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51. Benchmarking the PreSPEC@GSI experiment for Coulex-multipolarimetry on the π(p3/2)→π(p1/2)85Br spin-flip transition in π(p3/2)→π(p1/2)85Br

Author

Napiralla, P., Lettmann, M., Stahl, C., Rainovski, G., Pietralla, N., Afara, S., Ameil, F., Arici, T., Aydin, S., Barrientos, D., Bednarczyk, P., Bentley, M. A., Benzoni, G., Birkenbach, B., Blazhev, A., Boston, A. J., Boutachkov, P., Bracco, A., Bruyneel, B., Clément, E., Cortés, M. L., Crespi, F. C. L., Cullen, D. M., Curien, D., Désesquelles, P., Didierjean, F., Domingo-Pardo, C., Duchêne, G., Eberth, J., Egger, H., Fahlander, C., Gerl, J., Gladnishki, K. A., Golubev, P., González, V., Górska, M., Gottardo, A., Grassi, L., Habermann, T., Harkness-Brennan, L. J., Hess, H., Jenkins, D. G., John, P. R., Jolie, J., Judson, D. S., Kojouharov, I., Korten, W., Labiche, M., Lalović, N., Lizarazo, C., Louchart-Henning, C., Maj, A., Menegazzo, R., Mengoni, D., Merchan, E., Million, B., Möller, O., Möller, T., Moschner, K., Modamio, V., Napoli, D., Singh, B. S. Nara, Podolyák, Zs., Pietri, S., Ralet, D., Reese, M., Reiter, P., Rudolph, D., Sanchis, E., Sarmiento, L. G., Schaffner, H., Simpson, J., Singh, P. P., Valiente-Dobón, J. J., Werner, V., and Wieland, O.

Published
2020
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52. Coulomb excitation of the K" = 8~ isomeric band in 178Hf

Author

Napiorkovsk, PJ, Srebrny, J, Czosnyka, T, Gerl, J, Schlegel, GH, Wollersiieim, HJ, Cline, D, Wu, CY, Teng, R, Vetter, K, Macchiavell, A, Devlin, M, Deoers, J, Ivanicki, J, Kovnacki, J, Loeve, M, and Wuerkner, M

Subjects
Nuclear & Particles Physics, Mathematical Sciences, Physical Sciences
Abstract

The Coulomb excitation experiment on the 178Hf was performed using 650 MeV beam of 13GXe. The first observation of discrete transitions in the Kπ = 8~ isomeric band. Coulomb excited from Kπ = 0+ ground state, is reported. The possible mechanisms of El coupling of the ground state band and the isomeric band is discussed.

Published
2001

53. Coulomb excitation of the Kπ=8- isomeric band in 178Hf

Author

Napiorkowski, PJ, Srebrny, J, Czosnyka, T, Gerl, J, Schlegel, C, Wollersheim, HJ, Cline, D, Wu, CY, Teng, R, Vetter, K, Macchiavelli, A, Devlin, M, DeBoer, J, Iwanicki, J, Kownacki, J, Loewe, M, and Wuerkner, M

Subjects
Mathematical Sciences, Physical Sciences, Nuclear & Particles Physics, Mathematical sciences, Physical sciences
Abstract

The Coulomb excitation experiment on the 178Hf was performed using 650 MeV beam of 13GXe. The first observation of discrete transitions in the Kπ = 8~ isomeric band. Coulomb excited from Kπ = 0+ ground state, is reported. The possible mechanisms of El coupling of the ground state band and the isomeric band is discussed.

Published
2001

54. Shape evolution in even-mass 98-104Zr isotopes via lifetime measurements using the γ γ-coincidence technique

Author

Pasqualato, G., Ansari, S., Heines, J. S., Modamio, V., Gorgen, A., Korten, W., Ljungvall, J., Clement, E., Dudouet, J., Lemasson, A., Rodriguez, T. R., Allmond, J. M., Arici, T., Beckmann, K. S., Bruce, A. M., Doherty, D., Esmaylzadeh, A., Gamba, E. R., Gerhard, L., Gerl, J., Georgiev, G., Ivanova, D. P., Jolie, J., Kim, Y. -H, Knafla, L., Korichi, A., Koseoglou, P., Labiche, M., Lalkovski, S., Lauritsen, T., Li, H. -J, Pedersen, L. G., Pietri, S., Ralet, D., Regis, J. M., Rudigier, M., Saha, S., Sahin, E., Siem, S., Singh, P., Soederstroem, P-A, Theisen, C., Tornyi, T., Vandebrouck, M., Witt, W., Zielinska, M., Barrientos, D., Bednarczyk, P., Benzoni, G., Boston, A. J., Boston, H. C., Bracco, A., Cederwall, B., Ciemala, M., de France, G., Domingo-Pardo, C., Eberth, J., Gadea, A., Gonzalez, V., Gottardo, A., Harkness-Brennan, L. J., Hess, H., Judson, D. S., Jungclaus, A., Lenzi, S. M., Leoni, S., Menegazzo, R., Mengoni, D., Michelagnoli, C., Napoli, D. R., Nyberg, Johan, Podolyak, Zs., Pullia, A., Recchia, F., Reiter, P., Rezynkina, K., Salsac, M. D., Sanchis, E., Senyigit, M., Siciliano, M., Simpson, J., Sohler, D., Stezowski, O., Valiente-Dobon, J. J., Verney, D., Pasqualato, G., Ansari, S., Heines, J. S., Modamio, V., Gorgen, A., Korten, W., Ljungvall, J., Clement, E., Dudouet, J., Lemasson, A., Rodriguez, T. R., Allmond, J. M., Arici, T., Beckmann, K. S., Bruce, A. M., Doherty, D., Esmaylzadeh, A., Gamba, E. R., Gerhard, L., Gerl, J., Georgiev, G., Ivanova, D. P., Jolie, J., Kim, Y. -H, Knafla, L., Korichi, A., Koseoglou, P., Labiche, M., Lalkovski, S., Lauritsen, T., Li, H. -J, Pedersen, L. G., Pietri, S., Ralet, D., Regis, J. M., Rudigier, M., Saha, S., Sahin, E., Siem, S., Singh, P., Soederstroem, P-A, Theisen, C., Tornyi, T., Vandebrouck, M., Witt, W., Zielinska, M., Barrientos, D., Bednarczyk, P., Benzoni, G., Boston, A. J., Boston, H. C., Bracco, A., Cederwall, B., Ciemala, M., de France, G., Domingo-Pardo, C., Eberth, J., Gadea, A., Gonzalez, V., Gottardo, A., Harkness-Brennan, L. J., Hess, H., Judson, D. S., Jungclaus, A., Lenzi, S. M., Leoni, S., Menegazzo, R., Mengoni, D., Michelagnoli, C., Napoli, D. R., Nyberg, Johan, Podolyak, Zs., Pullia, A., Recchia, F., Reiter, P., Rezynkina, K., Salsac, M. D., Sanchis, E., Senyigit, M., Siciliano, M., Simpson, J., Sohler, D., Stezowski, O., Valiente-Dobon, J. J., and Verney, D.

Abstract

The Zirconium (Z = 40) isotopic chain has attracted interest for more than four decades. The abrupt lowering of the energy of the first 2(+) state and the increase in the transition strength B(E2; 2(1)(+) -> 0(1)(+) ) going from Zr-98 to Zr-100 has been the first example of "quantum phase transition" in nuclear shapes, which has few equivalents in the nuclear chart. Although a multitude of experiments have been performed to measure nuclear properties related to nuclear shapes and collectivity in the region, none of the measured lifetimes were obtained using the Recoil Distance Doppler Shift method in the gamma gamma-coincidence mode where a gate on the direct feeding transition of the state of interest allows a strict control of systematical errors. This work reports the results of lifetime measurements for the first yrast excited states in Zr98-104 carried out to extract reduced transition probabilities. The new lifetime values in gamma gamma-coincidence and gamma-single mode are compared with the results of former experiments. Recent predictions of the Interacting Boson Model with Configuration Mixing, the Symmetry Conserving Configuration Mixing model based on the Hartree-Fock- Bogoliubov approach and the Monte Carlo Shell Model are presented and compared with the experimental data.

Published
2023
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55. Nuclear structure aspects of the heaviest N similar to Z nuclei south of Sn-100

Author

Gorska, M., Albers, H. M., Arici, T., Banerjee, A., Benzoni, G., Blazhev, A., Cederwall, Bo, Das, B., Davinson, T., Gerl, J., Grawe, H., Hall, O., Hubbard, N., Jazrawi, S., Jolie, J., Mikolajczuk, M., Mistry, A. K., Mengoni, D., Podolyak, Zs., Polettini, M., Regan, P. H., Ruedigier, M., Yaneva, A., Vesic, J., Zhang, G., Gorska, M., Albers, H. M., Arici, T., Banerjee, A., Benzoni, G., Blazhev, A., Cederwall, Bo, Das, B., Davinson, T., Gerl, J., Grawe, H., Hall, O., Hubbard, N., Jazrawi, S., Jolie, J., Mikolajczuk, M., Mistry, A. K., Mengoni, D., Podolyak, Zs., Polettini, M., Regan, P. H., Ruedigier, M., Yaneva, A., Vesic, J., and Zhang, G.

Abstract

Ever-lasting interest in the structure of Sn-100 and neighbouring nuclei is still well justified by the fact that it is the heaviest doubly-magic nucleus with N=Z. State-of-the-art experimental techniques involving stable and radioactive beam facilities have enabled access to these exotic nuclei. In particular, the analysis of experimental data obtained in two DESPEC experiments at GSI Darmstadt extends the information on the shell structure and its evolution towards N = Z = 50, and allows the study of seniority conservation and proton-neutron interaction in the g(9/2) orbit. Several theoretical approaches for shell-model investigations are discussed and their predictive power assessed. The calculated systematics of the reduced transition probabilities for high- to medium-spin states in N similar to Z isotopes with active g(9/2) orbit is presented for the first time., QC 20230731

Published
2023
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56. Recoil-α-fission and recoil-α–α-fission events observed in the reaction 48Ca + 243Am

Author

Forsberg, U., Rudolph, D., Andersson, L.-L., Di Nitto, A., Düllmann, Ch.E., Fahlander, C., Gates, J.M., Golubev, P., Gregorich, K.E., Gross, C.J., Herzberg, R.-D., Heßberger, F.P., Khuyagbaatar, J., Kratz, J.V., Rykaczewski, K., Sarmiento, L.G., Schädel, M., Yakushev, A., Åberg, S., Ackermann, D., Block, M., Brand, H., Carlsson, B.G., Cox, D., Derkx, X., Dobaczewski, J., Eberhardt, K., Even, J., Gerl, J., Jäger, E., Kindler, B., Krier, J., Kojouharov, I., Kurz, N., Lommel, B., Mistry, A., Mokry, C., Nazarewicz, W., Nitsche, H., Omtvedt, J.P., Papadakis, P., Ragnarsson, I., Runke, J., Schaffner, H., Schausten, B., Shi, Yue, Thörle-Pospiech, P., Torres, T., Traut, T., Trautmann, N., Türler, A., Ward, A., Ward, D.E., and Wiehl, N.

