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Evolution of the nuclear spin-orbit splitting explored via the $^{32}$Si($d$,$p$)$^{33}$Si reaction using SOLARIS
/ Chen, J. (SUSTech, Shenzhen ; Argonne) ; Kay, B.P. (Argonne) ; Hoffman, C.R. (Argonne) ; Tang, T.L. (Argonne) ; Tolstukhin, I.A. (Argonne) ; Bazin, D. (Michigan State U.) ; Lubna, R.S. (Michigan State U.) ; Ayyad, Y. (Santiago de Compostela U., IGFAE) ; Beceiro-Novo, S. (Michigan State U.) ; Coombes, B.J. (Australian Natl. U., Canberra) et al.
The spin-orbit splitting between neutron 1$p$ orbitals at $^{33}$Si has been deduced using the single-neutron-adding ($d$,$p$) reaction in inverse kinematics with a beam of $^{32}$Si, a long-lived radioisotope. Reaction products were analyzed by the newly implemented SOLARIS spectrometer at the reaccelerated-beam facility at the National Superconducting Cyclotron Laboratory. [...]
arXiv:2404.05434.-
2024-04-29 - 10 p.
- Published in : Phys. Lett. B 853 (2024) 138678
Fulltext: 2404.05434 - PDF; Publication - PDF;
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Intruder configurations in $^{29}$Ne at the transition into the island of inversion: Detailed structure study of $^{28}$Ne
/ Wang, H. (RIKEN (main)) ; Yasuda, M. (Tokyo Inst. Tech.) ; Kondo, Y. (Tokyo Inst. Tech.) ; Nakamura, T. (Tokyo Inst. Tech.) ; Tostevin, J.A. (Tokyo Inst. Tech. ; Surrey U.) ; Ogata, K. (Kyushu U., Fukuoka (main) ; Osaka U., Res. Ctr. Nucl. Phys.) ; Otsuka, T. (CERN ; Nishina Ctr., RIKEN) ; Poves, A. (Madrid, Autonoma U.) ; Shimizu, N. (Tsukuba U.) ; Yoshida, K. (JAEA, Ibaraki) et al.
Detailed $\gamma$-ray spectroscopy of the exotic neon isotope $^{28}$Ne has been performed for the first time using the one-neutron removal reaction from $^{29}$Ne on a liquid hydrogen target at 240~MeV/nucleon. Based on an analysis of parallel momentum distributions, a level scheme with spin-parity assignments has been constructed for $^{28}$Ne and the negative-parity states are identified for the first time. [...]
arXiv:2306.16189.-
2023-06-20 - 11 p.
- Published in : Phys. Lett. B 843 (2023) 138038
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Direct Determination of Fission-Barrier Heights Using Light-Ion Transfer in Inverse Kinematics
/ Bennett, S.A. (Manchester U.) ; Garrett, K. (Manchester U.) ; Sharp, D.K. (Manchester U.) ; Freeman, S.J. (Manchester U. ; CERN) ; Smith, A.G. (Manchester U.) ; Wright, T.J. (Manchester U.) ; Kay, B.P. (Argonne, PHY) ; Tang, T.L. (Argonne, PHY) ; Tolstukhin, I.A. (Argonne, PHY) ; Ayyad, Y. (Santiago de Compostela U., IGFAE) et al.
We demonstrate a new technique for obtaining fission data for nuclei away from $\beta$-stability. These types of data are pertinent to the astrophysical \textit{r-}process, crucial to a complete understanding of the origin of the heavy elements, and for developing a predictive model of fission. [...]
arXiv:2304.10281.-
2023-05-19 - 6 p.
- Published in : Phys. Rev. Lett. 130 (2023) 202501
Fulltext: Publication - PDF; 2304.10281 - PDF;
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Probing the quadrupole transition strength of $^{15}$C via deuteron inelastic scattering
/ Chen, J. (Argonne) ; Kay, B.P. (Argonne) ; Tang, T.L. (Argonne) ; Tolstukhin, I.A. (Argonne) ; Hoffman, C.R. (Argonne) ; Li, H. (Lanzhou, Inst. Modern Phys.) ; Yin, P. (Lanzhou, Inst. Modern Phys.) ; Zhao, X. (Lanzhou, Inst. Modern Phys.) ; Maris, P. (Iowa State U.) ; Vary, J.P. (Ames Lab) et al.
Deuteron elastic scattering from 15C and inelastic scattering reactions to the first excited state of 15C were studied using a radioactive beam of 15C in inverse kinematics. The scattered deuterons were measured using HELIOS. [...]
arXiv:2209.12252.-
2022-12-12 - 9 p.
