Schottky mass measurements of heavy neutron-rich nuclides in the element range<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mn>70</mml:mn><mml:mo>≤</mml:mo><mml:mi>Z</mml:mi><mml:mo>≤</mml:mo><mml:mn>79</mml:mn></mml:mrow></mml:math>at the GSI Experimental Storage Ring

Shubina, Daria; Cakirli, Burcu; Litvinov, Yuri A.; Blaum, Klaus; Brandau, C.; Bosch, F.; Carroll, J. J.; Casten, R. F.; Cullen, D. M.; Cullen, I. J.; Deo, A. Y.; Detwiler, B.; Dimopoulou, Christina; Farinon, F.; Geißel, H.; Haettner, E.; Heil, M.; Kempley, R.S.; Kozhuharov, C.; Knöbel, R.; Kurcewicz, J.; Kuzminchuk, N.; Litvinov, S.; Liu, Z.; Mao, Ruishi; Nociforo, C.; Nolden, F.; Patyk, Z.; Plaß, W. R.; Procházka, A.; Reed, M. W.; Sanjari, M. S.; Scheidenberger, C.; Steck, M.; Stöhlker, Th.; Sun, B.; Swan, T.; Trees, G.; Walker, P. M.; Weick, H.; Winckler, N.; Winkler, M.; Woods, P. J.; Yamaguchi, Takayuki; Zhou, Chaobiao

doi:10.1103/physrevc.88.024310

Cited by 34 publications

(19 citation statements)

References 31 publications

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“…Nuclear masses are basic quantities for understanding many properties of atomic nuclei and also of nuclear processes in nuclear physics and astrophysics. Due to this, there are continuing big efforts in measuring them for more and more nuclei (some of them being very exotic ones), in increasing the accuracy of the measurements, but also in understanding the role of this progress in nuclear physics and astrophysics [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18].…”

Section: Introductionmentioning

confidence: 99%

Detailed illustration of the accuracy of currently used nuclear-mass models

Sobiczewski

Litvinov

Palczewski

2018

Atomic Data and Nuclear Data Tables

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The accuracy of description of measured nuclear masses by presently used nuclear-mass models is studied. Twelve models of various kinds are considered, eleven of the global character and one local model specially adapted to description of heavy nuclei. To decrease the number of nuclei over which the accuracy is averaged, the global region (Z, N ≥ 8) is divided into four subregions, in which the accuracy is studied separately. Still, to reach the best precision, the accuracy is finally investigated without any averaging, for each nucleus separately. The results are presented in a form of colored maps, large enough to be easily and accurately read.Besides the accuracy of the studied models, also their predictive power is considered.It is found that the accuracy of description of mass strongly depends on a nuclear-mass model and on the region of nuclei to which the model is applied. The best accuracy is obtained by the recent two Chinese models WS3+ and WS4+. Generally, no clear, strong correlation between the accuracy of description of already known masses by a given model and its predictive power for new masses is observed. Still, such correlation is found for separate models and in separate regions of nuclei. More often for the macroscopic-microscopic models than for the other approaches.

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Section: Introductionmentioning

confidence: 99%

Detailed illustration of the accuracy of currently used nuclear-mass models

Sobiczewski

Litvinov

Palczewski

2018

Atomic Data and Nuclear Data Tables

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“…These measurements could be useful in constraining mass models in this region. Approaching the r-process path in the rare earth region, masses of neutron-rich nuclei between Lu and Os were recently measured using SMS to similar accuracies [195] HIRFL-CSR. The Heavy Ion Cooler-Storage-Ring (HIRFL-CSR) at Lanzhou [183] is part of the postaccelerator system at the Heavy Ion Research Facility in Lanzhou (HIRFL).…”

Section: Storage Ringsmentioning

confidence: 99%

Current Status of r-Process Nucleosynthesis

Kajino,

Aoki,

Balantekin

et al. 2019

Preprint

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The rapid neutron capture process (r-process) is believed to be responsible for about half of the production of the elements heavier than iron and contributes to abundances of some lighter nuclides as well. A universal pattern of r-process element abundances is observed in some metal-poor stars of the Galactic halo. This suggests that a well-regulated combination of astrophysical conditions and nuclear physics conspires to produce such a universal abundance pattern. The search for the astrophysical site for r-process nucleosynthesis has stimulated interdisciplinary research for more than six decades. There is currently much enthusiasm surrounding evidence for r-process nucleosynthesis in binary neutron star mergers in the multiwavelength follow-up observations of kilonova/gravitational-wave GRB170807A/GW170817. Nevertheless, there remain questions as to the contribution over the history of the Galaxy to the current solar-system r-process abundances from other sites such as neutrino-driven winds or magnetohydrodynamical ejection of material from core-collapse supernovae. In this review we highlight some current issues surrounding the nuclear physics input, astronomical observations, galactic chemical evolution, and theoretical simulations of r process astrophysical environments with goal of outlining a path toward resolving the remaining mysteries of the r-process.

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“…The masses stemming from SMS and IMS are indicated by blue and red colours, respectively. The data on masses addressed by SMS are from [38,59,60,61,62,63,64] and by IMS are from [47,57,58,65,66,67,68]. The upper insert shows a part of the revolution time spectrum of 58 Ni projectile fragments measured by IMS in the CSRe.…”

Section: High-precision Mass Measurementsmentioning

confidence: 99%

“…For instance, a region of neutron-rich nuclei around 188 Hf is predicted to exhibit isomers with exceptional properties [70,71,72]. It was recently mapped using SMS [64,73,74,75].…”

Section: High-precision Mass Measurementsmentioning

confidence: 99%

Nuclear physics experiments with ion storage rings

Litvinov

Bishop

Blaum

et al. 2013

Nuclear Instruments and Methods in Physics Research Section B:

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In the last two decades a number of nuclear structure and astrophysics experiments were performed at heavy-ion storage rings employing unique experimental conditions offered by such machines. Furthermore, building on the experience gained at the two facilities presently in operation, several new storage ring projects were launched worldwide. This contribution is intended to provide a brief review of the fast growing field of nuclear structure and astrophysics research at storage rings

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Schottky mass measurements of heavy neutron-rich nuclides in the element range70≤Z≤79at the GSI Experimental Storage Ring

Cited by 34 publications

References 31 publications

Detailed illustration of the accuracy of currently used nuclear-mass models

Detailed illustration of the accuracy of currently used nuclear-mass models

Current Status of r-Process Nucleosynthesis

Nuclear physics experiments with ion storage rings

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