Published
2016
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58. Scanning of a Double-Sided Germanium Strip Detector

Author

Sharma Arzoo, Palit R., Kojouharov I., Gerl J., Gorska-Ott M., Schaffner H., Habermann T., Saha S., Das Biswajit, Dey P., Donthi R., Naidu B.S., Mandal S., and Singh Pushpendra P.

Subjects
double-sided strip detector, positron annihilation correlation, position sensitive detector, pulse shape analysis, Physics, QC1-999
Abstract

This work presents the results from the characterization of a Position-Sensitive Planar Germanium (PSPGe) detector. The PSPGe detector is a double-sided orthogonal strip detector consisting of 10x10 electrical segmentation along the horizontal and vertical directions. The characterization was performed using the coincidence setup between the PSPGe detector and the well-characterized scanning system employing the positron annihilation correlation principle. The scanning system consists of a Position Sensitive Detector (PSD) and 22Na positron source. The main objective of this study is to deploy PSPGe detector for future decay experiments at the Facility for Antiproton and Ion Research (FAIR), Germany. The measurements have been performed to find the depth of gamma-ray interaction in the planar segmented detector. The 2-Dimensional image obtained from the PSD has been used to find the depth of gamma-ray interaction in the planar strip detector using pulse shape analysis. In addition, the sensitivity of PSPGe detector has been investigated by calculating the rise-time from pulse shapes for the front and back strips of the detector.

Published
2021
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59. Shape evolution in even-mass 98-104Zr isotopes via lifetime measurements using the γγ-coincidence technique.

Author

Pasqualato, G., Ansari, S., Heines, J. S., Modamio, V., Görgen, A., Korten, W., Ljungvall, J., Clément, E., Dudouet, J., Lemasson, A., Rodríguez, T. R., Allmond, J. M., Arici, T., Beckmann, K. S., Bruce, A. M., Doherty, D., Esmaylzadeh, A., Gamba, E. R., Gerhard, L., and Gerl, J.

Abstract

The Zirconium (Z = 40) isotopic chain has attracted interest for more than four decades. The abrupt lowering of the energy of the first 2 + state and the increase in the transition strength B(E2; 2 1 + → 0 1 +) going from 98 Zr to 100 Zr has been the first example of “quantum phase transition” in nuclear shapes, which has few equivalents in the nuclear chart. Although a multitude of experiments have been performed to measure nuclear properties related to nuclear shapes and collectivity in the region, none of the measured lifetimes were obtained using the Recoil Distance Doppler Shift method in the γ γ -coincidence mode where a gate on the direct feeding transition of the state of interest allows a strict control of systematical errors. This work reports the results of lifetime measurements for the first yrast excited states in 98 - 104 Zr carried out to extract reduced transition probabilities. The new lifetime values in γ γ -coincidence and γ -single mode are compared with the results of former experiments. Recent predictions of the Interacting Boson Model with Configuration Mixing, the Symmetry Conserving Configuration Mixing model based on the Hartree–Fock–Bogoliubov approach and the Monte Carlo Shell Model are presented and compared with the experimental data. [ABSTRACT FROM AUTHOR]

Published
2023
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60. Probing binary fragmentation dynamics of 48Ti + 232Th reaction at an excitation energy of 63.5 MeV.

Author

Shruti, Behera, B. R., Saneesh, N., Nasirov, A. K., Arora, H., Sharma, Chetan, Amit, Subodh, Arora, Divya, Chakraborty, Kajol, Kaur, Amninderjeet, Raghav, Kumar, Mohit, Golda, K. S., Jhingan, A., Sugathan, P., Singh, Hardev, Mandal, S., Wollersheim, H. J., and Gerl, J.

Abstract

The present work concerns the study of fission dynamics of 48 Ti+ 232 Th reaction resulting in the superheavy composite system 280 Cn 112 at an incident energy of 280 MeV. Mass distribution studies play an important role in understanding the fusion-fission mechanism involved in the heavy-ion induced nuclear reaction. The studies related to the superheavy nucleus 280 Cn are limited till date and in order to achieve a better insight of the reaction dynamics, mass and total kinetic energy (TKE) distribution of the binary fragments populated in the reaction 48 Ti+ 232 Th has been measured at an excitation energy 63.5 MeV. Correlation between the mass and TKE and mass-angle distribution of the binary fragments have been investigated. The mass-energy distribution of the reaction fragments obtained from the analysis confirms the dominance of quasi-fission over fusion-fission. A sudden rise in the width of σ TKE 2 (M) has been observed in the mass symmetric region. This has been interpreted in terms of the mixing of fusion-fission and quasi-fission events. A deviation from the Viola systematic is observed in the measured TKE of the fragments due to the presence of quasi-fission (QF) process. Theoretical results performed to understand the experimental results in the framework of the DNS model show that the peaks in the mass distribution of the binary products around the mass numbers A = 40–60 and A = 220–240 is related with the contribution of the DIC and quasi-fission products. The contribution of the quasi-fission products to the yield of the binary fragments with the mass numbers around A = 80–110 and A = 170–200 is dominant. The contribution of the symmetric quasi-fission products to the yield of the mass symmetric region is comparable with the yield of the fusion-fission products. [ABSTRACT FROM AUTHOR]

Published
2023
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61. Fast-timing Measurement in \(^{96}\)Pd: Improved Accuracy for the Lifetime of the \(4_1^{+}\) State

Author

Yaneva, A., primary, Jazrawi, S., additional, Das, B., additional, Mikolajczuk, M., additional, Górska, M., additional, Regan, P.H., additional, Cederwall, B., additional, Jolie, J., additional, Benzoni, G., additional, Albers, H.M., additional, Alhomaidhi, S., additional, Arici, T., additional, Banerjee, A., additional, Chishti, M.M.R., additional, Davinson, T., additional, Gerl, J., additional, Hall, O., additional, Hubbard, N., additional, Kojouharov, I., additional, Mistry, A.K., additional, Polettini, M., additional, Rudigier, M., additional, Sahin, E., additional, Schaffner, H., additional, Sharma, A., additional, Wollersheim, H.J., additional, Boutachkov, P., additional, Dickel, T., additional, Haettner, E., additional, Heggen, H., additional, Hornung, Ch., additional, Knöbel, R., additional, Kostyleva, D., additional, Kurz, N., additional, Kuzminchuk, N., additional, Mukha, I., additional, Pietri, S., additional, Plass, W.R., additional, Podolyak, Zs., additional, Scheidenberger, C., additional, Tanaka, Y.K., additional, Vesic, J., additional, Weick, H., additional, Ahmed, U., additional, Aktas, Ö., additional, Algora, A., additional, Appleton, C., additional, Benito, J., additional, Blazhev, A., additional, Bracco, A., additional, Bruce, A., additional, Brunet, M., additional, Canavan, R., additional, Esmaylzadeh, A., additional, Fraile, L.M., additional, Häfner, G., additional, Hucka, K.P., additional, John, P.R., additional, Kahl, D., additional, Karayonchev, V., additional, Kern, R., additional, Kosir, G., additional, Lozeva, R., additional, Napiralla, P., additional, Nara Singh, B.S., additional, Page, R.D., additional, Petrache, C.M., additional, Pietralla, N., additional, Regis, J.-M., additional, Rösch, H., additional, Ruotsalainen, P., additional, Sanchez-Temble, V., additional, Sexton, L., additional, Shearman, R., additional, Si, M., additional, Werner, V., additional, Wiederhold, J., additional, Wimmer, K., additional, Witt, W., additional, Woods, P., additional, and Zimba, G., additional

Published
2023
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64. Sodium-22-radiolabeled silica nanoparticles as new radiotracer for biomedical applications: in vivo positron emission tomography imaging, biodistribution, and biocompatibility

Author

Al Faraj A, Alotaibi B, Shaik AP, Shamma KZ, Al Jammaz I, and Gerl J

Subjects
Medicine (General), R5-920
Abstract

Achraf Al Faraj,1 Basem Alotaibi,2 Abjal Pasha Shaik,3 Khaled Z Shamma,1 Ibrahim Al Jammaz,2 Jürgen Gerl4 1Molecular and Cellular Imaging Lab, Department of Radiological Sciences, College of Applied Medical Sciences, King Saud University, 2Cyclotron and Radiopharmaceutical Department, King Faisal Specialist Hospital and Research Centre, 3Department of Clinical Lab Sciences, College of Applied Medical Sciences, King Saud University, Riyadh, Saudi Arabia; 4GSI Helmholtzzentrum für Schwerionenforschung GmbH, Darmstadt, Germany Abstract: Despite their advantageous chemical properties for nuclear imaging, radioactive sodium-22 (22Na) tracers have been excluded for biomedical applications because of their extremely long lifetime. In the current study, we proposed, for the first time, the use of 22Na radiotracers for pre-clinical applications by efficiently loading with silica nanoparticles (SiNPs) and thus offering a new life for this radiotracer. Crown-ether-conjugated SiNPs (300 nm; -0.18±0.1 mV) were successfully loaded with 22Na with a loading efficacy of 98.1%±1.4%. Noninvasive positron emission tomography imaging revealed a transient accumulation of 22Na-loaded SiNPs in the liver and to a lower extent in the spleen, kidneys, and lung. However, the signal gradually decreased in a time-dependent manner to become not detectable starting from 2 weeks postinjection. These observations were confirmed ex vivo by quantifying 22Na radioactivity using γ-counter and silicon content using inductively coupled plasma-mass spectrometry in the blood and the different organs of interest. Quantification of Si content in the urine and feces revealed that SiNPs accumulated in the organs were cleared from the body within a period of 2 weeks and completely in 1 month. Biocompatibility evaluations performed during the 1-month follow-up study to assess the possibility of synthesized nanocarriers to induce oxidative stress or DNA damage confirmed their safety for pre-clinical applications. 22Na-loaded nanocarriers can thus provide an innovative diagnostic agent allowing ultra-sensitive positron emission tomography imaging. On the other hand, with its long lifetime, onsite generators or cyclotrons will not be required as 22Na can be easily stored in the nuclear medicine department and be used on-demand. Keywords: silica nanoparticles, sodium-22, radiotracer, biodistribution, noninvasive PET imaging, biocompatibility, nanomedicine

Published
2015

65. High-spin states in Po above the -decaying (18 ) Isomer

Author

Zago, L., Gottardo, A., Valiente-Dobón, J.J., Benzoni, G., Gadea, A., Górska, M., Lunardi, S., Podolyák, Zs., Regan, P.H., Rudolph, D., Algora, A., de Angelis, G., Bazzacco, D., Benlliure, J., Boutachkov, P., Bracco, A., Bruce, A.M., Camera, F., Casarejos, E., Cortés, M.L., Crespi, F.C.L., Corsi, A., Domingo-Pardo, C., Doncel, M., Engert, T., Geissel, H., Gerl, J., Goasduff, A., Goel, N., Grebosz, J., Gregor, E., Habermann, T., Klupp, S., Kojouharov, I., Kurz, N., Lenzi, S.M., Leoni, S., Mandal, S., Menegazzo, R., Mengoni, D., Million, B., Morales, A.I., Napoli, D.R., Naqvi, F., Nociforo, C., Pfützner, M., Pietri, S., Prochazka, A., Recchia, F., Sahin, E., Schaffner, H., Sharma, A., Sitar, B., Siwal, D., Strmen, P., Szarka, I., Ur, C.A., Walker, P.M., Weick, H., Wieland, O., and Wollersheim, H.J.