- Published in : Phys. Rev. C 106 (2022) 064312
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Evolution of single-particle structure near the $N=20$ island of inversion
/ MacGregor, P T (Manchester U.) ; Sharp, D K (Manchester U.) ; Freeman, S J (Manchester U.) ; Hoffman, C R (Argonne, PHY) ; Kay, B P (Argonne, PHY) ; Tang, T L (Argonne, PHY) ; Gaffney, L P (Liverpool U. ; CERN) ; Baader, E F (CERN) ; Borge, M J G (Madrid, Inst. Estructura Materia) ; Butler, P A (Liverpool U.) et al.
The single-particle properties of $^{29}$Mg have been investigated via a measurement of the $^{28}$Mg(d,p) 29Mg reaction, in inverse kinematics, using the ISOLDE Solenoidal Spectrometer. The negative-parity intruder states from the f p shell have been identified and used to benchmark modern shell-model calculations. [...]
2021 - 7 p.
- Published in : Phys. Rev. C 104 (2021) L051301
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First Exploration of Neutron Shell Structure Below Lead and Beyond $\boldsymbol{N=126}$
/ Tang, T.L. (Argonne) ; Kay, B.P. (Argonne) ; Hoffman, C.R. (Argonne) ; Schiffer, J.P. (Argonne) ; Sharp, D.K. (Manchester U.) ; Gaffney, L.P. (CERN) ; Freeman, S.J. (Manchester U.) ; Mumpower, M.R. ; Arokiaraj, A. ; Baader, E.F. (CERN) et al.
The nuclei below lead but with more than 126 neutrons are crucial to an understanding of the astrophysical $r$-process in producing nuclei heavier than $A\sim190$. Despite their importance, the structure and properties of these nuclei remain experimentally untested as they are difficult to produce in nuclear reactions with stable beams. [...]
arXiv:2001.00976; LA-UR-19-30930.-
2020-02-14 - 7 p.
- Published in : Phys. Rev. Lett. 124 (2020) 062502
Fulltext: PDF; Fulltext from Publisher: PDF;
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Determining the 7Li(n,gamma) cross section via Coulomb dissociation of 8Li
/ Izsak, R. (Eotvos U., Dept. Atomic Phys.) ; Horvath, A. (Eotvos U., Dept. Atomic Phys.) ; Kiss, A. (Eotvos U., Dept. Atomic Phys.) ; Seres, Z. (Wigner RCP, Budapest) ; Galonsky, A. (Michigan State U., NSCL) ; Bertulani, C.A. (Texas A-M, Commerce) ; Fulop, Zs. (Debrecen, Inst. Nucl. Res.) ; Baumann, T. (Michigan State U., NSCL) ; Bazin, D. (Michigan State U., NSCL) ; Ieki, K. (Rikkyo U., RCMAS) et al.
The applicability of Coulomb dissociation reactions to determine the cross section for the inverse neutron capture reaction was explored using the reaction 8Li(gamma,n)7Li. A 69.5 MeV/nucleon 8Li beam was incident on a Pb target, and the outgoing neutron and 7Li nucleus were measured in coincidence. [...]
arXiv:1312.3498.-
2013-12-23 - 9 p.
- Published in : Phys. Rev. C 88 (2013) 065808
Fulltext: PDF; External link: Preprint
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The ($t, p$) reaction on $^{66}$Ni
/ Kay, B P (Department of Physics, University of York, Heslington, York YO10 5DD, UK) ; Chiara, C J (Dept. of Chemistry and Biochemistry, University of Maryland, College Park, MD 20742, USA and Physics Division, Argonne National Laboratory, Argonne, Illinois 60439, USA) ; Raabe, R (Leuven U.) ; Andreyev, A N (Department of Physics, University of York, Heslington, York YO10 5DD, UK) ; Back, B B (Physics Division, Argonne National Laboratory, Argonne, Illinois 60439, USA) ; Boston, A J (Oliver Lodge Laboratory, University of Liverpool, Liverpool L69 7ZE, UK) ; Butler, P A (Oliver Lodge Laboratory, University of Liverpool, Liverpool L69 7ZE, UK) ; Carpenter, M P (Physics Division, Argonne National Laboratory, Argonne, Illinois 60439, USA) ; Catford, W N (Department of Physics, University of Surrey, Guildford, Surrey GU2 7XH, UK) ; Cederkall, J (Physics Department, Lund University, Box 118, SE-221 00 Lund, Sweden) et al.
CERN-INTC-2012-066 ; INTC-P-367.
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2012.
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