi, C, Mihai, C, Miernik, K, Murias, J R, Orrigo, S E A, Page, R D, Podolyák, Zs, Poklepa, W, Rasco, B C, Rajabali, M M, Rubio, B, Rudigier, M, Rykaczewski, K, Siegl, K, Singh, M, Stepaniuk, M, Stryjczyk, M, Solak, K, Sotty, C, Tengblad, O, Tresckow, M, Warr, N, Wimmer, K, DeWitte, H, and Yokoyama, R

Subjects
Detectors and Experimental Techniques
Published
2021

47. β-delayed neutron emission of r-process nuclei at the N = 82 shell closure

Author

Hall, O., Davinson, T., Estrade, A., Liu, J., Lorusso, G., Montes, F., Nishimura, S., Phong, V.H., Woods, P.J., Agramunt, J., Ahn, D.S., Algora, A., Allmond, J.M., Baba, H., Bae, S., Brewer, N.T., Bruno, C.G., Caballero-Folch, R., Calviño, F., Coleman-Smith, P.J., Cortes, G., Dillmann, I., Domingo-Pardo, C., Fijalkowska, A., Fukuda, N., Go, S., Griffin, C.J., Grzywacz, R., Ha, J., Harkness-Brennan, L.J., Isobe, T., Kahl, D., Khiem, L.H., Kiss, G.G., Korgul, A., Kubono, S., Labiche, M., Lazarus, I., Liang, J., Liu, Z., Matsui, K., Miernik, K., Moon, B., Morales, A.I., Morrall, P., Mumpower, M.R., Nepal, N., Page, R.D., Piersa, M., Pucknell, V.F.E., Rasco, B.C., Rubio, B., Rykaczewski, K.P., Sakurai, H., Shimizu, Y., Stracener, D.W., Sumikama, T., Suzuki, H., Tain, J.L., Takeda, H., Tarifeño-Saldivia, A., Tolosa-Delgado, A., Wolińska-Cichocka, M., and Yokoyama, R.

Published
2021
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48. Levels in Cd125 populated by the β decay of Ag125m and Ag125

Author

Batchelder, J. C., primary, Apgar, C., additional, Brewer, N. T., additional, Gross, C. J., additional, Grzywacz, R. K., additional, Ilyushkin, S., additional, Madurga, M., additional, Miernik, K., additional, Padgett, S. W., additional, Paulauskas, S. V., additional, Peters, W. A., additional, Rasco, B. C., additional, Rykaczewski, K. P., additional, Stracener, D. W., additional, Winger, J. A., additional, Wolińska-Cichocka, M., additional, Zganjar, E. F., additional, Bardayan, D. W., additional, Howard, M. E., additional, Manning, B., additional, Matos, M., additional, Mendez, A. J., additional, Miller, D., additional, Ratkiewicz, A., additional, and Wang, E. H., additional

Published
2021
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49. First lifetime investigations of N>82 iodine isotopes: The quest for collectivity

Author

Häfner, G., primary, Lozeva, R., additional, Naïdja, H., additional, Lebois, M., additional, Jovančević, N., additional, Thisse, D., additional, Etasse, D., additional, Canavan, R. L., additional, Rudigier, M., additional, Wilson, J. N., additional, Adamska, E., additional, Adsley, P., additional, Algora, A., additional, Babo, M., additional, Belvedere, K., additional, Benito, J., additional, Benzoni, G., additional, Blazhev, A., additional, Boso, A., additional, Bottoni, S., additional, Bunce, M., additional, Chakma, R., additional, Cieplicka-Oryńczak, N., additional, Collins, S. M., additional, Cortés, M. L., additional, Davies, P. J., additional, Delafosse, C., additional, Fallot, M., additional, Fraile, L. M., additional, Gerst, R.-B., additional, Gjestvang, D., additional, Guadilla, V., additional, Hauschild, K., additional, Henrich, C., additional, Homm, I., additional, Ibrahim, F., additional, Iskra, Ł. W., additional, Jazwari, S., additional, Korgul, A., additional, Koseoglou, P., additional, Kröll, Th., additional, Kurtukian-Nieto, T., additional, Le-meur, L., additional, Leoni, S., additional, Ljungvall, J., additional, Lopez-Martens, A., additional, Matthieu, L., additional, Miernik, K., additional, Nemer, J., additional, Oberstedt, S., additional, Paulsen, W., additional, Piersa-Siłkowska, M., additional, Popovitch, Y., additional, Porzio, C., additional, Qi, L., additional, Ralet, D., additional, Regan, P. H., additional, Reygadas Tello, D., additional, Rezynkina, K., additional, Sanchez-Tembleque, V., additional, Schmitt, C., additional, Söderström, P.-A., additional, Sürder, C., additional, Tocabens, G., additional, Vedia, V., additional, Verney, D., additional, Warr, N., additional, Wasilewska, B., additional, Wiederhold, J., additional, Yavahchova, M. S., additional, Zeiser, F., additional, and Ziliani, S., additional

Published
2021
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50. Spectroscopy and lifetime measurements in 134,136,138Te isotopes and implications for the nuclear structure beyond N = 82

Author

Häfner, G., Naïdja, H., Lebois, M., Jovancevic, N., Thisse, D., Etasse, D, Canavan, R, Rudigier, M., Wilson, J. N., Adamska, E, Adsley, P, Babo, M., Belvedere, K., Benito, J., Benzoni, G., Blazhev, A., Boso, A., Bottoni, S., Bunce, M., Chakma, R., Cieplicka-Orynczak, N., Collins, S. M., Cortés, M. L., Davies, P. J., Delafosse, C., Fallot, M., Fornal, B., Fraile, L. M., Gerst, R.-B., Gjestvang, Dorthea, Guadilla, V., Hauschild, K., Henrich, C., Homm, I., Ibrahim, F., Iskra, ŁW, Jazwari, S., Jolie, J., Korgul, A., Koseoglou, P., Kröll, Th., Kurtukian-Nieto, T., Le-meur, L., Ljungvall, J., Lopez-Martens, A., Matea, I., Matthieu, L., Miernik, K., Nemer, J., Oberstedt, S., Paulsen, Wanja, Piersa, M., Popovitch, Y., Porzio, C., Qi, L., Ralet, D., Regan, P. H., Reygadas Tello, D., Rezynkina, K., Sanchez, V., Schmitt, C., Söderström, P.A., Sürder, C., Tocabens, G., Vedia, V., Verney, D., Warr, N., Wasilewska, B., Wiederhold, J., Yavahchova, Y. S., Zeiser, Fabio, and Ziliani, S.

Abstract

We report on spectroscopic information and lifetime measurements of even-even neutron-rich Te isotopes. Excited states were populated in fast-neutron induced fission of 238U at the ALTO facility of IJCLab with the LICORNE neutron source and detected using the hybrid ν-ball spectrometer. We provide first results on lifetimes of the 6+1 state in 136Te and the (6+1), (4+1), and (2+1) states in 138Te and discuss the results in the context of large-scale shell-model calculations. The level schemes of 136Te and 138Te are revised in terms of lifetimes of their 2+1,4+1 states and updated information on the (4+2) state in 136Te is presented. In addition, previously reported data on spectroscopy and lifetimes in 134Te are reexamined. This work provides new insights into the evolution of collectivity for Te isotopes with N=82,84,86.

Published
2021

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