Abstract

The nucleus $^{212}$Po has been produced through the fragmentation of a $^{238}$U primary beam at 1 GeV/nucleon at GSI, separated with the FRagment Separator, FRS, and studied via isomer γ-decay spectroscopy with the RISING setup. Two delayed previously unknown γ rays have been observed. One has been attributed to the E3 decay of a 21$^{−}$ isomeric state feeding the α-emitting 45-s (18$^{+}$) high-spin isomer. The other γ-ray line has been assigned to the decay of a higher-lying 23$^{+}$ metastable state. These are the first observations of high-spin states above the $^{212}$Po (18$^{+}$) isomer, by virtue of the selectivity obtained via ion-by-ion identification of $^{238}$U fragmentation products. Comparison with shell-model calculations points to shortfalls in the nuclear interactions involving high-j proton and neutron orbitals, to which the region around Z∼100 is sensitive.

Published
2022

66. Decay studies in the A similar to 225 Po-Fr region from the DESPEC campaign at GSI in 2021

Author

Polettini, M, Pellumaj, J, Benzoni, G, Zhang, G, Mengoni, D, Vidal, RM Perez, Genna, D, Bracco, A, Aggez, G, Al Aqueel, M, Alayed, B, Albers, HM, Algora, A, Alhomaidhi, S, Appleton, C, Arici, T, Armstrong, M, Arnswald, K, Balogh, M, Banerjee, A, Blazhev, A, Bottoni, S, Boutachkov, P, Bruce, A, Bruno, C, Camera, F, Cederwall, B, Chishti, MMR, Cox, DM, Crespi, FCL, Das, B, Davinson, T, De Angelis, G, Dickel, T, Doncel, M, Donthi, R, Ertoprak, A, Escudeiro, R, Esmaylzadeh, A, Fraile, LM, Gaffney, L, Gamba, ER, Gerl, J, Gottardo, A, Ha, J, Haettner, E, Hall, O, Heggen, H, Hrabar, Y, Hubbard, N, Jazrawi, S, John, PR, Jolie, J, Jones, C, Joss, D, Judson, D, Kahl, D, Karayonchev, V, Kazantseva, E, Kern, R, Knafla, L, Kojouharov, I, Korgul, A, Korten, W, Koseoglou, P, Kosir, G, Kostyleva, D, Kurtukian-Nieto, T, Kurz, N, Kuzminchuk, N, Labiche, M, Lenzi, S, Leoni, S, Lozeva, R, Mertzimekis, TJ, Mikolajczuk, M, Million, B, Mistry, AK, Morales, A, Mukha, I, Murias, JR, Napoli, D, NaraSingh, BS, O'Donnell, D, Orrigo, SEA, Page, R, Pelonis, S, Petrovic, J, Pietralla, N, Pietri, S, Pigliapoco, S, Podolyak, Zs, Porzio, C, Quintana Arnes, B, Recchia, F, Regan, PH, Reiter, P, Rezynkina, K, Roy, P, Rudigier, M, Ruotsalainen, P, Sahin, E, Sarmiento, LG, Satrazani, M-M, Schaffner, H, Scheidenberger, C, Sexton, L, Sharma, A, Smallcombe, J, Sood, A, Vasileiou, P, Vesic, J, Vilhena, J, Waring, L, Weick, H, Werner, V, Wiederhold, J, Wieland, O, Wimmer, K, Wollersheim, HJ, Woods, P, Yaneva, A, Zanon, I, Zhao, J, Zidarova, R, Ziliani, S, Zimba, G, and Zyriliou, A

Subjects
Science & Technology, Physics, Physical Sciences, Physics, Multidisciplinary
Abstract

ispartof: NUOVO CIMENTO C-COLLOQUIA AND COMMUNICATIONS IN PHYSICS vol:45 issue:5 status: published

Published
2022

67. High-spin states in 212Po above the α-decaying (18+) isomer

Author

Zago, L., primary, Gottardo, A., additional, Valiente-Dobón, J.J., additional, Benzoni, G., additional, Gadea, A., additional, Górska, M., additional, Lunardi, S., additional, Podolyák, Zs., additional, Regan, P.H., additional, Rudolph, D., additional, Algora, A., additional, de Angelis, G., additional, Bazzacco, D., additional, Benlliure, J., additional, Boutachkov, P., additional, Bracco, A., additional, Bruce, A.M., additional, Camera, F., additional, Casarejos, E., additional, Cortés, M.L., additional, Crespi, F.C.L., additional, Corsi, A., additional, Domingo-Pardo, C., additional, Doncel, M., additional, Engert, T., additional, Geissel, H., additional, Gerl, J., additional, Goasduff, A., additional, Goel, N., additional, Grebosz, J., additional, Gregor, E., additional, Habermann, T., additional, Klupp, S., additional, Kojouharov, I., additional, Kurz, N., additional, Lenzi, S.M., additional, Leoni, S., additional, Mandal, S., additional, Menegazzo, R., additional, Mengoni, D., additional, Million, B., additional, Morales, A.I., additional, Napoli, D.R., additional, Naqvi, F., additional, Nociforo, C., additional, Pfützner, M., additional, Pietri, S., additional, Prochazka, A., additional, Recchia, F., additional, Sahin, E., additional, Schaffner, H., additional, Sharma, A., additional, Sitar, B., additional, Siwal, D., additional, Strmen, P., additional, Szarka, I., additional, Ur, C.A., additional, Walker, P.M., additional, Weick, H., additional, Wieland, O., additional, and Wollersheim, H.-J., additional

Published
2022
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68. CALIFA, a Dedicated Calorimeter for the R3B/FAIR

Author

Cortina-Gil, D., Alvarez-Pol, H., Aumann, T., Avdeichikov, V., Bendel, M., Benlliure, J., Bertini, D., Bezbakh, A., Bloch, T., Böhmer, M., Borge, M.J.G., Briz, J.A., Cabanelas, P., Casarejos, E., Carmona Gallardo, M., Cederkäll, J., Chulkov, L., Dierigl, M., Di Julio, D., Durán, I., Fiori, E., Fomichev, A., Galaviz, D., Gascón, M., Gernhäuser, R., Gerl, J., Golubev, P., Golovkov, M., González, D., Gorshkov, A., Heinz, A., Heil, M., Henning, W., Ickert, G., Ignatov, A., Jakobsson, B., Johansson, H.T., Kröll, Th., Krücken, R., Krupko, S., Kurz, N., Le Bleis, T., Löher, B., Nacher, E., Nilsson, T., Parrilla, C., Perea, A., Pietralla, N., Pietras, B., Reifarth, R., Sanchez del Rio, J., Savran, D., Sidorchuk, S., Simon, H., Schnorrenberger, L., Tengblad, O., Teubig, P., Thies, R., Vilán, J.A., von Schmid, M., Winkel, M., Winkler, S., Wamers, F., and Yañez, P.

Published
2014
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70. In-beam and decay spectroscopy of transfermium elements

Author

Greenlees, P. T., Amzal, N., Bastin, J. E., Bouchez, E., Butler, P. A., Chatillon, A., Dorvaux, O., Eeckhaudt, S., Eskola, K., Gall, B., Gerl, J., Grahn, T., Göorgen, A., Hammond, N. J., Hauschild, K., Herzberg, R. -D., Heßberger, F. -P., Humphreys, R. D., Höurstel, A., Jenkins, D. G., Jones, G. D., Jones, P., Julin, R., Juutinen, S., Kankaanpää, H., Keenan, A., Kettunen, H., Khalfallah, F., Khoo, T. L., Korten, W., Kuusiniemi, P., Le Coz, Y., Leino, M., Leppänen, A. -P., Muikku, M., Nieminen, P., Pakarinen, J., Rahkila, P., Reiter, P., Rousseau, M., Scholey, C., Theisen, Ch., Uusitalo, J., Wilson, J., Wollersheim, H. -J., Gross, Carl J., editor, Nazarewicz, Witold, editor, and Rykaczewski, Krzysztof P., editor

Published
2005
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71. Coulomb excitation of neutron-rich beams at REX-ISOLDE

Author

Scheit, H., Niedermaier, O., Bildstein, V., Boie, H., Fitting, J., von Hahn, R., Köck, F., Lauer, M., Pal, U. K., Podlech, H., Repnow, R., Schwalm, D., Alvarez, C., Ames, F., Bollen, G., Emhofer, S., Habs, D., Kester, O., Lutter, R., Rudolph, K., Pasini, M., Thirolf, P. G., Wolf, B. H., Eberth, J., Gersch, G., Hess, H., Reiter, P., Thelen, O., Warr, N., Weisshaar, D., Aksouh, F., Van den Bergh, P., Van Duppen, P., Huyse, M., Ivanov, O., Mayet, P., Van de Walle, J., Äystö, J., Butler, P. A., Cederkäll, J., Delahaye, P., Fynbo, H. O. U., Fraile, L. M., Forstner, O., Franchoo, S., Köster, U., Nilsson, T., Oinonen, M., Sieber, T., Wenander, F., Pantea, M., Richter, A., Schrieder, G., Simon, H., Behrens, T., Gernhäuser, R., Kröll, T., Krücken, R., Münch, M., Davinson, T., Gerl, J., Huber, G., Hurst, A., Iwanicki, J., Jonson, B., Lieb, P., Liljeby, L., Schempp, A., Scherillo, A., Schmidt, P., Walter, G., Gross, Carl J., editor, Nazarewicz, Witold, editor, and Rykaczewski, Krzysztof P., editor

Published
2005
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72. One-neutron knockout of 23O

Author

Cortina-Gil, D., Fernandez-Vazquez, J., Aumann, T., Baumann, T., Benlliure, J., Borge, M. J. G., Chulkov, L. V., Pramanik, U. Datta, Forssén, C., Fraile, L. M., Geissel, H., Gerl, J., Hammache, F., Itahashi, K., Janik, R., Jonson, B., Mandal, S., Markenroth, K., Meister, M., Mocko, M., Münzenberg, G., Ohtsubo, T., Ozawa, A., Prezado, Y., Pribora, V., Riisager, K., Scheit, H., Schneider, R., Schrieder, G., Simon, H., Sitar, B., Stolz, A., Strmen, P., Sümmerer, K., Szarka, I., Weick, H., Gross, Carl J., editor, Nazarewicz, Witold, editor, and Rykaczewski, Krzysztof P., editor

Published
2005
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73. Status of the RISING project at GSI

Author

Becker, F., Banu, A., Beck, T., Bednarczyk, P., Doornenbal, P., Geissel, H., Gerl, J., Górska, M., Grawe, H., Grebosz, J., Hellström, M., Kojouharov, I., Kurz, N., Lozeva, R., Mandal, S., Muralithar, S., Prokopowicz, W., Saito, N., Saito, T. R., Schaffner, H., Weick, H., Wheldon, C., Winkler, M., Wollersheim, H. J., Jolie, J., Reiter, P., Warr, N., Bürger, A., Hübel, H., Simpson, J., Bentley, M. A., Hammond, G., Benzoni, G., Bracco, A., Camera, F., Million, B., Wieland, O., Kmiecik, M., Maj, A., Meczynski, W., Styczeń, J., Fahlander, C., Rudolph, D., Gross, Carl J., editor, Nazarewicz, Witold, editor, and Rykaczewski, Krzysztof P., editor

Published
2005
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74. Nuclear structure aspects of the heaviest N∼Z nuclei south of 100Sn

Author

Gorska, M., Albers, H. M., Arici, T., Banerjee, A., Benzoni, G., Blazhev, A., Cederwall, B., Das, B., Davinson, T., Gerl, J., Grawe, H., Hall, O., Hubbard, N., Jazrawi, S., Jolie, J., Mikolajczuk, M., Mistry, A. K., Mengoni, D., Podolyak, Z., Polettini, M., Regan, P. H., Rudigier, M., Yaneva, A., Vesic, J., and Zhang, G.

