☆ 4.8 Article

First Experiment with HELIOS: The Structure of 13B

PHYSICAL REVIEW LETTERS (2010)

期刊

PHYSICAL REVIEW LETTERS

卷 104, 期 13, 页码 -

出版社

AMER PHYSICAL SOC

DOI: 10.1103/PhysRevLett.104.132501

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-

类别

Physics, Multidisciplinary

资金

U.S. Department of Energy, Office of Nuclear Physics [DE-AC02-06CH11357, DE-FG02-04ER41320]
NSF [PHY-02-16783, PHY-07-58099.]
STFC [PP/F000464/1, ST/F012071/1] Funding Source: UKRI
Science and Technology Facilities Council [ST/F012071/1, PP/F000464/1] Funding Source: researchfish

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Protocol

Reagent

摘要

A first experiment is reported that makes use of a new kind of spectrometer uniquely suited to the study of reactions with radioactive beams in inverse kinematics, the helical orbit spectrometer, HELIOS. The properties of some low-lying states in the neutron-rich N = 8 nucleus B-13 were studied with good resolution. From the measured angular distributions of the (d, p) reaction and the relative spectroscopic factors, spin and configuration assignments of the first- and third-excited states of this nucleus can be constrained.

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Article Physics, Nuclear

Border of the island of inversion: Unbound states in 29Ne

M. Holl, S. Lindberg, A. Heinz, Y. Kondo, T. Nakamura, J. A. Tostevin, H. Wang, T. Nilsson, N. L. Achouri, H. Al Falou, L. Atar, T. Aumann, H. Baba, K. Boretzky, C. Caesar, D. Calvet, H. Chae, N. Chiga, A. Corsi, H. L. Crawford, F. Delaunay, A. Delbart, Q. Deshayes, P. Diaz Fernandez, Z. Dombradi, C. A. Douma, Z. Elekes, P. Fallon, I Gasparic, J-M Gheller, J. Gibelin, A. Gillibert, M. N. Harakeh, A. Hirayama, C. R. Hoffman, A. Horvat, A. Horvath, J. W. Hwang, T. Isobe, J. Kahlbow, N. Kalantar-Nayestanaki, S. Kawase, S. Kim, K. Kisamori, T. Kobayashi, D. Koerper, S. Koyama, I Kuti, V Lapoux, F. M. Marques, S. Masuoka, J. Mayer, K. Miki, T. Murakami, M. Najafi, K. Nakano, N. Nakatsuka, A. Obertelli, F. de Oliveira Santos, N. A. Orr, H. Otsu, T. Ozaki, V Panin, S. Paschalis, A. Revel, D. Rossi, A. T. Saito, T. Y. Saito, M. Sasano, H. Sato, Y. Satou, H. Scheit, F. Schindler, P. Schrock, M. Shikata, Y. Shimizu, H. Simon, D. Sohler, O. Sorlin, L. Stuhl, S. Takeuchi, M. Tanaka, M. Thoennessen, H. Toernqvist, Y. Togano, T. Tomai, J. Tscheuschner, J. Tsubota, T. Uesaka, Z. Yang, M. Yasuda, K. Yoneda

Summary: In this study, the unbound states of Ne-29 were investigated for the first time. Through analyzing resonance properties, partial cross sections, and momentum distributions, some important conclusions were drawn, including the first evidence for f(7/2) single particle strength in Ne-29.

PHYSICAL REVIEW C (2022)

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Article Physics, Nuclear

νi13/2 structures in 155Sm and 159Gd: Supporting evidence of a Z=60 deformed subshell gap

D. J. Hartley, F. G. Kondev, M. P. Carpenter, R. V. F. Janssens, M. A. Riley, K. Villafana, K. Auranen, A. D. Ayangeakaa, J. S. Baron, A. J. Boston, J. A. Clark, J. P. Greene, J. Heery, C. R. Hoffman, T. Lauritsen, J. Li, D. Little, E. S. Paul, G. Savard, D. Seweryniak, J. Simpson, S. Stolze, G. L. Wilson, J. Wu, S. Zhu

Summary: Maximal ground-state deformation is expected when both proton and neutron Fermi surfaces are located at midshell, but stable large deformations can also occur at other proton or neutron values. Evidence of this has been observed in the rare-earth region, specifically at Z = 60. Further evidence of the deformed gap has been found by studying the signature splitting systematics of nu i13/2 bands in odd-N, rare-earth nuclei, and confirmed through particle transfer experiments.

PHYSICAL REVIEW C (2022)

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