Subjects
History, Computer Science Applications, Education
Abstract

Ever-lasting interest in the structure of 100Sn and neighbouring nuclei is still well justified by the fact that it is the heaviest doubly-magic nucleus with N=Z. State-of-the-art experimental techniques involving stable and radioactive beam facilities have enabled access to these exotic nuclei. In particular, the analysis of experimental data obtained in two DESPEC experiments at GSI Darmstadt extends the information on the shell structure and its evolution towards N = Z = 50, and allows the study of seniority conservation and proton-neutron interaction in the g9/2 orbit. Several theoretical approaches for shell-model investigations are discussed and their predictive power assessed. The calculated systematics of the reduced transition probabilities for high- to medium-spin states in N∼Z isotopes with active g9/2 orbit is presented for the first time.

Published
2023
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75. In-beam spectroscopy of 253,254No

Author

Herzberg, R.-D., Amzal, N., Bastin, J. E., Becker, F., Brew, P. M. T., Butler, P. A., Chewter, A. J. C., Cocks, J. F. C., Dorvaux, O., Eskola, K., Gerl, J., Greenlees, P. T., Hammond, N. J., Hauschild, K., Helariutta, K., Heßberger, F., Houry, M., Hürstel, A., Humphreys, R. D., Jones, G. D., Jones, P. M., Julin, R., Juutinen, S., Kankaanpää, H., Kettunen, H., Khoo, T. L., Korten, W., Kuusiniemi, P., Le Coz, Y., Leino, M., Leppänen, A. P., Lister, C. J., Lucas, R., Muikku, M., Nieminen, P., Page, R. D., Page, T., Rahkila, P., Reiter, P., Schlegel, Ch., Scholey, C., Sletten, G., Stezowski, O., Theisen, Ch., Trzaska, W. H., Uusitalo, J., Wollersheim, H. J., Äystö, Juha, editor, Dendooven, Peter, editor, Jokinen, Ari, editor, and Leino, Matti, editor

Published
2003
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76. Probing intruder structures in lead nuclei

Author

Page, R. D., Ackerman, D., Andreyev, A. N., Cagarda, P., Eskola, K., Gerl, J., Greenlees, P. T., Heßberger, F. P., Heyde, K., Hofmann, S., Huyse, M., Jones, P., Joss, D. T., Julin, R., Juutinen, S., Kankaanpää, H., Keenan, A., Kettunen, H., Kleinböhl, A., Kuusiniemi, P., Lavrentiev, A., Leino, M., Matos, M., Melarangi, A., Moore, C. J. P., Muikku, M., Münzenberg, G., Nieminen, P., O’Leary, C. D., Rahkila, P., Reshitko, S., Schaffner, H., Schlegel, C., Scholey, C., Taylor, M. J., Uusitalo, J., Van de Vel, K., Van Duppen, P., Weissman, L., Wheldon, C., Wyss, R., Äystö, Juha, editor, Dendooven, Peter, editor, Jokinen, Ari, editor, and Leino, Matti, editor

Published
2003
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77. Decay studies in the A∼225 Po-Fr region from the DESPEC campaign at GSI in 2021

Author

Polettini, M., Pellumaj, J., Benzoni, G., Zhang, G., Mengoni, D., Perez Vidal, R. M., Genna, D., Bracco, A., Aggez, G., Al Aqueel, M., Alayed, B., Albers, H. M., Algora, A., Alhomaidhi, S., Appleton, C., Arici, T., Armstrong, M., Arnswald, K., Balogh, M., Banerjee, A., Blazhev, A., Bottoni, S., Boutachkov, P., Bruce, A., Bruno, C., Camera, F., Cederwall, B., Chishti, M. M. R., Cox, D. M., Crespi, F. C. L., Das, B., Davinson, T., De Angelis, G., Dickel, T., Doncel, Maria, Donthi, R., Ertoprak, A., Escudeiro, R., Esmaylzadeh, A., Fraile, L. M., Gaffney, L., Gamba, E. R., Gerl, J., Gottardo, A., Ha, J., Haettner, E., Hall, O., Heggen, H., Hrabar, Y., Hubbard, N., Jazrawi, S., John, P. R., Jolie, J., Jones, C., Joss, D., Judson, D., Kahl, D., Karayonchev, V., Kazantseva, E., Kern, R., Knafla, L., Kojouharov, I., Korgul, A., Korten, W., Koseoglou, P., Kosir, G., Kostyleva, D., Kurtukian-Nieto, T., Kurz, N., Kuzminchuk, N., Labiche, M., Lenzi, S., Leoni, S., Lozeva, R., Mertzimekis, T. J., Mikolajczuk, M., Million, B., Mistry, A. K., Morales, A., Mukha, I., Murias, J. R., Napoli, D., NaraSingh, B. S., O'Donnell, D., Orrigo, S. E. A., Page, R., Pelonis, S., Petrovic, J., Pietralla, N., Pietri, S., Pigliapoco, S., Podolyak, Zs., Porzio, C., Quintana Arnes, B., Recchia, F., Regan, P. H., Reiter, P., Rezynkina, K., Roy, P., Rudigier, M., Ruotsalainen, P., Sahin, E., Sarmiento, L. G., Satrazani, M.-M., Schaffner, H., Scheidenberger, C., Sexton, L., Sharma, A., Smallcombe, J., Sood, A., Vasileiou, P., Vesic, J., Vilhena, J., Waring, L., Weick, H., Werner, V., Wiederhold, J., Wieland, O., Wimmer, K., Wollersheim, H. J., Woods, P., Yaneva, A., Zanon, I., Zhao, J., Zidarova, R., Ziliani, S., Zimba, G., Zyriliou, A., Polettini, M., Pellumaj, J., Benzoni, G., Zhang, G., Mengoni, D., Perez Vidal, R. M., Genna, D., Bracco, A., Aggez, G., Al Aqueel, M., Alayed, B., Albers, H. M., Algora, A., Alhomaidhi, S., Appleton, C., Arici, T., Armstrong, M., Arnswald, K., Balogh, M., Banerjee, A., Blazhev, A., Bottoni, S., Boutachkov, P., Bruce, A., Bruno, C., Camera, F., Cederwall, B., Chishti, M. M. R., Cox, D. M., Crespi, F. C. L., Das, B., Davinson, T., De Angelis, G., Dickel, T., Doncel, Maria, Donthi, R., Ertoprak, A., Escudeiro, R., Esmaylzadeh, A., Fraile, L. M., Gaffney, L., Gamba, E. R., Gerl, J., Gottardo, A., Ha, J., Haettner, E., Hall, O., Heggen, H., Hrabar, Y., Hubbard, N., Jazrawi, S., John, P. R., Jolie, J., Jones, C., Joss, D., Judson, D., Kahl, D., Karayonchev, V., Kazantseva, E., Kern, R., Knafla, L., Kojouharov, I., Korgul, A., Korten, W., Koseoglou, P., Kosir, G., Kostyleva, D., Kurtukian-Nieto, T., Kurz, N., Kuzminchuk, N., Labiche, M., Lenzi, S., Leoni, S., Lozeva, R., Mertzimekis, T. J., Mikolajczuk, M., Million, B., Mistry, A. K., Morales, A., Mukha, I., Murias, J. R., Napoli, D., NaraSingh, B. S., O'Donnell, D., Orrigo, S. E. A., Page, R., Pelonis, S., Petrovic, J., Pietralla, N., Pietri, S., Pigliapoco, S., Podolyak, Zs., Porzio, C., Quintana Arnes, B., Recchia, F., Regan, P. H., Reiter, P., Rezynkina, K., Roy, P., Rudigier, M., Ruotsalainen, P., Sahin, E., Sarmiento, L. G., Satrazani, M.-M., Schaffner, H., Scheidenberger, C., Sexton, L., Sharma, A., Smallcombe, J., Sood, A., Vasileiou, P., Vesic, J., Vilhena, J., Waring, L., Weick, H., Werner, V., Wiederhold, J., Wieland, O., Wimmer, K., Wollersheim, H. J., Woods, P., Yaneva, A., Zanon, I., Zhao, J., Zidarova, R., Ziliani, S., Zimba, G., and Zyriliou, A.

Abstract

The HISPEC-DESPEC collaboration aims at investigating the structure of exotic nuclei formed in fragmentation reactions with decay spectroscopy measurements, as part of the FAIR Phase-0 campaign at GSI. This paper reports on first results of an experiment performed in spring 2021, with a focus on beta-decaystudies in the Po-Fr nuclei in the 220 < A <230 island of octupole deformation exploiting the DESPEC setup. Ion-beta correlations and fast-timing techniques are being employed, giving an insight into this difficult-to-reach region.

Published
2022
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78. Decay studies in the A similar to 225 Po-Fr region from the DESPEC campaign at GSI in 2021

Author

Polettini, M., Pellumaj, J., Benzoni, G., Zhang, G., Mengoni, D., Vidal, R. M. Perez, Genna, D., Bracco, A., Aggez, G., Al Aqueel, M., Alayed, B., Albers, H. M., Algora, A., Alhomaidhi, S., Appleton, C., Arici, T., Armstrong, M., Arnswald, K., Balogh, M., Banerjee, A., Blazhev, A., Bottoni, S., Boutachkov, P., Bruce, A., Bruno, C., Camera, F., Cederwall, B., Chishti, M. M. R., Cox, D. M., Crespi, F. C. L., Das, B., Davinson, T., De Angelis, G., Dickel, T., Doncel, M., Donthi, R., Ertoprak, A., Escudeiro, R., Esmaylzadeh, A., Fraile, L. M., Gaffney, L., Gamba, E. R., Gerl, J., Gottardo, A., Ha, J., Haettner, E., Hall, O., Heggen, H., Hrabar, Y., Hubbard, N., Jazrawi, S., John, P. R., Jolie, J., Jones, C., Joss, D., Judson, D., Kahl, D., Karayonchev, V, Kazantseva, E., Kern, R., Knafla, L., Kojouharov, I, Korgul, A., Korten, W., Koseoglou, P., Kosir, G., Kostyleva, D., Kurtukian-Nieto, T., Kurz, N., Kuzminchuk, N., Labiche, M., Lenzi, S., Leoni, S., Lozeva, R., Mertzimekis, T. J., Mikolajczuk, M., Million, B., Mistry, A. K., Morales, A., Mukha, I, Murias, J. R., Napoli, D., NaraSingh, B. S., O'Donnell, D., Orrigo, S. E. A., Page, R., Pelonis, S., Petrovic, J., Pietralla, N., Pietri, S., Pigliapoco, S., Podolyak, Zs, Porzio, C., Quintana Arnes, B., Recchia, F., Regan, P. H., Reiter, P., Rezynkina, K., Roy, P., Rudigier, M., Ruotsalainen, P., Sahin, E., Sarmiento, L. G., Satrazani, M-M, Schaffner, H., Scheidenberger, C., Sexton, L., Sharma, A., Smallcombe, J., Sood, A., Vasileiou, P., Vesic, J., Vilhena, J., Waring, L., Weick, H., Werner, V, Wiederhold, J., Wieland, O., Wimmer, K., Wollersheim, H. J., Woods, P., Yaneva, A., Zanon, I, Zhao, J., Zidarova, R., Ziliani, S., Zimba, G., Zyriliou, A., Polettini, M., Pellumaj, J., Benzoni, G., Zhang, G., Mengoni, D., Vidal, R. M. Perez, Genna, D., Bracco, A., Aggez, G., Al Aqueel, M., Alayed, B., Albers, H. M., Algora, A., Alhomaidhi, S., Appleton, C., Arici, T., Armstrong, M., Arnswald, K., Balogh, M., Banerjee, A., Blazhev, A., Bottoni, S., Boutachkov, P., Bruce, A., Bruno, C., Camera, F., Cederwall, B., Chishti, M. M. R., Cox, D. M., Crespi, F. C. L., Das, B., Davinson, T., De Angelis, G., Dickel, T., Doncel, M., Donthi, R., Ertoprak, A., Escudeiro, R., Esmaylzadeh, A., Fraile, L. M., Gaffney, L., Gamba, E. R., Gerl, J., Gottardo, A., Ha, J., Haettner, E., Hall, O., Heggen, H., Hrabar, Y., Hubbard, N., Jazrawi, S., John, P. R., Jolie, J., Jones, C., Joss, D., Judson, D., Kahl, D., Karayonchev, V, Kazantseva, E., Kern, R., Knafla, L., Kojouharov, I, Korgul, A., Korten, W., Koseoglou, P., Kosir, G., Kostyleva, D., Kurtukian-Nieto, T., Kurz, N., Kuzminchuk, N., Labiche, M., Lenzi, S., Leoni, S., Lozeva, R., Mertzimekis, T. J., Mikolajczuk, M., Million, B., Mistry, A. K., Morales, A., Mukha, I, Murias, J. R., Napoli, D., NaraSingh, B. S., O'Donnell, D., Orrigo, S. E. A., Page, R., Pelonis, S., Petrovic, J., Pietralla, N., Pietri, S., Pigliapoco, S., Podolyak, Zs, Porzio, C., Quintana Arnes, B., Recchia, F., Regan, P. H., Reiter, P., Rezynkina, K., Roy, P., Rudigier, M., Ruotsalainen, P., Sahin, E., Sarmiento, L. G., Satrazani, M-M, Schaffner, H., Scheidenberger, C., Sexton, L., Sharma, A., Smallcombe, J., Sood, A., Vasileiou, P., Vesic, J., Vilhena, J., Waring, L., Weick, H., Werner, V, Wiederhold, J., Wieland, O., Wimmer, K., Wollersheim, H. J., Woods, P., Yaneva, A., Zanon, I, Zhao, J., Zidarova, R., Ziliani, S., Zimba, G., and Zyriliou, A.

Abstract

The HISPEC-DESPEC collaboration aims at investigating the struc-ture of exotic nuclei formed in fragmentation reactions with decay spectroscopymeasurements, as part of the FAIR Phase-0 campaign at GSI. This paper reportson first results of an experiment performed in spring 2021, with a focus on beta-decaystudies in the Po-Fr nuclei in the 220 < A <230 island of octupole deformationexploiting the DESPEC setup. Ion-beta correlations and fast-timing techniques arebeing employed, giving an insight into this difficult-to-reach region.

Published
2022

79. High-spin states in Po-212 above the alpha-decaying (18(+)) isomer

Author

Zago, L., Gottardo, A., Valiente-Dobon, J. J., Benzoni, G., Gadea, A., Gorska, M., Lunardi, S., Podolyak, Zs., Regan, P. H., Rudolph, D., Algora, A., de Angelis, G., Bazzacco, D., Benlliure, J., Boutachkov, R., Bracco, A., Bruce, A. M., Camera, F., Casarejos, E., Cortes, M. L., Crespi, F. C. L., Corsi, A., Domingo-Pardo, C., Doncel, M., Engert, T., Geissel, H., Gerl, J., Goasduff, A., Goel, N., Grebosz, J., Gregor, E., Habermann, T., Klupp, S., Kojouharov, I., Kurz, N., Lenzi, S. M., Leoni, S., Mandal, S., Menegazzo, R., Mengoni, D., Million, B., Morales, A. I., Napoli, D. R., Naqvi, F., Nociforo, C., Pfiitzner, M., Pietri, S., Prochazka, A., Recchia, F., Sahin, E., Schaffner, H., Sharma, A., Sitar, B., Siwal, D., Strmen, R., Szarka, I., Ur, C. A., Walker, P. M., Weick, H., Wieland, O., Wollersheime, H. -J., Zago, L., Gottardo, A., Valiente-Dobon, J. J., Benzoni, G., Gadea, A., Gorska, M., Lunardi, S., Podolyak, Zs., Regan, P. H., Rudolph, D., Algora, A., de Angelis, G., Bazzacco, D., Benlliure, J., Boutachkov, R., Bracco, A., Bruce, A. M., Camera, F., Casarejos, E., Cortes, M. L., Crespi, F. C. L., Corsi, A., Domingo-Pardo, C., Doncel, M., Engert, T., Geissel, H., Gerl, J., Goasduff, A., Goel, N., Grebosz, J., Gregor, E., Habermann, T., Klupp, S., Kojouharov, I., Kurz, N., Lenzi, S. M., Leoni, S., Mandal, S., Menegazzo, R., Mengoni, D., Million, B., Morales, A. I., Napoli, D. R., Naqvi, F., Nociforo, C., Pfiitzner, M., Pietri, S., Prochazka, A., Recchia, F., Sahin, E., Schaffner, H., Sharma, A., Sitar, B., Siwal, D., Strmen, R., Szarka, I., Ur, C. A., Walker, P. M., Weick, H., Wieland, O., and Wollersheime, H. -J.

Abstract

The nucleus Po-212 has been produced through the fragmentation of a U-238 primary beam at 1GeV/nucleon at GSI, separated with the FRagment Separator, FRS, and studied via isomer gamma-decay spectroscopy with the RISING setup. Two delayed previously unknown gamma rays have been observed. One has been attributed to the E3 decay of a 21(-) isomeric state feeding the alpha-emitting 45-s (18(+)) high-spin isomer. The other gamma-ray line has been assigned to the decay of a higher-lying 23(+) metastable state. These are the first observations of high-spin states above the Po-212 (18(+)) isomer, by virtue of the selectivity obtained via ion-by-ion identification of U-238 fragmentation products. Comparison with shell-model calculations points to shortfalls in the nuclear interactions involving high- jproton and neutron orbitals, to which the region around Z similar to 100 is sensitive. (C) 2022 The Authors. Published by Elsevier B.V.

Published
2022

80. Nature of seniority symmetry breaking in the semimagic nucleus Ru-94

Author

Das, B., Cederwall, B., Qi, C., Gorska, M., Regan, P. H., Aktas, O., Albers, H. M., Banerjee, A., Chishti, M. M. R., Gerl, J., Hubbard, N., Jazrawi, S., Jolie, J., Mistry, A. K., Polettini, M., Yaneva, A., Alhomaidhi, S., Zhao, J., Arici, T., Bagchi, S., Benzoni, G., Boutachkov, P., Davinson, T., Dickel, T., Haettner, E., Hall, O., Hornung, Ch, Hucka, J. P., John, P. R., Kojouharov, I, Knoebel, R., Kostyleva, D., Kuzminchuk, N., Mukha, I, Plass, W. R., Singh, B. S. Nara, Vasiljevic, J., Pietri, S., Podolyak, Zs, Rudigier, M., Roesch, H., Sahin, E., Schaffner, H., Scheidenberger, C., Schirru, F., Sharma, A., Shearman, R., Tanaka, Y., Vesic, J., Weick, H., Wollersheim, H. J., Ahmed, U., Algora, A., Appleton, C., Benito, J., Blazhev, A., Bracco, A., Bruce, A. M., Brunet, M., Canavan, R., Esmaylzadeh, A., Fraile, L. M., Haefner, G., Heggen, H., Kahl, D., Karayonchev, V, Kern, R., Korgu, A., Kosir, G., Kurz, N., Lozeva, R., Mikolajczuk, M., Napiralla, P., Page, R., Petrache, C. M., Pietralla, N., Regis, J-M, Ruotsalainen, P., Sexton, L., Sanchez-Temble, V, Si, M., Vilhena, J., Werner, V, Wiederhold, J., Witt, W., Woods, P. J., Zimba, G., Das, B., Cederwall, B., Qi, C., Gorska, M., Regan, P. H., Aktas, O., Albers, H. M., Banerjee, A., Chishti, M. M. R., Gerl, J., Hubbard, N., Jazrawi, S., Jolie, J., Mistry, A. K., Polettini, M., Yaneva, A., Alhomaidhi, S., Zhao, J., Arici, T., Bagchi, S., Benzoni, G., Boutachkov, P., Davinson, T., Dickel, T., Haettner, E., Hall, O., Hornung, Ch, Hucka, J. P., John, P. R., Kojouharov, I, Knoebel, R., Kostyleva, D., Kuzminchuk, N., Mukha, I, Plass, W. R., Singh, B. S. Nara, Vasiljevic, J., Pietri, S., Podolyak, Zs, Rudigier, M., Roesch, H., Sahin, E., Schaffner, H., Scheidenberger, C., Schirru, F., Sharma, A., Shearman, R., Tanaka, Y., Vesic, J., Weick, H., Wollersheim, H. J., Ahmed, U., Algora, A., Appleton, C., Benito, J., Blazhev, A., Bracco, A., Bruce, A. M., Brunet, M., Canavan, R., Esmaylzadeh, A., Fraile, L. M., Haefner, G., Heggen, H., Kahl, D., Karayonchev, V, Kern, R., Korgu, A., Kosir, G., Kurz, N., Lozeva, R., Mikolajczuk, M., Napiralla, P., Page, R., Petrache, C. M., Pietralla, N., Regis, J-M, Ruotsalainen, P., Sexton, L., Sanchez-Temble, V, Si, M., Vilhena, J., Werner, V, Wiederhold, J., Witt, W., Woods, P. J., and Zimba, G.

Abstract

Direct lifetime measurements via gamma -gamma coincidences using a fast timing detector array consisting of LaBr3(Ce) scintillators has been applied to determine the lifetime of low-lying states in the semimagic (N = 50) nucleus Ru-94. The experiment was carried out as the first in a series of FAIR-0 experiments with the DESPEC experimental setup at the Facility for Antiproton and Ion Research (FAIR). Excited states in Ru-94 were populated primarily via the beta-delayed proton emission of Pd-95 nuclei, produced in the projectile fragmentation of an 850 MeV/nucleon Xe-124 beam impinging on a 4 g/cm(2) Be-9 target. While the deduced E2 strength for the 2(+) -> 0(+) transition in the yrast cascade follows the expected behavior for conserved seniority symmetry, the intermediate 4(+) -> 2(+) transition exhibits a drastic enhancement of transition strength in comparison with pure-seniority model predictions as well as standard shell model predictions in the f pg proton hole space with respect to doubly magic Sn-100. The anomalous behavior is ascribed to a subtle interference between the wave function of the lowest seniority v = 2, I-pi = 4(+) state and that of a close-lying v = 4 state that exhibits partial dynamic symmetry. In addition, the observed strongly prohibitive 6(+) -> 4(+) transition can be attributed to the same mechanism but with a destructive interference. It is noted that such effects may provide stringent tests of the nucleon-nucleon interactions employed in state-of-the-art theoretical model calculations.

Published
2022

81. Access to Gamma-ray Spectroscopy of Neutron-Rich sdfp Shell Nuclei

Author

Fornal, B., Broda, R., Królas, W., Pawlat, T., Wrzesiński, J., Bazzacco, D., Lunardi, S., Rossi-Alvarez, C., Viesti, G., de Angelis, G., Cinausero, M., Napoli, D., Helariutta, K., Jones, P. M., Julin, R., Juutinen, S., Savelius, A., Butler, P. A., Cocks, J. F. C., Gerl, J., Smit, F. D., editor, Lindsay, R., editor, and Förtsch, S. V., editor

Published
1999
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82. Selected spectroscopic results on element 115 decay chains

Author

Rudolph, D., Forsberg, U., Golubev, P., Sarmiento, L. G., Yakushev, A., Andersson, L.-L., Di Nitto, A., Düllmann, Ch. E., Gates, J. M., Gregorich, K. E., Gross, C. J., Herzberg, R.-D., Heßberger, F. P., Khuyagbaatar, J., Kratz, J. V., Rykaczewski, K., Schädel, M., Åberg, S., Ackermann, D., Block, M., Brand, H., Carlsson, B. G., Cox, D., Derkx, X., Eberhardt, K., Even, J., Fahlander, C., Gerl, J., Jäger, E., Kindler, B., Krier, J., Kojouharov, I., Kurz, N., Lommel, B., Mistry, A., Mokry, C., Nitsche, H., Omtvedt, J. P., Papadakis, P., Ragnarsson, I., Runke, J., Schaffner, H., Schausten, B., Thörle-Pospiech, P., Torres, T., Traut, T., Trautmann, N., Türler, A., Ward, A., Ward, D. E., and Wiehl, N.

Published
2015
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83. New results on mass measurements of stored neutron-rich nuclides in the element range from Pt to U with the FRS-ESR facility at [formula omitted]

Author

Chen, L., Plaß, W.R., Geissel, H., Knöbel, R., Kozhuharov, C., Litvinov, Yu.A., Patyk, Z., Scheidenberger, C., Siegień-Iwaniuk, K., Sun, B., Weick, H., Beckert, K., Beller, P., Bosch, F., Boutin, D., Caceres, L., Carroll, J.J., Cullen, D.M., Cullen, I.J., Franzke, B., Gerl, J., Górska, M., Jones, G.A., Kishada, A., Kurcewicz, J., Litvinov, S.A., Liu, Z., Mandal, S., Montes, F., Münzenberg, G., Nolden, F., Ohtsubo, T., Podolyák, Zs., Propri, R., Rigby, S., Saito, N., Saito, T., Shindo, M., Steck, M., Walker, P.M., Williams, S., Winkler, M., Wollersheim, H.-J., and Yamaguchi, T.

Published
2012
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84. Nature of seniority symmetry breaking in the semimagic nucleus Ru94

Author

Das, B., primary, Cederwall, B., additional, Qi, C., additional, Górska, M., additional, Regan, P. H., additional, Aktas, Ö., additional, Albers, H. M., additional, Banerjee, A., additional, Chishti, M. M. R., additional, Gerl, J., additional, Hubbard, N., additional, Jazrawi, S., additional, Jolie, J., additional, Mistry, A. K., additional, Polettini, M., additional, Yaneva, A., additional, Alhomaidhi, S., additional, Zhao, J., additional, Arici, T., additional, Bagchi, S., additional, Benzoni, G., additional, Boutachkov, P., additional, Davinson, T., additional, Dickel, T., additional, Haettner, E., additional, Hall, O., additional, Hornung, Ch., additional, Hucka, J. P., additional, John, P. R., additional, Kojouharov, I., additional, Knöbel, R., additional, Kostyleva, D., additional, Kuzminchuk, N., additional, Mukha, I., additional, Plass, W. R., additional, Nara Singh, B. S., additional, Vasiljević, J., additional, Pietri, S., additional, Podolyák, Zs., additional, Rudigier, M., additional, Rösch, H., additional, Sahin, E., additional, Schaffner, H., additional, Scheidenberger, C., additional, Schirru, F., additional, Sharma, A., additional, Shearman, R., additional, Tanaka, Y., additional, Vesić, J., additional, Weick, H., additional, Wollersheim, H. J., additional, Ahmed, U., additional, Algora, A., additional, Appleton, C., additional, Benito, J., additional, Blazhev, A., additional, Bracco, A., additional, Bruce, A. M., additional, Brunet, M., additional, Canavan, R., additional, Esmaylzadeh, A., additional, Fraile, L. M., additional, Häfner, G., additional, Heggen, H., additional, Kahl, D., additional, Karayonchev, V., additional, Kern, R., additional, Korgul, A., additional, Kosir, G., additional, Kurz, N., additional, Lozeva, R., additional, Mikolajczuk, M., additional, Napiralla, P., additional, Page, R., additional, Petrache, C. M., additional, Pietralla, N., additional, Régis, J.-M., additional, Ruotsalainen, P., additional, Sexton, L., additional, Sanchez-Temble, V., additional, Si, M., additional, Vilhena, J., additional, Werner, V., additional, Wiederhold, J., additional, Witt, W., additional, Woods, P. J., additional, and Zimba, G., additional

Published
2022
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85. The DESPEC setup for GSI and FAIR

Author

Mistry, A.K. Albers, H.M. Arıcı, T. Banerjee, A. Benzoni, G. Cederwall, B. Gerl, J. Górska, M. Hall, O. Hubbard, N. Kojouharov, I. Jolie, J. Martinez, T. Podolyák, Z. Regan, P.H. Tain, J.L. Tarifeno-Saldivia, A. Schaffner, H. Werner, V. Ağgez, G. Agramunt, J. Ahmed, U. Aktas, O. Alcayne, V. Algora, A. Alhomaidhi, S. Amjad, F. Appleton, C. Armstrong, M. Balogh, M. Banerjee, K. Bednarczyk, P. Benito, J. Bhattacharya, C. Black, P. Blazhev, A. Bottoni, S. Boutachkov, P. Bracco, A. Bruce, A.M. Brunet, M. Bruno, C.G. Burrows, I. Calvino, F. Canavan, R.L. Cano-Ott, D. Chishti, M.M.R. Coleman-Smith, P. Cortés, M.L. Cortes, G. Crespi, F. Das, B. Davinson, T. De Blas, A. Dickel, T. Doncel, M. Ertoprak, A. Esmaylzadeh, A. Fornal, B. Fraile, L.M. Galtarossa, F. Gottardo, A. Guadilla, V. Ha, J. Haettner, E. Häfner, G. Heggen, H. Herrmann, P. Hornung, C. Jazrawi, S. John, P.R. Jokinen, A. Jones, C.E. Kahl, D. Karayonchev, V. Kazantseva, E. Kern, R. Knafla, L. Knöbel, R. Koseoglou, P. Kosir, G. Kostyleva, D. Kurz, N. Kuzminchuk, N. Labiche, M. Lawson, J. Lazarus, I. Lenzi, S.M. Leoni, S. Llanos-Expósito, M. Lozeva, R. Maj, A. Meena, J.K. Mendoza, E. Menegazzo, R. Mengoni, D. Mertzimekis, T.J. Mikolajczuk, M. Million, B. Mont-Geli, N. Morales, A.I. Morral, P. Mukha, I. Murias, J.R. Nacher, E. Napiralla, P. Napoli, D.R. Nara-Singh, B.S. O'Donnell, D. Orrigo, S.E.A. Page, R.D. Palit, R. Pallas, M. Pellumaj, J. Pelonis, S. Pentilla, H. Pérez de Rada, A. Pérez-Vidal, R.M. Petrache, C.M. Pietralla, N. Pietri, S. Pigliapoco, S. Plaza, J. Polettini, M. Porzio, C. Pucknell, V.F.E. Recchia, F. Reiter, P. Rezynkina, K. Rinta-Antila, S. Rocco, E. Rösch, H.A. Roy, P. Rubio, B. Rudigier, M. Ruotsalainen, P. Saha, S. Şahin, E. Scheidenberger, C. Seddon, D.A. Sexton, L. Sharma, A. Si, M. Simpson, J. Smith, A. Smith, R. Söderström, P.A. Sood, A. Soylu, A. Tanaka, Y.K. Valiente-Dobón, J.J. Vasileiou, P. Vasiljevic, J. Vesic, J. Villamarin, D. Weick, H. Wiebusch, M. Wiederhold, J. Wieland, O. Wollersheim, H.J. Woods, P.J. Yaneva, A. Zanon, I. Zhang, G. Zhao, J. Zidarova, R. Zimba, G. Zyriliou, A.

Abstract

The DEcay SPECtroscopy (DESPEC) setup for nuclear structure investigations was developed and commissioned at GSI, Germany in preparation for a full campaign of experiments at the FRS and Super-FRS. In this paper, we report on the first employment of the setup in the hybrid configuration with the AIDA implanter coupled to the FATIMA LaBr3(Ce) fast-timing array, and high-purity germanium detectors. Initial results are shown from the first experiments carried out with the setup. An overview of the setup and function is discussed, including technical advancements along the path. © 2022 Elsevier B.V.

Published
2022

86. Decay studies in the A ∼ 225 Po-Fr region from the DESPEC campaign at GSI in 2021

Author

Polettini, M., Pellumaj, J., Benzoni, G., Valiente-Dobon, J. J., Zhang, G., Mengoni, D., Vidal, R. M. P., Genna, D., Bracco, A., Aggez, G., Ahmed, U., Aktas, O., Al Aqueel, M., Alayed, B., Albers, H. M., Algora, A., Alhomaidhi, S., Appleton, C., Arici, T., Armstrong, M., Arnswald, K., Balogh, M., Banerjee, A., Garcia, J. B., Blazhev, A., Bottoni, S., Boutachkov, P., Bruce, A., Bruno, C., Camera, F., Cederwall, B., Chishti, M. M. R., Cortes, M. L., Cox, D. M., Crespi, F. C. L., Das, B., Davinson, T., De Angelis, G., Dickel, T., Doncel, M., Donthi, R., Ertoprak, A., Escudeiro, R., Esmaylzadeh, A., Fraile, L. M., Gaffney, L., Gamba, E. R., Gerl, J., Gorska, M., Gottardo, A., Ha, J., Haettner, E., Hall, O., Heggen, H., Hrabar, Y., Hubbard, N., Jazrawi, S., John, P. R., Jolie, J., Jones, C., Joss, D., Judson, D., Kahl, D., Karayonchev, V., Kazantseva, E., Kern, R., Knafla, L., Kojouharov, I., Korgul, A., Korten, W., Koseoglou, P., Kosir, G., Kostyleva, D., Kurtukian-Nieto, T., Kurz, N., Kuzminchuk, N., Labiche, M., Lenzi, S., Leoni, S., Exposito, M. L., Lozeva, R., Mertzimekis, T. J., Mikolajczuk, M., Million, B., Mistry, A. K., Morales, A., Mukha, I., Murias, J. R., Napoli, D., Singh, B. S. N., O'Donnell, D., Orrigo, S. E. A., Page, R., Pelonis, S., Petrovic, J., Pietralla, N., Pietri, S., Pigliapoco, S., Podolyak, Zs., Porzio, C., Arnes, B. Q., Recchia, F., Regan, P. H., Regis, J. -M., Reiter, P., Rezynkina, K., Roy, P., Rudigier, M., Ruotsalainen, P., Sahin, E., Sarmiento, L. G., Satrazani, M. -M., Schaffner, H., Scheidenberger, C., Sexton, L., Sharma, A., Smallcombe, J., Soderstrom, P. -A., Sood, A., Vasileiou, P., Vesic, J., Vilhena, J., Waring, L., Weick, H., Werner, V., Wiederhold, J., Wieland, O., Wimmer, K., Wollersheim, H. J., Woods, P., Yaneva, A., Zanon, I., Zhao, J., Zidarova, R., Ziliani, S., Zimba, G., and Zyriliou, A.

Published
2022

87. Nature of seniority symmetry breaking in the semimagic nucleus $^{94}Ru$

Author

Das, B., Cederwall, B., Qi, C., Górska, M., Regan, P. H., Aktas, Ö., Albers, H. M., Banerjee, A., Chishti, M. M. R., Gerl, J., Hubbard, N., Jazrawi, S., Jolie, J., Mistry, A. K., Polettini, M., Yaneva, A., Alhomaidhi, S., Zhao, Jianwei, Arici, T., Bagchi, S., Benzoni, G., Boutachkov, P., Davinson, T., Dickel, Timo, Haettner, E., Hall, O., Hornung, Ch., Hucka, J. P., John, P. R., Kojouharov, I., Knöbel, R., Kostyleva, D., Kuzminchuk, N., Mukha, I., Plass, W. R., Nara Singh, B. S., Vasiljević, J., Pietri, S., Podolyák, Zs., Rudigier, M., Rösch, H., Sahin, E., Schaffner, H., Scheidenberger, C., Schirru, Fabio, Sharma, A., Shearman, R., Tanaka, Y., Vesić, J., Weick, H., Wollersheim, H. J., Ahmed, U., Algora, A., Appleton, C., Benito, J., Blazhev, A., Bracco, A., Bruce, A. M., Brunet, M., Canavan, R., Esmaylzadeh, A., Fraile, L. M., Häfner, G., Heggen, H., Kahl, D., Karayonchev, V., Kern, R., Korgul, A., Kosir, G., Kurz, N., Lozeva, R., Mikolajczuk, M., Napiralla, P., Page, R., Petrache, C. M., Pietralla, N., Régis, J.-M., Ruotsalainen, P., Sexton, L., Sanchez-Temble, V., Si, M., Vilhena, J., Werner, V., Wiederhold, J., Witt, W., Woods, P. J., and Zimba, G.

Subjects
Nuclear Theory, ddc:530, Nuclear Experiment, ydinfysiikka
Abstract

Physical review / C 105(3), L031304 (2022). doi:10.1103/PhysRevC.105.L031304, Published by APS, Woodbury, NY

Published
2022
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88. High-spin states in Po-212 above the alpha-decaying (18+) isomer

Author

Zago, L, Gottardo, A, Valiente-Dobon, Jj, Benzoni, G, Gadea, A, Gorska, M, Lunardi, S, Podolyak, Z, Regan, Ph, Rudolph, D, Algora, A, de Angelis, G, Bazzacco, D, Benlliure, J, Boutachkov, R, Bracco, A, Bruce, Am, Camera, F, Casarejos, E, Cortes, Ml, Crespi, Fcl, Corsi, A, Domingo-Pardo, C, Doncel, M, Engert, T, Geissel, H, Gerl, J, Goasduff, A, Goel, N, Grebosz, J, Gregor, E, Habermann, T, Klupp, S, Kojouharov, I, Kurz, N, Lenzi, Sm, Leoni, S, Mandal, S, Menegazzo, R, Mengoni, D, Million, B, Morales, Ai, Napoli, Dr, Naqvi, F, Nociforo, C, Pfiitzner, M, Pietri, S, Prochazka, A, Recchia, F, Sahin, E, Schaffner, H, Sharma, A, Sitar, B, Siwal, D, Strmen, R, Szarka, I, Ca, Ur, Walker, Pm, Weick, H, Wieland, O, and Wollersheime, Hj

Subjects
High-spin spectroscopy, gamma spectroscopy, Isomer spectroscopy
Published
2022

89. In-beam gamma-ray spectroscopy of 254No

Author

Eeckhaudt, S., Amzal, N., Bastin, J. E., Bouchez, E., Butler, P. A., Chatillon, A., Eskola, K., Gerl, J., Grahn, T., Gärgen, A., Greenlees, P. T., Herzberg, R. -D., Hessberger, F. P., Härstel, A., Ikin, P. J. C., Jones, G. D., Jones, P., Julin, R., Juutinen, S., Kettunen, H., Khoo, T. L., Korten, W., Kuusiniemi, P., Le Coz, Y., Leino, M., Leppänen, A. -P., Nieminen, P., Pakarinen, J., Perkowski, J., Pritchard, A., Reiter, P., Rahkila, P., Scholey, C., Theisen, Ch., Uusitalo, J., Van de Vel, K., Wilson, J., Wollersheim, H. J., Gross, Carl J., editor, Nazarewicz, Witold, editor, and Rykaczewski, Krzysztof P., editor

Published
2005
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92. Decay studies in the A∼225 Po-Fr region from the DESPEC campaign at GSI in 2021

Author

Polettini, M., Pellumaj, J., Benzoni, G., Valiente-Dobón, J.J., Zhang, G., Mengoni, D., Vidal, R.M.Perez, Genna, D., Bracco, A., Aggez, G., Ahmed, U., Aktas, Ö., Aqueel, M.Al, Alayed, B., Albers, H.M., Algora, A., Alhomaidhi, S., Appleton, C., Arici, T., Armstrong, M., Arnswald, K., Balogh, M., Banerjee, A., Garcıa, J.Benito, Blazhev, A., Bottoni, S., Boutachkov, P., Bruce, A., Bruno, C., Camera, F., Cederwall, B., Chishti, M.M.R., Cortés, M.L., Cox, D.M., Crespi, F.C.L., Das, B., Davinson, T., Angelis, G.De, Dickel, T., Doncel, M., Donthi, R., Ertoprak, A., Escudeiro, R., Esmaylzadeh, A., Fraile, L.M., Gaffney, L., Gamba, E.R., Gerl, J., Górska, M., Gottardo, A., Ha, J., Haettner, E., Hall, O., Heggen, H., Hrabar, Y., Hubbard, N., Jazrawi, S., John, P.R., Jolie, J., Jones, C., Joss, D., Judson, D., Kahl, D., Karayonchev, V., Kazantseva, E., Kern, R., Knafla, L., Kojouharov, I., Korgul, A., Korten, W., Koseoglou, P., Kosir, G., Kostyleva, D., Kurtukian-Nieto, T., Kurz, N., Kuzminchuk, N., Labiche, M., Lenzi, S., Leoni, S., Expósito, M.Llanos, Lozeva, R., Mertzimekis, T.J., Mikolajczuk, M., Million, B., Mistry, A.K., Morales, A., Mukha, I., Murias, J.R., Napoli, D., Singh, B.S.Nara, O'Donnell, D., Orrigo, S.E.A., Page, R., Pelonis, S., Petrovic, J., Pietralla, N., Pietri, S., Pigliapoco, S., Podolyak, Zs., Porzio, C., Arnes, B.Quintana, Recchia, F., Regan, P.H., Régis, J.M., Reiter, P., Rezynkina, K., Roy, P., Rudigier, M., Ruotsalainen, P., Sahin, E., Sarmiento, L.G., Satrazani, M.M., Schaffner, H., Scheidenberger, C., Sexton, L., Sharma, A., Smallcombe, J., Söderström, P.A., Sood, A., Vasileiou, P., Vesic, J., Vilhena, J., Waring, L., Weick, H., Werner, V., Wiederhold, J., Wieland, O., Wimmer, K., Wollersheim, H.J., Woods, P., Yaneva, A., Zanon, I., Zhao, J., Zidarova, R., Ziliani, S., Zimba, G., Zyriliou, A., Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Centre d'Etudes Nucléaires de Bordeaux Gradignan (CENBG), Université Sciences et Technologies - Bordeaux 1 (UB)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique des 2 Infinis Irène Joliot-Curie (IJCLab), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Université Claude Bernard Lyon 1 (UCBL), and Université de Lyon

Subjects
[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]
Abstract

International audience; The HISPEC-DESPEC collaboration aims at investigating the structure of exotic nuclei formed in fragmentation reactions with decay spectroscopymeasurements, as part of the FAIR Phase-0 campaign at GSI. This paper reportson first results of an experiment performed in spring 2021, with a focus on β-decaystudies in the Po-Fr nuclei in the 220

Published
2021
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93. The (6+) isomer in 102Sn revisited: Neutron and proton effective charges close to the double shell closure

Author

Grawe, H., Straub, K., Faestermann, T., Górska, M., Hinke, C., Krücken, R., Nowacki, F., Böhmer, M., Boutachkov, P., Geissel, H., Gernhäuser, R., Gottardo, A., Grȩbosz, J., Kurz, N., Liu, Z., Maier, L., Pietri, S., Podolyák, Zs., Steiger, K., Weick, H., Wollersheim, H.J., Woods, P.J., Al-Dahan, N., Alkhomashi, N., Ataç, A., Blazhev, A., Braun, N., Čeliković, I., Davinson, T., Dillmann, I., Domingo-Pardo, C., Doornenbal, P., Farrelly, G., Farinon, F., de France, G., Gerl, J., Goel, N., Habermann, T., Hoischen, R., Janik, R., Karny, M., Kaşkaş, A., Kojouharov, I., Kröll, Th., Lewitowicz, M., Litvinov, Yu.A., Myalski, S., Nebel, F., Nishimura, S., Nociforo, C., Nyberg, J., Parikh, A., Procházka, A., Regan, P.H., Rigollet, C., Schaffner, H., Scheidenberger, C., Schwertel, S., Söderström, P.-A., Steer, S., Stolz, A., and Strmeň, P.

Published
2021
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94. TASISpec—A highly efficient multi-coincidence spectrometer for nuclear structure investigations of the heaviest nuclei

Author

Andersson, L.-L., Rudolph, D., Golubev, P., Herzberg, R.-D., Hoischen, R., Merchán, E., Ackermann, D., Düllmann, Ch.E., Eberhardt, K., Even, J., Gerl, J., Heßberger, F.P., Jäger, E., Khuyagbaatar, J., Kojouharov, I., Kratz, J.V., Krier, J., Kurz, N., Prokopowicz, W., Schädel, M., Schaffner, H., Schausten, B., Schimpf, E., Semchenkov, A., Türler, A., Wollersheim, H.-J., Yakushev, A., Thörle-Pospiech, P., Hartmann, W., Hübner, A., Lommel, B., Kindler, B., and Steiner, J.

Published
2010
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95. Lifetime effects for high-resolution gamma-ray spectroscopy at relativistic energies and their implications for the RISING spectrometer

Author

Doornenbal, P., Reiter, P., Grawe, H., Saito, T., Al-Khatib, A., Banu, A., Beck, T., Becker, F., Bednarczyk, P., Benzoni, G., Bracco, A., Bürger, A., Caceres, L., Camera, F., Chmel, S., Crespi, F.C.L., Geissel, H., Gerl, J., Górska, M., Gre¸bosz, J., Hübel, H., Kavatsyuk, M., Kavatsyuk, O., Kmiecik, M., Kojouharov, I., Kurz, N., Lozeva, R., Maj, A., Mandal, S., Meczynski, W., Million, B., Podolyák, Zs., Richard, A., Saito, N., Schaffner, H., Seidlitz, M., Striepling, T., Walker, J., Warr, N., Weick, H., Wieland, O., Winkler, M., and Wollersheim, H.J.

Published
2010
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97. Manifestation of the Berry phase in the atomic nucleus Pb

Author

Valiente-Dobón, J.J., Gottardo, A., Benzoni, G., Gadea, A., Lunardi, S., Algora, A., de Angelis, G., Bazzacco, D., Benlliure, J., Boutachkov, P., Bracco, A., Bruce, A.M., Camera, F., Casarejos, E., Cortés, M.L., Crespi, F.C.L., Corsi, A., Domingo-Pardo, C., Doncel, M., Engert, T., Geissel, H., Gerl, J., Goasduff, A., Goel, N., Górska, M., Grebosz, J., Gregor, E., Habermann, T., Klupp, S., Kojouharov, I., Kurz, N., Lenzi, S.M., Leoni, S., Mandal, S., Menegazzo, R., Mengoni, D., Million, B., Morales, A.I., Napoli, D.R., Naqvi, F., Nociforo, C., Pfützner, M., Pietri, S., Podolyák, Zs., Prochazka, A., Recchia, F., Regan, P.H., Rudolph, D., Sahin, E., Schaffner, H., Sharma, A., Sitar, B., Siwal, D., Strmen, P., Szarka, I., Ur, C.A., Walker, P.M., Weick, H., Wieland, O., Wollersheim, H.J., and Van Isacker, P.

Abstract

The neutron-rich $^{213}$Pb isotope was produced in the fragmentation of a primary 1 GeV A $^{238}$U beam, separated in FRS in mass and atomic number, and then implanted for isomer decay γ-ray spectroscopy with the RISING setup at GSI. A newly observed isomer and its measured decay properties indicate that states in $^{213}$Pb are characterized by the seniority quantum number that counts the nucleons not in pairs coupled to angular momentum J=0. The conservation of seniority is a consequence of a geometric phase associated with particle-hole conjugation, which becomes observable in semi-magic nuclei where nucleons half-fill the valence shell. The γ-ray spectroscopic observables in $^{213}$Pb are thus found to be driven by two mechanisms, particle-hole conjugation and seniority conservation, which are intertwined through a Berry phase.

Published
2021

98. The (6 ) Isomer in Sn revisited: Neutron and proton effective charges close to the double shell closure

Author

Grawe, H., Straub, K., Faestermann, T., Górska, M., Hinke, C., Krücken, R., Nowacki, F., Böhmer, M., Boutachkov, P., Geissel, H., Gernhäuser, R., Gottardo, A., Grȩbosz, J., Kurz, N., Liu, Z., Maier, L., Pietri, S., Podolyák, Zs., Steiger, K., Weick, H., Wollersheim, H.J., Woods, P.J., Al-Dahan, N., Alkhomashi, N., Ataç, A., Blazhev, A., Braun, N., Čeliković, I., Davinson, T., Dillmann, I., Domingo-Pardo, C., Doornenbal, P., Farrelly, G., Farinon, F., de France, G., Gerl, J., Goel, N., Habermann, T., Hoischen, R., Janik, R., Karny, M., Kaşkaş, A., Kojouharov, I., Kröll, Th., Lewitowicz, M., Litvinov, Yu.A., Myalski, S., Nebel, F., Nishimura, S., Nociforo, C., Nyberg, J., Parikh, A., Procházka, A., Regan, P.H., Rigollet, C., Schaffner, H., Scheidenberger, C., Schwertel, S., Söderström, P.A., Steer, S., Stolz, A., and Strmeň, P.

Abstract

In a high-energy fragmentation experiment at GSI an I=π(6+) isomer and its γ-decay are identified in $^{102}$Sn, the two-neutron neighbour of the doubly-magic $^{100}$Sn. Its half-life is measured to be T=1/2367(11) ns. The possible existence of further isomers is discussed in the framework of large-scale shell model (LSSM) calculations including up to five particle-hole excitations of the $^{100}$Sn core. From the precise B(E2; 6+→4+) strength and the recently remeasured value for B(E2; 8+→6+) in the two-proton hole neighbour $^{98}$Cd effective E2 polarization charges for protons and neutrons were inferred including LSSM corrections within the full N=4 0ħω space. The results are discussed in comparison to predicted and empirically determined effective operators.

Published
2021

99. Spectroscopy of Cd 98 by two-nucleon removal from in 100

Author

Jin, S. Y., Wang, S. T., Lee, J., Corsi, A., Wimmer, K., Browne, F., Chen, S., Cortés, M.L., Doornenbal, P., Koiwai, T., Yuan, C. X., Algora, Alejandro, Brugnara, D., Cederkäll, J., Gerl, J., Górska, M., Häfner, G., Kokubun, K., Koseoglou, P., Kubono, S., Li, P., Liang, P., Liu, J., Liu, Z., Lokotko, T., Park, J., Sakurai, H., Sarmiento, L. G., Sun, Z. Y., Taniuchi, R., Xian, W., Zanon, I., RIKEN Nishina Center for Accelerator-Based Science, National Natural Science Foundation of China, Research Grants Council (Hong Kong), Knut and Alice Wallenberg Foundation, Japan Society for the Promotion of Science, Agencia Estatal de Investigación (España), and Federal Ministry of Education and Research (Germany)

Abstract

6 pags., 5 figs., Low-lying states of Cd98 have been populated by the two-nucleon removal reaction (In100,Cd98+γ) and studied using in-beam γ-ray spectroscopy at the Radioactive Isotope Beam Factory at RIKEN. Two new γ transitions were identified and assigned as decays from a previously unknown state. This state is suggested to be based on a π1g9/2-12p1/2-1 configuration with Jπ=5-. The present observation extends the systematics of the excitation energies of the first 5- state in N=50 isotones toward Sn100. The determined energy of the 5- state in Cd98 continues a smooth trend along the N=50 isotones. The systematics are compared with shell-model calculations in different model spaces. Good agreement is achieved when considering a model space consisting of the π(1f5/2, 2p3/2, 2p1/2, 1g9/2) orbitals. The calculations with a smaller model space omitting the orbitals below the Z=38 subshell could not reproduce the experimental energy difference between the ground and first 5- states in N=50 isotones, because proton excitations across Z=38 subshell yield a large amount of correlation energy that lowers the ground states., The authors thank the RIKEN Nishina Center accelerator staff for providing a stable and high-intensity 124Xe beam and the BigRIPS team for the smooth operation of the secondary beam. This work was supported by the National Natural Science Foundation of China (Grants No. U1732134, No. 11775316, and No. 11961141004). J.L. acknowledges the support from Research Grants Council (RGC) of Hong Kong with grant of General Research Fund (GRF-17307716). G.H. acknowledges the support from the IDEX-API grant. L.G.S. is indebted to a grant from the Knut and Alice Wallenberg Foundation (KAW 2015.0021). A.A. acknowledges the support from the JSPS Invitational Fellowship contract L19555, and the Spanish PID2019-104714GB-C21 grant. F.B. acknowledges the support by the RIKEN Special Postdoctoral Researcher Program. The IN2P3/LIA2019 RIKEN grant of R. Lozeva is acknowledged for the participation of G.H. in the experiment. P.K. acknowledges the support from the BMBF Grant No. 05P19RDFN1.

Published
2021

100. Manifestation of the Berry phase in the atomic nucleus 213Pb

Author

Valiente-Dobón, J.J., Gottardo, A., Benzoni, G., Gadea, A., Lunardi, S., Algora, A., de Angelis, G., Bazzacco, D., Benlliure, J., Boutachkov, P., Bracco, A., Bruce, A.M., Camera, F., Casarejos, E., Cortés, M.L., Crespi, F.C.L., Corsi, A., Domingo-Pardo, C., Doncel, M., Engert, T., Geissel, H., Gerl, J., Goasduff, A., Goel, N., Górska, M., Grebosz, J., Gregor, E., Habermann, T., Klupp, S., Kojouharov, I., Kurz, N., Lenzi, S.M., Leoni, S., Mandal, S., Menegazzo, R., Mengoni, D., Million, B., Morales, A.I., Napoli, D.R., Naqvi, F., Nociforo, C., Pfützner, M., Pietri, S., Podolyák, Zs., Prochazka, A., Recchia, F., Regan, P.H., Rudolph, D., Sahin, E., Schaffner, H., Sharma, A., Sitar, B., Siwal, D., Strmen, P., Szarka, I., Ur, C.A., Walker, P.M., Weick, H., Wieland, O., Wollersheim, H.-J., and Van Isacker, P.

Published
2021
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